The Best R Developers & Programmers For Hire In Brazil

Check out R Developers & Programmers in Brazil with the skills you need for your next job.

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$80 hourly
- 5.0/5
- (74 jobs)
𝗦𝗛𝗢𝗥𝗧 𝗕𝗜𝗢 I am an economist with a wealth of experience in consulting, spanning over 15 years in the field of Economics and Financial Analysis. I combine technical expertise in quantitative tools and and consultant's eye and capacity for communicating findings to non-technical audiences. My expertise has been leveraged by a diverse range of clients, including multilateral organizations, public and private corporations, as well as state-owned enterprises. I am also an experienced tutor in everything related to Economics, having helped dozens of students from several countries. 𝗖𝗢𝗡𝗦𝗨𝗟𝗧𝗜𝗡𝗚 𝗖𝗔𝗥𝗘𝗘𝗥 𝗛𝗜𝗚𝗛𝗟𝗜𝗚𝗛𝗧𝗦 ✅ Financial and economic modeling, coupled with the valuation of investment projects, accounting for cumulative capital and operational expenditures exceeding $4.5 billion. ✅ Viability analysis of investment projects. ✅ Proficiency in conducting economic analyses of privatization endeavors and facilitating the development of public-private partnerships. ✅ A proven track record in various forecasting methodologies. ✅ Robust demand estimation and market sizing skills. ✅ A history of offering uniquely-tailored solutions to the clients needs. ⭐⭐⭐⭐⭐ Top Rated on Upwork 𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗬 𝗘𝗫𝗣𝗘𝗥𝗧𝗜𝗦𝗘 🎯 Retail & Wholesale 🎯 Tech 🎯 Finance 🎯 Water & Sanitation 🎯 Healthcare 🎯 Transportation & Logistics 🎯 Real Estate 🎯 Business Services 🎯 Arts 🎯Construction Supplies 🎯Street Lighting 🎯Education 𝗪𝗛𝗬 𝗬𝗢𝗨 𝗦𝗛𝗢𝗨𝗟𝗗 𝗛𝗜𝗥𝗘 𝗠𝗘 𝗜𝗡𝗦𝗧𝗘𝗔𝗗 𝗢𝗙 𝗔𝗡𝗢𝗧𝗛𝗘𝗥 𝗙𝗥𝗘𝗘𝗟𝗔𝗡𝗖𝗘𝗥 🏆 Client Feedback: I focus on providing value to clients by building relationships and catering to THEIR needs. This is how I routinely get stellar feedback! 🏆 Over-Delivery: My strategy is NOT to over-promise just to get a contract. Instead I focus on over-delivering. This way I give more than I have promised, not less! 🏆 Responsiveness: I work hard and communicate frequently with my clients. This is essential to keeping everyone on the same page and make sure they are satisfied. 🏆 Reliability: I make sure clients can count on me to always give my best. This lets me face some of the toughest challenges in my area of expertise and attain solid, often unexpected results! Feel free to explore some of my past projects in my portfolio. If you'd like to explore how we can collaborate to address your unique needs, please don't hesitate to get in touch. Your challenges are invitations for us to team up and innovate.

R
Social Impact Assessment
Valuation
Financial Analysis & Valuation
Economic Analysis
Financial Modeling
Microsoft Excel
Forecasting
Economics
Causal Inference
Data Analysis
Econometrics
Stata
Linear Regression
$35 hourly
- 5.0/5
- (9 jobs)
I'm a recently converted digital nomad who finally mustered the courage to quit his job and start traveling the world. Now, I'm applying my 4 years of experience as a Data Analyst at Amazon to help businesses thrive in a world of information overload by building reports/dashboards, automating repetitive tasks and analyzing confusing data to drive business decisions.

