ML Engineer — Computer Vision, Claude/LLM Agents & Audio AI I build deep learning systems across vision, language, and audio — and ship them to production, not just notebooks. I've trained models from scratch, fine-tuned transformer architectures, and deployed to Core ML on real client engagements (including a 400+ hour model-build contract). 5.0 stars across every reviewed project. Computer Vision Image classification, detection, and feature extraction with CNN and transformer (ViT/AST-family) architectures. My core audio work runs on spectrogram based vision models, so the same deep-learning toolkit — convolutions, attention, transfer learning — carries directly into image and video tasks. Claude / LLM Agents & Automation AI agents, automation workflows, and reasoning assistants built on Claude and OpenAI APIs. RAG pipelines, tool-use/agentic systems, and LLM integrations that connect models to real data and real actions. Audio & Speech AI Instrument/audio classification, feature extraction, and transformer fine-tuning (AST, Wav2Vec2, HuBERT), plus generative audio with AudioCraft/MusicGen. Built multiple audio models end to end — clients describe me as central to their ML work. Deployment & Engineering TensorFlow/PyTorch → Core ML export, FastAPI inference services, and optimized real-time / batch pipelines. I handle the messy export and optimization steps end to end. Top Rated · 100% Job Success · 5.0 across all reviewed jobs. I move fast and build things that actually deploy.

I'm a freelance data analyst and stock market enthusiast. I specialize in several areas, including: 🧠 Machine Learning: I have expertise in developing ML models using PyTorch, TensorFlow, and Scikit-Learn. I create custom scripts and GUI-based applications for various ML tasks like classification, regression, and clustering. 📊 Data scraping using Python, Parsehub, and UiPath for data extraction in any format (CSV, JSON, Excel) 🤖 📈 Stock analysis using fundamental, technical, management, peer, and DCF value analysis in detail 💰 🤖 Trading bot creation for stocks, forex, and crypto, custom indicator and strategies for Pinescript, EA for MT4 and MT5, and AmiBroker 💻 🐍 Expert in Python for custom script and GUI-based application development 🌟 🎬 Video Editing and Post-Production: Specializing in long and short format video editing and post-production as per the latest trends. 📚 Dataset Creation: Proficient in creating structured datasets for machine learning projects. Collection, cleaning, and preprocessing of data from various sources. Transformation of raw data into usable formats for analysis and modeling. 🌐 Website Development: Expertise in developing and customizing websites using Shopify, WordPress, and other platforms. 🖼️ Photo Editing: Skilled in photo editing and retouching to enhance visual content. Here are some services that I offer 🤖 Machine Learning: ✅Natural Language Processing: models for question answering, named entity recognition, sentiment analysis, similarity detection, speech text, chatbots, passage re-ranking, and document layout token classification 🗣️💬📝 ✅Computer Vision: models for face detection and recognition, pose estimation, object detection, segmentation, stitching (panorama stitching), and homography warping 👁️📷 ✅Generative AI and GANs: models for super-resolution, text-to-image, image enhancement, synthetic images/video/audio generation, voice cloning, and text generation 🎨🖼️🎵 ✅Recommendation Systems: systems based on watched/visited history, interest, search, popularity, and user-based and item-based recommendations 🎯👥🔎 ✅Predictive Analytics: solutions for time series forecasting, anomaly detection, root cause analysis, KPIs development, data interpretations, and hybrid forecasting models for improved accuracy 📈📊🕰️ ✅Data Visualization: 2D and 3D visualizations using Matplotlib, Seaborn, Tableau, Pyrender, Open3D, point clouds, affine and projective transformation of images 📊📈🖼️ 🔍 Data Scraping: ✅Extraction from various sources including websites, social media platforms, and APIs 🌐 ✅Advanced web scrapings techniques such as pagination, infinite scrolling, and login authentication 🤖 ✅Clean and preprocess data for analysis or integration into existing systems 🧹 ✅Familiarity with tools such as BeautifulSoup, Scrapy, and Selenium 🛠️ ✅Experience with databases and data management tools such as MySQL and MongoDB 🗃️ 💰 Stock Analysis: ✅In-depth knowledge of financial statements and metrics such as P/E ratio, EPS, and ROE 💼 ✅Technical analysis using indicators such as moving averages, MACD, and RSI 📈 ✅Competitor analysis and benchmarking against industry peers 👥 ✅Experience with financial data providers such as Yahoo Finance, Alpha Vantage, and Quandl 📊 ✅Knowledge of statistical methods for stock price forecasting and trend analysis 📉 💸 Trading Bots: ✅Customized trading strategies for different asset classes such as stocks, forex, and crypto 💹 ✅Automated trading execution using APIs or broker-specific software 🤖 ✅Backtesting and optimization of trading algorithms for improved performance 📊 ✅Creation of custom indicators