I have 9 years of experience in Python development, and my skills are listed below: - Web scrapers, bots, automation, web automation, scripting, API scripts, ETL; - Data extraction, data cleaning, data processing, data transformation; - Backend development, web apps with Flask, Django, MySQL; - Frontend coding with HTML, CSS, JS, React; - Covering UI with selenium tests.

I specialize in API development and web scraping using Python, with hands-on experience in popular frameworks such as Django, Django REST Framework, and Flask. I'm also proficient in key libraries like BeautifulSoup, requests, re (regex), and Selenium. In addition to Python, I have a solid background in front-end technologies including HTML, CSS, JavaScript, Vue.js, React.js, and TypeScript. I also have experience with tools like Docker and relational databases such as MySQL and PostgreSQL.

👨‍🍳 I turn raw data into clean, working backends. Like a good chef: the ingredients don't have to be perfect, the result does. 9 years. Zero dishes returned. 🍽️ Top Rated Plus on Upwork, top 3% globally WHAT YOU GET ▸ 9+ years of experience as Python Developer | AI Developer | Backend Developer ▸ 20+ delivered projects across AI SaaS, CRM systems, RAG platforms, legal tech, climate tech, real estate, healthcare, and marketplaces ▸ 5+ AI-powered RAG systems, LLM assistants, document processing pipelines, and OpenAI integrations built from idea validation to production launch ▸ 15+ scalable Python backends with Django, FastAPI, PostgreSQL, Docker, AWS, Stripe with clean architecture, secure APIs, production-ready delivery ACHIEVEMENTS | Client wins from Python AI & backend development ▸ 26-day ROI recovery · built a Recruiting SaaS with Python backend and automated web scraping pipelines that helped a recruitment agency launch faster ▸ 16x efficiency boost · built a custom web application for construction, cutting quoting time from 8 hours to 30 minutes ▸ #4 Product of the Day · delivered an AI Legal Assistant with RAG-powered document search, OpenAI integration, and AI agent workflows for a legal tech startup ▸ 5+ HIPAA‑compliant healthcare platforms · secure backend systems with role‑based access, API integrations, and patient‑provider workflow automation ▸ 10+ CRM & ERP systems · custom Python backends, dashboards, scalable automation, data scraping and reporting tools WHAT I CAN DO FOR YOU ▸ Custom Python backends with Django, FastAPI, or Flask · clean architecture, RESTful APIs, production readiness ▸ AI-powered RAG systems and LLM integration · LangChain, OpenAI API, vector databases, semantic search ▸ AI Legal Assistant · RAG, OpenAI, clause summarization ▸ AI Climate Policy Chatbot · semantic search, citations, hallucination checks ▸ AI‑powered visual search marketplace · image recognition, matching algorithms ▸ AI publishing platform · RAG, automated QA, versioning, observability ▸ AI document intelligence · PDF/DOCX parsing, structured extraction, LLM insights ▸ AI FinTech MVP · Python backend, API integrations, scalable SaaS ▸ Document processing pipelines · PDF parsing, OCR, data extraction, structured output ▸ Data scraping and automation · BeautifulSoup, Scrapy, Selenium, ETL pipelines, scheduled workflows ▸ SaaS platforms and MVPs · user roles, subscription billing, Stripe integration, scalable architecture ▸ Admin dashboards · role‑based access, analytics, reporting, data visualization ▸ AI agents and chatbots · intelligent assistants, conversational AI, automated decision-making ▸ Healthcare and compliance · HIPAA, SOC 2, GDPR-ready backend systems ▸ Real estate, marketplace, CRM · property tracking, user management, workflow automation ▸ PostgreSQL schema design and optimization · scalable database architecture ▸ API integrations · Stripe, OpenAI, Twilio, SendGrid, third‑party RESTful APIs ▸ Infrastructure · Docker, CI/CD, AWS (EC2, S3), Railway, Render ▸ Post‑launch support · maintenance, feature additions, technical guidance ▸ Full‑stack Python & web · React, JavaScript, HTML, CSS, Bootstrap, PHP/Laravel integrations CORE STACK ▸ Backend: Python, Django, FastAPI, Flask, PostgreSQL, Redis, Celery ▸ AI & LLM: OpenAI API, LangChain, FAISS, Pinecone, pgvector, Retrieval Augmented Generation, ▸ RAG pipelines, Vector Search, Semantic Search, Computer Vision (Clarifai) ▸ Data & Automation: BeautifulSoup, Scrapy, Selenium, pandas, ETL Pipelines, PDF/DOCX Parsing ▸ Infrastructure: Docker, AWS, CI/CD, GitHub Actions, Railway, Render ▸ Frontend: React, JavaScript, HTML, CSS, Bootstrap, Next.js As a Python and backend developer, I cover end‑to‑end delivery: architecture, APIs, databases, infrastructure, and AI logic. I work as a Python backend developer, AI developer, Full Stack Python developer, or Python web developer depending on the scope. For AI projects, I act as a Python AI developer, building RAG systems, LLM pipelines, document processing, and intelligent automation, with experience in machine learning and data science. My work also spans Deep Learning, Natural Language Processing, and AI agent development. I also work with PHP and Laravel when integration into existing systems is needed. My web scraping background supports analytics, lead generation, and market research. What sets me apart is product thinking. As a technical partner and software engineer, I define architecture, reduce complexity, and build user‑ready solutions, not just prototypes. My experience spans full stack developer, web developer, php developer, web scraping, machine learning, and data scientist roles, enabling effective cross‑functional collaboration across the entire product lifecycle. ✉︎ Looking for a python developer or backend developer to build or scale your backend? Reach out to me.