R
SQL Programming
JavaScript
Python Script
AWS Amplify
Data Science
Tableau
Data Analysis
Python
$36 hourly
- 4.9/5
- (21 jobs)
all my career has been built around Finance, Economics and Commercial strategy topics and i accompanied the technicals evolutions of these fields through a steady relationships with academic field to update my knowledges. Strong and various experiences through differents economic sectors ( FMCG , Telecommunication , Automotive ) constitute a geniune asset to have a vision at 360 degrés and treat differents topics and requests. am very comfortable with excel , python , R and SQL programming with is very helpful to produce the best financial and economic analysis Dashboard and constitute a strong decision maker tool I am also pretty good to supply and synthetise differents presentations and reporting. Automisation is also very important to ease the different flow today so i worked a lot on these differents topic and i can supply a strong knowledge on this. Alaise en Français en anglais et même en arabe je peux vous assurer un support de qualité pour l'ensemble des problématiques finance , comptabilité , business analyse et data science

R
Business Analysis
Macro Programming
Modeling
Cash Flow Modeling
Excel Formula
Statistical Computing
Economic Analysis
Translation
Finance & Accounting
Finance
Econometrics
Data Science
Python
Data Analysis
$30 hourly
- 5.0/5
- (14 jobs)
Data science & analytics professional with over 14 years of experience in report building and analytics using Excel. MBA in Data Science & Analytics at USP/ESALQ and hold an MBA in Project Management and a Bachelor's degree in Civil Engineering. With 4+ years of experience in Python, Power BI, and SQL. I am highly organized and have strong communication, problem-solving, leadership, and project management skills. I am eager to bring my analytical and technical skills to your organization. Let's connect to discuss opportunities for collaboration.

R
Microsoft Power BI
Data Analysis
Report
Spreadsheet Software
Accuracy Verification
Web Scraping
Beautiful Soup
PostgreSQL
SQL
pandas
Microsoft Excel
NumPy
Machine Learning
Python
$100 hourly
- 5.0/5
- (46 jobs)
I am an experienced media buyer with a strong background in data science (8+ years as a data scientist/data engineer). My expertise lies in harnessing the power of Facebook Ads/Google Ads to drive exceptional results for businesses. With a diverse range of experience spanning freelancing, corporate environments, startups, and academic research, I bring a unique perspective to every project. My proficiency in numerical and statistical analysis, combined with my skills in A/B testing and knowledge of both white hat and black hat marketing, positions me as a valuable asset to optimize your advertising campaigns. 💻 Work Overview ✅ Former Numerical and statistical analysis specialist; ✅ Diverse experience: freelancing, corporate, startups, academic research; ✅ Extensive knowledge of Paid Traffic/Campaign management; ✅ Skilled in A/B testing for campaign optimization; ✅ Proficient in white hat (Real Estate, E-commerce, SaaS) and black hat (Adult niches, Casino/Gambling, Dating) techniques; ✅ Ability to uncover root causes through correlation curves and use them to optimize campaigns ✅ Strong presentation skills: dashboards, dynamic PowerPoint presentations — Result from my experience as a data analyst, where I had to deal with the Executive Board of all companies. ✅ Award-winning mathematician and project builder — Which makes me different from any marketer ✅ Passionate about helping businesses grow and succeed 💡 Skills and Expertise: ✅ Sales Copywriting ✅ Funnel Optimization ✅ Google Ads (Search and Display) ✅ Facebook Ads ✅ Bing Ads ✅ Apple Search Ads ✅ E-mail Marketing ✅ CRM ✅ Landing Page Optimization ✅ Tracking/Attribution tools (Voluum, Redtrack, Branch, AppsFlyer) ✅ Numerical Data Analysis (Statistics, Numerical Methods, Interpolations, Forecasting) ✅ Analytics (Excel, Python, R, RShiny, VBA Programming, Power BI, etc) 📖 Education Advanced Paid Traffic — CXL Institute E-commerce optimization — CXL Institute Copyhackers 100% completion course Landing Page Optimization — CXL Institute Bachelor's in Engineering Senior Data Scientist (SDS™, DASCA)

R
Visual Basic
Media Buying
Quantitative Analysis
Statics
Automation
Paid Social
Apple Search Ads
Online Gambling Website
SEO Audit
SEO Performance
Google Ads
Digital Marketing
Affiliate Marketing
Macro Programming
Microsoft Power BI
Facebook Ads Manager
Data Analysis
R Shiny
$35 hourly
- 5.0/5
- (6 jobs)
Power BI | R Studio | Figma Solving problems and bringing smart solutions through data analysis and visualization.

