Python Full Stack Developer who steps in where products stall - fixing broken ownership, tightening architecture, and turning messy delivery into a system that actually ships 10+ years in web product development, I now lead UASOFTDEV as CTO & Co-Founder, building and scaling teams of senior Ukrainian engineers who can integrate fast and take responsibility from day one. If your product is slowed by handoff gaps, weak architecture, or fragmented ownership, I help turn it into a delivery process with strong technical control My core role is a python developer for backend-heavy products, with additional experience in C# .NET when projects require enterprise-grade backend logic. When the scope expands, I work as a full stack developer with ownership, or as a web developer focused on scalable execution. 📌 What I typically cover Web and Mobile Development backed by 10+ years of product work, supported by a python full stack developer approach when APIs and UI must evolve together Full-Stack Development aligned into 1 clear delivery flow, shaped through python full stack thinking for faster releases and fewer handoff gaps E-commerce Web Development across 3 core layers - business logic, integrations, and user flows - delivered with full stack python experience, plus Web Design with HTML5, CSS and CSS 3 API development and Integration for internal platforms and 3rd-party systems, handled in a full stack developer python role when architecture must stay practical Data Scraping, Python Script automation, SQL workflows, PostgreSQL, MongoDB and MySQL support for reporting and internal tools ⚙️ My capability set covers React with JavaScript, Next.js, Nest.js and TypeScript, plus Vue.js and Angular. On the backend, I work with Node.js, laravel, python, Django, Flask, .NET, C++, Go, Ruby on Rails, Java and PHP. Mobile and cloud delivery includes iOS, Android, flutter, React Native, AWS, Azure, GCP, Docker, Kubernetes, and openstack. I also support CMS and platform work through wordpress, Drupal, Symfony, Magento and Shopify. 🛠️ Delivery across product layers Lean API products often benefit from a python full stack developer flask setup User-facing systems need a full stack web developer mindset when flow affects adoption Interface-heavy platforms grow faster with a full stack developer react profile Cross-layer execution works well in a full stack developer react python environment System reliability improves early with a backend python developer focus 🤖 I build AI features for real workflows, not for demo value alone. In that context, I work as a python ai developer on assistants, automation and internal tools. My python ai work is strongest where adoption matters, and clients also bring me in as an ai developer or ai software developer when implementation must connect product, backend, and rollout. 🧠 AI, frontend and product execution ✔️Practical ai machine learning features tied to support, search, and operations ✔️Applied machine learning developer work when smart functionality must fit an existing product ✔️Business-facing machine learning integrations designed for measurable value ✔️Custom chatbot systems built with react python flows and fastapi services ✔️Scalable UI delivery as a react developer with clean html front end execution and app design ☁️ I stay close to architecture because strong delivery depends on clear ownership. That is why I regularly handle back end development, step in as a backend developer when decisions affect release quality, and support python devops workflows across cloud and deployment planning. 🔧 Collaboration and adjacent exposure In a startup, delivery often means working beside a data scientist, then translating that work with a product manager into usable features. Release quality improves when a qa analyst joins early, especially in products shaped by compliance. Some founders also involve me as a startup consultant before code begins. ✔️Broader platform exposure includes sharepoint workflows, material ui dashboards, payment gateway implementation ✔️Cross-team delivery has also touched full stack java environments and adjacent java devops processes. ✔️Finance-related work has included trading python flows, algorithmic trading logic, binance integrations, and tools built for a trader. ✔️Adjacent product contexts have involved data entry operations, journalist workflow support, technical resume writing solutions, dall-e use cases, prototype work around crypto bot ideas, and tools requested by gaming developers. ✔️Growth-focused engagements may also involve a seo specialist, a practical it consultant, or teams building in marketing saas. 🌍 My domain expertise includes AI Startups, Data Analytics, Healthcare, Fintech, E-commerce agencies, IT Consulting/Softdev companies, Real Estate, Non-Profit, Blockchain and Gambling 🤝 If you need senior technical ownership Python Full Stack Developer, fast ramp-up and delivery that stays aligned with business goals, let’s talk.

