Founding Software Engineer – AI Infrastructure | DeepTech | On-site London | £100,000 – £180,000 + Equity

A well-funded, early-stage AI infrastructure startup is on a mission to remove one of the last major bottlenecks in the physical world. They’re building the core AI systems to power the next generation of real-world innovation.

They're looking for a high-ownership, deeply technical founding engineer to join their small, hands-on team. You'll ship fast, own features end-to-end, and help define both the product and the company from the ground up.

Responsibilities:

• Ship production-grade code from day one
• Own full-stack feature development across infra, tooling, and application layers
• Solve hard technical and operational problems, scaling infra, fine-tuning models, jumping on customer calls, or hiring the next teammate
• Write specs, take initiative, and push through ambiguity with minimal guidance

Qualifications:

• 2+ years of experience building and deploying real products
• Deep understanding of LLMs, multimodal models, agents, and tooling (e.g., LangChain, RAG, SFT/RL fine-tuning)
• Strong knowledge of infrastructure, including cloud platforms, containerization, relational/graph databases
• Track record of building quickly, independently, and to a high standard
• Bonus: Previous experience as a founder or early team member at a startup

Offer:

• Salary: £100k – £180k depending on experience, with meaningful equity
• Location: On-site in London (visa sponsorship & relocation covered)
• Environment: High-trust, in-person collaboration, and a tight-knit team deeply motivated by the mission
• Extras: All tools, meals, and support needed to move fast and focus on what matters



If you're excited by the idea of building category-defining infrastructure at speed and want to work with a team that shares that urgency, please apply with your CV.

Thanks

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