Farzam A.

I build SaaS products end-to-end, including AI features inside them: React and Next.js front ends, Ruby on Rails, Node.js, and Python back ends, and LLM integrations with Claude and OpenAI, including RAG, AI agents, and voice agents. 47 completed jobs on Upwork. My longest contracts ran 2,449 hours on one SaaS product and 2.5 years with an Australian digital-health agency. Certified Ruby on Rails Developer, 9+ years of experience. AI WORK I'VE SHIPPED - SurgePoint, an AI receptionist for clinics. A Retell voice agent books into Boulevard, Zenoti, Mindbody and Google Calendar, and Claude grades every call against versioned rubrics, with its agreement against human reviewers tracked per version. Lead engineer, 879 of 900 commits. - pandOS, a Dutch property platform. One AI gateway for Anthropic, OpenAI and local models: evals in CI that block a PR when the pass rate drops, per-call cost logs, circuit breakers and budget-based model routing. - Mentara, an AI coach. Hybrid RAG with pgvector and Postgres full-text search, plus a real-time Python voice agent on LiveKit, Deepgram and Cartesia with barge-in. - Rental inquiry screening for a Frankfurt letting agency. Next.js 15, Supabase and OpenAI, with the model picked by running four of them on the client's own 16 test cases. I wrote all 228 commits. - WinAD, contract intelligence. Contract PDFs turned into structured, cited data with a vision model, Portkey prompt management and an eval harness. FULL STACK AND SAAS WORK - PadStats: Next.js 14 map for real-estate underwriters, with Mapbox GL and H3 hazard layers. Top committer on the front end, 1,012 commits. - SEAL: Next.js 16 and React 19 cyber-risk portal with five role-based areas and AI reports streamed live. Sole front-end developer. - Gameplans: property-investment platform on Rails 7 with OpenAI Assistants and file search. 1,004 commits over two years. - WeGuide: multi-tenant Rails platform that organisations run as their own branded patient app. - Stripe and Braintree subscriptions, API integrations (Twilio, SendGrid, Google Calendar, CRMs), and Rails upgrades on live apps, including Rails 4 to 7.1. WHAT CLIENTS SAY "After working with Farzam on a smaller feature, we asked him to take on the full MVP of our storytelling platform, and it was the right decision." (Storytelling platform MVP, 2026) "He's reliable, a good communicator and an excellent developer. He goes the extra mile and actively thinks along while creating new functionalities." (Thijs S., Head of Product, WeGuide) HOW I WORK Short written updates on daily basis to tackle the timezone, tests, and CI from day one, and reliable code from the very first day. I use Claude Code every day and review every line before it ships. STACK Ruby on Rails, Ruby, Hotwire, React, Next.js, TypeScript, JavaScript, Node.js, Express, Python, Django, Vue.js, React Native, PostgreSQL, pgvector, Redis, Sidekiq, Supabase, Tailwind CSS, Stripe, Docker, AWS, Google Cloud, Heroku, Vercel, GitHub Actions, RSpec, Anthropic Claude, OpenAI, LangChain, LiveKit, Retell, Deepgram