Top 1pct Expert-Vetted Software Developer with 25 years of experience across various platforms: embedded, desktop, web and mobile. Specialising in C++, Python, C#, PHP, TypeScript and JavaScript. Databases MSSQL, MySQL, PostgreSQL. I'm experienced in code development, software architecture design and project management. I have worked on a wide range of desktop applications for Windows, OS X, and Linux. Participated in the massive commercial projects. Developed numerous web, desktop and mobile apps according to the clients' requirements.

I help startups and businesses build scalable backend systems, AI-powered products, SaaS platforms, and custom APIs using Python, Django, and FastAPI. Over the past few years, I’ve worked on AI agents, RAG-based chat systems, workflow automation, cloud deployments, internal business tools, database migrations, and high-performance backend architectures for startups and growing companies. My experience includes: • AI Agents & AI-powered applications • Backend architecture & API development • Django, FastAPI, Flask & Python • SaaS platforms & MVP development • PostgreSQL, MySQL & database optimization • AWS, Docker & deployment workflows • Automation systems & third-party integrations • Code optimization, debugging & refactoring I focus on writing clean, scalable, and production-ready backend code with strong attention to performance, maintainability, and long-term scalability. Whether you need to build a backend from scratch, improve an existing SaaS product, develop AI-powered workflows, or optimize APIs and infrastructure, I can help deliver reliable solutions that scale. Let’s build something great together.

Most companies split the work between a Full Stack developer for the application and an AI engineer for the intelligence layer which often leads to misalignment, fragmented architecture, and communication issues. I design and build the entire system end-to-end as one cohesive solution. 🌟 Full-Stack Developer & Automation Specialist | Custom Web Apps, AI Solutions, Bots & End-to-End Automation🌟 I am a Senior Full Stack AI Automation Engineer who builds intelligent, self sustaining systems. I don't just write scripts; I architect complete business ecosystems where your web apps (React/Next.js) talk seamlessly to your AI agents (OpenAI/LangChain) and automation workflows (n8n/Make). Here’s what I bring to the table: 💻 Front-End Web Development (HTML, CSS, JavaScript) – Crafting responsive, interactive, and user-friendly websites that look great and perform flawlessly across devices. ⚛ React Development – Building modern, dynamic web apps with clean state management and smooth, intuitive user experiences. 🧠 AI & Machine Learning – Creating intelligent systems that learn, adapt, and make smarter business decisions possible. 📄 LLMs & NLP – Integrating Large Language Models (GPT, LLaMA, RASA) with RAG pipelines for document analysis, smart chatbots, and contextual automation. 🤖 Automation (Selenium & Playwright) – Eliminating repetitive tasks with precision automation, boosting efficiency, and saving valuable time. 🌐 SaaS Development – Designing and scaling cloud-based SaaS platforms tailored to your business model, ready to grow with your customers. 🤖 Social Media Bots – Supercharging your brand with custom bots for automated engagement, campaigns, and social interactions. 📱 App Development – Delivering sleek, high-performance mobile & web apps that combine functionality with a premium user experience. ☁ Cloud Solutions – Leveraging AWS, Azure, and Google Cloud to build secure, scalable applications with enterprise grade reliability. Recent Wins & Case Studies: Automated SaaS Engine: Built a React/Python platform integrated with HubSpot/Salesforce that automates user onboarding, saving the client 20+ hours/week. Intelligent RAG System: Developed a custom AI agent that retrieves data from internal PDFs/Notion and answers employee queries instantly, cutting support tickets by 60%. Lead Gen Automation: Created a "set and forget" system that scrapes leads, enriches data via AI, and pushes them to the CRM automatically. Click "Invite to Job" to discuss your automation roadmap. With a focus on performance, scalability, and automation, I’m here to help you take your projects to the next level. Let’s work together to make your vision a reality! 🚀

