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Rating is 4.8 out of 5.
4.8/5
based on 3,427 client reviews
  • $195 hourly

    • 5.0/5
    • (321 jobs)
    Hi! Upwork uses my first name, Royce, but I go by Aaron (my middle name). I am a quantitative /systematic trader that also helps others with all things related to running algorithmic trading systems. This includes tasks such as system modeling/backtesting, data collection/storing, signal processing based on technical indicators, portfolio and position risk management, etc. I am a skilled programmer that writes well documented and organized code that is easy to follow and build upon. I provide even more value with my trading knowledge and experience. I've contributed to hundreds of successful projects to date, and look forward to taking on many more. Some of my specialties includes using QuantConnect (where I am a recommended consultant), Interactive Brokers API integration, TradeStation, and TradingView. I've learned a lot about technical analysis going through the Chartered Market Technician (CMT) program where I've passed all three of the exams on my first try. I'm currently working on becoming a chartered member. My past and current clients include investment/financial advisors, portfolio managers, CTAs, and professional traders. I also work with individuals that are just getting started in trading. Check out the testimonal below to see what an active client who manages around 150M+ AUM had to say about working with me. If you are interested in learning how to write algorithms for QuantConnect, I've created a training course of 22 different algorithms that I explain in 27 videos, almost 17.5 hours of instruction. Message me if you are interested, and I can send you more information.
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Trading Strategy
    Trading Automation
    Financial Trading
    Derivatives Trading
    Quantitative Finance
    Quantitative Analysis
    Project Risk Management
    Forex Trading
    Quantitative Research
    Algorithm Development
    Python
    Cryptocurrency
    Investment Research
    Financial Analysis
    Financial Modeling
  • $70 hourly

    • 5.0/5
    • (145 jobs)
    As a research consultant with over 15 years of global experience, I specialize in delivering actionable insights through both qualitative and quantitative methods. I guide clients in designing effective research strategies—whether surveys or interviews—tailored to answer key business questions. From survey design (SurveyMonkey) to data analysis (SPSS/Excel for quantitative and NVivo for qualitative), I offer full-cycle research support, including strategic reporting. With expertise across multiple countries and industries, I’m here to help make your data-driven decisions smarter and faster. Background: I hold two graduate degrees in marketing and business statistics from a U.S. university and have worked across Europe, the U.S., and the Middle East.
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Internet Survey
    Data Analysis
    SurveyMonkey
    Statistics
    Product Development
    Quantitative Analysis
    Survey
    UX Research
    NVivo
    Market Research
    Market Analysis
    Survey Design
    Qualitative Research
  • $115 hourly

    • 5.0/5
    • (33 jobs)
    I'm an experienced data scientist specializing in time series data and Large Language Models. I excel in solving complex business challenges through tailored solutions and expert consultation. "Greg knows LLM tools like langchain *really* well. He understood a genuinely tough problem and helped me solve it super fast. Highly recommended!" "Grzegorz Wiktorowicz, is a great financial developer...he understands the problem very quick and and dig that problem in minute manner and sloves it...hoping to catch with him in future projects .thanku" "Thank you very much sir for the super fast and extremely professional algorithm and program creation. I am super happy that we have met and I definetely would like to work together in many many more projects together." "Very professional and quick! Extremally detailed response and provided with ways to improve our business as an extra! We will for sure hire again! Thanks again" With over a decade of experience, I've successfully addressed a wide range of business issues, including internet casinos, sports betting, logistic optimization, and stock trading, among others. Employing detailed analysis and strategic resource planning, I've consistently delivered results that meet or exceed client expectations. Proficient in Python, C, and SQL, I hold cloud-native certifications as a Google Cloud ML Engineer and Data Engineer. Beyond task execution, I possess a deep understanding of methodologies, their strengths, and limitations. My background as a former scientist uniquely positions me to ensure your projects align with best practices and achieve your objectives. My adaptability and extensive knowledge make me an ideal partner for your data science needs. Whether you require data-driven solutions, want to discuss your project's unique demands, or need guidance on best practices, please don't hesitate to reach out. Initial consultations are free, and I'm eager to collaborate with you to achieve your goals. EXPERTISE: - data science and analytics - data engineering and management - Machine learning and AI - Quant trading - Data visualization and storytelling - Cloud engineering SKILLS: Python (full data stack, incl. Pandas, SciPy, Scikit-Learn, jupyter, plotly) Time Series Analysis/Forecasting (financial, trading, observations, predictions) Data visualisation - Looker Studio Masterclass certification GCP (BigQuery, Storage strategies, ETL, ML, migration, efficiency and cost reduction) - Google Cloud Professional Data Engineer certification - Google Cloud Machine Learning Engineer certification LLM (langchain, pinecone, llama.cpp, transformers, OpenAI, chatGPT) Git, docker, MATLAB, slurm, bash, linux, SQL (GoogleSQL, Postgres, MySQL) Statistics (academic level, incl. data analysis and modelling, Monte Carlo, bootstrapping, hypothesis testing) >> Drop me a massage so we can analyze your needs together (it's free!)
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Mathematics
    BigQuery
    LangChain
    LLM Prompt Engineering
    Quantitative Analysis
    Statistics
    Google Cloud Platform
    Data Analysis
    Optimization Modeling
    Astrophysics
    ChatGPT
    Time Series Analysis
    Data Science
    Machine Learning
    MATLAB
    Python
  • $75 hourly

    • 5.0/5
    • (58 jobs)
    Experienced Qualtrics survey specialist with additional expertise in data analysis and visualization with Google Sheets, App Script and Data Studio. I have been the Qualtrics Brand Administrator for my organization since 2014. Professionally, I am a professor with more than 30 years of teaching including medical statistics at a med school. I share a passion for collection, management, analysis and presentation of data. My Qualtrics skills include: * Survey design and creation * Perform extensive logic implementation through embedded fields and survey flow * Implement quota requirements * Display and skip logic as well as loop and merge * Panel integration and deployment * Set up email and contact list triggers * Customized reports with data visualization * Data analysis including cross-tabulations * Advanced question customization with JavaScript * Use scoring to create tests and assessments * Use advanced look and feel settings to promote client brand Additional skills: * Deploy surveys on Prolific and MTurk * Extended analysis of Qualtrics data using Google Sheets and Data Studio. * Sheet automation with Google App Script * Excellent communication skills in English * Advanced user of Microsoft Office suite Languages: English Should my profile be of interest to you, please feel free to ask for any additional information. You will find me to be prompt, honest and sincere.
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Data Analysis
    Qualtrics
    Survey Design
    Lectora
    Quantitative Analysis
    Elearning
    Google Apps Script
    Google Sheets
    Looker Studio
    Microsoft Excel
  • $75 hourly

    • 4.9/5
    • (97 jobs)
    I'm a Top Rated Plus independent market research professional with expertise in all facets of B2B and B2C primary research: Survey Design, Survey Programming, Survey Fielding/Deployment, Qualitative Interviewing/Moderating, Data Analysis, and Report Writing/Presentation. With over 20 years of experience, I bring a deep understanding of research methodologies, techniques, and best practices. I develop and execute custom studies that deliver insights in areas such as: • Brand Awareness & Equity • Messaging & Positioning • Segmentation & Personas • Customer Satisfaction & Experience • Customer Retention • New Products & Concepts • Win-Loss • Buyer's Journey • Trend Analysis & Future Insights • Thought Leadership TOOLS & TECHNIQUES: • Alchemer • Qualtrics • SurveyMonkey • Max-Diff • Conjoint • Jobs to Be Done • Net Promoter • Online Panels • SPSS INDUSTRY EXPERIENCE: • A.I. • Construction • Consumer Products and Services • Cybersecurity • Fintech • Healthcare • Manufacturing • Nonprofit • Pharma • Publishing/Media • Software/SaaS (Enterprise and Consumer) • Telecom • And more! Please see the feedback from the many satisfied clients I've collaborated with on Upwork (over 30 five-star reviews).
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Internet Survey
    B2B Marketing
    Quantitative Analysis
    Survey
    Survey Data Analysis
    Market Research Interview
    Report Writing
    Brand Research
    SurveyMonkey
    Market Analysis
    Consumer Research
    Qualitative Research
    Quantitative Research
    Survey Design
    Market Research
  • $130 hourly

