What if your data could finally tell the story you need to hear? What if those numbers turned into insights that drive your growth? Imagine transforming your results and completely revolutionizing your decision-making with actionable insights. If you’re reading this, you’re seeking analytics expertise to unlock the power of your data. I’m Khawaja Abdul Ahad, a certified data scientist with over 4 years of experience, dedicated to helping businesses—from startups to million-dollar enterprises—turn raw data into a strategic roadmap for success. If you’re looking for someone who knows how to deliver impactful results, let’s talk! If you’re tired of: 1) Spending hours on reports that don’t deliver. 2) Struggling to make sense of your data. Then I can help. Whether it’s building custom BI dashboards, performing deep analysis or developing predictive models, I’ve got you covered. 𝗪𝗛𝗢 𝗜𝗦 𝗧𝗛𝗜𝗦 𝗙𝗢𝗥? This service is perfect for you if: 🏅 You need data-driven decisions to power your business strategy. 🏅 You want insightful BI dashboards or custom reports. 🏅 You understand the value of turning raw data into actionable insights. 🏅 You’re ready to predict future trends with AI/ML models. It’s not for you if: 🔸 You expect instant miracles without clear business goals. 🔸 You don’t value data-driven decision-making. 🔸 You’re looking for someone to pull numbers without context. If that resonates with you and you’re ready to unlock the true potential of your data, let’s chat! 𝗛𝗢𝗪 𝗖𝗔𝗡 𝗜 𝗛𝗘𝗟𝗣 𝗬𝗢𝗨? Here’s what I can do: ✔️ Machine Learning / Deep Learning Pipelines: Build and deploy sophisticated models that learn from your data. ✔️ Data Analysis and Visualization: Transform data into clear, actionable insights through effective visual storytelling. ✔️ Predictive Modeling: Utilize advanced techniques to forecast trends and inform your strategic decisions. ✔️ Data Mining: Extract valuable information from large datasets to uncover hidden patterns. ✔️ Recommendation Engine: Create personalized recommendations to enhance user experiences and drive engagement. ✔️ Sentiment and Statistical Analysis: Analyze qualitative data to understand trends and customer sentiment. ✔️ Time Series Analysis: Provide insights into temporal data to support forecasting and anomaly detection. ✔️ ETL Architecture: Design efficient processes for extracting, transforming, and loading data into your systems. ✔️ Natural Language Processing (NLP): Develop algorithms that understand and interpret human language. ✔️ Web Scraping: Gather data from websites to feed your analytics and decision-making processes. ✔️ Cloud Solutions: Leverage cloud technologies to optimize data storage and processing. Let’s start by identifying the service you need. Message me! 𝗪𝗛𝗢 𝗔𝗠 𝗜? I’m a passionate data enthusiast who believes in the transformative power of data. With over 4 years of experience, I specialize in data visualization and advanced analysis to drive success for my clients. 𝗠𝗬 𝗣𝗥𝗢𝗠𝗜𝗦𝗘 𝗧𝗢 𝗬𝗢𝗨 While I can’t promise overnight results, I assure you of a proven process that has benefitted my clients. If that aligns with your needs, let’s connect and start this journey! Happy Customers Day, Khawaja Abdul Ahad P.S. Your success is my success. When you win, we both win. 𝗦𝗢𝗨𝗡𝗗𝗦 𝗟𝗜𝗞𝗘 𝗔 𝗙𝗜𝗧? 𝗡𝗘𝗫𝗧 𝗦𝗧𝗘𝗣𝗦 Click the green ‘Invite to Job’ button. Let’s have a virtual coffee and organize a call!

Hi There, I'm Tomas senior Java/Scala & web developer in Prague, Czech republic. My mother tongue is Czech and I can fluently speak English. My experiences range from building simple responsive web sites to designing large scalable systems for financial business. I like working in a team that cares about design quality and solution's maintainability. I excel in solution design, Java based technologies and I'm fast in learning new technologies. I'm flexible in my working hours and happy yo work with other freelancers you wor with. I'm looking forward to solve your IT problems for you!

𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗲𝗱 𝗗𝗮𝘁𝗮 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 | Building Scalable Data Solutions (with 𝟱+ 𝘆𝗲𝗮𝗿𝘀 of Experience) Your data whispers stories, but you need someone who can truly listen. I'm the data whisperer, here to translate its murmurs into actionable insights. Through elegant pipelines, captivating dashboards, and robust data architectures, I'll make your data sing, guiding you to informed decisions and business breakthroughs. Ready to hear what your data is saying? 𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗱𝗼 𝗳𝗼𝗿 𝘆𝗼𝘂: 🔸 Design and build scalable data pipelines for real-time and batch processing. 🔸 Transform raw data into actionable insights through data modeling and cleansing. 🔸 Develop and deploy robust data storage solutions on cloud platforms. 🔸 Create interactive dashboards and reports to visualize your data effectively. 🔸 Automate data workflows and monitoring processes for efficient data management. 𝗠𝘆 𝗮𝗽𝗽𝗿𝗼𝗮𝗰𝗵: 𝗖𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝘃𝗲: I believe in working closely with clients to understand their unique needs and goals. 𝗔𝗴𝗶𝗹𝗲: I embrace an iterative approach to ensure continuous improvement and rapid delivery of value. 𝗤𝘂𝗮𝗹𝗶𝘁𝘆-𝗗𝗿𝗶𝘃𝗲𝗻: I prioritize data accuracy, security, and scalability in all my solutions. 𝗠𝘆 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: ► 𝗕𝗶𝗴 𝗗𝗮𝘁𝗮 & 𝗗𝗮𝘁𝗮 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴: 🔹Data Pipelines & Automation 🔹Data Integration 🔹Distributed Processing 🔹Stream Processing ► 𝗖𝗹𝗼𝘂𝗱-𝗣𝗼𝘄𝗲𝗿𝗲𝗱 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀: 🔹AWS 🔹GCP 🔹Azure ► 𝗔𝗰𝘁𝗶𝗼𝗻𝗮𝗯𝗹𝗲 𝗜𝗻𝘀𝗶𝗴𝗵𝘁𝘀: 🔹Analytics, BI & Data Visualization 🔹SQL & NoSQL Databases ► 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲: 🔹Containerization & Orchestration 🔹Scripting & Programming I'm excited to partner with you and help you turn your data into actionable insights! 🟧 Feel free to contact me to discuss your project in detail.

I help startups and established businesses design, build, and scale reliable web applications — from early MVPs to large, production-grade systems. With 15+ years of experience, I’ve worked with clients ranging from early-stage startups to Fortune 500 companies, delivering full-stack solutions, leading technical transitions, and advising on architecture and technology choices that align with real business goals. What I typically help clients with: Full-stack web applications (API + frontend) SaaS platforms and internal dashboards Cloud migrations and system modernization Headless architectures and API-driven systems Technical leadership, architecture reviews, and refactors Core experience: Backend: Python, C# (.NET), RESTful APIs Frontend: React, Angular, modern SPA architectures Cloud & DevOps: AWS, Azure, Docker, CI/CD Platforms: Linux, macOS, Windows While my background spans many languages and ecosystems (Python, C#, JS, Go, PHP, Ruby, R), my focus is always on choosing pragmatic, maintainable solutions rather than forcing a specific stack. I’m comfortable stepping in as: A senior individual contributor A technical lead or advisor A problem-solver on complex or legacy systems If you need someone who can own work end-to-end, communicate clearly with both technical and non-technical stakeholders, and deliver production-ready results, I’d be happy to discuss your project.

