Founding Engineer

 

Description:

As a Founding Engineer, you’ll work across backend systems, data infrastructure and applied AI. This is a highly hands-on position suited to an engineer who enjoys difficult technical problems, significant ownership and building products from first principles.

You’ll be responsible for:

  • Building large-scale data pipelines that transform complex healthcare and policy documentation into structured, machine-readable rules using LLM-assisted extraction.
  • Designing and scaling APIs and emerging agent/tooling interfaces that serve computable healthcare rules with very low latency.
  • Translating complex clinical and coverage criteria into structured queries and formal logic that can be evaluated against patient data.
  • Taking end-to-end ownership of new products and technical initiatives, from identifying opportunities through architecture, implementation and production deployment.
  • Improving the reliability and performance of production systems as data and request volumes grow.
  • Experimenting with AI-assisted development, agents and new engineering tooling within a small, highly autonomous team.

What we're looking for:

  • 2–6 years of professional software engineering experience, primarily across backend, full-stack or data-intensive systems.
  • Strong Python development experience.
  • Experience designing, building and operating production systems at meaningful scale.
  • Evidence of building products or systems from 0→1 rather than solely maintaining established platforms.
  • Strong understanding of API and backend architecture.
  • A degree in Computer Science, Engineering, Mathematics or a closely related quantitative discipline.
  • Comfortable working in a fast-moving environment where engineers have significant autonomy and responsibility.
  • Able to work from the company’s London office five days per week.
  • Existing UK right to work or a transferable immigration status; the company cannot provide new visa sponsorship for this position.

Particularly relevant experience could include:

  • Performance-sensitive or low-latency engineering.
  • Distributed systems or high-volume data infrastructure.
  • Previous experience with Rust, C or C++ alongside Python.
  • Building developer platforms, APIs or interfaces for AI/agent systems.
  • Healthcare technology or working with complex regulated datasets.
  • Experience within quantitative trading, leading technology businesses or technically demanding venture-backed startups.

Organization Spectrum Search
Industry Engineering Jobs
Occupational Category Founding Engineer
Job Location London,UK
Shift Type Morning
Job Type Full Time
Gender No Preference
Career Level Intermediate
Experience 2 Years
Posted at 2026-10-01 4:49 pm
Expires on 2026-11-15