About Arjun
Who is Arjun Thakur?
A Principal AI Engineer, AI Architect, and Fractional CTO based in India, working remotely worldwide. He builds production agentic AI systems end-to-end — LangGraph agent graphs, RAG pipelines, and WebRTC voice agents — with 15+ years at Amazon, Agoda, and high-growth startups, and is the founder of Yuvan.
What is Yuvan?
A voice-first AI math tutor for CBSE Class 10 students. It runs on a LangGraph state machine, RAG over NCERT content on pgvector, the OpenAI Realtime API for sub-1.5s voice latency, a math verifier safety net, and a semantic FAQ cache — on a B2B2C model with paying schools.
Which technologies does Arjun specialize in?
LangGraph, LangChain, RAG (pgvector, Supabase), OpenAI GPT-4o and Realtime API, Anthropic Claude, WebRTC voice, MCP, LangSmith evals, FastAPI and async Python, Java and Spring Boot, AWS, and distributed systems.
Training & Mentoring
Does Arjun offer 1:1 (private) AI training?
Yes — private 1:1 mentoring in agentic AI, LangGraph, RAG, MCP, and AI architecture, tailored to your goals and codebase, live online across all time zones.
What topics can Arjun train on?
Agentic AI and LangGraph, RAG and vector search, MCP, voice AI (OpenAI Realtime + WebRTC), AI-native FastAPI backends, prompt engineering and evals, plus backend and system-design foundations (Java/Spring, microservices, AWS, databases, HLD/LLD). See the Training page.
Is training available for teams and companies?
Yes — team workshops (2–4 days, live online or on-site) get an engineering team onto one set of production-grade patterns, customized to your stack and a real use case.
What level is the training for?
From engineers new to AI (with Python basics) through senior/staff engineers and teams. 1:1 tracks are paced to you; workshops are tuned to the group's level.
Consulting, Hiring & Speaking
What consulting services does Arjun offer?
Hands-on AI engineering consulting (agentic systems, RAG, voice AI), AI architecture and design reviews, and Fractional CTO engagements for AI-first products — embedded with your team as a forward-deployed AI engineer (FDE), or scoped as a project.
Is Arjun available for full-time roles?
He's open to Lead/Principal AI Engineer and AI Architect roles (full-time or contract), remote-first, and for the right opportunity available to relocate internationally. See the resume.
Does Arjun do conference talks and workshops?
Yes — conference talks, workshops, college guest lectures, placement-office training, and corporate upskilling, including past sessions at IITs and NITs. Available worldwide. See the Speaking page.
Logistics
Where is Arjun based and what time zones does he work across?
India (IST), working remotely with clients worldwide and scheduling across US, European, and Asian time zones.
How much do training and consulting cost?
It depends on format (1:1 vs team), duration, and customization. Book a free 30-minute intro call for a clear proposal.
How do I book or get in touch?
Book a free 30-minute intro call via the Contact page, or email arjun@arjunthakur.dev with your goals, format, and timeline.
Can I hire Arjun as a freelance agentic AI developer?
Yes — end-to-end builds, embedded contracts, or rescue of stuck agent projects. Remote, worldwide. See Hire an Agentic AI Developer.
Does Arjun build voice AI agents?
Yes — OpenAI Realtime + WebRTC voice agents with sub-1.5s p95 latency, proven in his live product Yuvan. See Voice AI Development.
Does Arjun build MCP servers?
Yes — custom Model Context Protocol servers with production-grade permissions, evals, and audit trails. See MCP Development.
Can Arjun run a hands-on AI workshop for our team or event?
Yes — 2 hours to 2 days, where every attendee ships something that runs. See AI Workshop Facilitator.
Is Arjun available as a podcast guest or for collaborations?
Yes — interviews, co-created content, dev-rel, and partnerships. See Podcast Guest & Collaborations.
For Business & Non-Technical Leaders
I'm not technical — can Arjun still help my business with AI?
Yes. Much of the work is with non-technical leaders — founders, CEOs, and heads of learning & development. He translates AI into plain business terms, helps you decide where it actually pays off, and gives you the clarity to make good decisions and hold vendors accountable. See AI Adoption for Business.
Can Arjun help our business reduce costs with AI?
Yes — he finds where your team spends repetitive effort, identifies the highest-ROI automation, builds it with production discipline, and measures the actual saving. Honest ROI, no magic numbers. See Reduce Costs with AI.
We're an L&D team — can Arjun train our people on AI?
Yes — corporate AI training and team upskilling is a core offering, for engineers and non-technical staff alike. Trained teams and thousands of learners with PhysicsWallah, TalentSprint, Simplilearn, Masai School, NIT Jalandhar, and IIT Kanpur. See Corporate AI Training.
What does a fractional CTO do, and is it right for my startup?
Senior technical leadership part-time — AI strategy, architecture, hiring, unblocking — without a full-time CTO's cost or equity. Best for early-stage and AI-first startups, especially non-technical founders. See Fractional CTO for Startups.
How do we know if our business is ready for AI, or where to start?
Start with the problem, not the technology — prove value on one or two high-value, low-risk workflows first. Arjun offers an honest, vendor-neutral readiness assessment and roadmap. See AI Adoption for Business.