Senior Full Stack Engineer

Notch is the AI operating system built for enterprises running complex, regulated operations. We deploy purpose-built agents that resolve real workflows end to end, compliantly and at scale, across insurance and financial services. Our platform connects customer and employee interactions with back-office systems to automate complex workflows — all delivered with the highest standards for auditability, explainability, and governance.Backed by top-tier VCs, Notch has raised $45 million to date, including a $30 million Series A in March 2026 led by Headline, with participation from Lightspeed, Jibe Ventures, Illuminate Financial, Munich Re, and Phoenix.About the Role:We're looking for really good engineers who want to build great software.Our platform runs hundreds of thousands of AI-driven conversations and workflows for enterprise customers who can't tolerate a wrong answer. The hard problems here don't sit in one layer — they sit in how the layers fit together: an LLM pipeline that has to be deterministic exactly where it matters, a data model where a leak between customers is a severity-1, long-running workflows that have to survive restarts and retries, and one product that has to ship into a shared cloud, a dedicated single-tenant environment, and a customer's own data center without becoming three different products.You'll own problems all the way through from the product decision, through the data model and the backend, to what the user actually sees. Small team, real ownership, decisions that stick.What You'll Do:Own features end to end: product conversation → schema → API → UI → how it behaves in production.Design the systems behind our AI agents — pipelines, orchestration, retries, guardrails, evaluation — so behavior is predictable and explainable.Build backend services and data models that stay correct and stay fast as volume grows — across shared, single-tenant, and on-prem deployments.Build the product surfaces our customers and our delivery teams use to configure, monitor, and audit agents.Own your code in production: CI, deploys, observability, alerting, and the debugging that follows.Work on how we ship, build and release pipelines, environments, and the infrastructure that lets one codebase deploy into very different customer environments.Make the call on where complexity is worth it and where things should stay boring.Raise the bar around you: code review, design review, mentoring, and the standards that keep a codebase alive two years from now.