𝑪𝒍𝒊𝒆𝒏𝒕: 𝒘𝒆𝒆𝒌𝒍𝒚 𝑻𝒓𝒆𝒍𝒍𝒐 𝒄𝒉𝒆𝒄𝒌-𝒊𝒏𝒔? 𝑴𝒆: 𝒇𝒖𝒏𝒄𝒕𝒊𝒐𝒏𝒂𝒍 𝒎𝒐𝒅𝒖𝒍𝒆𝒔 𝒆𝒗𝒆𝒓𝒚 1-2 𝒅𝒂𝒚𝒔 😏 🏆 Top Rated Plus Full Stack Developer ✅ 100% Job Success 🚀 200+ projects in 20+ years ⚡ Page loads under 2 sec at 5 - 10M monthly users I provide Full Stack Developer and Node.js Backend Developer work for platforms that cannot go down. Why hire my Node.js Backend Developer (s): - production SaaS, APIs and platforms owned by one Node.js Backend Developer and SaaS Developer on 3 - 10+ year retainers - Node.js Backend Developer, Full Stack Developer and SaaS Developer in one pair of hands My Node.js Backend Developer designs services, REST and GraphQL APIs, queues and event pipelines. My back end developer Node.js practice runs on databases of 100M+ user records. Typical Node.js Backend Developer engagements: multi-tenant SaaS APIs, real-time platforms, data pipelines, AI-backed services. Core Node.js Backend Developer stack: Node.js, NestJS, ExpressJS, TypeScript, PostgreSQL, Redis, Elasticsearch, AWS, GCP, Heroku, Docker, Kubernetes. My Full Stack Developer owns systems end-to-end - one Full Stack Developer handling Node.js services, React frontends, data models and infra. It replaces fragmented setups where a website developer, web developer and front end specialist were stitched together. Adjacent angles: full stack developer SaaS for B2B platforms, Python full stack developer pairings for data and AI, full stack developer AI integrations on a Full Stack Developer codebase, full stack developer React work for SaaS dashboards, full stack developer Shopify extensions, full stack web developer rebuilds of legacy SPAs, full stack AI SaaS developer engagements shipping LLM features. My SaaS Developer work helps founders ship multi-tenant SaaS and B2B platforms. A SaaS Developer engagement covers auth and RBAC, Stripe billing, observability, anti-abuse and event tracking for SaaS marketing. I have shipped a Webflow developer SaaS pairing, a B2B SaaS booking system developer engagement, a UI UX designer SaaS pipeline, a SaaS explainer video flow and a SaaS sales console wired into the SaaS Developer backend. A Python developer track owns scraping, ETL and AI workflows. Python NodeJS migrations land in my Node.js Backend Developer practice when consolidating dual stacks. Flutter Node.js and Vue.js Node.js setups join the Node.js Backend Developer core when mobile or admin SPAs need it. A React developer pairing handles SaaS dashboards on top of the Node.js Backend Developer API. A WordPress developer or Shopify developer hand-off covers CMS migrations onto a Node.js Backend Developer core. A mobile app developer pairing extends the Node.js Backend Developer SaaS into iOS and Android. As CEO I oversee every Node.js Backend Developer engagement - I stay close to discovery with founders, match the right Node.js Backend Developer engineers and answer for delivery. My Node.js Backend Developer engineers own the code. Clients hire me for Node.js Backend Developer work when they need: - a Node.js Backend Developer who owns architecture, APIs and scaling - Full Stack Developer delivery replacing 3 - 5 contractors - a SaaS Developer fluent in multi-tenancy, auth, billing and RBAC - a software developer practice with CEO-level budget discipline Recent Node.js Backend Developer and SaaS Developer work I shipped: - Built a flagship Node.js Backend Developer and SaaS Developer cybersecurity SaaS on NestJS, PostgreSQL and Redis, handling 170M+ requests a week at 500 RPS peaks for 1M+ MAU and surviving 50K users a minute during national TV spikes. - Shipped a device verification SaaS - one Node.js Backend Developer codebase powering web, Telegram bot and Developer API - 4K+ DAU, 15K checks a day, 1M+ lifetime, 80%+ via API, user base nearly doubled in 2025. - Rebuilt a Node.js Backend Developer e-commerce data pipeline that dedupes 50M+ products and keeps search under a second for 300 - 500K daily users, cutting cloud spend 9x ($10K a month). - Scaled a multi-currency voting SaaS - a Full Stack Developer and SaaS Developer build - to 2M+ users in 10 countries with WebSocket vote locking, 5,000 users online daily, $2.5M+ revenue and $300K+ paid to winners. - Ran a Node.js Backend Developer ticket automation platform keeping 50 - 500 parallel bots per event on a 3 - 5 minute order cycle with 100K queued orders; the same Node.js Backend Developer spine reused for day trading dashboards and a stock trading app analytics layer. Clients search by role, and the same Node.js Backend Developer and SaaS Developer fields all of them - an API Developer, a REST API Developer or a Backend Engineer, a NestJS Developer or NextJS Developer, React Node work, and Software Engineer, Full Stack Software Engineer or Full Stack Software Developer profiles. Need a Node.js Backend Developer who delivers Full Stack Developer and SaaS Developer work on time and stays long-term - let's talk.

👨‍🍳 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.

