Mostly agentic AI and the systems around it: multi-agent workflows, voice agents, RAG over your own docs, and automations that run in production. I build the product too when you need it, web, mobile, or API. I work in whatever stack you already have.

Yes, that's the core of what I do. LangGraph, CrewAI, or whatever your team standardizes on. Tools wired through MCP, runs traced in LangSmith, and human checkpoints when something needs approval before it goes out.

Yes. On FrontDesk AI the voice agent takes inbound calls, checks a live calendar, books, sends an SMS confirmation, logs to the CRM, and transfers when it gets stuck. Same setup works with Vapi, Retell, or Twilio.

Yes. I've shipped eight n8n workflows with approval steps and proper error handling on FrontDesk AI alone. Make and Zapier are the same idea, different triggers. I fit the tool you pay for, not the other way around.

Both. A lot of the time the AI sits inside a normal app: Next.js on the front, FastAPI or Node on the back, mobile if you need it. I don't stop at the model demo.

Yes. Vector search plus keyword search, reranking, inline citations, and it refuses when your docs don't actually cover the question. That pattern is live today on legal research and clinic document Q&A.

Orchestration, tool calls, eval in LangSmith, plus the API and UI around it. Not a chain of prompts in a notebook. I'm a core engineer on a $10M+ funded startup with paying users, so I'm used to shipping, not prototyping.

AWS, Firebase, Supabase, PostgreSQL, Azure when clients require it. On the AI side: LangGraph, CrewAI, Vapi, n8n, and the usual stack. I adapt to what you host on rather than forcing my preferences.

Legal, healthcare, e-commerce, edtech, SaaS, marketing. The moving parts are similar: agents, retrieval, automations. Domain specifics I pick up quickly from your team.

Open to select projects, remote across US and EU time zones (UTC+5). Send a few lines on what you're building through the form below or email hello@rajajahanzaib.dev. I usually reply within a day.