    • 4.9/5
    • (69 jobs)
    Quant in major Investment Banks, 1B+ Hedge Funds and asset management companies, and Crypto Fund Manager. I have strong knowledge of the financial markets, particularly in Trading Strategies, Asset Allocation, Investments, Derivatives, and Risk. I am a motivated self-starter, analytical, in love with complex tasks and empirical solutions, delivering actual value to investment companies. My skills vary from time series modeling to Machine Learning, Asset Allocation strategies, Systematic Trading, Investment Research, and more.
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Quantitative Analysis
    Quantitative Finance
    Quantitative Research
    Bot Development
    Cryptocurrency
    Econometrics
    Artificial Intelligence
    Forex Trading
    Investment Strategy
    Time Series Analysis
    Deep Learning
    R
    Machine Learning
    Python
    MATLAB
    Data Science
  • $60 hourly

    • 4.9/5
    • (195 jobs)
    I am a freelance statistical consultant/data analyst and an educational psychologist (Ph.D) with a foundation in statistics and data analysis. I have 8+ years of experience in research/data analytics, social and behavioral science research, and teaching college students (both at the undergraduate and graduate level). I am fluent in numerous statistical analysis programs such as SPSS, R/Rstudio, and JASP. I enjoy conducting quantitative analysis and problem-solving. Please feel to contact me with all your research and data analysis inquiries. Educational and Research Background: I am currently an educational psychology Ph.D. Student. I have both my master's degree and a bachelor's degree in psychology. I have conducted numerous research projects revolving around the identity formation of emerging adults' college students. I have a year's worth of experience as a research analyst intern where I conducted data analysis for numerous population health-based projects which topics included: resident burnout, dystocia, ventilation survivability, clinician bullying preparedness, the hospital-based prevalence for medical cases (i.e. domestic violence, lead poisoning, immunization records, and child abuse) and medical cases NYC GIS mapping (i.e. lead poison, eating disorders, domestic violence, etc.). My master thesis examined the differences in vocational identity and coping strategies among emerging adults in college by their current employment status and work experiences. Main Services Includes (but not limited): Statistical Analysis Creating Data Visualization Graphs & Tables for Statistical Results Writing APA-Style Statistical Reports Writing General Summary for Statistical Results Creating PowerPoint Presentations for Statistical Results Statistical Programs/Software Skills: SPSS R/RStudio JASP Jamovi GPower Excel Statistical Analysis Skills Include: Descriptive Statistics Data Visualization (Univariate, Bivariate, and Multivariate Visualizations) Data Cleaning/Feature Engineering Missing Data Imputation Correlation Analysis Linear Regression Models Bayesian Inference Generalized Linear Models (i.e., Logistic, Poisson, Ordinal. etc.) Regularized Regression Models (Ridge, Lasso, &E Elastic Net) Moderation and Mediation Analysis t-test Analysis ANOVA Models (ANOVA/ANCOVA/MANOVA) Linear Discriminant Analysis Multilevel Modeling/Hierarchical Linear Modeling Generalized Multilevel Modeling/Generalized Hierarchical Linear Modeling Factor Analysis (Exploratory and Confirmatory) Path Analysis and Structural Equation Modeling Non-Parametric Analysis Power Analysis Robust Statistics Survival Analysis & Cox Regression Meta-Analysis & Meta-Regression Modeling Ecological Inference Time Series Analysis (ARIMA, SARIMA, VARIMAX) ITEM Response Theory Supervised Machine Learning Algorithms (Linear Regression, Logistic Regression, Decision Trees, etc.) Unsupervised Machine Learning Algorithms (Kmeans, K nearest Neighbors, Apiori etc.) Other Skills: Advanced in Microsoft Office Programs (i.e. Word, Excel, PowerPoint) Proficient with Python Programming language Proficient with online survey distribution programs such as Qualtrics, Survey Monkey, Google Survey, and REDCap Proficient with digital movie maker programs such as Windows Movie Maker and I-Movie
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Data Analysis
    Statistical Analysis
    Statistics
    Tutoring
    Quantitative Analysis
    Hypothesis Testing
    R
    Logistic Regression
    Data Visualization
    Machine Learning
    IBM SPSS
    Linear Regression
  • $75 hourly

    • 4.9/5
    • (176 jobs)
    Unlock Data-Driven Success with Fayaz Saeed – Expert Data Analyst 🚀 🔍 Transform Business Insights with Advanced Data Analysis & Reporting Struggling with decision-making? Harness your data to drive 20% more growth. I provide real-time, actionable insights tailored to your needs. Why Choose Me? 🥇 Top-Rated Plus: 100% Job Success 📊 Proven Success: 1000+ Reports, 75% Repeat Clients 🌍 Global Expertise: 200+ Projects Worldwide 🔧 Services: - Business Intelligence & Reporting - Data Visualization & Dashboards - ETL & Automated Data Solutions 🛠 Tools: Zoho Analytics, Tableau, Power BI, SQL, Google Looker Studio, Sisense, and more. 💬 Client Feedback: "Exceeded expectations—delivered more than we asked for!" Let’s unlock your data's full potential. Contact me today!
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Sage 50cloud
    Analytics Dashboard
    CPA
    Accounting Basics
    BigQuery
    Zoho Creator
    Inventory Management
    Quantitative Analysis
    Financial Accounting
    Data Visualization
    Klipfolio
    Looker Studio
    Sisense
    Tableau
    Zoho Analytics
    Microsoft Power BI
  • $150 hourly

    • 5.0/5
    • (30 jobs)
    Services: - Development of algorithmic trading systems for a wide range of assets including equities, futures, options, crypto and forex - Automation, backtesting and quantitative research - Evaluation, optimization and consulting to improve investment strategies such as avoiding backtest overfitting and other common pitfalls - Creation of customized indicators, factors, signal services and market scanners including automated notifications - Development and enhancement of framework modules such as execution algorithms (including TCA) and portfolio optimization models - Increasing the efficiency of trading algorithms so that large amounts of streaming data can be processed faster and less hardware resources are required Technologies & Tools: - Python including a wide range of libraries like pandas, numpy, numba, scikit-learn, matplotlib, seaborn and many more - QuantConnect / LEAN - Git and GitHub for version control and collaboration - Supported brokers for live and paper trading: Interactive Brokers (IB), Tradier, Binance etc. Bio: Quantitative trader and mathematician with strong affinity to financial markets and coding. Extensive experience in design, development and analysis of algorithmic trading strategies. I have been trading various financial instruments (equities, futures, options and currencies) for more than 10 years, whereas my approach has become more and more systematic over the years. I graduated with a Master's degree in Mathematics at University of Technology Dortmund (Germany) in 2016. My master thesis is about Schroedinger asymptotic of wave equations in periodic media. The subject belongs to the field of nonlinear partial differential equations and has applications in signal transmission using fiber optics technology. I then worked as an IT Consultant for 3+ years and was mainly employed as a data warehouse engineer and ETL developer in the regulatory reporting department of large financial institutions. I currently work full-time as a professional Quant Developer and have already invested many thousands of hours in R&D of financial markets and systematic trading strategies, building a deep knowledge of quantitative finance and algorithmic trading. Other remarks: My algorithms are always professionally designed and well documented, making them easy to follow. I mostly use the framework approach, so that the code is modular, pluggable and clearly structured, which also makes it much easier to perform adjustments or extensions. I am willing to sign a NDA, if desired, so that the intellectual property (IP) rights remain with you.
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Trading Automation
    Scripting
    Capital Markets
    Machine Learning
    Financial Modeling
    Python
    Quantitative Analysis
    Investment Strategy
    Quantitative Finance
    Software Development
    Automation
    Quantitative Research
    Statistics
    Mathematics
    Algorithm Development
  • $100 hourly

