📊 Your data is only valuable if you can trust it and act on it. I make both happen. I'm a data analyst covering the full pipeline — from raw, messy, multi-source data all the way to clean, validated, decision-ready insights. Whether your data lives in websites, PDFs, APIs, spreadsheets, or databases, I build automated systems to extract it, transform it, analyze it, and deliver it in a format you can actually use — fast, repeatedly, and at scale. Entrepreneurs, researchers, and organizations hire me when accuracy isn't optional, manual processes need to be eliminated, and deadlines are real. 💬 "Meticulous, reliable, detail-oriented. He collected everything we needed, structured it logically, and delivered faster than expected." 💬 "Delivered every project before deadline... Planning to keep him on the team." 💬 "Practical recommendations that respected real trade-offs. Well worth doing early." ─────────────────────────── 🔧 WHAT I DO ─────────────────────────── 🧹 Data Cleaning & Preprocessing — Structured data wrangling with Pandas and NumPy. Missing values, inconsistent formats, outliers, and multi-source merging so your analysis is built on a solid foundation. 🔄 Data Processing & ETL Pipelines — End-to-end ETL: ingestion, transformation, normalization, deduplication, and validation. Your data arrives analysis-ready — and stays that way. 📈 Data Analysis & Insights — EDA, statistical analysis, trend discovery, and business metrics that drive real decisions — not just pretty charts. 🔍 Data Collection & Web Scraping — Automated extraction from websites, PDFs, and APIs. Proven on large, multi-source datasets (200+ entities and beyond). 📊 Dashboards & Visualization — Interactive, insight-driven reports in Power BI, Tableau, Excel, and Google Sheets. 💾 Database Development — Scalable schemas and optimized databases built for reliable long-term operations. ✅ Data Quality Audits — Automated checks that catch problems before they become expensive ones. ─────────────────────────── 🛠 TOOLS & STACK ─────────────────────────── Python (Pandas, NumPy, BeautifulSoup, Scrapy, Selenium, Requests, Matplotlib, Seaborn) • SQL • Power BI • Tableau • Excel • Google Sheets • ETL Pipeline Design • Web Scraping • Data Modeling • Database Design 📜 Certifications: Google Data Analyst Specialist | Data Visualization (Forage) ─────────────────────────── 🎯 MY PROCESS ─────────────────────────── Understand your goal → Design the right data approach → Deliver clean, validated, repeatable results with full transparency. No manual workarounds. No scope creep. No surprises. Send me your project details and I'll come back with a clear execution plan and realistic timeline.