I have 6 years of professional experience in data analytics and data science, and I am an expert in providing data-driven insights. From statistical analysis to marketing analysis, my skillset is wide, and I will help you move from data to insights to action. My Skills Include: - Python - SQL / PostgreSQL - Superset / Looker - Data Modelling (DBT) - Google BigQuery - Google Analytics 4 - Google Sheets Dashboard - Exploratory Data Analysis - A/B Testing (Switch Back / Causal Inference) - Marketing Analytics - Cohort Analysis

🚀 Hello! I’m Abdelmalik, Quant Trader & Quantitative Researcher, building production-grade buy-side trading and pricing systems, from signal generation to live execution under real-market constraints. I design end-to-end quantitative engines that operate reliably with noisy or delayed data, microstructure effects, latency budgets, and strict forward-only decision rules. My work is desk-oriented: models are judged on robustness, execution quality, regime stability, and deployability. I work with clear milestones, written acceptance criteria, reproducible deliverables, and transparent communication so that scope, validation results, and payment expectations are aligned before each project phase begins. 📈 Quant Trading, Research & Derivatives Systematic Trading & Execution. Live strategies with microstructure-aware gating: spread in basis points, aggressor ratio, upticks. Regime-adaptive logic across trend, volatility and liquidity. Risk-based sizing using ATR, staged exits and VWAP-aware liquidation. Broker OCO orders, circuit breakers and idempotent execution to prevent double fills. Deterministic replays and ghost A/B tests before production. 📊 Options & Exotic Pricing Pricing engines in C++ and Python using Black–Scholes, Heston, Dupire and Variance Gamma. Exotic structures including barriers and baskets. Numerical methods based on correlated and variance-reduced Monte Carlo, and PDEs using Crank–Nicolson with Rannacher smoothing. Volatility surfaces, smile reconstruction, robust proxy aggregation, walk-forward debiasing, affine scale correction and panel volatility guards. 📉 Validation & Results Strict walk-forward validation and multi-regime stress tests. R² between 0.83 and 0.92 on sector basket option pricers. RMSE below 1 basis point on barrier pricing grids. Sub-second C++ kernels with deterministic and replayable outputs. Stable pricing using 15-minute delayed options data. 🧠 Machine Learning Production Models built with Sklearn, XGBoost, PyTorch and TensorFlow. Probabilistic calibration using Platt scaling and isotonic regression, with Brier score and ECE monitoring. Drift detection using PSI, class-imbalance handling and robust cross-validation. GPU acceleration with CUDA and CuPy. Deployment via FastAPI and Streamlit. ⚙️ Quant Infrastructure High-performance C++17 cores using OpenMP, AVX and PyBind11, with parallel Monte Carlo and Cholesky correlation. Market data pipelines using Polygon with minute-level options and level 2 data. Production observability with Prometheus and Grafana SLOs, Redis-based event architecture, atomic snapshots and audit-safe logs. 🎓 Training: Columbia, Yale, Stanford, Wharton, NYIF 🌍 Availability: Remote worldwide or on-site Casablanca 🤝 Open to buy-side quant trading, systematic execution and advanced pricing or risk teams

As a Fullstack developer, I have the skills and experience necessary to build robust and scalable web applications from start to finish. I specialize in using the MERN stack, which includes MongoDB, Express, React.js, and Node.js, to create dynamic and responsive web applications. With years of experience in software development, I have developed expertise in both front-end and back-end development, enabling me to create seamless user experiences and robust server-side applications. I am proficient in a range of programming languages, including JavaScript, HTML, CSS, and SQL, and I am constantly keeping up with the latest trends and best practices in web development. In my work, I prioritize clean, modular code that is easy to read, understand and maintain. I am skilled at working independently or as part of a team, and I have experience collaborating with designers, project managers, and other developers to bring projects to successful completion. Whether you are looking to build a new web application from scratch or need help maintaining and updating an existing application, I have the skills and experience necessary to deliver high-quality results on time and within budget. Contact me today to discuss your project needs and how I can help bring your vision to life.

