Raghav J.

TOP RATED on Upwork | 100% Job Success Score | 5-star client feedback. I build AI agents, RAG and LLM products that run in production, plus the Flutter apps around them. Flagship: TrakaRoute, a live multi-tenant logistics and warehouse SaaS I built solo for a real client. Most AI features stop at a demo. I cover the full stack behind the ones that do not: LLM and agent backends, the APIs, and the Flutter or web app your users open. WHAT I HAVE BUILT AND CAN SHOW YOU - TrakaRoute (live): 300+ REST endpoints on a 40-table PostgreSQL schema, real-time WebSocket dispatch, geofence-validated proof of delivery, barcode-based warehouse workflows, TOTP MFA, OpenAI-assisted route optimization, Stripe billing, and Flutter apps for admins and drivers. Stack: React, TypeScript, Node.js, Express, PostgreSQL, Mapbox, AWS. - AI products: PAI Learn, an AI maths tutor for children, with guardrail checks and learner memory, deployed on AWS and tested against answer-leak scenarios; WorkPilot AI, which turns meeting transcripts into tasks and decisions with a RAG assistant and evidence validation; SkillItUp, an AI employability platform for blue-collar workers in India (skillitup.tech). - Flutter apps: SwopBand (an NFC ring that shares social profiles and contacts, Firebase backend), LMG (text-to-sign-language translation with AI gesture recognition), MyPet360 and a workout tracker. Earlier, as part of a team, I worked on 50+ mobile apps with 10M+ combined downloads. HOW I CAN HELP - AI agents, RAG and LLM integrations (OpenAI, Claude on AWS Bedrock, LangChain, LangGraph, MCP, Python) connected to your real data and workflows - Backend and API design for AI products: Node.js, TypeScript, PostgreSQL, AWS, Firebase - Flutter and FlutterFlow apps for iOS and Android, with subscriptions (RevenueCat), payments, push notifications, and App Store and Google Play releases - Taking over an AI-built prototype or unfinished app and getting it safe to launch: auth, data model, security, deployment HOW I WORK I start with the outcome and the data, propose an architecture before writing code, and ship in weekly milestones with a build you can test. I document what I hand over, so you own the system, not just the code. BEST FIT Founders and product teams who want one engineer to own the build from architecture to the stores. Send me a short note on what you are building, who will use it and what has to be true at launch. I will reply with how I would approach it.