Muhammad B.

Ruby on Rails + AI Agents | Sr. Full-Stack Developer for SaaS Founders

Top Rated Plus engineer with 100% Job Success. I build production-grade SaaS platforms and AI-powered automation systems from multitenant Rails applications to custom AI agents that replace manual workflows. Over 7,800+ hours on Upwork, I've shipped systems for healthcare scheduling, retail benefits platforms, and IVR/telephony products. What I actually deliver: - Multitenant SaaS architecture (Rails, Postgres, AWS) built to scale from day one - AI agents integrated into existing products (LLM orchestration, RAG pipelines, automation workflows) - REST API design and third-party integrations (Salesforce, payment systems, telephony) Recent work: built a multitenant support system with full REST API integration for cross-platform communication; led backend architecture for a clinical AI platform (boardready.ai). Stack: Ruby on Rails, Python, Node.js, React, PostgreSQL, AWS, Salesforce APIs, AI/LLM integration (OpenAI, Claude, LangChain) Why clients keep working with me: . Full ownership from planning to deployment . Clear, proactive communication with no ghosting . Reliable delivery on what I promise I'm comfortable jumping into messy legacy codebases as well as greenfield builds. If you need someone who can own a system end-to-end, not just complete tickets, let's talk about what you're building.