    • 4.8/5
    • (77 jobs)
    Do you need help activating more users, retaining subscriptions, or driving sales? I've helped over 70 clients achieve these goals through data-driven decisions. No matter your size and industry, I got you covered. I have worked for startups in e-commerce to scaleups in health. Here is what they say: ✔️ "Ivan was a fantastic team player, always happy to jump in and help when needed." ✔️ "Very knowledgeable & fast turnaround. Provided good opinions on options." ✔️ "Ivan was highly professional. In addition, he suggested more ideas behind the project, and we appreciate that." ✔️" Ivan knows his stuff about Mixpanel and metrics. He has excellent communication skills and is self-driven. I look forward to working with him again!" As a client, maybe you recognize yourself in some of these circumstances: 💡 "We released new features and want to track everything!" 💡 "We will launch a new product, but we don't know how to measure it." 💡 "We implemented our analytics, but now we want to do it the right way," 💡 "We have much data but don't trust it." 💡 "We are using Mixpanel or Amplitude, but now the project is too noisy." Here's what clients achieve when working with me: ⭐ Improve their metrics visibility drastically. ⭐ Start trusting and understanding data. ⭐ Get critical insights that improve product and business. ⭐ Improve their data governance. ⭐ Align their team around data. I have worked in the digital industry for over ten years as an entrepreneur, product owner, and manager. I have worked with every type of team, from marketing to customer success, and every kind of seniority, from internships to C-level. I have also been hired as an employee to know what a team, product, and business need to succeed in analytics. My methodology: 1. Analytics strategy: Every product is different, so I help you create the perfect tracking plan adapted to your most relevant business goals and product KPIs. 2. Implementation support. I provide the help your development team deserves and ensure everyone is on the same page. 3. QA assurance: I test your implementation to ensure everything is implemented correctly. Visualization and dashboarding: I create the dashboards so you can visualize your KPIs as soon as possible. 4. Training: I train company teams to use data and analytics tools efficiently and understand their data more clearly. Some numbers to better understand my background: ✔️ 60+ clients exclusively in analytics. ✔️ 10+ years in the digital industry. ✔️ Top Rated freelancer with 99% job success. ✔️ My analysis impacted 10M+ clients' users. ✔️ Mixpanel Certified Partner and Implementation Expert since 2020. ✔️My favorite data tools are Mixpanel and Amplitude. I also work with Segment, Appsflyer, Adjust, Branch, RevenueCat, Purchasely, Customer.io, OneSignal, and Hubspot. Are you ready to unlock your data's full potential? Let's connect and take your analytics to the next level.
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Amplitude
    Product Strategy
    Data Analysis
    Google Analytics
    Google Tag Manager
    Mixpanel
    Marketing Analytics
    Web Analytics
    Quantitative Analysis
    Heap
    Looker Studio
    Analytics
    Startup Consulting
    Product Analytics
  • $79 hourly

    • 4.9/5
    • (161 jobs)
    Hailing from Philippines to France, Kristine has 10+ years of experience in her field and part of Upwork's top 1% freelancers in the EVT (Expert-Vetted talent) program. She was a business analyst for Samsung Electronics and a data analyst and statistician with extensive experience working for the world's largest market research companies, Kantar TNS and GfK, having serviced clients such as J&J, P&G, Nestlé, Kraft, Panasonic, LG and Electrolux to name a few. She has attended rigorous training in the PH and Singapore specializing in behavioral analytics and market segmentation. She is now a legally registered professional in France providing end-to-end data analytics solutions under her own boutique market research firm, Keenekt. She specialized in the field of social science, research and statistics during her years at the Ateneo De Manila University, the most prestigious university in the Philippines, while holding the position of VP for the Ateneo Statistics Circle, the premiere research and statistics organization in the university. For a detailed list of her skills and expertise, please see below: *Full service market research - project management from scratch to finish, instrument creation, analysis framework, data gathering and processing, data analysis, report creation and reporting. ➤ Expert in the following activities: *Questionnaire and survey design *Developing an analysis framework *Sampling, weighting and methodology *Quantitative and Qualitative data analysis *Statistical data analysis *Open-ended coding / Thematic analysis *Automation of charting / tabulation ➤ Experience in Quant and Qual projects: *Market Segmentation / Customer Persona studies *Interviews and Focus Group Discussions *Usage, Attitude and Image studies (UAI) *Awareness, Attitude and Image studies (AAI) *Social research surveys / Opinion polls *Packaging and Concept tests *Product tests such as Product Quality Benchmarking (PQB), Quality Improvement (QI), Cost Reduction Test (CRT), etc. ➤ Knowledgeable in the use of the following softwares/platforms: *Microsoft PowerPoint, Word and Excel *IBM-SPSS *Q Research Software *Qualtrics (Certified Qualtrics Technical Professional and CoreXM Expert) *Infographics / Dashboard creation *TypeForm, SurveyMonkey, Alchemer, etc. ➤ Knowledge on data analysis includes: *Cohort analysis, survival analysis and longitudinal analysis, etc. *Competitor analysis and benchmarking *Significance testing, drivers analysis and cluster analysis, etc. *Penalty, alienation and category drivers analysis, etc. *Regression, correlation, ANOVA, test of means, etc. For a more in-depth background history, please refer below: Kristine graduated in the top 5% of her batch from the Ateneo De Manila University with a Bachelors degree in Social Sciences and Statistics plus a double minor in Japanese Studies and Cultural Anthropology. Apart from her courses in research and statistics, she also managed projects under her organization, The Ateneo Statistics Circle as the VP. They catered to other internal organizations and to external clients by providing them with the research services that they needed. Being strongly motivated to enhance her skills, she worked in a global market research agency, Taylor Nelson Sofres (TNS) in which she was able to hone her skills. She was an analyst within the Innovation and Product Development (IPD) team that specialized in customized research providing insight, analysis and concrete solutions in the client decision-making process for their products such as the dimensions that need to be improved and the steps that need to be taken to ensure success prior to product launch. Her training focused on statistical analysis, project management and data analysis. In search of opportunities to expand her knowledge, she entered into a German market research company, Gesellschaft fur Konsumforschung (GfK), in the Retail and Technology group managing the Home Appliance and Consumer Electronics panel. She has undergone intensive training both locally and abroad. She was in charge of QC, analyzing and client reporting of syndicated market research data managing accounts for the top brands such as LG, Haier, Samsung, Sony and Electrolux, etc. Opportunity knocked once more and she was offered a position in Samsung Electronics Corp. where she worked as a Business Analyst under the Strategic Planning & Intelligence group. Responsible for managing a full service in-house market research team of 70 people that started the internal field force from scratch, creating the process and materials, field force and operations training, data gathering, processing, analysis, forecasting and reporting. She has since established herself as a professionally registered market research data analyst in France, pursuing higher education and experience in the European market while continuing to service clients internationally around the globe through her own boutique market research firm, Keenekt.
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Quantitative Analysis
    Quantitative Research
    Critical Thinking Skills
    Survey Design
    Brand Research
    Qualtrics
    Data Processing
    Qualitative Research
    Statistics
    Data Interpretation
    Data Analysis
    Microsoft Excel
    Customer Service Analytics
    Sales Analytics
  • $90 hourly

    • 5.0/5
    • (44 jobs)
    Hello! I'm an experienced and helpful research professional with over 20 years of survey research experience. I apply my knowledge of best practices to maximize your response rates and the reliability and usefulness of your results. I guarantee you’ll be happy with the service I provide! I have over 20 years experience conducting surveys and other social science research methods in business, government, and academic settings. I have a PhD in Social Psychology and have taught survey and research methods in undergraduate and graduate programs. I specialize in questionnaire design, testing, and analysis, but I have experience in other quantitative and qualitative methods too, especially focus groups and content analysis. I love helping people answer questions. I'm looking forward to helping you! To avoid conflicts of interest, I do not conduct research that is paid for by, or is conducted on behalf of, any national government, including the US federal government, political parties, or organizations that lobby for political issues. I also don’t work on “push polls” or deliberately biased surveys. Thanks for your understanding!
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Data Analysis
    Survey Design
    Qualitative Research
    SurveyMonkey
    Customer Experience Research
    Statistics
    Consumer Research
    Market Research
    Quantitative Analysis
    Internet Survey
    Survey
    Quantitative Research
  • $90 hourly

    • 5.0/5
    • (26 jobs)
    Hello! I am a multifaceted professional in the realm of quantitative development, algorithmic trading, and data engineering, based in Chicago. I hold a Master's degree in Financial Engineering from the University of Illinois and have honed my skills across various technical domains including Python, R, SQL, Java, and Linux OS. I excel in setting up and managing complex data workflows, particularly in Linux environments, and I'm adept at creating efficient ETL pipelines that facilitate seamless data integration and transformation. Here’s what I bring to the table: • Quantitative Development & Algorithmic Trading: Designing and implementing advanced trading algorithms that improve decision-making and market performance. • Data Engineering: Architecting and managing ETL pipelines, ensuring data accuracy and availability for real-time analytics. • Linux OS Expertise: Optimizing operating systems for high-performance computing and secure data operations. • Machine Learning & Financial Modeling: Utilizing statistical models to predict market trends and enhance trading strategies. As a top-performing freelancer on UpWork, recognized within the top 3% and awarded the "Top-Rated Plus" badge, I am committed to delivering exceptional value and precision in every project. Whether you need expert advice on setting up your trading systems, managing your data infrastructure, or developing predictive models, I am ready to help you achieve your objectives with cutting-edge solutions. Check out my work on Github: Github.com/chicago-joe
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Trading Automation
    ETL Pipeline
    API
    MySQL
    Quantitative Analysis
    Data Modeling
    Quantitative Finance
    Data Science
    Data Visualization
    R
    Machine Learning
    Python
    Data Analysis
  • $120 hourly