and scripts using tools such as Pinescript and MQL 💻 ✅Integration with third-party platforms such as TradingView and MetaTrader 🌐 🎬 Video Editing and Post-Production: ✅ Expertise in long and short-format video editing for YouTube, Instagram, TikTok, and other platforms 📹 ✅ Proficiency in the latest video editing software like Adobe Premiere Pro, Final Cut Pro, and DaVinci Resolve 🎥 ✅ Skills in colour grading, sound editing, motion graphics, and special effects 🌈🎵✨ ✅ Creation of engaging and trendy video content, including vlogs, tutorials, promotional videos, and more 🎬🔥 ✅ Efficient workflow to meet tight deadlines without compromising on quality ⏱️✔️ 🌐 Website Development: ✅ Shopify and WordPress development ✅Custom website solutions ✅E-commerce integration ✅Responsive design 🖼️ Photo Editing: ✅Professional photo retouching ✅Color correction and enhancement ✅Background removal ✅Creative photo manipulation

Across 12 years of software development and 9 years specializing in machine learning, I have built systems ranging from conversational chatbots to computer vision based grading tools, working with clients across different industries and problem types. What stays consistent across all of it is the same goal, moving past a model that performs well in isolation to one that performs well once it is actually in production. I have completed 104 jobs on Upwork, earned $200K plus, and maintained a 100% Job Success score with Top Rated status. Clients have used my work to ship products up to 3x faster while cutting $10K a month in engineering costs, using AI assisted development on top of solid computer science and machine learning fundamentals. I also hold a Master's degree in Machine Learning, and I currently lead a 45 engineer team building production AI and ML systems. What I actually build: Conversational AI and LLM systems. Chatbots and multi turn assistants built on RAG pipelines and vector search, with real guardrails so the model does not make things up when it does not know the answer. Computer vision pipelines. Detection, classification, and grading systems trained on real world data, not clean benchmark datasets. Natural language processing. Text classification, sentiment analysis, entity extraction, and low resource language OCR, including work on Urdu, where off the shelf tools mostly do not exist. Production ML infrastructure. Models packaged, monitored, and deployed with Docker, Kubernetes, and cloud infrastructure on AWS, Google Cloud, or Azure, including edge deployment where latency or hardware is constrained. Some of what my team has shipped: ✦ Avatare, a conversational AI platform handling multi turn dialogue in production ✦ Compugrade, an AI assisted autograding system for K12 education built on computer vision ✦ AffectCX, a live conversational chatbot supporting pharma sales teams ✦ A multimodal conversational AI platform combining RAG based retrieval with generation ✦ A computer vision grading pipeline for physical collectibles, handling classification and defect detection ✦ Urdu OCR, a low resource language OCR system built where almost no existing tooling was available Technical stack: Python, PyTorch, TensorFlow, Keras, JAX/Flax, OpenCV, Docker, Kubernetes, AWS, Google Cloud, Azure, ONNX, TFLite, CoreML AI and ML methods I work with: Large language models including GPT4, Claude, and Llama 2. Retrieval Augmented Generation and vector databases. Traditional ML including random forests, SVM, and KNN. Deep learning including CNNs, RNNs, GANs, transformers, and BERT. MLOps including CI/CD, model monitoring, and versioning. If you are dealing with a model that only works some of the time, a system that needs to move from prototype to something production ready, or a computer vision or NLP problem that off the shelf tools have not solved, message me. I typically reply within 2 hours and can prioritize urgent projects. I will tell you honestly whether AI is the right tool for the job before I agree to build anything.

Want to integrate AI into your business and turn complex workflows into intelligent systems that save time and increase productivity? I help businesses build practical AI-powered solutions, from LLM applications and RAG systems to AI agents that automate real tasks and deliver measurable value. I’m a Full-Stack Developer with hands-on experience in both AI and modern web development. I specialize in designing and developing scalable applications using: • AI & Machine Learning: LLMs, RAG (Retrieval-Augmented Generation), AI Agents, Prompt Engineering, Semantic Search, Chatbots, Workflow Automation, API integrations. • Frontend Development: React.js, JavaScript, HTML, CSS, responsive and user-friendly interfaces. • Backend Development: Node.js, FastAPI, Laravel, RESTful APIs, database design, authentication, and system integrations. I focus on building solutions that are not only technically strong, but also aligned with business goals—whether it’s creating an AI assistant, automating internal processes, developing a custom web application, or integrating AI capabilities into existing products.