𝗣𝘆𝘁𝗵𝗼𝗻 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 who specializes in 𝘄𝗲𝗯 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁, 𝗮𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻, and 𝗔𝗜-powered workflows? I build 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝘄𝗲𝗯 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀, 𝘄𝗼𝗿𝗸𝗳𝗹𝗼𝘄 𝗯𝗼𝘁𝘀, 𝗱𝗮𝘁𝗮 𝗽𝗶𝗽𝗲𝗹𝗶𝗻𝗲𝘀, and 𝗔𝗣𝗜𝘀 that help businesses 𝘀𝗮𝘃𝗲 𝘁𝗶𝗺𝗲, 𝗿𝗲𝗱𝘂𝗰𝗲 𝗰𝗼𝘀𝘁𝘀, and 𝗴𝗿𝗼𝘄 𝗳𝗮𝘀𝘁𝗲𝗿. 💡 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 (𝗪𝗵𝗮𝘁 𝗜 𝗗𝗲𝗹𝗶𝘃𝗲𝗿): ✅ 𝗣𝘆𝘁𝗵𝗼𝗻 𝘄𝗲𝗯 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 – FastAPI, Django, Flask, Stripe, Rest API, GraphQL, OAuth, Webhooks, 3rd-party integrations. ✅ 𝗪𝗼𝗿𝗸𝗳𝗹𝗼𝘄 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗔𝗜 𝗕𝗼𝘁𝘀 – RPA, monitoring, trading bots, Zapier/n8n automation. ✅ 𝗔𝗜 𝗔𝗴𝗲𝗻𝘁𝘀 & 𝗟𝗟𝗠 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 – GPT, Claude, LLaMA, RAG systems, conversational AI. ✅ 𝗘𝗧𝗟 𝗣𝗶𝗽𝗲𝗹𝗶𝗻𝗲𝘀 & 𝗕𝗶𝗴 𝗗𝗮𝘁𝗮 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 – Kafka, Spark, Airflow, Hadoop, Redis, BI dashboards. ✅ 𝗣𝘆𝘁𝗵𝗼𝗻 𝗪𝗲𝗯 𝗦𝗰𝗿𝗮𝗽𝗶𝗻𝗴 & 𝗗𝗮𝘁𝗮 𝗘𝘅𝘁𝗿𝗮𝗰𝘁𝗶𝗼𝗻 – Scrapy, Selenium, Playwright, Puppeteer, BeautifulSoup. Large-scale & real-time data scrapers. ✅ 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀 & 𝗦𝗲𝗮𝗿𝗰𝗵 – PostgreSQL, MySQL, MongoDB, Supabase, ElasticSearch, Pinecone, FAISS, Milvus, Weaviate. ✅ 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀 – AWS, GCP, Azure, Docker, Kubernetes, Terraform, CI/CD pipelines. 🏆 𝗣𝗿𝗼𝘃𝗲𝗻 𝗥𝗲𝘀𝘂𝗹𝘁𝘀: ✔ Reduced support costs by 80% deploying AI automation (OpenAI, Vertex AI, Dialogflow) — delivered in 6 weeks ✔ Built automation saving 100+ hours/week for SaaS & logistics. ✔ Built production-ready AI chatbots handling 10K+ customer interactions monthly with 95% accuracy ✔ Scaled backend systems from 100 to 1,000+ concurrent users maintaining 99.9% uptime ✔ Led cloud migration saving 40% infrastructure costs while improving deployment speed by 3x ✔ Delivered 50+ RESTful API integrations on time and within budget across e-commerce and SaaS platforms ✨ 𝗪𝗵𝘆 𝗣𝗮𝗿𝘁𝗻𝗲𝗿 𝗪𝗶𝘁𝗵 𝗠𝗲? • 8+ years of Python, data engineering & automation expertise • Scalable, maintainable, future-proof code • Clear communication & long-term partnership mindset 📈 𝗟𝗲𝘁’𝘀 𝗔𝗰𝗰𝗲𝗹𝗲𝗿𝗮𝘁𝗲 𝗬𝗼𝘂𝗿 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗚𝗿𝗼𝘄𝘁𝗵 If you need a Python web scraping expert, automation developer, or AI engineer, I’m here to help. 📩 𝗠𝗲𝘀𝘀𝗮𝗴𝗲 𝗺𝗲 𝘁𝗼𝗱𝗮𝘆 to discuss your project.