𝗜 𝘀𝗵𝗶𝗽 𝗔𝗜 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 𝘁𝗵𝗮𝘁 𝘄𝗼𝗿𝗸 𝘂𝗻𝗱𝗲𝗿 𝗿𝗲𝗮𝗹 𝗹𝗼𝗮𝗱. I'm Tilek - AI Developer, Python Developer, Machine Learning Developer, Full Stack Developer, Web Developer, Data Scientist. 15+ years shipping Artificial Intelligence, Python, Node.js, React, Next.js, Java for Scale AI, Hitachi Energy, Fortune. 50+ Web Application deployments. 10M+ API calls daily. 100+ RESTful API and public API shipped. 99.9% uptime on Amazon Web Services. Machine Learning, Computer Vision at scale. AI Developer, 50+ AI Development projects: production Artificial Intelligence with Python, PostgreSQL, Amazon Web Services. AI Development covers RAG, LLM orchestration, Computer Vision, Automation-ready RESTful API. AI Development and Artificial Intelligence inside real products. Python Developer, 15+ years: Python backend with Django, Flask, FastAPI. RESTful API design, public API contracts, API Integration, PostgreSQL, Amazon Web Services. Python powers AI Development, Web Scraping, Machine Learning, Data Analyst dashboards. Machine Learning Developer, 30+ pipelines: Python, TensorFlow, PyTorch, MLflow. Feature engineering, Computer Vision, MLOps on Amazon Web Services. Machine Learning API for Artificial Intelligence products. Data Scientist, Data Analyst, 25+ engagements: Python and PostgreSQL for Data Scientist Machine Learning, Data Analyst dashboards, Computer Vision, Amazon Web Services with public API. AI Agent Developer, 25+ AI Agent Development systems: LangChain, LangGraph, MCP. AI Agent Development covers tool calling, multi-agent orchestration, error handling. AI Agent Development in Python and Node.js, wrapped as Automation and RESTful API. AI Agent Development inside Web Application products. AI Chatbot Developer, 300+ chats/day: RAG chatbots with Python, Node.js, TypeScript, API Integration. WhatsApp, Telegram, HTML5 widgets, HTML5 landing pages, CRM API Integration. Node.js Developer, 20+ Node.js services: Node.js APIs with TypeScript, JavaScript, Java, PostgreSQL, public API, RESTful API, API Integration. Node.js across React, Next.js, Web Application. Node.js for AI Agent Development. Full Stack Developer, Web Developer, 40+ Web Application projects: Web Development with React, Next.js, Node.js, Python, JavaScript, TypeScript, HTML5, Java. Full Stack Developer stack covers Web Application UX, HTML5, JavaScript, TypeScript API clients. Web Development for AI Development products. RAG Developer, LLM Developer: retrieval with pgvector, Pinecone, semantic search. Embeddings, hybrid search, reranking wrapped as Automation-ready RESTful API on Amazon Web Services. Public API for Artificial Intelligence retrieval. Generative AI Developer, Python AI Developer: OpenAI API, Anthropic Claude API, open-source LLM integrations inside Python and Node.js Web Application. AI Development inside legacy systems. Automation Engineer, 90%+ manual reduction: Automation with Python, JavaScript, API Integration, Node.js, PostgreSQL. Web Scraping, Web Scraping pipelines, document Automation, workflow Automation across Web Development. PHP Developer, 10+ PHP modernization: legacy PHP bridged to Python and Node.js via RESTful API. PHP Developer migration, PHP CMS integrations, PHP public API inside Web Application ecosystems. Frontend Developer, 30+ React and Next.js: React, Next.js, JavaScript, TypeScript, HTML5. Web Development with public API, internal API, RESTful API. Web Development for AI Agent Development products. INDUSTRY IMPACT AI SaaS Platform, RAG Knowledge Base, Web Application - 10,000+ users, 99.9% uptime on Amazon Web Services with PostgreSQL, Node.js, RESTful API, Next.js. Document Automation, OCR AI, Computer Vision - 2K+ documents/day with Python, Machine Learning, API Integration. Ecommerce Chatbot, WhatsApp Automation, Web Scraping - 300+ chats/day with Node.js, Python, JavaScript, API, API Integration, HTML5 widgets. Healthcare AI, FinTech Web Application, EdTech - Artificial Intelligence, Machine Learning with PostgreSQL, RESTful API, Web Development on React, Next.js, TypeScript. TECHNICAL STACK Python | Node.js | TypeScript | JavaScript | Java | React | Next.js | HTML5 | PostgreSQL | RESTful API | API | API Integration | Web Development | Web Application | Machine Learning | Artificial Intelligence | Computer Vision | AI Development | AI Agent Development | Automation | Web Scraping | Amazon Web Services | PHP HAVE A COMPLEX AI, PYTHON, OR AUTOMATION PROBLEM? CONTACT ME.