🌐 Web Development | 🔄 Automations | 🧩 API Integrations | 🛡️ Clean, Reliable & Maintainable Code | 📊 Data Processing | 🕸️ Web Scraping & Data Mining | Hi! I'm a Python Developer with 9+ years of experience and a PhD in Telecommunications Engineering, specializing in Python backend development, automation, and data pipelines. 👋 Whether you need a Python Full Stack Developer to ship a production-grade web app, a Python Developer AWS to deploy scalable microservices, a Python Full Stack Developer Flask expert to build modern backend-driven applications, or a Python AI Developer to wire up intelligent automations — I deliver clean, reliable, maintainable solutions that solve real problems. If you're also searching for a solid web developer, full-stack developer — I bring the same professional rigour to every project. 🌐 Web Development & Backend Engineering
Building modern, robust applications using Python (FastAPI, Sanic, BlackSheep, Flask, Django), with clean architecture and best practices. As a Python Full Stack Developer I also connect backends to React frontends, delivering full end-to-end products. • REST APIs, GraphQL, microservices architecture, and event-driven systems • Python Full Stack Developer Flask & Django apps — from MVPs to enterprise-scale • Clean architecture, SOLID principles, OOP, and maintainable codebases 🔄 Automating complex business processes using N8N, Make, and Python to eliminate manual work, reduce errors, and boost operational speed. • Clients routinely save 100+ hours/month after automation delivery • Broker commission calculation pipelines — 70% reduction in processing time • Python AI Developer integrations with OpenAI and LLM-powered workflow tools 🧩 API Integrations
Seamlessly connecting services and platforms through REST APIs, OAuth2, JWT, and custom integration solutions. Integrated 35+ third-party APIs into live production systems. • Stripe, PayPal, SendGrid, Twilio, Google Maps, Salesforce, and more • Keycloak, Kong Gateway, Google Apigee, Apache Mesos/Aurora • Healthcare, Fintech, Telecom, and SaaS platform integrations 🕸️ Extracting valuable data from any website using HTTP, Scrapy, BeautifulSoup, Selenium WebDriver, and custom crawlers — delivered clean and ready for analysis. • High-volume scraping pipelines with anti-detection and proxy rotation • Grain price dashboards with real-time market data feeds • Sentiment analysis of articles and reports for retail manufacturers 📊 Data Processing & ETL
Transforming, cleaning, and analyzing large datasets using Pandas, SQL, and NoSQL databases — with full pipeline automation from source to insight. • PostgreSQL, MySQL, MongoDB, Redis, SQLite, Amazon Aurora • 50–70% faster query response times on high-load production databases • 100% data integrity preserved on legacy system migrations 🛡️ Clean, Reliable & Maintainable Code
Following best coding practices, with deep knowledge of OOP, SOLID, unit testing, and CI/CD — code that teams can own long after delivery. • 83%+ unit test coverage on complex integrations • Docker, GitHub Actions, GitLab CI, Nginx — full DevOps lifecycle as Python Developer AWS • Passed all security audits with 100% compliance 🐍 Python Developer — Core Expertise As a Python Developer I build backend systems, automation pipelines, and data-driven applications that are engineered to last. My work as a Python Developer covers the full spectrum — from designing reliable REST APIs and microservices to building complex ETL workflows and integrating third-party platforms. Clients come to me as their Python Developer when they need more than working code: they need systems that are observable, maintainable, and ready to scale. Whether the project calls for a Python Full Stack Developer delivering end-to-end web applications, or a focused Python Developer AWS deploying cloud-native services, I bring the same production-grade mindset to every engagement. 🤖 Python AI Developer & Intelligent Automation A growing part of my work as a Python Developer involves building intelligent, automated systems that go beyond traditional scripting. As a Python AI Developer, I integrate LLMs, AI agents, and MCP (Model Context Protocol) into real backend workflows — not as experiments, but as production features with proper error handling, observability, and cost control. I work with tools like N8N, Make, and custom Python orchestration to automate high-volume business processes that previously required significant manual effort. This combination of deep Python Developer expertise and hands-on AI integration experience means I can design automation that is both technically sound and genuinely useful to the business. 🤝 𝙍𝙚𝙖𝙙𝙮 𝙩𝙤 𝙂𝙚𝙩 𝙎𝙩𝙖𝙧𝙩𝙚𝙙? Let's collaborate to bring your project to life. Whether you need a Python Developer, a Python Full Stack Developer, a web developer, a web scraping expert, or a Python Developer AWS — contact me today to discuss your project.