I build data pipelines that turn messy sources into clean, actionable datasets. Core Services: Data extraction from websites, APIs, and legacy systems ETL pipelines with validation, deduplication, and scheduling Database design and optimization (PostgreSQL, SQLite, MongoDB) LLM integration for data enrichment and classification API development and reverse engineering Tech Stack: Python, asyncio, aiohttp, FastAPI, Playwright, Selenium, BeautifulSoup, pandas, SQLAlchemy, REST APIs | Custom Libraries (open-source) | [ http-client-core ]: production-grade async HTTP client with rate limiting, retry logic, circuit breakers, and connection pooling [ phantom-persona ]: Playwright-based browser automation with fingerprint rotation and anti-detection | Featured Projects | Real Estate Market Intelligence (Czech Republic) Extracted 90,000+ property listings with price history tracking. Built incremental update system detecting price changes and new listings daily. Professional Database (Italy) Collected 250,000+ business records. Implemented deduplication pipeline and structured output for CRM integration. Job Market Analyzer End-to-end pipeline: extraction → LLM-powered classification → structured database. Automated categorization of job requirements and salary data. E-commerce Price Monitoring Multi-store tracking system for Shopify platforms with change detection and alerting. | Why work with me | Production-ready code with logging, error handling, and documentation Async-first architecture for high-throughput operations Clear communication and realistic timelines CS student with engineering mindset, not just scripting GitHub: [ /Git-Dalv/web-scraping-examples ] - browse my tools and code samples Message me with your data challenge, I'll respond with a technical assessment and honest timeline.

100% Job Success Score I build rock-solid, cloud-ready back-ends in Python and keep them running with first-class DevOps, APIs, micro-services, CI / CD, Docker/Kubernetes, IaC, observability – you get the whole package, plus enough front-end skill to integrate seamlessly with React or Vue teams. Core Technical Stack Languages :- Python 3.x** (10 y), TypeScript, Bash | Frameworks :- Django • DRF, FastAPI, Flask, Celery | |Datastores :- PostgreSQL, MySQL, Redis, MongoDB | Cloud / DevOps:- AWS (ECS, Lambda, RDS, S3, …); GCP; Docker; **Kubernetes** (EKS/GKE); Terraform & Pulumi CI / CD :- GitHub Actions, GitLab CI, Jenkins, Azure pipelines, Google cloud build Observability :- Prometheus, Grafana, Loki, ELK, OpenTelemetry | Front-end glue :- React, Next.js, Tailwind – enough to wire up back-end payloads and build admin panels Testing :- Pytest, Tox, Coverage > 95 %; contract tests with Pydantic/FastAPI schemas, Automation testing with playwright 🧩 Typical ways I add value 1. Green-field MVPs – design the data model, choose the right Python framework, stand-up a CI pipeline & ship v1 inside weeks. 2. Legacy rescue – untangle monoliths into containerised services, replace ad-hoc scripts with repeatable IaC, improve deployment time from hours to minutes. 3. Scale-up accelerators – introduce async FastAPI, Redis queues, and horizontal autoscaling to handle 10× user growth with zero downtime. 4. Developer-experience upgrades – pre-commit hooks, conventional commits, automated versioning & tagging, opinionated Docker dev-containers. 🛠 My working style 1. Consultative first – I’ll challenge requirements, not just implement them. 2. Documentation matters – every repo ships with a Makefile, a one-command local dev setup, and architecture ✧ sequence diagrams. 3. Transparent estimates & over-communication** – daily updates, demoable progress twice a week. 4. Security by default** – OWASP, 12-Factor, encrypted secrets, least-privilege IAM baked in. 🤝 What you can expect when you hire me *Fast onboarding – I skim your README, run the stack, identify quick wins within the first day. *Senior-level autonomy – create epics, prioritise tasks, own delivery so you can focus on the business. Everything with be tracked and shared to you on daily basis plus will share the weekly report each Friday to have insight about the progress. *Production-grade quality – unit & integration tests, GitOps workflows, auto-rollbacks. *Knowledge transfer – hand-over docs, recorded Loom walkthroughs, pair-sessions for your devs. ✅ Let’s build something Whether you need a lightning-fast API, a resilient micro-service architecture, or a full CI / CD pipeline that deploys on every commit, I’m ready to jump in. Click “Invite to Job” or send me a message and I’ll reply within 24 hours with a concise plan tailored to your requirements. *(Available 30–40 hrs / week, UTC+5:30, fluent English.)*