👋 Hi there, I'm Maksym! As an expert Backend Developer and full stack developer, I bring 9+ years of commercial experience in software engineering, specializing in highly scalable, enterprise-grade backend development. Whether you are launching an intelligent ai backend, building a high-traffic platform, or looking to implement a robust backend nodejs architecture, I am the dedicated web developer and technical partner to help your company scale. My work as a Backend Developer strictly follows ISO 9001 and ISO 27001 security standards, ensuring enterprise-level reliability, data protection, and compliance from day one. With 180+ successful projects and 20,000+ engineering hours, I operate as a lead Backend Developer and python developer. I help businesses automate workflows, optimize cloud performance, and scale digital products utilizing node.js and modern cloud technologies. 🏆 Key Solutions & Results: – Scalable Engineering: 9+ years of experience as a Backend Developer building enterprise SaaS platforms, marketplaces, and AI-driven applications. – Proven Track Record: 180+ high-performance projects delivered across eCommerce, healthcare, fintech, and enterprise systems as a top-tier web developer. – Deep Expertise: 20,000+ engineering hours serving as a dedicated full stack developer and backend architecture specialist. – Global Delivery: Flawless execution across 40+ countries (including the US, UK, Western Europe, and Australia), delivering resilient backend development solutions. – AI-Driven Velocity: Product delivery speed increased by 60-70% using advanced, AI-assisted engineering workflows. – Database Optimization: Up to 60% performance improvement across any backend nodejs or Python ecosystem. – Infrastructure Efficiency: Cloud improvements engineered by an expert Backend Developer, enabling 45% more concurrent users with significantly reduced AWS costs. 📌 Core Specializations: 🤖 AI Systems & Automation • Custom LLM/RAG architectures and AI chatbots built by an expert python developer and Backend Developer. • Efficiency optimization and automated pipelines for your ai backend to cut manual operational costs by up to 70%. 💻 Custom Web Development • Rapid, AI-first MVP and SaaS platforms (React, node.js, NestJS) delivered by a skilled full stack developer. • Secure, ISO-compliant application architecture designed for modern, high-load backend development. ☁️ Backend Architecture & Cloud Infrastructure • High-performance AWS/Docker microservices built for complex, high-traffic ecosystems by a senior Backend Developer. • Database and query speed optimization (up to 60% improvements) managed by an experienced web developer. 📱 Mobile & Cross-Platform Syncing • React Native & Flutter apps seamlessly synced with your core cloud infrastructure. • Reduced latency via optimized backend nodejs pipelines and secure, AI-powered payment gateways. ✅ Why Work With Me? ✅ 60-70% faster delivery via AI-assisted engineering workflows. ✅ ISO 9001 & 27001 compliant development and security standards. ✅ 30% lower server costs optimized by an expert Backend Developer and node.js specialist. ✅ Advanced AI integration (GPT, Claude, LangChain) handled smoothly by an experienced full stack developer. ✅ 2-3 month MVP delivery to get your product to market and scaling quickly. Looking for a reliable Backend Developer, full stack developer, or python developer who can design scalable systems, build secure backend development architecture, and turn your ideas into production-ready products? Let’s connect! ☎️ Last updated: 14.08.2026

I build systems that scale with your business because I care about two things equally, the quality of code and the outcome it produces. As a Full Stack Developer and AI Integration developer with 11+ years of experience I have learned that clean architecture, efficient code and solid engineering decisions are what separate software that grows a business from software that slows it down. This is Zain, a Full Stack Developer, AI Integration developer and Backend Developer specializing in AI-powered SaaS platforms, MVPs and backend systems that go live, handle real users and keep running. My work covers everything from database architecture and API design to React and Next.js frontends, AI integration into production backends and deployment on AWS. I lead senior engineering team at Innovation Insight. Every project is built for production from day one. WHAT I HAVE BUILT Vonza — SaaS platform, $70K+ monthly recurring