PROFILE: Skilled and enthusiastic Machine Learning Engineer with an aptitude for self-learning, eager to leverage my expertise in implementing SoTA solutions to drive project success. Have significant experience in computer vision, NLP, time series analysis, recommender systems and basic machine learning. Also have a background in multidimensional statistical analysis(PCA, factor analysis, MDS, correlation analysis, cluster| discriminative analysis). Have good knowledge of differential equations, optimization and operations research probability theory. SKILLS AND KNOWLEDGE: Computer vision object detection/segmentation(Mask R-CNN, U-Net, YOLOv5, YOLOv6, YOLOv8, SSD, Faster R-CNN, etc), image generation(CLIP, stable-diffusion), face verification/detection, face mesh detection(mediapipe), tracking of the objects(STARK, ReID, BotSORT, Bytetracker, etc), OCR NLP speech-to-text(AWS Transcribe, Deepgram), topic modelling(LDA, Amazon NTM, BERTopic), punctuation and capitalization(SpaCy, nltk, HuggingFace), clustering(Faiss, sklearn, Gensim), text generation(BERT, Roberta, GPT-neo, etc.), NER, etc. Recommendation Systems TF Recommenders, Collaborative and Content-based filtering, text similarity, etc. Machine Learning: EDA, XGBoost, KNN, SVM, XGBoost, Random Forest and Decision Tree, PCA and TSNE, factor analysis, MDS, correlation analysis, cluster| discriminative analysis, time series analysis. TECHNICAL STACK: Cloud Platforms •Google Cloud (GCP): Google BigQuery •AWS S3, AWS EC2 Version Control & Collaboration •Git •BitBucket Programming Languages •Python •MATLAB •C++ ML & DL: •PyTorch: Torchserve •TensorFlow: TensorRT, Keras •Mediapipe •ONNX •Stable Diffusion: Diffusers, Dreambooth •Scrapy NLP •HuggingFace •NLTK •SpaCy •Gensim Operating Systems •Linux Computer Vision & Image Processing •OpenCV •Pillow •FFmpeg •Ultralytics •OCR •Defisheye •CVAT Databases •SQL •PostgreSQL API & Web Development •Flask (REST API) •Postman Data Visualization •Seaborn •Matplotlib •Plotly •Dash •Streamlit Data Analysis & Time Series •Pandas •Numpy •CuPy •SciPy •SymPy Tracking •TensorBoard •Weights & Biases(W & B) •MLflow PM Processes: •Agile, Scrum, Kanban. Keywords: | AI Engineer | ML Engineer | Machine Learning | Large Language Models | LLM Developer | LangChain Developer | LangGraph Expert | RAG Developer | Retrieval-Augmented Generation | OpenAI Developer | Claude AI | Gemini AI | ChatGPT API | GPT-4 | Autonomous Agents | AI Chatbots | AI Copilot | AI Assistant | Toolformer | Function Calling | Agentic Systems | ReAct Agents | Prompt Chaining | Agent Routing | Self-Improving Agents | Embedding Models | Semantic Search | Pinecone | Weaviate | Chroma DB | FAISS | Vector Store | Vector Embeddings | Context Compression | AI Pipeline | Custom LLM | Finetuned Models | Model Evaluation | ML Model Deployment | HuggingFace | Model Distillation | Data Annotation | Active Learning | AI UX | AI Product | AI MVP | AI SaaS | SaaS Platform | AI Integration | Python AI | FastAPI Backend | Flask | Django | Node.js Backend | Express.js | Streamlit Apps | Gradio UI | React Frontend | Next.js App | Tailwind | Vite | TypeScript | UI/UX AI | MLOps | DevOps | Docker | Kubernetes | GCP | AWS | Azure AI | Cloud Functions | Cloud Run | EC2 | S3 | RDS | MongoDB | PostgreSQL | Redis | Supabase | Firebase | SQL | NoSQL | NLP Developer | CV Developer | AI for Healthcare | AI for Education | AI for Finance | AI for Legal | AI for Marketing | AI for HR | Real-Time AI | Chatbots for Customer Support | Custom API Integrations | Webhooks | AI Automations | Digital Workers | Intelligent Automation | AI Platform | Scalable Architecture | API Gateway | Microservices | Serverless | Full Stack AI | B2B SaaS | AI Tooling | AI Prototypes | AI POCs | AI for Startups | Early Stage AI | Data Pipelines | ETL Pipelines | Cloud AI | AI Infrastructure | GitHub Copilot | Cursor IDE | Claude Code | Model Monitoring | Explainable AI | AI Compliance | GDPR AI | Token Usage Optimization | Cost-Efficient AI | Multi-Agent Systems | Voice Agents | Audio AI | Whisper API | YouTube Transcript Analysis | Semantic Parsing | PDF Parsing | Document AI | OCR + NLP | Resume Parsing | CRM Automation | AI Scheduling | AI Forms | AI for E-Commerce | AI Chat for Websites | AI Landing Page | AI Email Writer | AI Content Generator | AI Content Calendar | GenAI for Business | GenAI for Sales | GenAI for Support | Generative AI Development | MVP Development | Rapid Prototyping | Custom Tool Development | AI App Builder | AI Workflow Builder | Internal Tooling | Low-code AI | High-load Platforms | Scalable Web Apps | Key Stats & Achievements 🏆 194+ successful projects completed on Upwork with global clients 💲 $5M+ earned on Upwork through high-impact full-stack and AI solutions ⏱ 55,121+ hours billed, proving long-term client trust and engagement 💼 600+ total projects delivered since 2000 across AI, web, and mobile 📚 100% of developers hold engineering degrees, expert-level