For the last 5 years, I have been providing the following services: ✅ Web App Backend development ✅ API development and integration ✅ Data Science/Machine Learning ✅ POC and MVP development ✅ Web automation and Scraping ✅ Scripting and Automation ✅ Bot development ✅ Deployement Working worldwide, I help customers from various business domains through coding, building a dev team, and filling expertise plus technological gaps. Here are the main industries: 🔸 Fintech 🔸 AI and machine learning 🔸 Lead Generation and campaigning 🔸 Document Processing My main tech stack: ☑️ Python ☑️ Frameworks/Modules: TensorFlow, PyTorch, HuggingFace, Keras, Sklearn, Scipy, Seaborn, matplotlib, pandas, numpy ☑️ Flask / FastAPI / Django for Web/ API Development ☑️ WebSocket: Real-time application development with Django Channels, FastAPI + WebSocket, Flask-Socketio, and Socket.IO integrations ☑️ Data Management: PostgreSQL, MySQL, MongoDB ☑️ Task Queues: Celery ☑️ Containerization: Docker ☑️ In-memory Data Store: Redis ☑️ Cloud Platforms: AWS, GCP ☑️ Frontend: HTML/CSS/JS + Reactjs, Nextjs Get in touch, invite me to your project, and let’s start cooperating!

Senior Python developer and team lead, 10+ years in Python. I design and ship production AI systems — agents, RAG pipelines, LLM integrations — on Django/DRF and FastAPI backends. I take on the architecture myself, and for larger scopes I bring in my team at Flexipy. Need AI that works in production rather than a demo? That's my core strength — agents that carry out multi-step work, RAG over your own data, and the Django/FastAPI backends that make them reliable. Recent builds include an AI telephonic agent platform on Python/Azure and an SMS-to-AI assistant serving users with no internet access. I also own backend-heavy work end to end — database and API design, integrations, deployment — and help teams fix slow, messy, or hard-to-maintain Python/Django codebases by restructuring logic, stabilizing APIs, and cutting technical debt. I deliver end-to-end SaaS MVPs too: admin flows, auth, billing, deployment. 𝗪𝗵𝗮𝘁 𝗜 𝗯𝘂𝗶𝗹𝗱: 🟢 AI & LLM features — agents, RAG, OpenAI, Claude, LangChain, LangGraph 🟢 Multi-agent systems and workflow automation (Celery, Redis) 🟢 SaaS backends and MVPs (Django / DRF, FastAPI) 🟢 REST APIs, webhooks, and third-party integrations 🟢 Admin panels, authentication, roles & permissions 🟢 Refactoring & scaling legacy Python / Django systems 🟢 Docker-based deployment, AWS, and CI/CD 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗵𝗶𝗿𝗲 𝗺𝗲 𝘁𝗼: 🟢 Add AI / LLM functionality to an existing platform 🟢 Build an AI-first product — agents, assistants, RAG over their own data 🟢 Launch the backend for a new SaaS product 🟢 Stabilize and scale an existing Django application 🟢 Build APIs and integrations that scale reliably 🟢 Automate manual business workflows 🟢 Get senior-level execution without unnecessary complexity 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲: Over 10+ years I've shipped products across SaaS, fintech, healthcare, education, and internal business tools. I build modular, well-structured systems that stay easy to extend as your product grows — especially strong in API-heavy platforms, async workflows, and third-party integrations. 𝗖𝗼𝗿𝗲 𝘀𝘁𝗮𝗰𝗸: Python · Django · Django REST Framework (DRF) · FastAPI · PostgreSQL · MySQL · Celery · Redis · Docker · AWS · GitLab CI/CD · REST APIs · Webhooks · Stripe · Twilio · OpenAI · Claude · LangChain · LangGraph · React 𝗛𝗼𝘄 𝘄𝗲 𝘀𝘁𝗮𝗿𝘁: For projects where the scope needs validation, I offer a paid discovery phase — a practical way to align on architecture, priorities, and a delivery plan before a larger engagement. You leave with a clear roadmap, fixed next steps, and no guesswork. If you need a solid Python/Django backend, clean REST APIs, AI integrations, and senior-level execution with clear communication, send me a message — I'll reply with honest feedback on your project.