I’m a Senior AI Developer with 11+ years of hands-on experience in Machine Learning, Deep Learning, Natural Language Processing (NLP), Computer Vision, and Data Science, building intelligent systems that think, see, speak, and create like humans. Over the past decade, I’ve successfully delivered 70+ AI projects across startups, agencies, and enterprises - consistently improving performance, efficiency, and business outcomes with measurable impact. **Key Achievements & Results: - Increased model accuracy from 76% → 98.4% on large-scale prediction systems. - Reduced manual workloads by up to 90% through end-to-end AI automation. - Delivered AI pipelines processing over 1.5 TB of data daily with real-time insights. - Built AI chatbots handling 100K+ daily user interactions and improving engagement by 240%. - Created AI art and video generation platforms producing 250,000+ unique creative assets monthly, cutting production costs by 70%. - Developed computer vision solutions with YOLOv8 + PyTorch reaching 99.2% detection accuracy and <45ms response time. - Integrated predictive analytics models that boosted marketing ROI by 52% and sales forecasting accuracy by 33%. **Core Skills & Tech Stack: - AI & Machine Learning: Machine Learning, Deep Learning, Neural Networks, Artificial Intelligence - Frameworks & Tools: TensorFlow, PyTorch, Scikit-Learn, OpenCV, FastAPI, LangChain Programming: Python, JavaScript - Specialties: Natural Language Processing (NLP), Computer Vision, AI Chatbots, AI Art & Video Generation, Data Science, Predictive Analytics - Methodologies: Reinforcement Learning, Transfer Learning, Model Optimization, LLM Integration I have strong experience in Python, TensorFlow, PyTorch, NLP, and Computer Vision, and I’ve deployed production-grade AI systems that run across cloud platforms, handle millions of data points, and deliver real business value - not just prototypes. **Project Highlights: - AI Chatbot Platform: (OpenAI + LangChain + FastAPI) - scaled to over 120K+ users/day, reducing support response time by 80%. - AI Art & Video Generator: for a creative brand - automated visual production, generating 10K+ unique videos weekly and saving hundreds of man-hours per month. - Computer Vision App: YOLOv8 + PyTorch real-time detection system - processed 1.2M frames/day with 99% precision. - Data Science Engine: built a predictive analytics model that increased lead conversion by 41% and optimized ad spend by 28%. - NLP Pipeline: fine-tuned BERT-based models to process 10M+ text entries, achieving 98% sentiment accuracy. I’m passionate about Artificial Intelligence, Machine Learning, NLP, Deep Learning, and Computer Vision - creating AI systems that learn, adapt, and perform at scale. If you need someone who combines creative thinking, deep technical expertise, and business-driven AI strategy, I’m the one to turn your idea into a high-performance, scalable AI product. What’s the most ambitious AI project you’d like to bring to life next?

Welcome to my Upwork profile. AI Engineer building production-grade AI systems that automate real business operations. Expert in Machine Learning, Generative AI, and Large Language Model (LLM) systems, I design and deploy solutions that reduce manual work, improve response time, and scale business workflows. 🔹 CORE EXPERTISE Experienced in designing scalable, production-grade AI architectures using OpenAI APIs, LLM frameworks, and modern vector search systems. • LLM Applications (GPT-4, GPT-5, Claude, Gemini) • Agentic AI Systems (LangChain, LangGraph) • Retrieval-Augmented Generation (RAG) • Vector Databases (FAISS, Pinecone, ChromaDB) • AI Voice Agents (Twilio, Retell AI, real-time call automation) • NLP Pipelines (classification, extraction, summarization) • AI Chatbots & Conversational Systems • AI Automation Systems (n8n, Make, API workflows) • API-based AI integrations & backend systems • Hallucination mitigation & response validation • Prompt Engineering 🧠 NOTABLE AI SYSTEMS 📞 AI Lead Qualification & CRM Automation System Designed an AI-driven system to automate inbound lead handling, qualification, and CRM updates. 