    • 4.9/5
    • (248 jobs)
    Tradestation EasyLanguage Programming by an active trader. Expertise includes custom coding for indicators, automated trading strategies, and training on TradeStation and EasyLanguage. I have 20+ years as a programmer (developer) with 10+ years specializing as an EasyLanguage programmer. As an active trader, I bring a deep knowledge of the financial markets, which helps me translate the clients’ ideas into an efficient strategy. I have consulted with clients around the world to develop simple to very complex automated trading strategies. Let's discuss how we can turn your ideas into an automated trading strategy or indicator! In addition, I enjoy training clients who are new to TradeStation or clients who need a few pointers. I provide training on TradeStation's platform and EasyLanguage Programming.
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Quantitative Finance
    Quantitative Analysis
    Automation
    Forex Trading
    Stock Option Agreement
    Algorithm Development
    EasyLanguage
    Object-Oriented Programming
    Training
    TradeStation
    Project Management
    Software Development
  • $25 hourly

    • 4.9/5
    • (33 jobs)
    Welcome to my profile! As a top-rated plus construction estimating and quantity surveying specialist on Upwork, I provide a wide range of services to contractors, including quantity takeoff, material takeoff, estimating, bill of quantities, and more. With over 07 years of experience in the industry, I have developed a deep understanding of construction materials, methods, and processes. I am an expert in using industry-leading software programs such as Planswift, Bluebeam Revue, On-screen Takeoff, Roof Snap, and Microsoft Excel to prepare bids and estimates for contractors. My proficiency in these programs allows me to accurately and efficiently perform takeoffs for all types of construction projects. Throughout my career, I have helped contractors save time and money by identifying potential cost savings and value engineering opportunities. I have also collaborated with project managers, engineers, and other team members to ensure that estimates and takeoff information are accurate and complete. I take great pride in my attention to detail and organizational skills, which enable me to maintain accurate records and documentation of takeoff quantities, calculations, and estimates. My effective communication skills also allow me to work collaboratively with clients to ensure that their needs are met and that they receive the best possible service. If you are looking for a skilled and experienced construction estimating and quantity surveying specialist, look no further! Contact me today to learn how I can help you save time and money on your next construction project.
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Building Material
    Cost Estimate
    Time & Cost Estimate
    Quantitative Analysis
    Bill of Quantity
    Bill of Materials
    Estimator
    Construction Estimating
    PlanSwift
    Quantity Surveying
    Bluebeam Revu
    Microsoft Excel
    Material Take-Off
    Construction Management
    On-Screen Takeoff
  • $43 hourly

    • 4.9/5
    • (230 jobs)
    Good map makes an excellent story. I bring expertise in GIS development, data visualization, and spatial data analysis to the table. I can help you to unlock valuable insights from your data, craft visually captivating maps and dashboards. Let's transform your geospatial data into actionable business intelligence together! I harness the power of ESRI software like ArcGIS Pro, ArcMap, and ArcGIS Online, alongside tools such as QGIS, Carto, and Google Earth to ensure comprehensive solutions. Skills: • GIS (ArcGIS, ArcGIS Online, QGIS, Carto, LasTools, Tau DEM, Google Earth) • Spatial data analysis, digital mapping, data visualization & illustration • Geospatial Data: mining, data entry, data scraping & cleaning • Web map Applications & map centered dashboards • 3D, Lidar, remote sensing, data processing, georeferencing • Geolocation, business intelligence, market analysis & research Key Services: • Real estate available parcel and demographic analysis, site selection, overlays • Map visualizations, illustrations • Interactive web maps, apps & dynamic dashboards • Vector and raster GIS data analysis and business intelligence • LiDAR point cloud processing, remote sensing & 3D mapping • Data mining, georeferencing, vectorization I have worked for the clients from wide range of industries: Real Estate, Telecommunications, Infrastructure, Solar, Targeted Marketing, Health, Nature Protection & Biodiversity, Forestry, water resource management, Geology/Mining. My focus is on fostering growth with my clients. I'm a fast learner who thrives on problem-solving and remains dedicated to helping achieve your goals. I view every project as an opportunity to build a collaborative partnership. Understanding your unique needs and objectives is foundational to delivering tailored solutions that exceed expectations. Let's connect!
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Data Analysis
    Analytics Dashboard
    Lidar
    GIS
    Georeferencing
    Raster Analysis
    Visualization
    Geocoding
    Graphic Design
    ArcGIS Online
    Spatial Analysis
    Remote Sensing
    QGIS
    ArcGIS
    Digital Mapping
  • $90 hourly

    • 5.0/5
    • (14 jobs)
    🩺 𝗣𝗵𝗗 & 𝗠𝗗. 𝟴+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝘀𝘁𝗮𝘁𝘀 𝗼𝗯𝘀𝗲𝘀𝘀𝗶𝗼𝗻. 📊 𝟭𝟬𝟬+ 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗺𝗲𝘁𝗶𝗰𝘂𝗹𝗼𝘂𝘀𝗹𝘆 𝗰𝗼𝗺𝗽𝗹𝗲𝘁𝗲𝗱. 𝗔𝗹𝘄𝗮𝘆𝘀 𝗼𝗻-𝘁𝗶𝗺𝗲. 𝗔𝘁𝘁𝗲𝗻𝘁𝗶𝗼𝗻 𝘁𝗼 𝗱𝗲𝘁𝗮𝗶𝗹 𝗮𝗻𝗱 𝗲𝘅𝗰𝗲𝗽𝘁𝗶𝗼𝗻𝗮𝗹 𝗾𝘂𝗮𝗹𝗶𝘁𝘆 𝗳𝗼𝗰𝘂𝘀. 𝗠𝘆 𝗴𝗲𝗻𝗶𝘂𝘀 𝘇𝗼𝗻𝗲 𝗶𝘀 𝗲𝘅𝘁𝗿𝗮𝗰𝘁𝗶𝗻𝗴 𝗶𝗻𝘀𝗶𝗴𝗵𝘁𝘀 𝗺𝘆 𝗰𝗼𝗺𝗽𝗲𝘁𝗶𝘁𝗼𝗿𝘀 𝗺𝗶𝘀𝘀. 🎯 Hi I’m Amer and I excel at supporting US 🇺🇸 and worldwide 🌎 based healthcare projects with all of their biostatistician, research and data analyst needs. I’m currently focused on working on long-term projects. ☑️ As a result of working together you can expect with the data provided or collected I can tell you exactly what was learned that was statistically significant or not. 📞 Please invite me to your project on Upwork if you would like to schedule a complimentary consultation call together. 📞 ❝ 𝘿𝙧 𝘼𝙢𝙚𝙧 𝙞𝙨 𝙖 𝙧𝙤𝙘𝙠𝙨𝙩𝙖𝙧 𝙙𝙖𝙩𝙖 𝙨𝙘𝙞𝙚𝙣𝙩𝙞𝙨𝙩 𝙖𝙣𝙙 𝙥𝙝𝙮𝙨𝙞𝙘𝙞𝙖𝙣 𝙗𝙞𝙤𝙨𝙩𝙖𝙩𝙞𝙘𝙞𝙖𝙣. 𝙄𝙩 𝙬𝙖𝙨 𝙖 𝙥𝙡𝙚𝙖𝙨𝙪𝙧𝙚 𝙬𝙤𝙧𝙠𝙞𝙣𝙜 𝙬𝙞𝙩𝙝 𝙮𝙤𝙪 𝘿𝙧 𝘼𝙢𝙚𝙧 𝙖𝙣𝙙 𝙬𝙚 𝙡𝙤𝙤𝙠 𝙛𝙤𝙧𝙬𝙖𝙧𝙙 𝙩𝙤 𝙘𝙤𝙣𝙩𝙞𝙣𝙪𝙞𝙣𝙜 𝙩𝙝𝙞𝙨 𝙧𝙚𝙡𝙖𝙩𝙞𝙤𝙣𝙨𝙝𝙞𝙥. 𝘿𝙚𝙡𝙞𝙫𝙚𝙧𝙚𝙙 𝙤𝙣 𝙩𝙞𝙢𝙚, 𝙨𝙘𝙤𝙥𝙚 𝙖𝙣𝙙 𝙫𝙚𝙧𝙮 𝙬𝙚𝙡𝙡 𝙘𝙤𝙢𝙢𝙪𝙣𝙞𝙘𝙖𝙩𝙚𝙙. 𝘼 𝙩𝙧𝙪𝙚 𝙚𝙭𝙥𝙚𝙧𝙩 𝙞𝙣 𝙝𝙞𝙨 𝙛𝙞𝙚𝙡𝙙. ❞
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    SAS
    Machine Learning
    Predictive Analytics
    Stata
    Data Analysis
    Clinical Trial
    Clinical Trial Management System
    Medical Editing
    Statistical Analysis
    Quantitative Analysis
    Research Methods
    Data Science
    R
    Apache Spark
    Python
  • $190 hourly

