The operating system for agentic AI in high-consequence environments. Backed by Costanoa Ventures.
About the role
Nebula, our agentic harness, turns days of manual synthesis into minutes of analysis. Whether analysts trust it depends heavily on the interface: how an agent's work streams in, how its sources and reasoning are shown, and how quickly someone can move through dense, connected data under pressure. Found on 1752vc Careers, the job board for startup and VC roles.
What they're looking for
- Real depth shipping production front-end software in React and TypeScript. We care about what you have owned and the depth of your experience, not a year count, engineers with 2+ years who have owned meaningful front-end systems are welcome
- Experience building interfaces for real-time or streaming data, such as WebSockets or server-sent events, including the state model behind them
- Real depth in component design, state management, and render performance, with examples of problems you profiled and fixed
- Clean, well-tested code, including component and end-to-end tests
- Enough backend fluency to read and shape API contracts, Python is a plus
- Comfort taking a loose ask and turning it into a working interface without a finished design
More about this role
Lumbra builds the vendor-neutral operating system for agentic AI in high-consequence environments. In our first ten months we won four fully competed prime contracts across the U.S. Government, every one of them deploying into classified spaces. We are live on JWICS. We were selected from a field of 200+ companies for a defense innovation challenge and won it. We beat two established defense primes on the same program and earned the follow-on, now in execution.
Nebula, our agentic harness, turns days of manual synthesis into minutes of analysis. Whether analysts trust it depends heavily on the interface: how an agent's work streams in, how its sources and reasoning are shown, and how quickly someone can move through dense, connected data under pressure.
We want a frontend engineer to own that experience. You build the React and TypeScript application analysts use every day, make it fast and legible, and make sure it works the same in commercial cloud and on disconnected, classified networks.
This role is on site in Arlington, Virginia. It is not eligible for remote or hybrid work.
~70% building. Product features in React and TypeScript, from conversation interfaces to workflow and...
Browse similar: Startup jobs