R
Portuguese
Spanish
English
Data Collection
Data Visualization
Data Extraction
Figma
Microsoft Power BI Data Visualization
$40 hourly
- 5.0/5
- (19 jobs)
B.S. in Biomedical Sciences and M.S. in Computational Biology at the University of São Paulo, Brazil. PhD candidate working with semantic modelling of biomedical knowledge. I mostly have experience with Wikidata, writing SPARQL queries and modelling in knowledge graphs and ontologies. The jobs I might be able to help the most include: - Writing and optimizing SPARQL queries (focus on biomedical sciences/Wikidata) - Converting API/JSON data into semantic standards (RDF) according to custom schemas - Setting up SPARQL endpoints - Any kind of modelling/extraction/processing of data on Wikidata - Any kind of job in the intersection of biosciences and the semantic web

R
RDF
Wiki
Knowledge Graph
Python
R Shiny
SPARQL
Data Scraping
Bioinformatics
$40 hourly
- 5.0/5
- (6 jobs)
- Programming: I master important languages to manipulate data to insert in machine learning model: Python, R, Javascript, and Java - Database: I have strong knowledge in database development, SQL and NoSql like MySql, Oracle, Postgre, BigQuery and MongoDb - Data Visualization: I use to work with data studio and matplotlib to show the results of each analysis - Machine Learning: I know how to develop model using tensorflow, weka, R or scikit learn and apply them to real business case - Cloud Computing: I can deploy model very quickly using cloud like AWS, Google Cloud or Heroku.

R
Golang
Robotic Process Automation
Node.js
UiPath
SAP
SQL
Looker Studio
Python
Java
JavaScript
$45 hourly
- 4.9/5
- (13 jobs)
Nice to meet you, my name is Bernardo and I'm a developer here in Brazil. For the past 6 years, I've been working with technology. My main skills are: - Python (Top Skill) - MQL5 (Top Skill) - Machine Learning (Top Skill) - SQL Server and MySQL - HTML (XML and JSON) - C++ I love challenging projects, especially in finance and investments. Some of my portfolio: 1. Algotrading Bot using Machine Learning models Briefing: The software was a ML model that could track all stocks traded on the market and predict when a big player was buying and selling a determined stock. Once it tracks a big player position, it automatically invested in that stock to flow with the price variation. 2. Software for predicting and betting in US Sports Briefing: Using Logistic Regression Models, the software could predict matches outcomes and evaluate if the Risk x Return of that game was good enough to bet on. If it tracked a good game, it will automatically bet on. 3. Multi-strategy bot for Metatrader5 - Technical Analysis Briefing: A White Box bot that compounds all technical indicators (and some more) of MetaTrader for multi-strategies variations. More than 1,000,000 possible combinations of strategies give the client a big opportunity to test many of his/her ideas of investments. I'm looking for a good partner that I could work with and help to develop his/her ideas! Contact me and let's take a virtual coffee to chat! Thank you, Bernardo

R
API
MetaTrader 5
Artificial Intelligence
MetaTrader 4
Cryptocurrency
Forex Trading
Betfair
Machine Learning
Python
$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...

R
Data Science
Data Wrangling
Statistical Analysis
Data Visualization
Data Analysis
Academic Research
Quantitative Analysis
Data Cleaning
Data Analytics
ggplot2
Academic Writing
Biology
Microsoft Excel
Science
$35 hourly
- 5.0/5
- (2 jobs)
My goal is to help companies in market and data analysis. As a Ph.D. in economics, I've been working with data science for some years. My focus is to use the most advanced tools the data science world can provide and apply these tools to solve business problems. My personal goal is to bring a little bit of economic theory to data analytics to understand what should and should not be done when trying to achieve a goal through data assessment. Drawing useful insights from data for me is more about market comprehension than it is about having ready-to-use codes in your mind. Let's do it with purpose!