🌟 Bijaya Kumar | Senior Python Developer & Web Scraping Specialist Turning Data into Decisions - 5+ Years of Precision Web Scraping & Automation Expertise 🚀 TECHNICAL PROWESS ✅ Web Scraping Mastery: 200+ websites scraped (e-commerce, government portals, dynamic JS sites) ✅ Cloudflare Bypass: Successfully bypassed Cloudflare protection with a custom-hosted Turnstile captcha solver ✅ Automation: Selenium, Playwright, Headless Chrome, Proxy Rotation (Residential/DataCenter) ✅ Python Ecosystem: Requests, Scrapy, BeautifulSoup, Pandas, NumPy, FastAPI, Celery ✅ Web Development: Django, Flask, RESTful APIs, PostgreSQL, MongoDB ✅ Cloud & DevOps: AWS (EC2/S3/Lambda), Docker, Nginx, Scrapydweb ✅ AI/ML Foundations: OpenCV, TensorFlow, LLM integration (data preprocessing/cleaning pipelines) 🔥 WHAT I DELIVER Advanced Web Scraping Solutions ✔️ Complex site scraping with anti-bot bypass (Cloudflare, Akamai, PerimeterX) ✔️ Real-time data pipelines & scheduled scrapes with Scrapy middleware ✔️ CAPTCHA solving integration (2Captcha, Anti-Captcha) ✔️ Legal compliance (robots.txt, rate limiting, data sanitization) Full-Cycle Development ✔️ ETL pipeline design (BeautifulSoup → Pandas → PostgreSQL) ✔️ Dashboard development with Plotly/Dash/Streamlit ✔️ PDF/Excel/CSV data extraction (PyPDF2, Tabula, Camelot) ✔️ API reverse-engineering & browser automation 🏆 RECENT ACHIEVEMENTS 🔥 Cloudflare Bypass Mastery – Engineered a custom-hosted Cloudflare Turnstile solver, unlocking seamless automation for protected websites. 💼 Reduced data acquisition costs by 62% for e-commerce client through proxy optimization 💼 Built FDA compliance monitoring system scraping 50+ government portals daily 💼 Automated financial report processing for Fortune 500 company using OCR + Pandas 💼 Maintained 99.98% success rate on mission-critical scraping infrastructure 🛠️ TECHNICAL TOOLKIT 🔹 Web Scraping & Automation → Scrapy | Selenium | Playwright | Proxy Rotation | Cloudflare Bypass | Captcha Solvers 🔹 Data Engineering & Analysis → Pandas | Apache Airflow | PostgreSQL | AWS S3 | Data Validation Pipelines | ETL Workflows 🔹 Web Development & APIs → Django REST Framework | FastAPI | JWT Authentication | Swagger/OpenAPI | Async Processing 🔹 AI/ML & Advanced Technologies → OpenCV | Tesseract OCR | LangChain | LLM Integration | NLP Pipelines 💡 WHY WORK WITH ME? ✅ Accuracy First – Zero tolerance for data inconsistencies and inaccuracies. ✅ Scalable & Resilient – Built-in retry logic, IP rotation, and robust error handling. ✅ Full Transparency – Detailed logging, structured data validation, and real-time monitoring. ✅ Long-Term Reliability – Ongoing maintenance and lifetime support for delivered solutions. ✅ Proven Track Record – 100% job success score on previous platforms. 📬 LET'S CONNECT! Ready to transform your data challenges into competitive advantages? 👉Let's Chat , Don't hesitate to contact me to discuss your work "I don't just extract data - I engineer information pipelines that drive growth."

