Software Engineer

We’re working with an early-stage, well-funded stealth AI company developing a new generation of reasoning technology.

The team brings together experience from frontier AI research, enterprise software, biotech, defence and aerospace, and is tackling some genuinely difficult problems at the intersection of AI, software engineering and large-scale computation.

They’re now looking for a Staff Software Engineer to join the London team and play a key role in turning cutting-edge research into robust, production-quality software.

This is a role for someone who enjoys getting deep into technical problems - whether that means designing systems, working on algorithms, solving concurrency challenges, or figuring out how to make complex workloads reliable at scale.

You’ll work closely with researchers, infrastructure engineers and application specialists, helping bridge the gap between research and production.

Your work will include:

• Designing and building core components of the company's software platform
• Developing backend services, APIs and supporting infrastructure
• Contributing to algorithms and the implementation of novel AI capabilities
• Translating research concepts and prototypes into maintainable, production-ready software
• Designing systems capable of handling large-scale reasoning and inference workloads
• Working with concurrent, parallel and distributed systems
• Making architectural decisions around performance, reliability and scalability
• Writing well-tested, maintainable code and contributing to engineering standards
• Participating in code reviews and technical design discussions
• Helping shape how AI-assisted development tools are used across the engineering organisation