Mark H.

I build full-stack SaaS applications, Python backend systems, AI automation tools, and reliable web-scraping pipelines for startups and businesses. My work usually involves turning a manual or inefficient process into software that is easier to operate, scale, and maintain. What I can help with: • Full-stack web applications using React, Next.js, TypeScript, FastAPI, Flask, and Django • AI agents, chatbots, and LLM applications using OpenAI, Claude, RAG, embeddings, and pgvector • Web scraping and data extraction using Playwright, Selenium, Scrapy, and BeautifulSoup • Workflow automation using Python, n8n, Make, Zapier, APIs, and webhooks • Backend APIs, SaaS platforms, dashboards, CRM systems, and internal business tools • Authentication, role-based access, Stripe payments, and real-time features • PostgreSQL, MySQL, Redis, Docker, Linux, AWS, Azure, and Vercel deployments Recent projects include: • An AI-powered WhatsApp SaaS platform with business knowledge, conversation routing, and human handoff • An acquisition intelligence platform that researches, analyzes, and shortlists companies using financial and business data • Real-estate lead-generation tools that collect, verify, clean, and deduplicate data from multiple public sources I work directly with business owners and product teams, so the focus is not only on writing code. It is also on understanding the real problem, choosing a practical approach, and delivering software people can use confidently. You can expect clear communication, honest technical advice, maintainable code, thorough testing, and a clean handover.