Building AI systems, developer tools, and the infrastructure that keeps them reliable under pressure.
Piyush Gambhir
Software Engineer II
Gurugram, India
AI systems · Developer tools · Infrastructure
Built, shipped,
and operated.
I’m a Software Engineer II at Spyne in Gurugram, India. I build dealership voice agents, own the telephony around them, and contribute to the LiveKit Agents SDK. My work spans Python, TypeScript, and Go.
Infrastructure economics62%Voice-agent infrastructure cost in our deployment, down from $0.26 to $0.10 per minute with the LiveKit migration.Read the cost breakdownProduction architectureOne contract.A control plane with interchangeable voice runtimes, shared call profiles, and signed lifecycle events.Explore the architectureOpen-source contributionLiveKitUpstream contributions to the Python and Node Agents SDKs, informed by production needs.Review the contributions
Selected work
Systems in the field
Production infrastructure, developer tools, and open experiments. Every project is shaped around a constraint that mattered.
Conversational Voice AgentsA provider-neutral control plane with interchangeable LiveKit and Pipecat workers for production voice agents.Jun 2026Telephony Voice SimulatorA local-first test platform for voice agents, AMD, IVRs, PBX routing, live carrier behavior, recordings, and automated grading.Jul 2026TelephonyA provider-agnostic NestJS backend for SMS, voice, verification, lookup, phone numbers and A2P 10DLC. Product code talks to a capability, not a vendor SDK.Jul 2026ReckonA read-only agent workspace for investigating production incidents across observability, CI/CD, cloud, databases, and source control.Mar 2026Document OCRLocal-first OCR for passports and Indian KYC documents, on RapidOCR and PP-OCRv5. Packaged for Python, HTTP, Docker and Node.js. No image leaves your network.Jul 2026PDF EverythingA unified PDF console and REST API with nineteen tools for conversion, rendering, extraction, and document workflows.Jul 2026
All projectsNotes for overthinkers
Writing from the work
Notes on AI systems, browser automation, infrastructure, and the craft of making software dependable.
AI Made Building Faster. We Still Have to Decide What to Build.Small teams can ship more with AI. But unclear requirements still send us back to rebuild. My thoughts on planning, prototypes, and engineering judgment.Sep 2026One API, Many Carriers: Designing a Provider-Neutral Telephony LayerProduct code should talk to a capability, not a vendor SDK. Lessons from running Twilio, Vonage and Telnyx behind one interface.Sep 2026STIR/SHAKEN, CNAM, and Why Nobody Answers Your AI's CallsYour agent can be flawless and still show up as Spam Likely. What I learned about caller identity and number reputation running outbound voice agents.Sep 2026The Real Cost of a Voice Agent MinuteOur infrastructure cost fell from $0.26 to $0.10 per minute. How to meter each component, compare operating costs, and protect conversation quality.Sep 2026Answering-Machine Detection Is Turn-Taking's Evil TwinBefore a voice agent can decide when to speak, it has to decide whether anyone is there. Why AMD is hard, and why you cannot test it by calling your own phone.Sep 2026
All writing