I bring creative solutions to your problems via Data Science, Simulation Modeling, and Optimization. I analyze your problem, identify best tools/methods for your case, and develop a software solution with a lean and clean design. All steps will be fully transparent to you. I hold an M.Sc. degree in Industrial Engineering from a top university in Istanbul, with a specialization in system simulation. Before freelancing, I worked on automotive R&D software tool development projects. 𝗠𝘆 𝘁𝗼𝗼𝗹𝗯𝗼𝘅 : ● Python packages: ◦ SimPy (Simulation) ◦ Google OR-Tools, PuLP (Operations Research, LP, MILP), DEAP (Genetic Algorithms) ◦ Numpy, Pandas, SciPy, OpenCV, Statsmodels (Numerical Methods) ◦ pm4py (Process Mining), ◦ Scikit-Learn, XGBoost, PyTorch (Machine Learning) ◦ PyQt6, PySide, Streamlit, Tkinter (GUI Development) ● Discrete-Event, Monte Carlo, Agent-Based, and System Dynamics Simulation ● Vensim, PySD, Jaamsim (open source alternative to Simio, FlexSim, Anylogic) ● C#, Java, Matlab, GNU Octave programming ● Design of Experiments, Six Sigma, Minitab, ANOVA, A/B Tests ● SQL, PostgreSQL, MongoDB, SQLAlchemy, Flask, FastAPI, Docker ● MS Project, Google Sheets, ClickUp (Project Scheduling) 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗱𝗼𝗺𝗮𝗶𝗻𝘀 (with work experience) : Business Simulation Product & Production Data Analytics Scheduling Predictive Maintenance Energy Systems Modeling Engine and Vehicle Data Analysis IoT & Diagnostics If you are in search of an expert in these fields, just put my name at the top of the list. I respond to your invite as soon as possible.

Hi, I’m Atakan 👋 I’m a Data Analyst, Virtual Assistant, and QA Specialist helping businesses stay organized, accurate, and efficient. With strong analytical skills and exceptional attention to detail, I deliver reliable support across data, admin tasks, and quality control. What I help with: Data Analysis & Cleaning Fast & Accurate Data Entry QA Testing & Error Detection Email, File & Task Management Research & Administrative Support I’m detail-oriented, efficient, and committed to delivering high-quality work every time. Let’s streamline your operations and keep your data and processes running flawlessly. 🚀

Senior Full Stack Engineer with 6+ years of production experience building SaaS platforms, web apps, and APIs across the .NET / Angular / React / Azure stack. Top Rated on Upwork with a 100% Job Success Score across 28+ contracts. I've also been expanding into Python (FastAPI / Flask) and applied AI/ML — adding LLM features, RAG, and data pipelines to existing products. It's important to me to build long-term relationships with clients, so I'm primarily looking for long-term projects. My skills include: ✔️ Back-end: .NET 8 / C#, ASP.NET Core MVC/MVVM, Web API, SignalR, Razor, WPF, LINQ ✔️ Front-end: Angular, React, TypeScript, JavaScript, jQuery, HTML5, CSS, Bootstrap, Tailwind ✔️ Python: FastAPI, Flask, Pandas, NumPy, scikit-learn ✔️ AI / ML: OpenAI API, LangChain, LLM integration, RAG basics, prompt engineering ✔️ Cloud: Microsoft Azure — App Service, Azure Functions, Azure SQL, Cosmos DB, Azure DevOps ✔️ ORM: Entity Framework Core, Dapper ✔️ Database: SQL Server, MongoDB, PostgreSQL, MySQL, Redis ✔️ Architecture: REST API design, microservices, real-time (SignalR / WebSockets), auth (OAuth / JWT), payment integration (Stripe) ✔️ Tooling: Visual Studio, VS Code, Git, Azure DevOps, Docker ✔️ Process: Agile, Scrum, Kanban Expertise: ✔️ Web Development — REST Web API, ASP.NET Core, Angular, React ✔️ Cloud & Backend — Azure App Service, Web Servicer, Functions, SQL, AKS, Entra ID ✔️ Python + AI Add-ons — Flask / FastAPI services, OpenAI / LangChain integration, light data pipelines Send a message with your goal in two sentences, or book a consultation and we'll scope it together.

I build AI agents, RAG chatbots, and automation systems that survive contact with real users, not demos that break the moment they leave the slide. That gap between "works in a demo" and "works in production" is why most of my clients come to me after something else fell apart. I'm Salah Eldin, an AI engineer with a 100% Job Success Score and Top Rated status on Upwork, 9 projects, 750+ hours, and systems that are still running for the people I built them for. What I do best: AI Agents & Automation, Custom agents and multi-agent systems (LangGraph, n8n) that take over repetitive work, with human-in-the-loop approval so the AI never acts on anything important without your sign-off. RAG Chatbots & Knowledge Systems, Assistants trained on your own documents that answer with citations instead of hallucinating, with strict data isolation so one user's data can never leak into another's. Voice AI & Integrations, Low-latency voice agents and clean API integrations with OpenAI, Claude, and Gemini. I work natively in Arabic and English, which matters for the MENA market. How I work: I obsess over the parts clients don't see, error handling, retries, the architecture that keeps your app responsive while the AI thinks. That's the difference between a system you trust and one you babysit. I'm also honest about fit, if I'm not the right person for your project, I'll tell you upfront. If you're adding AI to your product or replacing a slow manual process with something that runs on its own, send me a message with what you're working on. I'll give you my honest take before you commit to anything.