revenue As lead Full Stack Developer I built and maintain the entire backend architecture including API design, PostgreSQL database, Stripe Connect billing, e-commerce logic, CRM and AI-powered features. React and Next.js on the frontend. Five-plus years in production. Thousands of paying customers. Still growing. EdgeOCR — AI Integration for enterprise document processing As AI Integration developer and Full Stack Developer I built the AWS Bedrock AI processing pipeline, multi-tenant data isolation and usage-based Stripe billing. Node.js backend, Next.js frontend, AWS infrastructure. Live handling enterprise document workloads daily. Patrol6 — AI Integration for security platform As AI Integration developer and Backend Developer I built real-time video analysis with Google Vertex AI, GPS tracking and AWS IoT Core device management. Live processing video streams in the field every day. GovDoc.AI — AI Integration for government contracting intelligence Built RAG pipelines using AWS Bedrock and Cohere embeddings as AI Integration developer and Full Stack Developer. Reduces hours of manual RFP and SOW review to seconds. React frontend, Node.js backend, Next.js, AWS infrastructure. Live serving active government contractors. Every one of these is live, serving real users, handling real money. WHAT I HELP YOU BUILD AI-Powered SaaS Platforms and MVPs If you have a product idea that needs AI Integration I help you define the MVP scope, plan the AI architecture and build a scalable SaaS platform ready for real users and long-term growth. As a Full Stack Developer and AI Integration developer I handle everything from database schema and AI pipeline design to React frontend and AWS deployment. I have built OpenAI integrations, AWS Bedrock RAG pipelines and real-time AI features inside production SaaS products. Backend Systems, APIs and AI Integration As a Backend Developer, Node.js Developer and AI Integration developer I build Node.js and NestJS backend systems handling business logic, authentication, third-party integrations and databases. REST and GraphQL APIs built to scale. When a project requires AI functionality I integrate it at the backend level as a production-grade, cost-controlled and observable AI Integration component. Not an experimental demo. A production AI system built to run reliably at scale. AI Integration Services I deliver the following as an AI Integration developer and Full Stack Developer: ✅ OpenAI and GPT-4 integration into existing SaaS platforms and backend systems ✅ AWS Bedrock setup and RAG pipeline development for document intelligence ✅ Google Vertex AI integration for real-time data and video analysis ✅ LLM integration and prompt engineering for production AI applications ✅ AI cost management, token optimization and usage monitoring React and Next.js Frontend Development As a React Developer I build fast modern product interfaces for SaaS dashboards, admin portals and marketplaces. Next.js for server-side rendering and full stack React applications. Scalable component architecture built to grow with your product. MY STACK • Frontend: React, Next.js, TypeScript   • Backend: Node.js, NestJS, Python   • Mobile: React Native (iOS and Android)   • Database: PostgreSQL, MongoDB, Redis   • APIs: REST, GraphQL   • AI Integration: OpenAI, AWS Bedrock, Google Vertex AI, Cohere, LLM integration, RAG pipelines   • Infrastructre: AWS, Docker, Kubernetes, CI/CD pipelines WHO I WORK WITH I work best with founders, product teams and technical leads who need a Full Stack Developer and AI Integration developer who can own a project end to end. If you are building an AI-powered SaaS product or need an AI Integration developer, send me a message.

🏆 𝗦𝗲𝗻𝗶𝗼𝗿 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 | 💲𝟳𝟬𝗞+ 𝗘𝗮𝗿𝗻𝗲𝗱 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 | 𝟭𝟯+ 𝗬𝗲𝗮𝗿𝘀 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 | 𝗔𝗜 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 I help startups, SaaS companies, and growing businesses automate manual processes and integrate AI into their existing products and workflows. From customer support and internal operations to document processing, search, e-commerce, and content automation, I build 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻-𝗿𝗲𝗮𝗱𝘆 𝗔𝗜 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 that solve real business problems and reduce manual work. 