Fullstack Engineer

The Role

You'd join the engineering team to own features end to end, with a strong lean toward the interfaces and workflows clients interact with directly. This is a product engineering role. Unlike our Forward Deployed Engineers, you are not embedded with clients or responsible for running deployments in the field. You turn operational needs and field feedback into a durable core product.

Who We're Looking For

We filter hardest on mission drive, low ego, attention to detail, and first-principles problem solving. We want builders who can move across the stack while keeping the user-facing experience sharp.

Must-have

• Strong full-stack production experience, with genuine comfort owning both interfaces and backend systems

• Solid TypeScript and React, plus Python experience or the ability to become productive quickly with FastAPI

• A track record of taking features from an ambiguous problem through release and iteration

• Product judgement and attention to detail, especially in workflows used directly by customers

• Comfort deciding what to build now, what to make durable, and what to leave out

• EU or UK citizenship (contractual requirement tied to our defence contracts)

Nice to have

• Experience with PostGIS, GIS, mapping, or other geospatial systems

• Experience with LangGraph, LangChain, or multi-step ML and LLM workflows

• Experience deploying software on-prem, offline, or as an appliance

• Experience with front-end performance and data-dense interfaces

• Prior work in defence, government, or dual-use technology

What's In It For You

• Competitive package (top 0.1% of compensation in Europe: base + equity)

• Paris or London based

• End-to-end ownership of product used in real operational environments