Free cookie consent management tool by TermsFeed Generator Software Engineer (Backend / Systems) – AI Platform | London | Axioma Search
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Senior Software Engineer

About

This team is building the representation layer for how companies operate.

They acquire sticky B2B software businesses and plug them into a shared AI operating system. The challenge is turning fragmented, messy data across systems (CRM, billing, product, support, contracts) into clean abstractions that software can reason over.

Think: modelling how a company actually works – then using that layer to drive predictions, workflows, and eventually autonomous actions.

The engineering team is small (~5 today, scaling to ~15 ASAP). They’ve built maybe 3–5% of what the final system will become. Most of the core architecture, abstractions, and technical decisions are still ahead.

The founding team has an exceptional track record (including a prior multi-billion exit), and the business is already generating significant revenue across its portfolio.

The work is 0 -> 1, with immediate impact.

What you'll do

  • Build the core systems that ingest, structure, and model multi-source enterprise data
  • Design abstractions that unify different schemas, workflows, and business logic
  • Work on AI-native workflows (LLMs, agents, internal tooling) on top of that representation layer
  • Ship production systems end-to-end across backend and product surfaces
  • Make trade-offs between speed and long-term architecture in a fast-moving environment
  • Work directly with product and commercial teams on high-impact problems

Stack

  • Backend in Ruby, Python and Rust
  • Frontend in TypeScript / React
  • Heavy use of AI coding tools (Claude Code, Cursor, etc.)

The stack will evolve – they care more about how you think than what you’ve used.

What you'll need

  • Strong engineering fundamentals (language-agnostic)
  • Experience building production systems with real users and data
  • Solid understanding of system design, data modelling, and APIs
  • Ability to operate in ambiguity and break down complex problems
  • Product mindset and high ownership

Shortlisted candidates will be contacted within 48 hours.



Back to job listings
  • Location London
  • Salary / Compensation £100k–£160k + equity
  • Work Setup permanent , on-site
  • Sectors GenAI
  • Skills Ruby, Python, Rust, Distributed Systems, Knowledge Graphs, GenAI
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Role Contact

Bethany Sellar

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