I build production data pipelines that scale. Python developer specializing in extracting, validating, and serving data for real products,not demos. What I've shipped: Karachi Property IQ: Live real-estate assistant. 800+ listings daily, ML pricing models (R²=0.90), Streamlit dashboard. Detects underpriced deals. KSE-25 Stock Dashboard: Real-time PSX data scraper + time-series forecasting. Live market analytics. Daraz Price Tracker: Scheduled scraping pipeline, price history, alerts. Handles anti-bot detection. Eunit: Hong Kong e-commerce data platform. CS-Cart integration, multi-language normalization, validation UI. Live in production. MathMate: K–Algebra 2 adaptive math platform. AI tutor (GPT), image generation (DALL-E), full-stack deployment. How I work: Web Scraping: Playwright, Scrapy, BeautifulSoup. Anti-bot handling, pagination, dynamic content. Output: CSV, Postgres, APIs. Machine Learning: LightGBM, XGBoost, scikit-learn. Regression, forecasting, feature engineering. I deliver dashboards you can use immediately. RAG & LLM: LangChain, Claude API, OpenAI. Document search, AI validation, structured extraction. Backend: FastAPI, scheduled tasks, webhooks, OAuth. Automation that replaces manual work. What I don't do: I don't build features on top of third-party products. I don't do design-heavy frontend work. I don't do mobile apps. How I work: Clear scope + timeline upfront. Daily updates. Code on GitHub, yours to keep. 30+ hrs/week. If you have a data, scraping, AI, or product data problem—message me with what you're trying to solve.

I spent years on manufacturing shop floors watching the same problem repeat itself disconnected spreadsheets, and manual logs nobody trusted by Friday. As a Mechanical Engineer and QMS Auditor, I audited those systems. Then I stopped just documenting the gaps and started closing them. That's how I ended up building operational software. 𝗪𝗵𝗮𝘁 𝗜 𝗕𝘂𝗶𝗹𝗱 ⚙️ Full ERP portals — purchase requisition → QC → dispatch 📋 Digital inspection systems — dynamic checkpoints... 📊 Production dashboards — real-time OEE, labor efficiency 🔧 Preventive maintenance trackers — auto-scheduled plans 📁 ISO 9001 QMS — SOPs, work instructions, BPMN maps 📗 Excel automation — VBA macros, dynamic dashboards... 𝗛𝗼𝘄 𝗜 𝗪𝗼𝗿𝗸 𝗗𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝘁𝗹𝘆 ✦ I start with your process, not a tool ✦ I build for longevity — still running clean two years later ✦ I bridge factory floor knowledge with technical builds ✦ Most Excel files I inherit are one formula away from disaster — I rebuild them bulletproof 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 Google Apps Script · HTML/CSS/JS · Excel VBA Power BI · Tableau · Python (NumPy, Pandas) Jotform · SolidWorks · AutoCAD 𝗖𝗿𝗲𝗱𝗲𝗻𝘁𝗶𝗮𝗹𝘀 🎓 Master's in Mechanical Engineering 🏅 Certified ISO 9001 Lead Auditor 📜 Professional Engineer — Pakistan Engineering Council ⭐ Top Rated · 100% Job Success Score If that's the situation you're in — just tell me what's broken.

