Software engineer / technical lead with 6+ years building production AI, backend, full-stack, data, and enterprise systems. I’m strongest in high-ownership environments where product behavior, state, reliability, infrastructure, and user-facing execution all have to work as one system.
Most recently I’ve been a Technical Lead / Founding Engineer at Siift, where I built much of the production AI platform: a Python/PydanticAI runtime coordinating 50+ specialized agents, PostgreSQL-backed durable execution and memory, retries/checkpoints/recovery, model-provider routing, retrieval, evaluations, and the real-time FastAPI/Redis/SSE → React/Zustand product path. I also own substantial parts of infrastructure, deployment, releases, production debugging, authentication, teams, permissions, connectors, search, scheduled workflows, and product architecture.
At RentAHuman.ai, I shipped the payments/bounty MVP for a marketplace with 600k+ users, including Stripe Connect escrow, payouts, refunds, disputes, idempotent state transitions, reconciliation, messaging, and notifications.
Previously, I built resumable Go ingestion/data pipelines for a genomic research platform and led modernization of a ~20-year-old manufacturing ERP across C#/.NET, Python, PostgreSQL/SQL Server, Redis, RabbitMQ, Docker, React, and cloud infrastructure.
Outside work I’m building NullDown, a persistent context and memory runtime for agents: versioned/snapshot-based state, structured mutations, branching and replay, retrieval/context compilation, and near-lossless compaction so information removed from an active agent session remains queryable instead of disappearing.
Looking for founding engineer, senior backend, senior full-stack, AI/agent infrastructure, or product/platform engineering roles where I can own substantial systems end-to-end.
coderish · · focus · HN ↗
Software engineer / technical lead with 6+ years building production AI, backend, full-stack, data, and enterprise systems. I’m strongest in high-ownership environments where product behavior, state, reliability, infrastructure, and user-facing execution all have to work as one system.
Most recently I’ve been a Technical Lead / Founding Engineer at Siift, where I built much of the production AI platform: a Python/PydanticAI runtime coordinating 50+ specialized agents, PostgreSQL-backed durable execution and memory, retries/checkpoints/recovery, model-provider routing, retrieval, evaluations, and the real-time FastAPI/Redis/SSE → React/Zustand product path. I also own substantial parts of infrastructure, deployment, releases, production debugging, authentication, teams, permissions, connectors, search, scheduled workflows, and product architecture.
At RentAHuman.ai, I shipped the payments/bounty MVP for a marketplace with 600k+ users, including Stripe Connect escrow, payouts, refunds, disputes, idempotent state transitions, reconciliation, messaging, and notifications.
Previously, I built resumable Go ingestion/data pipelines for a genomic research platform and led modernization of a ~20-year-old manufacturing ERP across C#/.NET, Python, PostgreSQL/SQL Server, Redis, RabbitMQ, Docker, React, and cloud infrastructure.
Outside work I’m building NullDown, a persistent context and memory runtime for agents: versioned/snapshot-based state, structured mutations, branching and replay, retrieval/context compilation, and near-lossless compaction so information removed from an active agent session remains queryable instead of disappearing.
Looking for founding engineer, senior backend, senior full-stack, AI/agent infrastructure, or product/platform engineering roles where I can own substantial systems end-to-end.
GitHub: <a href="https://github.com/rishit-singh" rel="nofollow">https://github.com/rishit-singh
Website: <a href="https://coderi.sh" rel="nofollow">https://coderi.sh
LinkedIn: <a href="https://linkedin.com/in/rishit-singh" rel="nofollow">https://linkedin.com/in/rishit-singh
Resume: <a href="https://drive.google.com/file/d/1bS8PRZBXh_ACTe0BPAtfJplS6zF7m3fu/view?usp=sharing" rel="nofollow">https://drive.google.com/file/d/1bS8PRZBXh_ACTe0BPAtfJplS6zF...
Email: rsrishitsingh@gmail.com