Python Developer & Web Scraping Specialist 🐍 I am a Python Developer with freelance experience since 2022, focused on building automation tools, web scraping systems, and backend solutions. I specialize in extracting, processing, and structuring data from the web, as well as developing scalable scripts and services that help businesses automate workflows and collect valuable data efficiently. My work combines clean, maintainable Python code with reliable data pipelines and automation systems, allowing clients to gather structured information, monitor websites, and integrate external services through APIs. 🚀 Core Skills & Technologies • Python, HTML, CSS • FastAPI • Telethon, Aiogram • SQL, PostgreSQL, MongoDB • BeautifulSoup (BS4), Selenium 💻 My Expertise Includes 🏆 Web Scraping & Data Extraction: Selenium, Playwright, BeautifulSoup, Scrapy, Requests 🏆 API & Data Parsing: REST APIs, GraphQL, JSON, XML 🏆 Headless Browsers & Automation: Puppeteer, undetected-chromedriver, curl_cffi 🏆 Scalable Scraping Systems: Async scraping, distributed crawlers, Scrapy-Cluster 🏆 Proxy & Session Management: Residential proxies, datacenter proxies, rotating IPs, session handling 🏆 Data Storage & Processing: PostgreSQL, MongoDB, Redis, Pandas, Parquet 🏆 Task Scheduling & Queues: Celery, RabbitMQ, Apache Airflow 🏆 Cloud & Deployment: AWS Lambda, Google Cloud Platform, Docker, Kubernetes 🏆 Security & Anti-Detection: Browser spoofing, AI-powered detection avoidance 🏆 DevOps & CI/CD: Git, GitHub Actions, Jenkins, Azure DevOps I focus on building high-performance, scalable, and reliable solutions for tasks such as web scraping, automation, API integrations, and backend services. Whether you need data extraction, automated workflows, or custom Python tools, I aim to deliver clean and efficient solutions tailored to your project needs. I continuously improve my skills and stay up to date with new technologies to ensure stable, efficient, and production-ready systems for every project. 🚀

Need clean, reliable data from the web — delivered fast and ready to use? I'm a Python specialist with 5+ years of hands-on experience in web scraping, automation, and data extraction. I've worked with clients across e-commerce, real estate, finance, and lead generation — building scrapers and bots that handle everything from simple one-time extractions to large-scale, scheduled pipelines running millions of records. 🔧 Web Scraping & Automation (My Core Strength): · Custom web scrapers — e-commerce, real estate, Google, social media · Browser automation — Selenium, Playwright, dynamic JS-heavy sites · Scheduled & recurring data pipelines — auto-run, auto-deliver · File downloaders — images, PDFs, MP3s at scale · Anti-bot bypass — rotating proxies, headers, CAPTCHA handling · Output in any format — CSV, Excel, JSON, XML, Google Sheets 🐍 Python & Backend Development: · Django & Django REST Framework — web apps and APIs · Flask — lightweight APIs and automation services · Database design & management — PostgreSQL, MySQL, SQLite, Snowflake · Custom automation scripts — eliminate repetitive manual work What makes me different: I don't just write code — I ask the right questions upfront, deliver clean and well-commented scripts, and make sure the data you get is actually usable. No surprises, no delays. 📩 Message me with your project details and I'll respond within a few hours with a clear plan and timeline.