Professional summary: Big data and analytics enthusiast, permanent learner, with about 18 years experience of data analysis and research in experimental particle physics and 10 years of data science experience in industrial settings (advertising, automotive, supply chain, energy&utility and consulting). Co-author of many software packages in experimental particle physics and industry. Leader of a few algorithmic and physics research groups and data science groups in industry. Supervised many undergraduate/PhD students, data scientists and interns in various projects. Delivery of end-to-end ML services in business companies using on-premise and cloud technologies. Primary author of more than 30 papers published in major peer-reviewed physics journals with application of machine learning algorithms in physics experiments and industrial environments: inspirehep.net/author/profile/D.V.Bandurin.1 Business website: solveum.ai A few projects have been either delivered or in progress on Upwork. Skills: – Programming in Python, R, C++, Scala, Fortran, MatLab – SQL (incl. Postgres, Redshift, Snowflake), noSQL (Mongo, Redis, BigQuery, Cassandra, Neo4j, ElasticSearch); – Big data processing using Hadoop, Databricks, Spark, Hive, Impala; – Machine learning using scikit-learn, MLLib, MLFlow, TensorFlow, Keras, PyTorch; – Distributed deep learning using Dask, Ray, Horovod; – Reinforcement learning using RLLib, Ray, COACH, OpenAI Gym; – Natural language processing [incl. Gensim/NLTK/SpaCy; GloVe/Word2Vec/FastText/BERT, etc]; – Computer vision [incl. OpenCV, OCR]; – Azure Cloud (Databricks, Delta Lake, Azure ML, Synapse Analytics, Azure IoT Hub, IoT Edge, Functions); – AWS Cloud (RDS, Amazon S3, EC2&ECR, Elastic Beanstalk, Lambda, SageMaker, etc); – Google Cloud (Vertex AI, BigQuery, DataStudio, Kubeflow, AutoML); – IBM Watson (Audio and Text modeling, transcription services); – Data visualization (Tableau, Power BI, QuickSight, Python&R libraries, e.g. Plotly, Dash, Shiny); Recommendations: see dmitrybandurin/details/recommendations/ at LinkedIn.

Im a software engineer backed by 14 years of experience and proven ability to develop high-performance applications and technical innovations. My technical experience areas includes : Working on cross-platform solutions (Windows, Linux). Built solutions using several scripting/programming languages (Java,Python,C#,JavaScript,PHP,ASPDotNET,NodeJS). Experience in data storage solutions (MS SQL Server, MySQL, Mongodb, Redis). Advanced knowledge of web development frameworks/tools and best practices (HTML,CSS,JQuery,BackboneJS, Django, Pyramid,ExpressJS) Big Data Processing (Hadoop) Web servers like (Apache, Nginx, Tomcat, IIS, Jetty) Unit testing frameworks and continuous integration tools. Source Version Control applications (SVN, Git) Amazon Cloud Services (AWS, S3, Cloud Search, Dynamo DB) And there is much more to list of skills i gathered over the years.

IT Support Engineer | Email Deliverability Expert I fix email deliverability issues fast. SPF/DKIM/DMARC setups, spam folder escapes, warmup strategies, and sender reputation recovery for SaaS founders, agencies, and cold email senders using Instantly, Klaviyo, SmartLead, HubSpot, and more. ✅ Email Deliverability & Authentication Align SPF, DKIM, DMARC, MX records with "Fix It" steps and 0-100 scores. Diagnose spam/junk issues using MxToolbox, mail-tester, Google Postmaster, MS SNDS. Run blacklist checks, IP reputation audits, and domain verification. ✅ Cold Email & Outreach Setup Configure dedicated IPs, custom tracking domains, and ESPs (SendGrid, Mailchimp, ActiveCampaign, GoHighLevel). Implement warmup and deliverability monitoring for 95%+ inbox rates. ✅ Migrations & Platforms Google Workspace ↔ Microsoft 365 migrations (IMAP, cPanel, GoDaddy, Zoho). Outlook PST handling, tenant-to-tenant transfers with zero downtime. ✅ DNS & Domains Manage GoDaddy, Namecheap, Cloudflare DNS (DNSSEC, WAF, CNAME fixes). ✅ Tools I Master MxToolbox, mail-tester, Blacklist Checker, Google Postmaster Tools, Microsoft SNDS, cPanel. Proven results: Campaigns moved from 20% to 90% inbox placement. Message me your deliverability pain.