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Senior Software Engineer - AI

Job in City of Westminster, Central London, Greater London, England, UK
Listing for: Compare the Market
Full Time position
Listed on 2026-01-01
Job specializations:
  • Software Development
    AI Engineer, Senior Developer
Job Description & How to Apply Below
Location: City of Westminster

As a Senior Software Engineer (AI Engineering), you'll take a leading role in designing and implementing agent-ready systems and developer tools. You'll build production-grade software that enables safe, scalable, and AI-augmented engineering, while mentoring and guiding engineers to raise the bar across the team.

Some of the Great Things You'll Do
  • Lead the design and development of services that support AI agent interaction
  • Drive the application of GenAI to modernise, refactor, and accelerate legacy systems
  • Define and implement APIs, contracts, and metadata aligned with the Model Context Protocol
  • Shape and evolve internal tooling that supports AI-native SDLC workflows
  • Influence architecture decisions, conduct design and code reviews, and lead incident response
What We'd Like To See From You
  • Proven backend development expertise, with experience delivering complex, high-scale systems
  • Ability to mentor, guide, and upskill engineers within the team
  • Familiarity with or eagerness to advance in:
    • Model Context Protocol for managing context and tool interfaces for agents
    • LLM integration patterns including prompt orchestration, multi-agent planning and tool calling
    • Retrieval-Augmented Generation (RAG) for dynamic context injection
    • Model selection / A/B testing / observability
What Will Success Look Like
  • Delivers high-quality, maintainable code that meets business needs
  • Takes ownership of complex problems end-to-end, from design through deployment
  • Rapidly learns, applies, and advocates for emerging AI-native engineering patterns
  • Raises the bar for technical excellence, system simplicity, and agent‑readiness
  • Actively contributes to the growth and effectiveness of the wider engineering team
Why Compare the Market?

We're a business built for pace and performance. Here, you'll be encouraged to think differently, act boldly, and deliver brilliantly in a culture that values results and rewards progress. We believe diverse teams make better decisions, and we're committed to creating an inclusive workplace where everyone feels empowered to grow, contribute, and thrive.

We've carved a meerkat-shaped niche and we're looking for ambitious, curious thinkers who thrive in a fast-moving, high-impact environment. If you love accountability, embrace challenge, and want to make a real difference, you'll fit right in.

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Position Requirements
10+ Years work experience
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