🔹 Solution • GPT-based lead qualification and scoring • Conversation analysis and structured data extraction • CRM integration for real-time updates • Automated routing and prioritization 🔹 Result ✔ Faster lead response time ✔ Reduced manual screening effort ✔ Improved sales workflow efficiency ━━━━━━━━━━━━━━━━━━━ ⚙️ AI Workflow Automation System (n8n + GPT) Built end-to-end automation pipelines connecting AI models with business tools and APIs. 🔹 Solution • Multi-step workflows using n8n • GPT-based decision-making and automation • Integration with email, CRM, and databases • Error handling and scalable execution logic 🔹 Result ✔ Reduced repetitive manual tasks ✔ Improved operational efficiency ✔ Enabled scalable automation ━━━━━━━━━━━━━━━━━━━ 📄 AI Data Extraction & Document Processing System Developed AI pipelines to extract, structure, and analyze data from unstructured documents. 🔹 Solution • NLP + GPT-based extraction pipelines • Classification and structuring workflows • Processing PDFs, reports, and raw text • Clean structured outputs for downstream systems 🔹 Result ✔ Converted unstructured data into usable formats ✔ Improved analytics and reporting workflows ✔ Reduced manual data processing time ━━━━━━━━━━━━━━━━━━━ 🤖 GPT Chatbots & AI Assistants Built domain-specific AI assistants for customer support and internal operations. • GPT-powered chatbot development • RAG-based knowledge grounding • Vector search + retrieval pipelines • API integrations with business systems ━━━━━━━━━━━━━━━━━━━ 🏢 Internal RAG Knowledge Systems Developed AI assistants trained on company documents and internal data. • LangChain-based RAG architecture • Vector indexing (FAISS / Pinecone / ChromaDB) • Secure document ingestion pipelines • Context-aware response systems If you're looking to build ML models, develop LLM/GPT applications, create RAG-based assistants, or automate business workflows using AI, I can help you design and deploy a scalable, production-grade solution.

Greetings, I am a Senior AI Engineer and Data Architect specializing in Machine Learning, Deep Learning, Federated Learning, AI Agent Development, LLMs, AI Automation, Automated Workflows (n8n), and Data Architecture. I focus on building scalable, secure, and production-ready AI and data solutions that solve real business problems. My core strength lies in designing end-to-end AI and data systems, from data ingestion, data modeling, and data processing to model development, deployment, automation, and business intelligence. I have strong experience in LLM-based RAG systems, computer vision, privacy-preserving AI using Federated Learning, and modern data platforms. I also work on enhancing AI security through Blockchain integration where applicable. - Key Expertise: * Data Architecture & Engineering * Data Lake, Data Warehouse, and Lakehouse Architecture * Data Modeling: Star Schema, Snowflake Schema * ETL/ELT Pipelines and Data Integration * Data Governance, Data Quality, and Metadata Management * Batch and Real-Time Data Processing * Big Data Platforms: Spark, Hadoop, Cloudera CDP * DataOps, CI/CD, and MLOps - Generative AI and Automation * LLMs, RAG systems, AI chatbots * AI Agent Development * Agentic AI (LangGraph, CrewAI, MCP) * Automated Workflow Development * n8n Workflow Automation * AI workflow automation and integrations * API integration and orchestration - Advanced AI * Federated Learning * Secure AI systems with Blockchain integration - Machine Learning * Regression models, Decision Trees, SVM * Ensemble methods: Random Forest, Gradient Boosting, XGBoost * Probabilistic and distance-based models: Naive Bayes, KNN - Deep Learning * ANN, CNN, RNN, LSTM, GAN * Model optimization and deployment - Computer Vision * Image classification, object detection, segmentation I am passionate about collaborating with clients to deliver robust, efficient, and future-ready AI and data solutions. If you are looking for a Senior AI Engineer and Data Architect who combines research-level expertise with real-world implementation, I would be happy to discuss your project.

𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗔𝗜 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 & 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 8+ 𝗬𝗲𝗮𝗿𝘀 | 𝟭% 𝗼𝗳 𝗨𝗽𝘄𝗼𝗿𝗸 | 𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀. Working with LLMs for the past 8+ years and have good expertise in AI Agents development using langchain, LlamaIndex, and LLMs like Claude, GPT4o, Amazon Bedrock, Ollama Core Expertise & Technical Strengths 🦾 Early adopter of Prompt-Driven Development (PDD), designing AI systems where prompts become the primary specification and code acts as an implementation layer. 🦾 Deep experience working with leading LLM ecosystems including OpenAI GPT models, Claude Sonnet/Opus, Gemini, Mistral, Llama, Hugging Face, Together AI, Ollama, LM Studio, Groq, Cursor, Windsurf, Codex, and Claude Code. 🦾 Proven ability to bring AI solutions from concept to production using frameworks and tools such as DSPy, TextGrad, LangChain, LlamaIndex, LangSmith, LangServe, MemGPT, Kor, Zapier, and modern AI coding environments. 🦾 Strong optimization background with fine-tuning and model acceleration techniques using QLoRA, DeepSpeed, Unsloth, quantization methods, Transformer architectures, and distributed GPU infrastructure to improve performance while reducing costs. 🦾 Extensive experience building agentic systems with technologies including MCP, OpenAI Agents SDK, CrewAI, AutoGen, LangGraph, Google ADK, Open Interpreter, MultiOn, and computer-use frameworks. 🦾 Skilled in computer vision and generative media development using OpenCV, Stable Diffusion, Midjourney, Runway, Pika, and other image/video generation platforms. 🦾 Developed real-time voice applications with speech recognition and synthesis using Whisper, ElevenLabs, Twilio, Bland AI, and related conversational AI technologies. 🦾 Strong machine learning foundation with TensorFlow, PyTorch, Keras, scikit-learn, and development expertise in Python, JavaScript, C++, and Mojo. 🦾 Specialized knowledge in quantitative finance, algorithmic trading, cryptocurrencies, DeFi ecosystems, NFTs, Solidity, and forecasting technologies such as Prophet, TimeGPT, PatchTST, and AutoTS. 🦾 Full-stack engineering experience across React, Angular, Vue.js, Django, Flask, FastAPI, Node.js, and modern AI-assisted development platforms. 🦾 Cloud and infrastructure expertise spanning AWS, Google Cloud, Azure, and DigitalOcean. 🦾 Hands-on experience with MLOps workflows using MLflow, Weights & Biases, Neptune, BentoML, Docker, and scalable data systems including Pinecone, Weaviate, FAISS, Neo4j, MongoDB, PostgreSQL, MySQL, BigQuery, and SQL Server. 🦾 Experience supporting fundraising activities, investor outreach, pitch preparation, due diligence processes, and deal execution. 🦾 Product leadership capabilities covering the entire lifecycle—from ideation and strategy to launch, iteration, and retirement—while leveraging AI to streamline complex business operations. 🦾 Leadership experience in recruiting, team building, agile delivery, performance management, and coordinating large-scale teams across multiple functions. 🔹 Why Businesses Partner With Me → End-to-end ownership of projects, from system design and development through deployment and ongoing support. → Focus on production-ready solutions that are scalable, maintainable, and built for long-term growth rather than short-lived prototypes. → Transparent communication with regular progress updates, proper documentation, and predictable delivery. → Experience building enterprise-grade applications that meet strict performance, security, and compliance requirements. → Ability to scale execution through team leadership and collaboration, ensuring larger projects can be delivered efficiently. 🔹 Areas Where I Add Value → Designing and developing AI agents and advanced multi-agent ecosystems. → Building, fine-tuning, and deploying machine learning models for real-world applications. → Integrating OpenAI and other LLM APIs into existing or new products. → Creating and connecting RESTful APIs for seamless system communication. → Automating repetitive business processes and workflows using 🤝 Working With Me: I pride myself on clear communication, translating complex AI concepts into actionable business strategies. Whether you need a production-ready AI system, strategic guidance, or technical leadership, I deliver solutions that exceed expectations. I'm available for both short-term projects and long-term engagements. Ready to transform your business with AI? Let's discuss how I can help you leverage the latest in GenAI, LLMs, and machine learning to achieve your goals. Thanks, Ashima Keywords: Artificial Intelligence, Machine Learning, Deep Learning, GenAI, Generative AI, ChatGPT, GPT-4, GPT-5, Large Language Models, LLM, Fine-tuning, RAG, Retrieval Augmented Generation, RLHF, Vector Database, Embeddings, Transformers, NLP, Computer Vision, PyTorch, TensorFlow, Python, AWS, GCP, Azure, Healthcare AI, FinTech AI, MLOps, AI Architecture, Prompt Engineering, LangChain, Hugging Face

