coderish
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: https://github.com/rishit-singh
Website: https://coderi.sh
LinkedIn: https://linkedin.com/in/rishit-singh
Resume: https://drive.google.com/file/d/1bS8PRZBXh_ACTe0BPAtfJplS6zF...
Email: [email protected]
Most recently, I have been the technical lead and one of the earliest engineers at Siift, where I built and now own much of the core platform behind a production AI product. I designed the persistent runtime coordinating 50+ specialized agents, typed tools, approval gates, scheduled actions, retries, recovery, and mutations against live product state. I also built the real-time SSE infrastructure and the multi-tenant data architecture behind conversations, research, sources, project state, generated assets, memory, and long-running workflows.
My ownership at Siift extends across the full product: backend services, agent architecture, frontend systems, authentication, teams and sharing, connectors, search, analytics, data modelling, caching, observability, deployment, AWS infrastructure, production debugging, and technical direction. I work directly with the founder on product and architecture decisions, then carry those decisions through implementation and production.
Before Siift, I worked directly with the CTO at GenRAIT to take a genomic data platform from requirements to production. I built resumable Go ingestion pipelines, integrity validation, retries, reconciliation, persisted job state, biological data models, metadata and expression-level search, and distributed-storage integrations.
At RentAHuman, I worked alongside the founder and Stripe’s integration team to build the initial payments infrastructure for a live marketplace with roughly 600,000 users. I owned authorization, manual capture, platform fees, payouts, refunds, disputes, warranty holds, webhook-driven state transitions, idempotency, reconciliation, messaging, and customer-support workflows.
I also lead the ongoing modernization of a live manufacturing ERP covering inventory, production, costing, quotations, logistics, invoicing, and exports. That work involves reverse-engineering legacy C#, VB.NET, MSSQL, and ASP.NET systems and replacing them incrementally with modular .NET and FastAPI services, PostgreSQL, Redis, Docker, and React without disrupting active business operations.
Outside of work, I am building NullDown, a persistent document, application, and memory substrate where humans and AI agents can operate against the same structured state. It supports snapshot-based persistence, structured mutations, indexed retrieval, conflict-safe co-authoring, embedded data, and projection into interactive interfaces.
I am looking for founding engineer, technical lead, full-stack, backend, and platform engineering roles. I am equally open to a strong full-stack engineering role where I can take substantial ownership and grow into or directly carry technical leadership. Across my recent work, I have already owned architecture, implementation, infrastructure, deployment, production operations, and technical product decisions across AI systems, payments, data platforms, and enterprise software.
Resume: https://drive.google.com/file/d/16mo1rLGjOMgCOYLcK8sTH5K5xm8... Email: [email protected] GitHub: https://github.com/rishit-singh Website: https://coderi.sh LinkedIn: https://linkedin.com/in/rishit-singh