R
Data Analytics & Visualization Software
Economic Analysis
Econometrics
ArcGIS
QGIS
Research & Strategy
Data Modeling
Data Science
Statistical Analysis
Microsoft Power BI
Stata
Data Analysis
Python
$40 hourly
- 4.8/5
- (1 job)
I have over 15 years of IT expertise with a significant experience on Siebel CRM. I have seamlessly transitioned into data science, dedicating the last three years to empowering financial markets through data-driven insights. What I Bring to the Table: Analytical Excellence: My extensive background is a testament to my strong analytical thinking, providing a solid foundation for data science endeavors. Data Science Specialization: I leverage the power of R language in RStudio, creating meaningful visualizations with ggplot2. My expertise extends to data cleaning and processing, exploratory data analysis, data mining and machine learning, where I've successfully developed gradient boost machines for advanced analytics. Statistics Implementation: I have applied hypothesis testing algorithm in R and Python implementing econometric theories such as Engle & Granger cointegration. IT Proficiency: Beyond data science, I maintain a robust skill set in C++, utilizing it to keep a trading system operational. These several skills uniquely position me to blend data science methodologies with practical IT solutions. Why Choose Me: Hiring me means gaining a seasoned professional who seamlessly blends years of IT experience with a passion for data science. I offer not only technical expertise but also a strategic mindset to elevate your business through insightful data analysis. Let's collaborate to transform your data into a valuable asset, driving strategic decisions and achieving your business goals. Thank you.

R
Econometrics
Quantitative Research
Data Science
Data Analysis
Python
$40 hourly
- 5.0/5
- (2 jobs)
I'm starting a PhD in Economics at the University of Gothenburg, Sweden, in August. Right now, I've just finished my masters in EPGE/FGV in Rio de Janeiro, Brazil, and I'm looking for RA positions.

R
LaTeX
HTML
Microeconomics
Microsoft Office
Microsoft Visio
MATLAB
Economics
C
C#
CSS
Finance
Python
Stata
Microsoft Excel
$33 hourly
- 5.0/5
- (4 jobs)
With a background in finance and marketing, I worked with data in the tech industry for the past 4 years with experience in analytics, credit modeling and recommendation systems. I love data and statistics and creating well-crafted products using them.

R
Databricks MLflow
PySpark
Metabase
Python Scikit-Learn
NumPy
pandas
PyTorch
Git
GitHub
Tableau
Looker
Python
SQL
$50 hourly
- 5.0/5
- (2 jobs)
Hello! I'm an experienced researcher with a diverse skill set ranging from neuroscience, chemistry, to artificial intelligence. My proven track record includes leading research projects, developing a diagnostic device, and translating complex data into insightful results. Why work with me? 🧠 Strong interdisciplinary background equips me to understand and solve problems from multiple angles. 💡 Real-world experience translating academic concepts into practical applications. 👥 Exceptional interpersonal skills for team projects or collaborations. 💼 Ability to lead and manage teams, always striving for peak performance. A summary of my skills: - Proficient in R and Python programming, able to develop, troubleshoot and optimize code for diverse applications. - Strong expertise in scientific computing, using data-driven methods to solve complex problems and generate insightful solutions. - Deep understanding of data analysis techniques, with the ability to interpret and present complex data in a clear, accessible way. - Experienced in the application of machine learning and deep learning techniques to real-world challenges, including predictive modeling and data classification. - Adept at translating data-driven insights into actionable strategies and solutions.

