CTO // Co-Founder // Early Stage Engineer (LLMs, Go and React)

Were looking for a high-caliber engineer to join as a Founding Engineer. You should be deeply hands-on with code, technically opinionated, and capable of building production systems from scratch. This is a role for someone who enjoys execution but also has the potential (or ambition) to lead technology at a company-defining level.

What You'll Do

  • Build and own core infrastructure and backend systems
  • Design and implement APIs, data models, and scalable services
  • Collaborate closely with founders on product direction and technical architecture
  • Ship code fast, validate assumptions, and iterate
  • Lay the groundwork for the future engineering team (tooling, processes, and architecture)

Core Technical Requirements

  • Proficient in one or more modern backend languages (e.g. Python, Go, TypeScript, Java, Rust)
  • Strong systems design skills you can model real-world systems and reason about scale, latency, and trade-offs
  • Comfortable building from zero greenfield work doesnt scare you; in fact, you prefer it
  • Experienced with cloud infrastructure AWS, GCP, or similar; IaC (Terraform, Pulumi, etc.) is a plus
  • Competent with databases and data modeling SQL and NoSQL, designing schema for scale
  • Comfortable writing tests and deploying production systems you care about code quality and reliability

Bonus Experience (Not Required, but Valuable)

  • Worked at a Pre-Seed or Seed-stage startup through to Series A
  • Built or deployed software used by enterprise customers
  • Experience with applied machine learning or MLOps (not just academic or notebook-based work)
  • Exposure to event-driven architectures, streaming systems (Kafka, etc.), or real-time data pipelines
  • Frontend experience in React, TypeScript, or similar modern frameworks

What We Offer

  • Early-stage equity and the opportunity to shape foundational decisions
  • High ownership, zero bureaucracy build what matters, fast
  • Founders who value engineers, ship code, and work closely with you
  • A role that grows with you if you have CTO potential, youll have a path

You should apply if:

Youre a product-focused engineer you solve problems through code, you like building things that work, and youve got the technical depth to back it up.

Company
GrowthStage
Location
City of London, Greater London, UK
Employment Type
Part-time
Posted
Company
GrowthStage
Location
City of London, Greater London, UK
Employment Type
Part-time
Posted