Back End Developer

Lead Backend Engineer

Remote (US) - hubs in SF and Boston - hybrid encouraged.

Up to $230,000 Base + Equity

I'm working with a well-funded engineering company building software that helps deploy complex algorithms across heterogeneous compute environments for defence, aerospace, semiconductors, and edge computing.

This role sits within the Modelling & Simulation team, building backend systems that represent complex real-world entities, operational workflows, and decision logic for mission-critical software.

This is not a full-stack role. It's not an AI tooling position.

It's a backend engineering role for someone who enjoys building robust Python systems that model complex domains and operate reliably in production.

You'll work on problems such as:

• Designing backend systems for modelling and simulation platforms

• Building Python services, APIs, and distributed backend systems

• Defining domain models, data contracts, and service boundaries

• Debugging complex production systems across services, databases, and infrastructure

We're looking for engineers who have:

• Strong production Python backend engineering experience

• Experience building modelling, simulation, defence, geospatial, gaming, logistics, planning, or other operationally complex systems

• Owned backend services, APIs, data models, and distributed systems from design through production

• Experience leading technical direction while remaining hands-on

• Strong software engineering fundamentals and a track record of shipping reliable production systems

Nice to have:

• Defence, government, or security-cleared experience

• Experience supporting mission-critical or regulated software

• Experience leading small engineering teams

• Exposure to heterogeneous compute or embedded systems

If you're a backend engineer who enjoys solving complex modelling problems and building production systems with real-world impact, I'd love to chat.