R
Teaching
Computer Vision
Natural Language Processing
Data Analytics & Visualization Software
Data Analytics
Data Analysis
Artificial Intelligence
Deep Learning
Machine Learning
Statistical Programming
Statistical Analysis
Python
Academic Research
Research Methods
$45 hourly
- 5.0/5
- (3 jobs)
7 year data experienced professional at finance, health, tech, consulting and banking experience. A challenge and problem solving driven professional and have always had as a goal the fusion of data technology and capital markets. Pursuing to contribute and grow within a fast-paced environment on innovative projects. Currently Senior Data Platform Engineer and finishing master’s degree in Computer Science at UFMG. Projects: Throughout my career, I've been involved in many exciting projects, such as developing GAN and binary investment robots for investment algorithms, reconciling financial data for large companies, and statistically analyzing stock trading volume using Google Trends. My projects demonstrate my ability to combine AI models, quantitative analytics and financial expertise to gain data-driven insights. Skills: I have diverse skills in programming languages such as Python, Javascript, R, C/C++, SQL, Typescript, Scala and VBA. I have hands-on experience with various databases such as SQL Server, PostgreSQL, DB2, MySQL, MongoDB, Google Big Query, Oracle, AWS and Microsoft SSIS. In addition, I have knowledge in data visualization tools, such as Shiny, Matplot, Tableau, PowerBI and Google DataStudio. Languages: I am a native Portuguese speaker and proficient in English and Spanish, which enables efficient communication with international teams.

R
Node.js
React
JavaScript
Amazon Redshift
AWS Lambda
Data Science
Data Engineering
RESTful API
Finance & Accounting
Statistics
Business Plan
Oracle Cloud
SQL
Python
$35 hourly
- 5.0/5
- (2 jobs)
Specializing in Data Science and AI/ML, using tools like AWS SageMaker, Google AI, and Azure ML. Creating machine learning models with Python, R, Julia, TensorFlow, PyTorch, and Scikit-learn. Expertise in data integration with Kafka, Airflow, and NiFi. Proficient in Large Language Models (LLM), NLP with transformers and Spacy, and fine-tuning with Hugging Face. Developing AI assistants with Vapi.ai, Retell, and Bland.ai. Enhancing marketing with HubSpot and Marketo, managing social media with Hootsuite and Buffer. Skilled in CRM systems like GHL, Salesforce, and HubSpot, streamlining tasks with Make.com and Zapier. Creating AI art using Midjourney, Stable Diffusion, and Adobe Creative Suite. Utilizing cloud services such as AWS, Google Cloud, and Azure for scalable solutions. Ensuring reliable software development through experience with APIs and testing, driving business growth through innovation. Skilled in KPI analysis to measure and optimize performance metrics effectively. Detailed Tech Stacks 📚Programming Languages Python, R, Julia, Java, C++, C#, Swift, JavaScript, TypeScript, Ruby, PHP 🔍Data Science & ❇️AI/ML 🔸Programming Languages: Python, R, Julia 🔸Data Engineering: Apache Kafka, Apache Airflow, Apache NiFi, Alteryx, KNIME, Talend, ETL, Data Pipelines, Big Data Technologies 🔸Libraries/Frameworks: TensorFlow, PyTorch, Keras, Scikit-learn, Pandas, NumPy, SciPy, Matplotlib, Seaborn, TFIDF, Spacy, Transformer-based Models 🔸Tools: Jupyter Notebook, Google Colab, Anaconda, DataRobot 🔸Platforms: AWS SageMaker, Google AI Platform, Azure Machine Learning 🔸Computer Vision: Classification, Detection, Tracking, Segmentation, Image/Video Generation 🔸Natural Language Processing: TFIDF, Spacy, Transformer-based Models 🔸Large Language Models (LLM): Applications (RAG, Chain, Agent, Graph), Optimization, Deployment, Fine-tuning 🔸Cloud Services: AWS, Sagemaker 🤖AI Bot Development 🔸Platforms: Dialogflow, Microsoft Bot Framework, Rasa, IBM Watson Assistant 🔸Technologies: Natural Language Processing (NLP), Machine Learning, Deep Learning 🔸Libraries/Frameworks: SpaCy, NLTK, GPT-3/GPT-4 🔸Voice AI Platforms: Vapi.ai, Retell, Blend.ai : For voice and chatbot automation 📊KPI Analysis 🔸Tools: Microsoft Excel, Google Sheets, Tableau, Power BI, Looker, IBM SPSS, SAS 🔸Expertise in identifying, measuring, and optimizing Key Performance Indicators (KPIs) to enhance business performance and decision-making. 🖼AI Art Experience 🔸Tools: Midjourney, Stable Diffusion, DALL-E, Adobe Creative Suite (Photoshop, Illustrator), Procreate 🧰CRM Platforms 🔸GHL, Salesforce, HubSpot, Zoho CRM, Pipedrive, Insightly ⚙️Automation 🔸Make.com, Monday.com, Zapier, Airtable, Microsoft Power Automate: For workflow automation and integration ⚙️Cloud Platforms 🔸Providers: AWS, Google Cloud Platform, Microsoft Azure 🔸Services: Lambda, EC2, S3, DynamoDB, Firebase, App Engine 🌐Web Development 🔸HTML/CSS, JavaScript, TypeScript, React, Angular, Vue, MERN, WordPress, Joomla, Magento 🪄Other Technologies 🔸APIs: RESTful APIs, GraphQL 🔸Testing: Jest, Mocha, Chai, Selenium, Cypress 🔸Containerization: Docker, Kubernetes

