🚀 Principal Software Engineer – AI Infrastructure Platform (London, Hybrid)

A fast-growing AI infrastructure company is hiring a Principal Software Engineer to help build and scale their cloud platform used by ML teams worldwide. If you enjoy working across the stack but love the backend — especially Golang — this is a standout opportunity.

You’ll work on high-impact features around model evaluation, data tooling, workflow orchestration, and robust API architecture. Expect deep technical ownership, modern tooling, and a highly collaborative engineering culture.

🔍 What You’ll Be Doing

• Leading development of backend services and APIs (heavily Go-leaning)
• Building intuitive TypeScript/React UIs where needed
• Designing scalable, resilient platform components
• Contributing to a containerised, Kubernetes-based cloud environment
• Working closely with research engineers to productionise ML tooling
• Setting engineering standards, mentoring, and influencing architecture

🛠️ Tech You’ll Work With

Golang, TypeScript, React, Kubernetes, Docker, Terraform, AWS/GCP, Python (for integration), GitHub Actions.

✅ What They’re Looking For

• Strong experience building production backends in Go
• Solid full-stack skills with TypeScript/React
• Experience with REST API design and API-first development
• Good testing discipline and clean engineering practices
• Comfort working with containers, cloud infra, and CI/CD
• Someone who enjoys autonomy, collaboration, and solving deep technical problems

🎁 What’s on Offer

• Competitive salary + meaningful equity
• Hybrid working (3–4 days London office)
• Flexible holidays
• L&D budget + regular technical sessions
• High-ownership role in a domain with huge impact