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Lead Platform Engineer

Seed-stage AI, property technology

Victoria, London

Four days a week in the office

£100,000–£150,000 plus equity

A seed-stage company building an AI system of action for property management and lettings. This is the Head of Engineering's technical second in command: you build the hardest parts of the platform, own major architecture decisions, lead delivery and manage remote engineers, while remaining one of the strongest hands-on builders in the team.

What you will own

  • Architect and build scalable backend systems and APIs, design through production
  • Microservice and event-driven architectures supporting real-time operational workflows
  • Lead a small team, drive delivery, stay accountable for what ships
  • Set the standard for agentic engineering, including Claude Code workflows
  • Partner with the Head of Engineering on technical strategy

What they are looking for

  • Around 5–8 years hands-on software engineering
  • Already a lead or technical second in command, or an exceptional senior ready for it
  • Deep Node.js and NestJS, alongside strong Python
  • REST API, microservice and event-driven architecture experience
  • Production cloud-native, ideally Google Cloud and Kubernetes
  • PostgreSQL, MongoDB and vector systems such as Qdrant
  • Daily use of Claude Code or equivalent agentic workflows

The process

Screening call with the founding team · timed technical assessment · technical follow-up · in-person half-day final

Your contact at Thyme

Jack Cummins

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