R
Web Application
Web Development
AWS Lambda
API Integration
ChatGPT API Integration
Artificial Intelligence
Machine Learning
Natural Language Processing
Data Mining
Data Science
C#
C++
Java
Python
$60 hourly
- 5.0/5
- (44 jobs)
• Algebra (Middle and High School) • College Level Statistics and Probability • R/Python/Data Science • Calculus • GRE/MAT/Executive Assessment CREDENTIALS • Over 1000 tutoring hours only in Upwork with 100% job score • Over 10 years of experience as a teacher - classroom and online experience • YouTube channel covering math topics • Graduated in both mathematics and statistics with a master's degree in Computer Science Hi, More than a tutor freelancing in Upwork, I’m a proper math teacher with real classroom and online tutoring experience. I have tutored from Middle School to Master level mathematics, statistics, R, and machine learning. Invite me anytime to schedule a demonstration. DIFFERENTIAL • strong commitment to student learning • deep knowledge of the subjects • thousands of online tutoring hours

R
Predictive Analytics
Mathematics Tutoring
Teaching Portuguese
Teaching Algebra
Tutoring
Time Series Analysis
Mathematics
Statistics
Calculus
$100 hourly
- 5.0/5
- (14 jobs)
Professional Certificate in Data Science - MIT. More than 30 Microsoft certificates and badges, recognized as Microsoft Innovative Educator Expert for five consecutive years (2017/18 - 2020/21). Passionate about data science and machine learning. Experience as a full time Logistic Analyst (Merck Sharp & Dohme and UPS) and Sales Analyst (Heineken). Working as a full-time freelancer over the past 3 with,developing solutions using PostgreSQL, Mysql or SQL Server hosted on Azure or AWS, Power Bi (Dax, M, Python and R), Excel with VBA, Azure Machine Learning with Python and R, Progressive web app creation with, Bubble and AppSheet, Integrations and API connections.

R
Statistical Analysis
Data Mining
Statistics
Google Apps Script
Microsoft Power BI
AppSheet
SQL
Machine Learning
Data Science
Python
$35 hourly
- 5.0/5
- (96 jobs)
I´m an industrial chemist with experience in downstream processes, wastewater treatment, data visualization, and scientific writing. I have over ten years of experience in both academia and as a consultant. During those years, I have learned quite a few programming languages during my Master's and Ph.D. in Chemical Engineering (primarily data crawling and data analysis). I am the author of a published R package (both on CRAN and in a peer-reviewed journal), widely used for data analysis of aqueous two-phase systems (LLSR package). Here on UpWork, I can help you collect, interpret and present your data using one of several available tools on R or Python. I am more than used to working remotely and as a freelance for clients all around the globe. We can set up voice or video calls and using, instant messaging and emails to improve our communication and achieve outstanding performance for your project. If you decide to hire me, here is what you would do : 1. First, click the invite button to invite me to your job 2. Once it is accepted, I will jump on the phone with you 3. We will discuss all the details together So, if it sounds good for you, click the button, and we can start! I wish you a wonderful week! --------------------------------------------------------- I have experience in the following: Program: - R; - Python; - Docker; - Postgresql; - GIT; Environment: - R Shiny; - RMarkdown. Package: - DataExplorer; - dplyr; - Ggplot2; - knitr, - Lubridate; - leaflet, - Numpy; - Pandas; - Plotly; - tidyr; - Tidyverse;

