Sid
Sidhantha Poddar portrait

👋 Hi, I'm Sid

AI EngineerFounderExplorer

CTO at Chimère · Founder of Neuralabs

I want to build agentic systems that are autonomous in every sense — not automation waiting on a human to approve each step, but software with an identity of its own, able to hold something, earn, spend, and answer for what it did.

The thread through all of it

How the security puzzles, the sensors, the contact tracing and the payment rails turn out to be one problem.

I fell for computers young and started coding before I knew it could be a job. Security was the first thing that really held me — taking something apart to find where it gives, then closing the gap. It was never about breaking in. It was the puzzle.

I studied computer science at VIT Vellore and spent most of it in hackathons. Dynamic Angles is still my favourite: a low-latency pointing system that fused gyroscope, accelerometer and magnetometer readings and used the Earth's own gravity as the reference frame to map a human arm in 3D space, in real time, on a microcontroller. No cameras, no external rig — sensors and the planet.

Since then I've led twelve engineers building contact tracing that detected exposures three times better than the DP-3T standard, second of 2,000+ teams at the European Commission's EU vs Virus and named among India's top 15 student innovators, and spent two and a half years at McKinsey building AI systems for industries that make physical things. I'll leave that work out of this; it won the firm's global award for innovation and client impact, and it taught me the difference between a clever idea and one that survives contact with reality.

The thread through all of it is the same. I like problems where the answer has to be fast, physical and correct, and where being approximately right is the same as being wrong.

That's Chimère. An Indian freelancer invoices a US client and waits days for money that arrives lighter than it left — intermediaries, forex markups, capital frozen in transit. We settle it in 20 seconds at 1% all-in. The hard part was never moving money; it's the compliance India requires on every inbound payment — purpose codes, FIRA, the paperwork — which we do automatically instead of manually. And because the same rails expose a native endpoint for AI agents, the payer doesn't have to be a person at all. Money should move as fast as the thing that decided to spend it.

What I'm building

Companies and long-horizon projects, ordered by where my attention currently sits.

All ventures →

Selected work

Agent tooling, developer tools, contact tracing, and motion capture built from a gravity vector.

Writing

Notes on machine learning, decentralized systems, algorithms, and building useful technology.

Read everything →

Open source

Live public repositories, pulled directly from GitHub with a resilient static fallback.

Browse repositories →

Keep exploring

Follow the branches of what I know—and what I’m learning next.

The Peepal Tree of Knowledge turns skills into a living map rather than a flat progress-bar list.

Open skill tree