    • 5.0/5
    • (59 jobs)
    "Something that would have taken me 10+ hours to figure out, she did in two hours. She also provided a better course of action in place of my original plan. I will use Kimberly for all of my data projects. I highly recommend!" - Upwork client, 2020 I'm a Stanford-educated, Google-trained startup veteran with expertise in data analysis and user research. I help my clients tell stories with quantitative and qualitative research, allowing decision-makers make informed, data-driven choices. ### Areas of Expertise ### * Tableau * Google Data Studio * Google Sheets * Other data analysis (product analytics, open data sets, etc) * Survey writing * Survey input (SurveyMonkey, Typeform, Google Forms) * Survey analysis * User research * Combining qualitative and quantitative data ### Project Ideas ### == Data Exploration and Insights == If you have a data set like product usage data, customer feedback, finance information, customer retention, or anything else, I can help you uncover and communicate patterns. What are you wondering about your sales, marketing, or other datasets? == Writing Surveys and Analyzing Results == At Google, I was on the Survey consultancy team, where other researchers would bring their surveys to us to get feedback on how to word questions and analyze results. Over my career, I've analyzed millions of rows of quantitative feedback and thousands of open-ended responses. I have written and analyzed surveys to learn about product feedback, behavior patterns, job satisfaction, NPS, and more. == Dashboarding in Tableau, Data Studio, and more == I'm fluent in Tableau and Google Data Studio; I've also built dashboards in Looker, Salesforce, Metabase, Zendesk, and Google Sheets. If you have existing dashboards that need tweaking or overhauling, or you're looking to build something new, I can likely help you out. == Google Sheets Help == I'm a G Suite For Education Certified Trainer, meaning Google has certified me to teach others about Google Products like Spreadsheets. I find a lot of people need some help tweaking a spreadsheet, understanding a formula, making sheets talk to each other, or getting a particular view. If it can be solved in Google Spreadsheets, I can probably solve it. ### Brief Resume ### Education: Stanford University: B.S. in Symbolic Systems, 2009 Interdisciplinary program in human-computer interaction, psychology, and computer science. Work experience: Freelance consultant (working for technology startups in education, medicine, law) Since 2017 AltSchool, San Francisco CA: Product Success Lead 2013-2017 Google, Mountain View CA: User Experience Researcher 2010-2013 Aardvark, San Francisco CA: Social Search Quality Associate 2009-2010
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    SurveyMonkey
    Google Forms
    Quantitative Research
    Looker Studio
    Data Processing
    UX Research
    Data Visualization
    Tableau
    Data Analysis
    Quantitative Analysis
    Dashboard
    Survey Design
  • $150 hourly

    • 4.9/5
    • (82 jobs)
    *** Please note, I get a fair number of invitations to interview for jobs where the budget is very low, $50 or $25 and so on. While I would like to help, I just don't have the time for smaller or low-budget projects. I am looking for larger, multi-hour projects that are paid on an hourly basis (not flat fee) and have a minimum budget of $500. Thanks for understanding. *** I have over 30 years of experience in research, evaluation, statistics, and project management. I have advanced evaluation and statistical analytic skills and am fluent in Stata and SPSS and have been developing my analytic skills using R to where I am now comfortable working in this language as well.. I also use Mplus for latent variable modeling. I have designed and analyzed online surveys using Survey Monkey, Qualtrix, and REDCap. I have a PhD in clinical psychology and am a tenured Full Professor. I teach beginning and intermediate statistics to doctoral and master's level students. I also teach program evaluation and mental health policy, including substance abuse policy. For samples of my writing style, you are welcome to use the "Look Inside" feature on Amazon to review sections of my book: Substance abuse in America: A documentary and reference guide. I am also happy to provide samples of papers published in peer-reviewed journals. My writing and oral skills are excellent and I am comfortable both developing as well as conducting trainings, workshops, and presentations. I can also help with editing and writing technical or non-technical documents but I am highly selective about this kind of work. I will be happy to review sections in dissertations and theses, but I will not write these or other student papers because I believe this violates academic integrity. I also will not accept homework assignments for the same reason. Things I can help you do: 1) Translate data in Excel or ASCII format into a data set for analysis in just about any commonly used statistical program. 2) Run basic screening and descriptive statistics such as frequencies, measures of central tendency and dispersion, and distributional statistics to assess skew and kurtosis. 3) Run bivariate analyses such as t-tests, correlations, and chi-square tests as well as non-parametric procedures like Kruskal-Wallis. 4) Check missing values and conduct imputation-based analyses for missing data as needed. 5) Run more advanced analytical models including: factorial ANOVA, regression (OLS, binary, ordinal, and multinomial logistic as well as Poisson and negative binomial), GEE for repeated measures data, HLM, factor analysis, latent class analysis, SEM, and growth mixture models. 6) Review and advise on statistical analyses already run including interpretation of the findings. 7) Review, advise, and edit write-ups of statistical results and methods sections. 8) Prospective advice on study design, including sampling, measures, and data collection protocols. 9) Write and edit proposals. I am available to be a project evaluator and would be happy to help you write the evaluation section of your proposal as well as conduct the evaluation if funded. Or, if you just need a review and editing of your proposal, I can do that as well. 10) Develop surveys and survey questions. I have extensive experience developing surveys including online surveys using tools such as Survey Monkey, REDCap, and Qualtrics. If you are unsure whether I can help with your project, please do not hesitate to send me a message. I reply promptly and will give you an honest answer. I never take on work that I don't feel I can complete successfully and within your time frame or which might take me an inordinate amount of time.
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Regression Testing
    Survey Design
    Quantitative Research
    Multivariate Statistics
    Academic Research
    Quantitative Analysis
    Data Science
    Logistic Regression
    Statistics
    Stata
    R
    Data Analysis
  • $75 hourly

    • 5.0/5
    • (169 jobs)
    I have extensive experience conducting analyses in R, SPSS, AMOS, JASP, and jamovi. I also use R for visualizations, and can make R Shiny apps. I am experienced with descriptive statistics, t-tests, correlations, regression (linear, multiple, logistic, lasso, etc.), ANOVA, mediation, moderation, principal components analysis, factor analysis, structural equation modeling, discriminant analysis. I also can create a wide range of figures (e.g., box plots, bar charts, heatmaps, histograms, scatter plots, biplots, etc.), depending on what is required. My interests and previous experience include -omics research (e.g., metabolomics, lipidomics, etc.), psychology, cognitive neuroscience (including a lot of EEG data), and sports analytics. I have a Ph.D. in psychology, and currently work in statistics.
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Data Analysis
    IBM SPSS
    Mathematical Modeling
    Bayesian Statistics
    Academic Writing
    AP Style Writing
    R
    Statistics
    Scientific Research
    Analytics
    Data Visualization
    Statistical Analysis
    Quantitative Analysis
  • $200 hourly