𝗪𝗵𝗮𝘁 𝗜 𝗗𝗼 🔹 𝗔𝗜 𝗖𝘂𝘀𝘁𝗼𝗺𝗲𝗿 𝗦𝘂𝗽𝗽𝗼𝗿𝘁 & 𝗦𝗮𝗹𝗲𝘀 AI chatbots for websites, Telegram, Discord, and WhatsApp that answer customer questions, provide support, qualify leads, and automate routine conversations. 🔹 𝗔𝗜 𝗦𝗵𝗼𝗽𝗽𝗶𝗻𝗴 & 𝗣𝗿𝗼𝗱𝘂𝗰𝘁 𝗦𝗲𝗮𝗿𝗰𝗵 AI shopping consultants and product search that help customers find the right products, compare options, and discover products using natural language. 🔹 𝗔𝗜 𝗞𝗻𝗼𝘄𝗹𝗲𝗱𝗴𝗲 & 𝗗𝗼𝗰𝘂𝗺𝗲𝗻𝘁 𝗦𝗲𝗮𝗿𝗰𝗵 AI-powered search across company knowledge, documentation, and internal information, plus chat with uploaded PDF documents. 🔹 𝗔𝗜 𝗘𝗺𝗽𝗹𝗼𝘆𝗲𝗲 𝗔𝘀𝘀𝗶𝘀𝘁𝗮𝗻𝘁𝘀 AI assistants that help employees find information, answer questions, handle routine tasks, and reduce repetitive work. 🔹 𝗔𝗜 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗣𝗿𝗼𝗰𝗲𝘀𝘀 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 AI systems that process, classify, and route incoming emails and requests, automate repetitive workflows, and reduce manual operational work. 🔹 𝗔𝗜 𝗗𝗼𝗰𝘂𝗺𝗲𝗻𝘁 𝗣𝗿𝗼𝗰𝗲𝘀𝘀𝗶𝗻𝗴 & 𝗗𝗮𝘁𝗮 𝗘𝘅𝘁𝗿𝗮𝗰𝘁𝗶𝗼𝗻 AI-powered processing of PDFs, invoices, receipts, and other business documents that extracts useful information and eliminates manual data entry. 🔹 𝗔𝗜 𝗘-𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗲 𝗖𝗼𝗻𝘁𝗲𝗻𝘁 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 AI-generated product descriptions, product listings, marketing content, product images, and catalog content at scale. 🔹 𝗔𝗜 𝗔𝗱𝘃𝗲𝗿𝘁𝗶𝘀𝗶𝗻𝗴 𝗖𝗼𝗻𝘁𝗲𝗻𝘁 AI-generated advertising images and short videos for faster creative production, testing, and campaign iteration. 🔹 𝗔𝗜 𝗩𝗼𝗶𝗰𝗲 𝗔𝘀𝘀𝗶𝘀𝘁𝗮𝗻𝘁𝘀 AI voice assistants that handle customer calls, answer questions, qualify leads, and automate routine conversations. 💬 𝗛𝗮𝘃𝗲 𝗮 𝗺𝗮𝗻𝘂𝗮𝗹 𝘄𝗼𝗿𝗸𝗳𝗹𝗼𝘄 𝘆𝗼𝘂 𝘄𝗮𝗻𝘁 𝘁𝗼 𝗮𝘂𝘁𝗼𝗺𝗮𝘁𝗲? Send me what you’re doing manually today. I’ll show you what can be automated and what an AI-powered solution could look like. Python Developer, Senior Python Developer, Python Backend Developer, Python AI Developer, AI Developer, AI Engineer, AI Integration Developer, AI Automation Developer, AI Application Developer, LLM Developer, Generative AI Developer, AI Agent Developer, AI Chatbot Developer, AI Assistant Developer, RAG Developer, RAG Engineer, OpenAI Developer, OpenAI API Developer, Claude API Developer, LangChain Developer, LangGraph Developer, FastAPI Developer, Django Developer, Python SaaS Developer, SaaS Developer, Backend Engineer, Backend Developer, API Developer, REST API Developer, AI Automation Expert, AI Integration Specialist, Document AI Developer, AI Voice Assistant Developer 𝗔𝗜 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 AI workflow automation, AI business automation, AI process automation, AI-powered automation, AI integration, AI software integration, LLM integration, AI API integration, chatbot development, AI chatbot development, custom AI chatbot, AI assistant development, AI agent development, AI automation solutions, AI workflow development, AI SaaS development, AI MVP development, AI application development, custom AI software development. 𝗔𝗜 𝗮𝗻𝗱 𝗟𝗟𝗠 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 Large Language Models, LLM applications, LLM integration, Generative AI applications, AI-powered applications, AI-powered software, AI tools, AI assistants, AI agents, autonomous AI agents, conversational AI, enterprise AI, custom AI solutions, AI product development, AI software development, AI platform development. 𝗥𝗔𝗚 & 𝗞𝗻𝗼𝘄𝗹𝗲𝗱𝗴𝗲 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 Retrieval-Augmented Generation, RAG pipeline, RAG application, RAG chatbot, RAG system, enterprise RAG, knowledge base chatbot, AI knowledge base, AI document search, semantic search, AI-powered search, vector search, document intelligence, document processing, PDF AI, PDF chatbot, document AI, information extraction, data extraction, automated data extraction. 𝗔𝗜 𝗘-𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗲 & 𝗖𝗼𝗻𝘁𝗲𝗻𝘁 AI product search, AI shopping assistant, AI product recommendations, product description generation, product content generation, AI product images, AI image generation 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 Python backend, Python API development, Python web development, FastAPI backend, Django backend, REST API development, backend API integration, third-party API integration, SaaS backend development