🏆 Python Developer with 19,000+ hours delivering solutions | 98% Job Success Score | 24+ projects completed on time 💬 Client Reviews Python developer: ⭐⭐⭐⭐⭐ "Sergey did an excellent job on this project. The results were exactly as I needed them. He understood the requirements and how to implement the project very well. I have since hired him again for further work." ⭐⭐⭐⭐⭐ "This was a very complex problem. Sergy understood the project very well and did an excellent job developing a solution that we use daily now." 🎯 What I Bring as a Python Developer: • 9+ years of experience building scalable backends and microservices with Python, FastAPI, Django, and Python Full Stack Developer Flask • Expertise in deploying production-ready applications on AWS, Heroku, Fly.io, DigitalOcean, and VPS with fully automated CI/CD pipelines • Proficient in AI integrations, data pipelines, predictive analytics, and designing microservices for complex systems • Proven track record in leading teams, Python web development, and building solutions from the ground up 🐍 Python Developer Tech Stack: • Backend Frameworks & Languages: Python, FastAPI, Django, Flask, Django Rest Framework, Celery, GraphQL, REST APIs, Microservices Architecture • Databases: PostgreSQL, PostGIS, MySQL, MongoDB, MS SQL, Redis, SQLite, Amazon Aurora • Cloud & DevOps: Docker, AWS, Azure, Heroku, Fly.io, DigitalOcean, VPS, CI/CD pipelines, GitHub Actions, GitLab CI, Ansible, Nginx, python aws • Frontend Frameworks & Full-Stack: React, JavaScript, TypeScript, jQuery, HTML, CSS, Bootstrap, Highcharts • AI & Data: Machine Learning, NLP, Sentiment Analysis, Predictive Analytics, Data Pipelines, PyTest for TDD, OCR, Optical Character Recognition, Microsoft Face recognition, Azure AI Face service, machine learning python and python data science • Tools & Platforms: Keycloak, OpenShift, Kong Gateway, Apache Mesos, Apache Aurora, Postman, Figma, Google Apigee API, OCR (Optical Character Recognition) with world-class Google Cloud AI 🏗️ Projects I’ve Led as a Python Developer aws: • Healthcare: Built family appointment systems, DNA test purchasing platforms, and patient portals integrated with insurers • Healthcare: Developed and scaled high-throughput RESTful APIs in python web development using Flask and Python microservices • Agritech: Created a grain price dashboard with real-time market data for traders • Telecom: Developed a cell tower mapping platform as a Python full stack developer with geocoding functionality • Product Companies: Engineered AI-powered tools for code conversion as a python django • Retail & Healthcare: Delivered an AI-driven translation service for a medical corporation • Retail: Developed AI-powered tools for sentiment analysis of reports and articles for a manufacturer with python web scraping • Fintech: Built a secure web wallet with multi-currency exchange, blockchain integration, as python code review • Automotive: Designed predictive models for sales forecasting and python ai developer 🏢 Industries for the Python developer: I have successfully delivered projects across Healthcare, Agritech, Telecom, Retail, Fintech, Automotive, and B2B domains 🔧 Roles I Commonly Take On: • AI-Focused Python Developer creating workflow automation using OpenAI and AI integrations • Python Full Stack Developer flask helping high-growth startups scale reliably and efficiently • Python AI developer specializing in building robust, scalable APIs with Python • DevOps Python developer AWS implementing CI/CD pipelines for Django, Flask, and FastAPI applications • Python Django delivering end-to-end solutions in Django and React • Python Full Stack Developer Flask • Machine Learning Python • Python web scraping 📊 Key Achievements: • Developed automation scripts that saved clients 100+ hours/month in manual work • Engineered systems supporting over 30,000 daily active users with zero downtime at launch • Orchestrated 4,000+ concurrent translation tasks • Achieved over 83% unit test coverage on complex integrations • Migrated legacy systems with 100% data integrity preserved • Integrated 35+ third-party APIs seamlessly into production systems • Automated broker commission calculations, reducing processing time by 70% • Passed all security audits with 100% compliance • Optimized high-load database queries, cutting response times by 50–70% 🤝 I’m Open To: • Rapid MVP development to validate business ideas and go to market faster • API design development • Python full stack developer roles and React frontend • AI/ML solutions for automation, analytics, and workflow efficiency • Legacy system modernization pyton developer to modern tech stacks You can find me as a python full stack developer or web developer or a php developer or a python web scraping developer 🚀 Time to move forward? Let’s connect to talk through: • Where your project stands today • What success looks like for you • How can I help you get there, as your Python developer partner

Hi! I am a Python developer with over 4 years of experience, specializing in building robust backend systems and automated trading bots. I have extensive experience in: Python Backend Systems: Developing APIs and backend applications using FastAPI, Flask, Falcon, with SQLAlchemy for database integration. Trading Bots & Automation: Built multiple fully automated trading bots for stocks, futures, and options, including data handling, logging, alerts, and integration with Interactive Brokers. Data Analysis & Visualization: Preprocessing, statistical analysis, and visualization using Jupyter, Pandas, Seaborn, and Plotly. Web Scraping & API Integration: Experienced with BeautifulSoup, Selenium, and building/consuming RESTful APIs. I am committed to delivering high-quality work on time and exceeding expectations. Let’s collaborate to bring your Python projects to life!