Minh H.

Senior Full-Stack AI Engineer & Technical Lead | SaaS MVP to Scalable

I build AI-powered SaaS products end-to-end - from blank page to production - as a solo engineer or technical lead. Technical Lead at an AI coaching platform, MSc in Software, Web & Cloud (Tampere University), and 8+ years shipping 10+ production systems across real estate, healthcare, logistics, AI platform, fleet management, e-learning, and video streaming. I've built for enterprises serving AXA, Prudential, and Manulife, and shipped a video player used by Orange France, Orange Spain, and Turkcell. If you need someone who can own the whole thing - architecture, frontend, backend, database, AI, infrastructure, and deployment - without a team around them, that's what I do. ⭐ WHY CLIENTS HIRE ME I build AI products, not just apps with AI bolted on. I run LLM systems in production: prompt orchestration, streaming chat, RAG with vector search, document extraction, and structured AI outputs - including the unglamorous parts most people skip (fallbacks when the model is wrong, cost control, and keeping AI output visibly separate from verified data). I ship fast without shipping fragile. I use AI-accelerated workflows (Claude Code, Codex, Cursor, Lovable, Replit) to move at 2-3x normal speed - but I review every line, and I don't ship code I couldn't defend to a reviewer. Speed and quality aren't a trade-off if you know where AI is unreliable. I take real ownership. I tell you early when a plan is wrong, give a recommendation instead of a menu of options, and communicate trade-offs in plain English. Several clients have kept me on long-term precisely because I flag risks before they get expensive. 🛠️ WHAT I DELIVER - MVPs & full SaaS platforms - idea to architecture to launch, solo or leading a small team - AI integrations - LLM features, RAG/vector search, document processing, AI assistants, automation - System design & architecture - data modeling, REST APIs, microservices, multi-tenant with row-level security - Internal tools & dashboards - admin panels, analytics, approval workflows, design systems - Legacy modernization - audits, refactors, migrations, performance work - Cloud & DevOps - AWS, Vercel, Render, Docker, CI/CD, monitoring - Third-party integrations - payments, health data, accounting, messaging, calendars 📌 SELECTED WORK + Kaski AI - Technical Lead. AI coaching platform across web, mobile, and Node/Go microservices. I own architecture, APIs, database evolution, four-tier role-based access, subscription billing, and the AI conversation layer - plus integrations with Garmin, Suunto, Oura, Whoop, Apple Health, and Google Health. + Hupo - Enterprise AI platform used by AXA, Prudential, and Manulife. Real-time AI sessions on WebSockets and Redis, Anthropic/OpenAI integration, and privacy hardening to SOC 2 standard. + Waymark - Real-estate SaaS I built solo. Seller dashboard, MLS integration, AI PDF parsing that extracts offer terms and flags deadlines and risks, Stripe checkout, two-way SMS/email, e-signed disclosures. Multi-tenant with Postgres row-level security. + Clinical Diagnostics Platform - Rebuilt a lab's MATLAB scoring engine as a validated Python platform for an FDA 510(k) submission, reaching 98.5% parity across a 201-compound dataset, with QC gating, audit trails, and 21 CFR Part 11 e-signatures. + Service Ninja - Fleet management + e-commerce for an Australian supplier: service scheduling, inspections, inventory, Xero invoicing, and Stripe - later extended into a white-label multi-tenant product. Also: legal SaaS with per-seat billing, email-marketing analytics, an interactive canvas-based yard management system, and enterprise dashboards at The KPI Institute. 💻 TECHNICAL STACK Languages: TypeScript, JavaScript, Go, Python, Java Frontend: React, Next.js (App Router), Vue.js, Tailwind CSS, Material UI, Redux/Zustand Backend: Node.js, NestJS, Fastify, Express, Go, Python/FastAPI Databases: PostgreSQL, Supabase, MongoDB, Prisma, Redis, pgvector AI: OpenAI, Anthropic (Claude), LLM orchestration, RAG & vector search, n8n automation Cloud/DevOps: AWS (S3, Amplify, Bedrock Knowledge Base), Vercel, Render, Docker, GitHub Actions, GitLab CI/CD, Jenkins Payments: Stripe, PayPal, Paddle, Lemon Squeezy Integrations: Garmin, Suunto, Oura, Whoop, Apple/Google Health, Xero, Twilio, SendGrid, MLS Testing: Jest, Vitest, Playwright, Storybook, Sentry Media: HLS, DASH, Video.js, Shaka Player 🎓 BACKGROUND MSc, Software, Web & Cloud - Tampere University (top 3 in Finland) BSc, Information Technology - Vaasa University of Applied Sciences 💬 LET'S TALK Whether it's an MVP, a full SaaS build, an AI feature, a rescue project, or a system that needs modernizing - send me a message describing what you're trying to achieve. I'll tell you honestly whether I'm the right fit, and if I am, how I'd approach it.