    • 5.0/5
    • (14 jobs)
    Ph.D., Organizational Psychology. TEDx speaker. Talent, Organizational Development, and Survey specialist. I have 5+ years of experience working in talent and organizational development, though many of the skills I developed came from my 7 previous years in marketing. My goal is to leverage science and research to help you achieve your goals in a clear and applicable way. Within the past couple of years, I've worked on projects for Accenture within their career architecture, assessment, and recruiting teams. I have also worked on projects for McGill University, Yaamava (previously San Manuel) Casino, Denny's, Teachable, and Workboard, among others. I hold a Ph.D. and MA in Organizational Psychology from Claremont Graduate University and a BA in English and Consumer Psychology from the University of Pennsylvania. I am here to offer evidence-based solutions and help you achieve your goals. Some of my skills and work experiences include: • Conducting and analyzing survey data (using an array of survey software programs and analyzing data via R or Excel) • Interviewing and leading focus groups (and using qualitative thematic analysis to derive relevant and actionable themes) • Assessing/developing leadership and employees (engagement, wellbeing, strengths, burnout, etc.) • Spearheading program evaluations (using an array of methods, including but not limited to document/website review, surveys, interviews, observations) • Creating workshops • Drafting powerpoints • Writing reports • Speaking and educational engagements (keynotes, trainings, workshops, webinars, etc.) I am visually oriented and geared to make information easy to digest, so I will make sure that your solutions target your intended audience. About me: I initially pursued a career in marketing. I worked as a strategy consultant in healthcare, then pivoted into a tech innovation startup specializing in AI-driven, gamified e-commerce products. After 7 years of marketing in NYC, even in a director role, I realized that while I still loved business and psychology, and I very much loved my current job, I just wasn’t interested in selling products. Call me naive and idealistic, but I wanted to make an imprint on people's lives and help make the world a better place by creating a less stressed/burnt-out workforce. I envision a world where people thrive at their work, finding it engaging and energizing, and I want to help companies create the optimal space to make that a reality. To that end, I shifted my career trajectory and shifted towards organizational behavior. I love the consulting projects I've done and the clients I've worked with over these past few years. I completed my MA and PhD studying Positive Organizational Psychology. My research focuses on: • employee engagement • healthy work-life balance • burnout prevention • remote work • high-quality connections • virtual teams • leadership development • viewpoint diversity and more. I am also a TEDx speaker. My talk was titled, "Building Stronger Connections at Work". Feel free to visit my website: alyssabirnbaum.com
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Quantitative Research
    Psychometrics
    Qualitative Research
    Organizational Development
    Program Evaluation
    Human Resources Strategy
    Employee Engagement
    HR & Business Services
    Organizational Behavior
    Survey Design
    Quantitative Analysis
  • $40 hourly

    • 5.0/5
    • (16 jobs)
    As an expert in solving problems with data analysis and a scientific approach, I can create meaningful visualizations, perform statistical analyses, and correctly interpret and identify patterns, trends, and issues. Using R programming, I aim to make my solutions as customizable, reusable, and scalable as possible. I am a fast and versatile learner and thinker, who has conducted scientific research on different topics, authored articles in international journals and has a proven record of helping individuals and companies to answer real-world questions. I also can efficiently use my research and writing skills to gather information from trusted sources, make sense of it, and create clear summaries and reports. ----------------------------------------------------------------------------------------------------------------- Here are some of my skills: Statistics: Exploratory analyses, Regressions, ANOVA, MANOVA, Correlations, t-tests, PCA, Bootstrap, Permutation Tests, Correct interpretation of p-values... Visualizations: Scatterplots, Time-series, Dotplots, Boxplots, Heatmaps, Distributions, PCA biplots... Data: R programming, Data cleansing, Data wrangling, Detecting and dealing with outliers... Science: Scientific and Technical writing and reviewing, Literature review, Creating and testing hypothesis, Biology, Zoology, Bioacoustics...
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Data Science
    R
    Data Wrangling
    Statistical Analysis
    Data Visualization
    Data Analysis
    Academic Research
    Quantitative Analysis
    Data Cleaning
    Data Analytics
    ggplot2
    Academic Writing
    Biology
    Microsoft Excel
    Science
  • $40 hourly

    • 4.9/5
    • (288 jobs)
    With over six years of extensive experience and a top-rated plus freelancer badge, I am a full-time research and data analyst offering specialized independent services to individuals and companies alike. My expertise spans a broad spectrum of domains, including: 1. Research Methodology Design: I excel in crafting and justifying robust research methodologies tailored to the unique requirements of each project, ensuring methodological rigor and validity. It includes designing and validating surveys. 2. Survey Analysis: Utilizing advanced analytical techniques, I delve deep into survey data to extract valuable insights that drive informed decision-making for clients. 3. Statistical Reporting and Analysis: Proficient in multiple statistical software such as SPSS, AMOS, STATA, JASP, GRETL, E-Views, Power BI, R, MS Excel, Minitab, and more, I offer comprehensive statistical reporting and analysis services. 4. Qualitative Analysis: From thematic analysis of interview data to systematic reviews and content analysis, I leverage tools like NVIVO, Word Stat, QDA Miner, MAXQDA, Quirkos, and others to uncover insights from qualitative data. 5. Research Proposal Assistance: I provide invaluable support in crafting and refining research proposals, ensuring alignment with objectives and feasibility. 6. Multi-Domain Research: My expertise extends across various domains, including social sciences, marketing, finance, accounts, economics, and beyond, enabling me to tackle diverse research projects with ease. 7. Market and Business Research: I specialize in conducting comprehensive market and business research, delivering actionable insights to drive strategic decision-making. 8. Literature Reviews: I offer assistance with literature reviews, synthesizing existing research to provide a comprehensive understanding of the current state of knowledge in a given field. 9. Proofreading and Editing: With meticulous attention to detail, I offer proofreading and editing services for dissertations and research papers, ensuring clarity, coherence, and adherence to academic standards. In addition to my technical prowess, I possess excellent communication skills that enable me to collaborate effectively with diverse stakeholders and convey complex statistical concepts clearly and concisely. As a dedicated data analyst, I am passionate about leveraging data to address real-world challenges and positively impact the field of analytics and beyond. Whether you need assistance with research methodology, data analysis, or research proposal development, I am here to help. Feel free to contact me with any questions or project inquiries – I'm committed to delivering exceptional results for your endeavors.
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Internet Survey
    Logistic Regression
    Research Papers
    Qualitative Research
    Quantitative Research
    Hypothesis Testing
    Quantitative Analysis
    Stata
    Research Proposals
    EViews
    IBM SPSS
  • $25 hourly

    • 4.9/5
    • (128 jobs)
    I am Master in Finance graduate from London Business School, UK and obtained Bachelor Degree in Engineering from Sepuluh Nopember Institute of Technology, Indonesia. I have more than 10 years of working experience in the financial services Industry. My GRE Quant score is a perfect 170/170. I consider myself to have an expertise in quantitative analysis, investment analysis, finance, and data science.
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Finance & Accounting
    Quantitative Finance
    Financial Risk
    Quantitative Analysis
    Data Collection
    Data Curation
    Data Cleaning
    Python
  • $150 hourly

    • 5.0/5
    • (41 jobs)
    I am a full-stack data scientist and data engineer with a track record of over 2500 hours on Upwork, and I've accumulated countless more offline. My experience spans a wide range of technology stacks within the data science and data engineering domains. From developing machine learning models to optimizing data pipelines, I bring a wealth of expertise to the table. Front end: ui/ux, django, flask, streamlit Back end: micro service, rest api, database performance optimization CI/CD: jenkins, gitlab, Kubernetes, Docker Security: secure file transferring and oAuth etc Web scraping: Scrapy, Rotation Proxy, Selenium, Beautifulsoup Cloud: AWS, GCP, Azure Dashboarding: Tableau, PowerBI, Plotly, Dash Data Science: Python, R, SQL, NLP/NLG, AIGC, GPT-3, ChatGPT, HuggingFace, ML Predictive Modeling, Reinforcement Learning, Knowledge Graph Neo4j, Recommendation Engine, Deep Learning, Computer Vision, OCR, GAN, DeepFake, Stable Diffusion, Signal Processing, Voice Clone, Chatbot, Sports betting, Price Optimization, Time Series Analysis/Forecasting, Crypto, Solidity, Tokenomics, Research: Published around 100 papers on conferences and in peer-reviewed journals. --- Besides my Ph.D., I obtained several certificates from world-renowned institutions in data science, helping me form sound hypotheses and clear conclusions combined with a concise visualization. In addition, I have hands-on experience on many real-world data science projects for clients from all over the world in different industries. I have worked as a consultant for many start-ups on various projects and I have solid background on both research and development. --- Some of the feedback clients provided to me: ⭐⭐⭐⭐⭐ "Very efficient and timely with his work, Stijn put together a very comprehensive analysis of the data and charted it in a very orderly fashion. Obviously very good with more sophisticated stats and working with raw data, and great to work with." ⭐⭐⭐⭐⭐ "Stijn was very professional and extremely skilled. He went much beyond the instructions that were laid out and provided outstanding work. A real pleasure to work with. I honestly can't recommend him enough!" ⭐⭐⭐⭐⭐ Stijn worked on this project for 2 to 3 weeks, he is not only a highly skilled professional, but he is also someone that will make you smarter along the way. ⭐⭐⭐⭐⭐ Most freelancers I tried to work with for this project told me it was impossible to accomplish, it goes to show that Stijn was simply on a higher level. ⭐⭐⭐⭐⭐ "Stijn was super knowledgeable, he is a true professional. For this project he took the time to meet and brainstorm, see what the needs were and how we could go around some of the issue we may encounter. The final product is even better that what I could ask for, I also became a lot more educated and am looking forward to keep on working with Stijn! I have never met someone as skilled and knowledgable about the subject as Stijn."
    vsuc_fltilesrefresh_TrophyIcon Quantitative Researchers
    Business Analysis
    Data Mining
    Data Visualization
    Quantitative Analysis
    Data Analysis
    Statistics
    Data Scraping
    Statistical Analysis
    Data Extraction
    Tableau
    Machine Learning Model
    Machine Learning
    Data Science
    Python
    R
  • $100 hourly