R
API
Data Analysis
Sentiment Analysis
CircleCI
Snowflake
Data Science
Data Mining
Django
dbt
Beautiful Soup
Dash
Data Scraping
SQL
Python
$90 hourly
- 4.9/5
- (60 jobs)
Want to give life to your project using the most advanced Language models in the market? As an Expert-Vetted (Top 1%) Upwork freelancer, I can help you identifying potential value to be extracted from language models in your business. I have developed many projects using the state-of-the-art natural language processing models such as GPT 3.5, GPT-4, LlaMa 2, Mistral 7B and others. I have expertise in generative AI and NLP use cases. With my work you will have a top-notch model backing your text-based application. I have worked in tasks like: 👉 AI-Based Chatbots 👉 Retrieval-Augmented Generation (RAG) 👉 Prompt Engineering 👉 Fine-tuning 👉 Automated Content Generation 👉 Text Summarization 👉 Language Translation / Machine Translation 👉 Text Classification 👉 Sentiment Extraction / Sentiment Analysis 👉 Reading Comprehension 👉 Named Entity Recognition 👉 Question Answer Systems 👉 News Article Generation 👉 Social Media Content Generation 👉 Relation Extraction 👉 Information Retrieval There are countless problems that can be solved using NLP. Below you can find a brief description of a few of the projects I have worked on. ⭐Job Classification using job posting data ⭐Technical skills similarity ⭐Customer feedback sentiment analysis ⭐Social media content generation ⭐Technical assessment generation ⭐Skills classification ⭐Security threats detection on Airport Radio Comms data ⭐Identify patterns and trends in flight delays ⭐AI-based generation of learning journey (sequence of leearning) for IT professions ⭐Fine-tuning ChatGPT models (GPT 3.5 and GPT 4) for domain-specific tasks. Please take your time and check my work history and the many references I received during the last 5 years.

R
GPT-3
ChatGPT
GPT-4
Transformer Model
Data Science
Deep Learning
Machine Learning
Natural Language Generation
Data Visualization
SQL
Natural Language Processing
Python
$35 hourly
- 5.0/5
- (5 jobs)
I have a degree in geoprocessing and a PhD in Remote Sensing. I have been working as a GIS Analyst, Remote Sensing and Data Scientist, developing automated tools for QGIS and Google Earth Engine. I develop using Python (sklearn, matplotlib, gdal, geopandas), javascript and PostGIS.

R
Big Data
PostGIS
GIS
QGIS
Spatial Analysis
Data Analysis
Remote Sensing
Image Processing
Machine Learning
Data Science
Python
$60 hourly
- 5.0/5
- (62 jobs)
I'm a software engineer who works mostly with backend and scientific software development, including AI. I specialize in tackling complex, exotic projects that require creative solutions. - Bioinformatics tools and pipelines - Web service development - Database management - Genetic Algorithms - API Design and Implementation - Natural Language Processing - Stock and Crypto Trading Algorithms - Data Analysis and Visualization - C/C++/Rust scientific software development - Data Scraping / Crawling My languages of choice are Python/R/Haskell/Rust.