"Python Full stack developer who can take full ownership of features from UI to API layer and turn product ideas into revenue-generating systems used by clients to make $1M+. You’re in the right spot 🏆 10+ years as a Full Stack Developer and Python Full stack developer 📊 $400K+ earned on Upwork across 85 Full Stack Developer projects 🎯 Top Rated Plus with 99% Job Success Score as a Full stack Developer ⚡ 100+ production builds as a Python web developer ✅ 40+ AI-powered features, AI integrations, OpenAI API integration projects 💼 Austin, TX based | Full Stack Developer team with global capacity ⭐⭐⭐⭐⭐ 𝑰 𝒉𝒂𝒗𝒆 𝒘𝒐𝒓𝒌𝒆𝒅 𝒘𝒊𝒕𝒉 𝒔𝒆𝒗𝒆𝒓𝒂𝒍 𝒔𝒊𝒎𝒊𝒍𝒂𝒓 𝒔𝒆𝒓𝒗𝒊𝒄𝒆 𝒑𝒓𝒐𝒗𝒊𝒅𝒆𝒓𝒔 𝒂𝒏𝒅 𝒃𝒆𝒆𝒏 𝒊𝒎𝒑𝒓𝒆𝒔𝒔𝒆𝒅 𝒘𝒊𝒕𝒉 𝑨𝒔𝒂𝒅 𝒂𝒏𝒅 𝒉𝒊𝒔 𝒕𝒆𝒂𝒎 𝒐𝒏 𝒆𝒗𝒆𝒓𝒚 𝒍𝒆𝒗𝒆𝒍. 𝑬𝒙𝒄𝒆𝒍𝒍𝒆𝒏𝒕 𝒄𝒐𝒎𝒎𝒖𝒏𝒊𝒄𝒂𝒕𝒐𝒓𝒔, 𝒑𝒓𝒐𝒂𝒄𝒕𝒊𝒗𝒆 𝒊𝒏 𝒑𝒓𝒐𝒃𝒍𝒆𝒎-𝒔𝒐𝒍𝒗𝒊𝒏𝒈, 𝒂𝒏𝒅 𝒕𝒉𝒆 𝑭𝒖𝒍𝒍 𝑺𝒕𝒂𝒄𝒌 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒆𝒓 𝒐𝒖𝒕𝒑𝒖𝒕 𝒘𝒂𝒔 𝒑𝒓𝒐𝒅𝒖𝒄𝒕𝒊𝒐𝒏-𝒓𝒆𝒂𝒅𝒚 𝒇𝒓𝒐𝒎 𝒅𝒂𝒚 𝒐𝒏𝒆. (Julian M.,) I am a Senior Full Stack Developer ( python full stack developer ), automation engineer helping founders build SaaS platforms, AI tools, workflow systems with clean maintainable code in a modern production environment. I work as a frontend and backend developer across React TypeScript application builds, Python Flask backend architecture, existing codebase improvements, authentication migration, role-based permissions, token-based authentication, Stripe integration, AI assistant logic. 🔶 PropTech AI Platform ($70K): Lead python full stack developer and ai software developer on an AI-driven real estate assistant. React, TypeScript, Python, OpenAI API, Supabase, MERN stack 🔶 Voice AI Agent System: python automation with chatbot logic, Zapier, CRM, booking flows, retry logic, detailed error logging 🔶 LinkedIn Lead Gen on n8n: python automation processing 10K+ profiles/day, reducing manual research by 80% with AI enrichment, data entry cleanup, batch processing 🔶 Multi-Tenant AI SEO Platform: full stack developer python from zero to launch with 5+ user roles, 20K+ tracked keywords, AI content workflows, PostgreSQL, LangChain Gemini API integration Next.js, FastAPI, PostgreSQL, LangChain, AI insights dashboard, Gemini API integration My core full stack developer expertise ✔️ 100+ shipped features as a python full stack developer for AI SaaS, admin panels, dashboards, production platforms ✔️ 40+ production workflows as a python full stack developer flask for Python Flask backend, REST APIs, auth, Stripe, AI integration ✔️ 10K+ end users supported as a python web developer for secure APIs, dashboards, internal tools, AI web application products ✔️ 6-12 week launch cycles as a python full stack developer for SaaS MVPs, AI-powered website builds, ai website system ✔️ 5+ user roles and permission layers built as a python web developer for scalable backend logic, reporting tools, role-based products ✔️ 10K+ records/day processed as a python full stack developer for integrations, data workflows, and OpenAI API integration ✔️ 99%+ deployment reliability as a python web developer for Django website support, Flask APIs, PostgreSQL apps, React, TypeScript, Supabase, AWS, Vercel, CI/CD Automation and AI systems | Python full stack developer ✔️ Python automation for Playwright Python, Selenium, browser automation, web scraping ✔️ Python automation system for CRMs, databases, email, reports, payment gateway workflows ✔️ Python automation for Google Sheets automation, batch processing, retry logic, detailed error logging ✔️ Python automation for AI-powered automation, AI document processing, internal AI assistant tools, marketing saas, lead enrichment, analytics, and AI-powered features connected to OpenAI API, dall-e, Gemini API integration, AI integrations 🧩 Related experience and adjacent technologies as a Full stack Developer I also support projects involving React developer tasks, mobile app developer coordination, backend developer architecture, data scientist collaboration, qa analyst workflows, php developer legacy fixes, full stack java support, .net core, front end developer work, quicksight dashboards, sharepoint integrations, seo specialist tooling, wordpress, wordpress developer support, wordpress thrive theme, oxwall, web design, mobile app designer handoffs, gaming developers coordination, ai machine learning workflows, ai tool prototypes, startup consultant guidance, it consultant audits, technical resume writing 🎯 𝐁𝐞𝐬𝐭 𝐟𝐢𝐭 Founders building AI-native SaaS, operators replacing broken automations, agencies needing Full Stack Developer capacity, startups looking for a python full stack developer who can own the product end to end. 𝐍𝐨𝐭 𝐚 𝐟𝐢𝐭 if you need a $500 landing page, basic WordPress customization, crypto/trading systems. Looking for a Full Stack Developer who ships production-grade SaaS and automation? Let’s talk."

