Sanwal Mir

Python Developer

BiTech Pvt Ltd • Tiempo completo

Mar 2026 - Present • 5 mos

Working as a Python Developer, building scalable backend systems, APIs, automation solutions, and data-driven applications. Experienced in designing secure and efficient server-side architectures for mobile applications. Key Responsibilities & Technologies: ✅ Backend development using Python, Django, Django REST Framework (DRF), FastAPI, and Flask ✅ Designing and developing RESTful APIs for mobile applications ✅ Implementing secure authentication systems using JWT (JSON Web Tokens), OAuth, and Role-Based Access Control (RBAC) ✅ Developing backend services for Android and Flutter mobile applications ✅ Database design and management with PostgreSQL, MySQL, SQLite, and MongoDB ✅ Building web scraping and automation systems using Selenium, BeautifulSoup, Scrapy, and Requests ✅ Creating AI-powered and data-processing applications using Pandas, NumPy, Scikit-learn, TensorFlow, and NLP libraries ✅ Containerizing applications using Docker and Docker Compose ✅ API deployment and server management on Linux environments ✅ Version control and team collaboration using Git and GitHub ✅ Integrating third-party APIs, payment gateways, email services, and cloud services ✅ Optimizing application performance, debugging issues, and maintaining production systems Achievements: Developed secure backend architectures for web and mobile applications Built scalable APIs with authentication and authorization systems Worked on automation, data extraction, and AI-based solutions Delivered reliable and maintainable software solutions in a professional environment

Freelance Web Scraping and Automation Developer

Remote Care Partners • Trabajador autónomo

Nov 2025 - Present • 9 mos

Providing web scraping, data extraction, and automation services to clients worldwide since 2022. Web Scraping and Data Extraction: Scraped 100+ websites across 15+ countries including USA, UK, Canada, Turkey, Israel, Romania, Croatia, Ukraine, Russia, Indonesia, Brazil, Belgium, Australia, Japan, and Denmark. Specialized in anti-detection scraping — handling Cloudflare, CAPTCHAs, JavaScript-rendered pages, and aggressive bot protection. Tools: Python, Selenium, SeleniumBase UC mode, Playwright, DrissionPage, BeautifulSoup, Scrapy, and undetected-chromedriver. Built custom proxy rotation systems using NordVPN SOCKS5 proxies and residential proxy pools. Delivered 500,000+ rows of clean, structured data in Excel, CSV, JSON, Google Sheets, and database formats. Workflow Automation: Designed production-ready n8n automations integrating APIs, CRMs, email platforms, social media tools, and AI services to eliminate manual processes and scale business operations. Data Pipelines and Dashboards: Built Power BI dashboard pipelines processing large-scale datasets with automated ETL workflows and monthly data ingestion for business intelligence reporting. AI and RAG Systems: Developed RAG-based intelligent document retrieval systems using FAISS vector search, LangChain, SentenceTransformer embeddings, and LLMs (OpenAI, Llama, Qwen). Built Intelli News — a full RAG-powered news intelligence platform with semantic search, automated summarization, and multilingual support. Core Tech Stack: Python, Selenium, Playwright, Scrapy, DrissionPage, FastAPI, NestJS, LangChain, FAISS, n8n, Power BI, Docker, PostgreSQL