I am a dedicated ML / AI Engineer with over 2 years of experience in Python, Flask, FastAPI, Django, and Generative AI, continuously learning and honing my skills to stay at the cutting edge of technology. As a freelancer, I am committed to delivering high-quality solutions for my clients, bringing a strong foundation in Python development and diverse technical skills to each project. Expertise: • Python Development: Extensive experience in building and deploying applications using Python. • Web Frameworks: Proficient in Flask and FastAPI for developing scalable and efficient web applications. • Deep Learning & Machine Learning Frameworks: Skilled in PyTorch, TensorFlow, and Scikit-Learn for creating and optimizing machine learning models. • Data Science & Visualization: Expertise in Pandas, NumPy, Matplotlib, and OpenCV for data manipulation, analysis, and visualization. • Deployment & DevOps: Hands-on experience with Docker and Anaconda for creating reproducible environments and deploying applications. • Vector Databases: Knowledgeable in Pinecone and ChromaDB for managing and querying high-dimensional data. • Feature Store Management Services: Efficient management of reusable feature sets for robust machine learning pipelines. AI / ML Specializations: • Machine Learning Algorithms: Proficient in SVM, KNN, Regression, Decision Trees, Random Forest, Ensemble methods, and Time Series Analysis. • Deep Learning Architectures: Experience with ANN, CNN, YOLO, LSTMs, RNNs, Transformers and Transfer Learning for various AI applications. • LLM API Integration: Skilled in integrating OpenAI, Gemini, and Claude models using their APIs for production applications, covering prompt engineering, response optimization, rate-limit handling, and performance monitoring. • Generative Models: Proficient in working with diffusion models, GANs, and transformer-based generative architectures for image synthesis, inpainting, and style transfer, with experience in LoRA fine-tuning for model adaptation. • NLP & LLMs: Understanding of NLP tools such as Spacy, NLTK, NER, word2Vec, and TF-IDF; experience with LLMs like Gemini, GPT, Open Source LLMs for advanced language processing tasks. • Text-to-Speech & Speech-to-Text Models: Proficient in developing and fine-tuning speech processing applications, with hands-on experience utilizing Synthflow AI's customizable voice agents and ElevenLabs' advanced multilingual text-to-speech and speech-to-text technologies. • Retrieval-Augmented Generation (RAG): Proficient in integrating retrieval systems with generative models for enhanced AI-driven solutions, including hands-on experience with Multimodal RAG techniques that combine text, images, and audio inputs to improve contextual understanding and response accuracy. Feel free to contact me anytime to discuss how I can contribute to your project. Let's create something great together!

Top Rated Data Analyst with 6+ years of experience using Python, SQL, R, Power BI, and machine learning to clean complex data, build predictive models and forecasts, automate reporting, and turn results into clear business decisions. Across 55 Upwork contracts, I have supported businesses, finance professionals, and research teams with projects ranging from large-scale data processing and customer analytics to financial forecasting, statistical modeling, and biomedical research. I can help you with: • Data extraction, cleaning, merging, matching, deduplication, and validation • Exploratory data analysis and identification of meaningful patterns • SQL querying, database analysis, and recurring reporting workflows • Large-scale data processing with Python, pandas, SQL, and DuckDB • Machine learning classification, regression, gradient boosting, random forests, clustering, and feature engineering • Predictive analytics, model comparison, cross-validation, probability calibration, leakage detection, and error analysis • Time-series forecasting, backtesting, financial modeling, pricing, demand, profitability, and risk analysis • Customer segmentation, retention, churn, cohort analysis, and ROI modeling • Power BI dashboards, Excel reports, KPI tracking, and data visualization • Statistical analysis using R, Stata, SPSS, and Python • A/B testing, hypothesis testing, causal impact analysis, and experimental design • NLP, text classification, thematic analysis, and human-verified AI-assisted workflows Selected project experience includes: • Built a Python and DuckDB workflow to process 483.9 million records and create a validated 395.9 million-record analytical sample • Analyzed 2.3 million transactions to measure pricing and behavioral responses • Developed credit-risk prediction models and evaluated 84 insolvency-model specifications • Built customer-segmentation, pricing, demand, margin, and forecasting workflows using Python and SQL • Conducted reproducible biomedical and proteomics analysis in R across 146 samples and approximately 5,300 protein groups • Combined and validated economic, financial, and policy data from multiple international sources • Produced dashboards, forecasts, statistical reports, and decision-ready recommendations for business and research clients My primary tools include Python, pandas, NumPy, scikit-learn, SQL, DuckDB, R, Stata, Excel, Power BI, SPSS, MATLAB, and LaTeX. I use AI to accelerate appropriate parts of analysis, coding, documentation, and quality assurance—but I independently verify the results. My workflows include reproducible code, control checks, documented assumptions, validation tests, and clear explanations of limitations. You will receive organized data, maintainable code, reliable analysis, professional visualizations, and a concise explanation of what the findings mean for your project. Send me your data and objectives, and I’ll suggest a practical approach.