🏆 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

🏆 Top Rated Plus Full Stack Developer ✅ 100% Job Success Score ⏳ 7,000+ hours tracked on Upwork 🚀 200+ projects shipped in 20+ years 📈 Builds serving 5 - 10M monthly users 💾 Databases holding 100M+ user records 🤝 Clients stay 3 - 10+ years, not one-off projects I provide Full Stack Developer work that outlives the launch. Why hire my Full Stack Developer (s): - a Full Stack Developer who carries the Front End Developer and Backend Developer load on the same project - Full Stack Developer, Front End Developer and Backend Developer work in one pair of hands, no vendor handoffs My Full Stack Developer focus is CRM, ERP, admin systems and B2B platforms - Full Stack Developer builds with RBAC, audit trails and Stripe billing. Clients come to a Full Stack Developer instead of splitting a project between a Front End Developer shop and a Backend Developer contractor, so QA and deployment stay inside one Full Stack Developer workflow. The Full Stack Developer stack is React, Next.js, Vue, PHP, Node.js, MySQL and Redis, on AWS, GCP and Heroku infrastructure sized for peak loads up to 100K users per second. Adjacent Full Stack Developer tracks: Full Stack Web Developer rebuilds, Python Full Stack Developer pairings for data work, Full Stack Developer AI on a codebase already in production, and Full Stack Developer React funnels. My Front End Developer track is where a product stops looking like an internal tool - dashboards, admin panels, multi-tenant SaaS consoles and marketing funnels, with pages rendering in under 2 seconds. A Front End Developer React build is the default in a Full Stack Developer engagement: React with Next.js, Tailwind and Redux, plus Front End Developer Next.js server rendering when SEO carries the traffic. My Front End Developer also ships Vue 3 with Pinia when a project already runs a PHP backend. Clients searching for a Front End Web Developer or a React Developer want one Front End Developer who owns component architecture, state and API contracts instead of styling someone else's markup. Front End Developer AI work grows every quarter: streaming responses, chat surfaces and agent panels wired into an app that already has users. My Backend Developer work carries the load underneath - REST and GraphQL APIs, queues, background jobs, reporting and integrations. A Node.js Backend Developer service is the usual answer when real-time traffic or webhook throughput matters, and a Backend Developer Nest.js structure keeps a growing API navigable. On the PHP side the same Backend Developer covers Laravel and custom PHP with MySQL, Redis and OpenSearch. Where a client wants a JavaScript backend end to end, backend NodeJS services sit behind the same Next.js frontend, and a Python Developer joins for data pipelines and AI. My Backend Developer also inherits legacy systems: a WordPress Developer migration out of Gutenberg into a custom platform, an API that has to keep answering while it gets replaced. Clients search by role, and the same engineers field all of them - a Full Stack Developer, a Backend Developer or a Software Developer on the server side, a Front End Developer, React Developer or Vue.js Developer on the client side, and PHP Developer, CRM Developer or ERP Developer profiles. When a build needs a Mobile App Developer alongside the web product, my engineers ship the app on the same Full Stack Developer API. As COO I oversee every Full Stack Developer engagement - I stay close to the discovery, match the right Full Stack Developer engineers and own the commercial side. My Front End Developer and Backend Developer engineers own the code. Clients hire me for Full Stack Developer work when they need: - a Full Stack Developer who owns frontend, backend, infrastructure and deployment - a Front End Developer for a dashboard, console or funnel that has to feel fast - a Backend Developer for APIs, integrations and reporting that stay predictable under load Recent Full Stack Developer work I shipped: - Built a Full Stack Developer identity-verification SaaS on a PHP API with Node.js real-time on MySQL and Redis - 4K+ DAU, 1M+ checks through a public Developer API. - Scaled a multi-currency voting SaaS to 2M+ users across 10 countries with vote locking and Stripe payouts, $2.5M+ revenue. - Grew a B2B luxury asset marketplace with 15 engineers - React, Next.js, PostgreSQL, OpenSearch, Stripe - to 26K MAU, 75% MoM growth, 25% engagement. - Shipped a creator-monetization SaaS with Stripe Connect, Twilio and Mailgun - 0% fee on donations, 9% only on marketplace sales. - Delivered a Full Stack Developer medical-center ERP with registration, cashier, doctor and lab modules for 60 concurrent staff and 500 patients a day. - Rebuilt a CRM for a photography business - legacy WordPress ripped out, briefs and asset pipelines re-routed into a custom platform. Need a Full Stack Developer who covers the Front End Developer and Backend Developer sides and stays long-term - let's talk.