    • 5.0/5
    • (297 jobs)
    I am a Ph.D. candidate in Behavioral Psychology with an expertise in quantitative and qualitative data analysis. I have over a decade of experience analyzing academic and business data, writing full-length and key takeaway reports, and visualizing massive amounts of data to tell a compelling story. 🎓 Dedicated to undertaking research in the field of social sciences, especially in the realm of psychology, to help students and researchers fulfill their aspirations and make the world a better place. I have helped students graduate with flying colors, researchers publish their work, and doctoral students fulfill the requirements of their thesis and secure a place as professors in esteemed U.S. universities. ✍️ Offering academic writing and editing services exclusively for psychology students, including essays, research reports, and dissertations. You can rely on my perfectionistic nature to deliver ready-for-submission work that meets the highest academic standards and adheres to the latest edition of APA style. 😎 Proud of establishing ongoing collaborations with global enterprises and Fortune 500 companies in consumer insights, people analytics, and social listening. Indicative list of companies: Novartis, TEVA, Daikin, Mercedes-Benz, Pipedrive, CEDIA, Procom. 👑 A sneak peek into my feedback hall of fame: "𝘐𝘰𝘢𝘯𝘯𝘢 𝘪𝘴 𝘢𝘮𝘰𝘯𝘨 𝘵𝘩𝘦 𝘳𝘢𝘳𝘦𝘴𝘵 𝘧𝘳𝘦𝘦𝘭𝘢𝘯𝘤𝘦𝘳𝘴 𝘺𝘰𝘶 𝘸𝘪𝘭𝘭 𝘦𝘷𝘦𝘳 𝘮𝘦𝘦𝘵 𝘰𝘯 𝘵𝘩𝘪𝘴 𝘱𝘭𝘢𝘵𝘧𝘰𝘳𝘮. 𝘉𝘦𝘴𝘪𝘥𝘦𝘴 𝘣𝘦𝘪𝘯𝘨 𝘢𝘯 𝘦𝘹𝘱𝘦𝘳𝘵 𝘪𝘯 𝘵𝘩𝘪𝘴 𝘧𝘪𝘦𝘭𝘥, 𝘸𝘪𝘵𝘩 𝘱𝘳𝘰𝘧𝘰𝘶𝘯𝘥 𝘬𝘯𝘰𝘸𝘭𝘦𝘥𝘨𝘦, 𝘴𝘩𝘦 𝘱𝘰𝘴𝘴𝘦𝘴𝘴𝘦𝘴 𝘢 𝘲𝘶𝘢𝘭𝘪𝘵𝘺 𝘵𝘩𝘢𝘵 𝘪𝘴 𝘦𝘹𝘵𝘳𝘦𝘮𝘦𝘭𝘺 𝘥𝘪𝘧𝘧𝘪𝘤𝘶𝘭𝘵 𝘵𝘰 𝘧𝘪𝘯𝘥 𝘵𝘰𝘥𝘢𝘺 - 𝘵𝘳𝘶𝘦 𝘤𝘢𝘳𝘦. 𝘋𝘶𝘳𝘪𝘯𝘨 𝘰𝘶𝘳 𝘸𝘰𝘳𝘬, 𝘴𝘩𝘦 𝘥𝘪𝘥 𝘯𝘰𝘵 𝘫𝘶𝘴𝘵 𝘨𝘪𝘷𝘦 𝘮𝘦 𝘩𝘰𝘭𝘪𝘴𝘵𝘪𝘤 𝘢𝘯𝘥 𝘱𝘶𝘻𝘻𝘭𝘪𝘯𝘨 𝘴𝘦𝘳𝘷𝘪𝘤𝘦 𝘣𝘶𝘵 𝘳𝘢𝘵𝘩𝘦𝘳 𝘮𝘢𝘥𝘦 𝘴𝘶𝘳𝘦 𝘵𝘰 𝘱𝘦𝘳𝘴𝘰𝘯𝘢𝘭𝘭𝘺 𝘦𝘯𝘨𝘢𝘨𝘦 𝘸𝘪𝘵𝘩 𝘵𝘩𝘦 𝘱𝘳𝘰𝘫𝘦𝘤𝘵 𝘢𝘴 𝘮𝘶𝘤𝘩 𝘢𝘴 𝘱𝘰𝘴𝘴𝘪𝘣𝘭𝘦 𝘢𝘯𝘥 𝘱𝘳𝘰𝘷𝘪𝘥𝘦 𝘵𝘩𝘦 𝘣𝘦𝘴𝘵 𝘢𝘯𝘴𝘸𝘦𝘳𝘴 𝘵𝘰 𝘮𝘺 𝘲𝘶𝘦𝘴𝘵𝘪𝘰𝘯𝘴 𝘢𝘯𝘥 𝘤𝘰𝘯𝘤𝘦𝘳𝘯𝘴, 𝘸𝘪𝘵𝘩𝘰𝘶𝘵 𝘦𝘹𝘱𝘦𝘤𝘵𝘪𝘯𝘨 𝘢𝘯𝘺𝘵𝘩𝘪𝘯𝘨 𝘪𝘯 𝘳𝘦𝘵𝘶𝘳𝘯. 𝘍𝘶𝘳𝘵𝘩𝘦𝘳𝘮𝘰𝘳𝘦, 𝘩𝘦𝘳 𝘳𝘦𝘮𝘢𝘳𝘬𝘢𝘣𝘭𝘦 𝘥𝘦𝘥𝘪𝘤𝘢𝘵𝘪𝘰𝘯 𝘵𝘰 𝘢𝘭𝘸𝘢𝘺𝘴 𝘣𝘦𝘪𝘯𝘨 𝘳𝘦𝘴𝘱𝘰𝘯𝘴𝘪𝘷𝘦 𝘢𝘯𝘥 𝘢𝘷𝘢𝘪𝘭𝘢𝘣𝘭𝘦 𝘦𝘹𝘤𝘦𝘦𝘥𝘦𝘥 𝘮𝘺 𝘦𝘹𝘱𝘦𝘤𝘵𝘢𝘵𝘪𝘰𝘯𝘴 𝘢𝘯𝘥 𝘤𝘦𝘳𝘵𝘢𝘪𝘯𝘭𝘺 𝘴𝘦𝘵 𝘩𝘦𝘳 𝘢𝘱𝘢𝘳𝘵. 𝘐𝘧 𝘢 𝘱𝘰𝘵𝘦𝘯𝘵𝘪𝘢𝘭 𝘤𝘭𝘪𝘦𝘯𝘵 𝘪𝘴 𝘳𝘦𝘢𝘥𝘪𝘯𝘨 𝘵𝘩𝘪𝘴, 𝘐 𝘤𝘢𝘯 𝘮𝘰𝘴𝘵 𝘥𝘦𝘧𝘪𝘯𝘪𝘵𝘦𝘭𝘺 𝘨𝘶𝘢𝘳𝘢𝘯𝘵𝘦𝘦 𝘴𝘩𝘦 𝘪𝘴 𝘵𝘩𝘦 𝘳𝘪𝘨𝘩𝘵 𝘱𝘦𝘳𝘴𝘰𝘯 𝘧𝘰𝘳 𝘺𝘰𝘶. 