Full-Stack Developer Who Builds Products, Not Just Features Python • MERN • FastAPI Not every developer thinks beyond code. I do. I design and build scalable, production-ready web applications that don’t break when your users grow. Whether it’s a SaaS platform, a high-performance API, or a full product from scratch — I focus on making it fast, clean, and built to last. 💡 What Makes Me Different? Instead of just stacking technologies, I focus on how everything works together: ◆ Clean backend architecture that scales ◆ Frontends that feel fast and intuitive ◆ APIs that are reliable and easy to extend ◆ Code that another developer can actually read 🛠 Tech Stack I Work With Backend Power → Python (Django, FastAPI) → Node.js / Express (MERN) Frontend Experience → React.js (modern, responsive apps) → State management (Redux / Context) → Real-time & API-driven interfaces Database & Systems → PostgreSQL / MongoDB → Scalable schema design → Performance optimization & caching ⚙️ What I Can Help You Build ✔ SaaS Platforms (multi-tenant, scalable) ✔ Custom Web Applications ✔ REST APIs & Microservices ✔ Admin Panels & Dashboards ✔ MVPs for Startups ✔ System Refactoring & Optimization 🧠 How I Approach Projects I don’t jump straight into coding. I think in terms of: → Scalability (Will this handle growth?) → Maintainability (Can this be extended later?) → Performance (Will it stay fast under load?) That’s how you avoid rebuilding everything in 6 months. 🤝 Why Clients Stick With Me ✔ I communicate clearly (no ghosting, no confusion) ✔ I meet deadlines without sacrificing quality ✔ I solve problems, not just complete tasks ✔ I build with long-term vision, not quick hacks 👉 If you need a developer who actually understands product thinking — not just code — let’s talk.

💡 Top 3% Talent on Upwork 💡 250+ Projects Completed | 5 ⭐ Reviews 💡 $100K+ earned with consistent 5-star feedback 💡 2000+ Hours Logged on Upwork 💡 5+ Years of Experience 💡 Clean code, fast delivery, and long-term support Looking for someone who can extract clean, structured, and accurate data from publicly accessible or client-authorized websites? Then you’re in the right place ✅ I specialize in building custom web data extraction and automation solutions that help businesses save hundreds of hours of manual work, improve data accuracy, and streamline workflows. ✅ Technologies I Use Programming Languages Python, Node.js, PHP, C# Data Extraction & Automation Selenium, Playwright, Puppeteer, Scrapy, BeautifulSoup, Cheerio Databases MySQL, PostgreSQL, MongoDB, Firebase, Supabase, SQL Server Data Delivery & Integrations Google Sheets, Excel, CSV, JSON, API integrations Infrastructure & Deployment VPS, Scheduled Automation, Cloud-Based Deployments ✅ What You Will Get ✔ Clean, well-structured data ✔ Fast turnaround ✔ Error-free automation ✔ Documentation (optional) ✔ Ongoing support & maintenance Regards Muhammad Fahad

Need a Python backend that scales, integrates AI, and just works? I build production-grade systems — from REST APIs and WebSocket services to LLM-powered features and AWS infrastructure. What I deliver: → Python backends with clean architecture (Django, FastAPI — 6+ years) → AI/LLM integration: OpenAI, Claude, RAG pipelines, real-time analysis → AWS infrastructure: ECS, S3, CloudFront, RDS, Terraform → Billing systems: Stripe, Apple IAP → Real-time features: WebSockets, Celery async processing Recent work: Built Typeza (typeza.ai) — an AI-powered SaaS platform with real-time audio transcription, parallel AI model calls across 15 trait dimensions, and full Stripe + Apple IAP billing. Previously: Backend developer at DIZZBO (logistics SaaS, Berlin) and full-stack at Lingvist (AI language learning, 2M+ users). 15 Upwork projects, 100% Job Success Score. I communicate clearly, deliver on time, and write code that future developers will thank you for. Let's discuss your project.