R
Software Design
Algorithm Development
Agile Software Development
Rust
Bioinformatics
Haskell
Genetic Algorithm
Software Debugging
Functional Programming
Deep Learning
Scala
Python
C++
Machine Learning
$30 hourly
- 5.0/5
- (123 jobs)
Hello! 🙋‍♂️ I'm a data scientist and engineer with 6 years of experience using data to get valuable business insights for my clients. Check out my portfolio at, 🔶 apps.hodatascience.com.br 🔷 𝐇𝐞𝐫𝐞'𝐬 𝐡𝐨𝐰 𝐈 𝐜𝐚𝐧 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮: 🔸Data Scraping 🔸Manipulation and deployment of large datasets in server 🔸Data visualization as unique plots with user interactivity (hover text, filter, zoom in/out, etc.) 🔸Apply and analyze statistical tests 🔸Create machine learning models using different algorithms (supervised, unsupervised, and deep learning) 🔸Develop interactive apps using the R package "Shiny" 🔸Implement automated testing 🔸Deploy a webpage with multiple apps I've worked with tech-enabled businesses from different areas, developing innovative solutions that meet users' needs and deadlines. Furthermore, I can manage a project from the beginning through every stage of development until deployment. Let's have a meeting to discuss your project. Get in touch now!🙂 𝐀𝐫𝐞𝐚 𝐨𝐟 𝐦𝐲 𝐞𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: 🔷Programming Languages: 🔸R 🔸Python 🔸Grafana 🔷 Data Viz: 🔸plotly 🔸ggplot 🔸matplotlib 🔷 Machine Learning: 🔸skylearn 🔸tensorflow 🔷 DevOps: 🔸AWS 🔸Git 🔸GitHub Actions 🔸Docker 🔷Database: 🔸SQL 🔸NoSQL 🔷Application: 🔸shiny 🔸bslib 🔷Testing: 🔸testthat 🔸shinytest2 🔷Workflow: 🔸Quarto 🔸RMarkdown 🔸Jupyter Notebook Last updated: March 2024

R
HTML
AWS OpsWorks
Docker
R Shiny
Data Analysis
CSS
Jupyter Notebook
Git
Python
SQL
Data Science
Machine Learning
$12 hourly
- 5.0/5
- (18 jobs)
Currently living in Rio de Janeiro. Data Analysis in Excel & Power Bi. Public Manager experienced in using Excel and Power Bi Panels to data analysis and visualization. In my portfolio, I've done several Power Bi panels to Brazilian companies, including company organization charts; reports on sales; reports on work overtime tracking and ammount spent in trainings. Excel Tutor for a Education Company and I am currently working as Reporting Analyst, developing and maintaining of databases, graphics and tables to produce basic statistical analyses daily. I speak native Portuguese, advanced English and Spanish, basic French. Softwares: Microsoft Excel, Power Bi, Tableau, Basic R and Rstudio IELTS score 8.0 (out of 9.0) SIELE score 835 (out of 1000)

R
Facebook Marketplace
Amazon
AliExpress
Python
Product Registration
$30 hourly
- 5.0/5
- (11 jobs)
I'm a person that don't rest until see the job done. Proactive and extremely skilled to solve your problems, you won't regret to work with me! I'm currently working at the largest private bank of Latin America as Data Scientist, specialized in Fraud Prevention Modeling. My day-to-day tasks includes every-way exploratory data analysis, both visual or statistical, modeling with the full range of machine learning techniques, in addition to many other activities assigned to a data scientist. And all this abusing R, Python, SQL and Excel. Give you a chance to deal with a real lover of data, critical thinking and analytics investigation!

R
Microsoft Excel
Data Visualization
Modeling
Data Mining
Analytics
SQL
Fraud Detection
Machine Learning
Data Science
Python
$8 hourly
- 5.0/5
- (3 jobs)
I have experience and publications with Generalized linear mixed models (GLMMs) and all kinds of statistical tools. See my profile and work on my website: fernando.bio.br

R
Logistic Regression
Data Analytics & Visualization Software
Bayesian Statistics
Statistics
Statistical Infographic
Statistical Analysis
Statistical Analysis Language
Multivariate Statistics
Biostatistics
Regression Testing
Linear Regression
Data Visualization
ggplot2
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