Hi! I'm an expert backend developer. Python, Django, Flask, FastAPI, Node.js are my key skills. The work I care about is the stuff under the surface: APIs, databases, real-time systems, and lately, the infrastructure holding AI products together. Most of my backend work has been in FinTech and SaaS: insurance management, custom accounting software, behavioral finance. These tend to be the projects where the backend actually matters: real-time data, concurrent users, and zero tolerance for downtime. I've also worked across health, EdTech, and real estate. 𝗪𝗵𝗮𝘁 𝗜 𝗢𝗳𝗳𝗲𝗿: • Custom Python/Node solutions • API development and Integration • AI/ML Model Development (Supervised & Unsupervised Learning) • Natural Language Processing (NLP) and Computer Vision • AI-Powered Chatbots and Voice Agents • AI Automation and AI Agents • Data Analysis and Predictive Analytics • MLOps and Model Deployment using Docker, Kubernetes, or Cloud Platforms (AWS, GCP, Azure) 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: • 𝗣𝗿𝗼𝗴𝗿𝗮𝗺𝗺𝗶𝗻𝗴 𝗟𝗮𝗻𝗴𝘂𝗮𝗴𝗲𝘀: Python · Django · FastAPI · Flask · Node.js · Express.js · REST APIs · GraphQL · WebSockets • 𝗔𝗜/𝗠𝗟 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀: TensorFlow · PyTorch · Keras · Scikit-learn · Computer Vision · NLP • 𝗗𝗮𝘁𝗮 𝗛𝗮𝗻𝗱𝗹𝗶𝗻𝗴: Pandas, NumPy, Spark • 𝗔𝗣𝗜 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: FastAPI, Flask, Django REST Framework • 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: PostgreSQL · MySQL · MongoDB · Redis · Supabase · SQLite • 𝗖𝗹𝗼𝘂𝗱 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀: AWS SageMaker, Azure ML, GCP AI Platform • 𝗗𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁: Docker, Kubernetes, CI/CD Pipelines • Frontend (when needed): React · Angular · TypeScript 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲? • Proven track record of delivering AI/ML solutions that drive business growth • Strong problem-solving skills with a focus on data-driven decision-making • Expertise in building AI-powered chatbots, voice agents, and AI automation • Collaborative and results-oriented approach for building custom backends. • Effective communication and timely project delivery Feel free to reach out to discuss how I can add value to your project.

🏆 Top Rated Plus 🌟 100% Job Success Score - Top 1% of talent on Upwork I'm a Full-stack Python, Agentic AI and Automation Engineer with 10+ years. 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: Backend: Node.js, Python (FastAPI, Django, Flask), REST, GraphQL, async programming, microservices Full Stack Collaboration: React, Next.js, Vue.js with secure, Python-driven backends Databases: PostgreSQL, MySQL, MongoDB, Redis (optimized schemas, queries, and data modeling) AI/ML & Data: LLMs (OpenAI GPT, Whisper), NLP pipelines, TensorFlow, PyTorch, Pandas, NumPy Cloud & DevOps: AWS (Lambda, ECS, RDS, S3), GCP, Azure, Docker, Kubernetes, CI/CD automation You need a product that works – fast, stable, and built to scale. Something users want to use, and something your team won’t need to rebuild three months from now. 𝑨𝑰 𝑻𝒐𝒐𝒍𝒔 & 𝑭𝒓𝒂𝒎𝒆𝒘𝒐𝒓𝒌𝒔: GPT-4, OpenAI API, Crew AI, LangChain, LlamaIndex, Hugging face, AutoGen, LangGraph, Pinecone, Weaviate. 𝑨𝑰 & 𝑴𝑳 𝑪𝒂𝒑𝒂𝒃𝒊𝒍𝒊𝒕𝒊𝒆𝒔: Large Language Models (LLM), LLM Fine-Tuning, Prompt Engineering, Multi-Agent Systems, Natural Language Processing (NLP), AI Chatbots, Machine Learning Pipelines, Retrieval-Augmented Generation RAG, Generative AI. 𝑨𝒖𝒕𝒐𝒎𝒂𝒕𝒊𝒐𝒏 & 𝑰𝒏𝒕𝒆𝒈𝒓𝒂𝒕𝒊𝒐𝗻: Retrieval-Augmented Generation (RAG) Systems, Vector Databases, API Integrations, Workflow Automation, Docker/ Kubernetes, AWS, GCP. 𝑪𝒐𝒓𝒆 𝑺𝒑𝒆𝒄𝒊𝒂𝒍𝒕𝒊𝒆𝒔: AI Agents/Chatbots/Automations, Generative AI, building AI models, AI-powered apps, AI-powered Integrations, AI tests, Cloud orchestration. 𝗪𝗵𝗮𝘁 𝗜 𝗗𝗲𝗹𝗶𝘃𝗲𝗿: ✔️ Scalable REST/GraphQL APIs & microservices ✔️ Data pipelines & AI/ML-powered systems ✔️ Cloud-native architectures (AWS/GCP/Azure) ✔️ Secure, tested, and future-proof code (CI/CD) ✔️ MVP-to-enterprise scaling with clear communication 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: Python Developer | Django Expert | FastAPI Developer | Flask Developer | Backend Engineer | API Development | AI/ML Engineer | Chatbot Developer | NLP Specialist | React Developer | SaaS Architecture | Cloud & DevOps | Docker | AWS | Data Pipelines | LLMs | TensorFlow | PyTorch | Web Scraping