𝘛𝘩𝘢𝘯𝘬 𝘺𝘰𝘶 𝘢𝘨𝘢𝘪𝘯, 𝘐𝘰𝘢𝘯𝘯𝘢, 𝘧𝘰𝘳 𝘴𝘶𝘤𝘩 𝘢𝘯 𝘢𝘮𝘢𝘻𝘪𝘯𝘨 𝘢𝘯𝘥 𝘨𝘦𝘯𝘶𝘪𝘯𝘦 𝘴𝘦𝘳𝘷𝘪𝘤𝘦." "𝘐 𝘢𝘮 𝘥𝘦𝘭𝘪𝘨𝘩𝘵𝘦𝘥 𝘵𝘰 𝘱𝘳𝘰𝘷𝘪𝘥𝘦 𝘢𝘯 𝘰𝘷𝘦𝘳𝘸𝘩𝘦𝘭𝘮𝘪𝘯𝘨𝘭𝘺 𝘱𝘰𝘴𝘪𝘵𝘪𝘷𝘦 𝘳𝘦𝘤𝘰𝘮𝘮𝘦𝘯𝘥𝘢𝘵𝘪𝘰𝘯 𝘧𝘰𝘳 𝘐𝘰𝘢𝘯𝘯𝘢, 𝘸𝘩𝘰 𝘳𝘦𝘤𝘦𝘯𝘵𝘭𝘺 𝘤𝘰𝘯𝘵𝘳𝘪𝘣𝘶𝘵𝘦𝘥 𝘩𝘦𝘳 𝘦𝘹𝘤𝘦𝘱𝘵𝘪𝘰𝘯𝘢𝘭 𝘴𝘬𝘪𝘭𝘭𝘴 𝘵𝘰 𝘰𝘶𝘳 𝘱𝘳𝘰𝘫𝘦𝘤𝘵 𝘣𝘺 𝘤𝘰𝘯𝘥𝘶𝘤𝘵𝘪𝘯𝘨 𝘢 𝘵𝘩𝘰𝘳𝘰𝘶𝘨𝘩 𝘴𝘵𝘢𝘵𝘪𝘴𝘵𝘪𝘤𝘢𝘭 𝘢𝘯𝘢𝘭𝘺𝘴𝘪𝘴. 𝘐𝘰𝘢𝘯𝘯𝘢'𝘴 𝘸𝘰𝘳𝘬 𝘧𝘢𝘳 𝘦𝘹𝘤𝘦𝘦𝘥𝘦𝘥 𝘰𝘶𝘳 𝘦𝘹𝘱𝘦𝘤𝘵𝘢𝘵𝘪𝘰𝘯𝘴, 𝘢𝘯𝘥 𝘩𝘦𝘳 𝘥𝘦𝘥𝘪𝘤𝘢𝘵𝘪𝘰𝘯 𝘵𝘰 𝘱𝘳𝘦𝘤𝘪𝘴𝘪𝘰𝘯 𝘢𝘯𝘥 𝘦𝘹𝘤𝘦𝘭𝘭𝘦𝘯𝘤𝘦 𝘸𝘢𝘴 𝘵𝘳𝘶𝘭𝘺 𝘤𝘰𝘮𝘮𝘦𝘯𝘥𝘢𝘣𝘭𝘦. " "𝘛𝘩𝘪𝘴'𝘴 𝘮𝘺 𝘴𝘦𝘤𝘰𝘯𝘥 𝘵𝘪𝘮𝘦 𝘸𝘰𝘳𝘬𝘪𝘯𝘨 𝘸𝘪𝘵𝘩 𝘐𝘰𝘢𝘯𝘯𝘢. 𝘐𝘰𝘢𝘯𝘯𝘢'𝘴 𝘱𝘦𝘳𝘧𝘦𝘤𝘵𝘪𝘰𝘯𝘪𝘴𝘮 𝘮𝘢𝘬𝘦𝘴 𝘩𝘦𝘳 𝘵𝘳𝘶𝘭𝘺 𝘦𝘹𝘤𝘦𝘱𝘵𝘪𝘰𝘯𝘢𝘭. 𝘚𝘩𝘦 𝘤𝘰𝘯𝘴𝘪𝘴𝘵𝘦𝘯𝘵𝘭𝘺 𝘥𝘦𝘭𝘪𝘷𝘦𝘳𝘦𝘥 𝘩𝘪𝘨𝘩-𝘲𝘶𝘢𝘭𝘪𝘵𝘺 𝘸𝘰𝘳𝘬. 𝘐𝘰𝘢𝘯𝘯𝘢 𝘪𝘴 𝘦𝘹𝘵𝘳𝘦𝘮𝘦𝘭𝘺 𝘱𝘳𝘰𝘧𝘦𝘴𝘴𝘪𝘰𝘯𝘢𝘭. 𝘚𝘩𝘦 𝘸𝘢𝘴 𝘷𝘦𝘳𝘺 𝘳𝘦𝘴𝘱𝘰𝘯𝘴𝘪𝘷𝘦, 𝘮𝘦𝘵 𝘢𝘭𝘭 𝘥𝘦𝘢𝘥𝘭𝘪𝘯𝘦𝘴, 𝘢𝘯𝘥 𝘸𝘦𝘯𝘵 𝘵𝘩𝘦 𝘦𝘹𝘵𝘳𝘢 𝘮𝘪𝘭𝘦 𝘵𝘰 𝘮𝘢𝘬𝘦 𝘴𝘶𝘳𝘦 𝘮𝘺 𝘱𝘳𝘰𝘫𝘦𝘤𝘵 𝘸𝘢𝘴 𝘦𝘷𝘦𝘯 𝘣𝘦𝘵𝘵𝘦𝘳 𝘵𝘩𝘢𝘯 𝘐 𝘦𝘹𝘱𝘦𝘤𝘵𝘦𝘥. 𝘐'𝘮 𝘴𝘰 𝘨𝘳𝘢𝘵𝘦𝘧𝘶𝘭 𝘧𝘰𝘳 𝘐𝘰𝘢𝘯𝘯𝘢'𝘴 𝘩𝘦𝘭𝘱. 𝘚𝘩𝘦 𝘸𝘢𝘴 𝘥𝘦𝘥𝘪𝘤𝘢𝘵𝘦𝘥, 𝘥𝘦𝘵𝘢𝘪𝘭-𝘰𝘳𝘪𝘦𝘯𝘵𝘦𝘥 𝘢𝘯𝘥 𝘬𝘯𝘰𝘸𝘭𝘦𝘥𝘨𝘦𝘢𝘣𝘭𝘦, 𝘸𝘩𝘪𝘤𝘩 𝘮𝘢𝘥𝘦 𝘵𝘩𝘦 𝘱𝘳𝘰𝘤𝘦𝘴𝘴 𝘴𝘮𝘰𝘰𝘵𝘩 𝘢𝘯𝘥 𝘴𝘵𝘳𝘦𝘴𝘴-𝘧𝘳𝘦𝘦. 𝘐 𝘩𝘪𝘨𝘩𝘭𝘺 𝘳𝘦𝘤𝘰𝘮𝘮𝘦𝘯𝘥 𝘐𝘰𝘢𝘯𝘯𝘢 𝘧𝘰𝘳 𝘢𝘯𝘺𝘰𝘯𝘦 𝘯𝘦𝘦𝘥𝘪𝘯𝘨 𝘢 𝘧𝘳𝘦𝘦𝘭𝘢𝘯𝘤𝘦 𝘱𝘳𝘰𝘧𝘦𝘴𝘴𝘪𝘰𝘯𝘢𝘭 𝘸𝘩𝘰 𝘨𝘦𝘯𝘶𝘪𝘯𝘦𝘭𝘺 𝘤𝘢𝘳𝘦𝘴 𝘢𝘣𝘰𝘶𝘵 𝘥𝘦𝘭𝘪𝘷𝘦𝘳𝘪𝘯𝘨 𝘦𝘹𝘤𝘦𝘭𝘭𝘦𝘯𝘵 𝘳𝘦𝘴𝘶𝘭𝘵𝘴."
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  • $80 hourly

    • 4.9/5
    • (93 jobs)
    I have a PhD in Psychology and I have over 13 years of experience manipulating large data sets and building statistical models. I have strong experience in using R for complex data analysis involving clustering, classification, latent-class analysis, growth curve modeling, propensity score analysis, regression discontinuity analysis and predictive models. I also have intermediate level of expertise in Python and SQL. I have strong expertise in SPSS, LISREL(for SEM) and MLwIN (For multi-level modeling). Moreover, I have experience visualizing/presenting data using various softwares including Tableau. I have published a number of articles in international peer reviewed journals and have experience designing different types of studies. I'm available for any work involving data: cleaning, structuring, mining, visualizing, analyzing and reporting. Moreover, I have over 11 years of experience mentoring graduate students through the dissertation process. Thus, I enjoy doing dissertation consulting.
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