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Mayank G.
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Mayank G.

AI Agent Developer | LangChain RAG & Autonomous Flows | Python + MERN

Startups and product teams hire me to turn AI ideas into software that actually ships - not demos, not prototypes, but production systems real users depend on. I'm a full-stack engineer specializing in AI-powered applications: I build the product (React/Next.js, Node.js, MongoDB) and the intelligence layer (LLM integrations, AI agents, RAG pipelines) as one connected system - so you're not stitching together a frontend dev, a backend dev, and an "AI person" separately. In 10+ years / 25 projects, I've helped clients build: → AI chatbots and support agents that [reduced response time / cut support costs] → Autonomous workflow agents that replaced [X hours/week] of manual work → RAG-based knowledge systems trained on internal company data → Full SaaS platforms with GPT-4/Claude integration from MVP to production WHAT I BUILD Full-Stack Product Development - React.js / Next.js frontends, Node.js + Express APIs - Python + Django backends for data-heavy or AI-integrated platforms - MongoDB architecture, authentication, admin dashboards - React Native mobile apps - SaaS platforms built for scale, not just launch AI & LLM Engineering - OpenAI GPT-4, Claude, Gemini, LLaMA integrations - Autonomous AI agents (LangChain, LangGraph) - RAG pipelines with Pinecone, ChromaDB, FAISS, Weaviate - AI voice agents (Twilio, Deepgram, ElevenLabs, VAPI) Automation & Workflow Engineering - n8n / Make automation connecting CRMs, APIs, and internal tools - Lead generation and reporting pipelines - Process automation that removes manual busywork HOW I WORK Clear scoping before code, async updates so you're never guessing on status, and architecture built to be handed off or scaled - not a black box only I can maintain. I use modern AI-assisted tooling (Copilot, Cursor) to move faster without cutting corners on code quality. If you're trying to decide whether an AI feature is worth building, or you already know what you need and want it built right the first time — send me a message with a short description of your project. I respond quickly and I'm direct about what's realistic on timeline and budget.

🇮🇳Noida, India$15/hr100% JSS4.96 (9)Since Jan 2016
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Earnings and projects

MRR (estimate)
≈$0

An estimate from an earlier read

World#42,556 / 412k
🇮🇳Country#6,777 / 45.9k
Revenue, last 30 days
$0
Total earnings
$93k

Billed in all: $103k

World#42,556 / 412k
🇮🇳Country#6,777 / 45.9k
Per project
$6.2k
Projects, last 6 months
0
World#209,850 / 412k
🇮🇳Country#23,217 / 45.9k
Projects in all
15

Across 16 contracts

6% fixed94% hourly
World#161,377 / 412k
🇮🇳Country#22,350 / 45.9k

Earnings, last 30 days

$103kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$100k$102k$104k$106kOct 8Oct 23Nov 7

No data since Nov 5, 2026.

Skills