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Senior Software Engineer​/Senior AI Engineer

Job in Greater London, London, Greater London, W1B, England, UK
Listing for: LexisNexis Risk Solutions
Full Time position
Listed on 2026-09-11
Job specializations:
  • Software Development
    AI Engineer (Applied/Software), Machine Learning/ ML Engineer, Backend Developer, Python
Salary/Wage Range or Industry Benchmark: 90000 - 130000 GBP Yearly GBP 90000.00 130000.00 YEAR
Job Description & How to Apply Below
Position: Senior Software Engineer / Senior AI Engineer
Location: Greater London

Senior AI Engineer

Are you excited about building intelligent systems powered by cutting-edge AI technologies? Do you enjoy designing models that turn complex data into impactful solutions?

About the team:

Embedded Innovation Teams are cross-functional squads embedded within our segments to rapidly turn internal AI experimentation into validated, reusable solutions, building the capabilities we need to deliver customer value and growth. We work problem-first rather than tool-first, directly inside segment and function teams, improving the internal workflows that help our people deliver better outcomes for customers, faster.

About the role:

As a Senior AI Engineer, you will build and ship AI-powered features as part of a cross-functional Innovation Squad, working inside a business function. You will deliver the set technical direction to production standard, working autonomously within a defined problem, building and testing tool use, retrieval pipelines, and agent workflows, integrating AI capabilities into enterprise systems, and contributing to evaluation, observability, and guardrails.

You will hold a high bar on code quality, flag risks and blockers early, and work alongside host-function stakeholders to make sure what you build fits real workflows, not assumed ones. You'll also support handover and capability-building so the solution is owned and operable after the squad moves on.

Key Responsibilities:
  • Build prototypes and proofs of concept and ship agentic AI solutions to production standards within a defined technical approach.
  • Implement and test tool use, retrieval pipelines, and agent workflows.
  • Contribute to evaluation, observability, and guardrails for agentic systems.
  • Integrate AI capabilities into existing enterprise workflows and systems.
  • Maintain high code quality and documentation so patterns can be reused.
  • Flag technical risks and blockers early.
  • Interface with technical peers to finalise requirements and complete moderately complex bug fixes.
  • Build solutions for reuse, contributing to patterns, reference implementations and starter kits so work done in one function can be picked up by another.
  • Instrument solutions to capture outcome data against baselines.
  • Work alongside host-function stakeholders to ensure the build fits real workflows, not assumed ones.
  • Support handover and capability-building in the host function so the solution is owned and operable after the squad moves on.
  • Keep abreast of new technology developments.
  • Take on related responsibilities as the squad's needs evolve.
Requirements:
  • Engineering experience: 3+ years in software engineering, with hands-on experience building LLM-powered applications in production (RAG, tool-augmented agents, or agentic workflows).
  • Education:

    BS in Engineering, Computer Science, or equivalent.
  • Ways of working:
    Comfortable working autonomously within a defined problem and pushing back when something doesn't make sense, and delivering in short, time-boxed cycles where validated outcomes matter more than perfect solutions.
  • Agentic AI / LLMs:
    Building RAG pipelines, tool-augmented agents, and agentic workflows; familiar with prompt engineering, context management, evaluation, and observability.
  • Agent fundamentals:
    Understands how agents use memory, tools, and retrieval to complete multi-step tasks.
  • Enterprise integration:
    Integrating AI into existing systems via APIs and data pipelines.
  • Cloud: AWS, Azure or GCP.
  • Delivery: CI/CD, modern SDLC, TDD and code review.
  • Data:
    Working with relational, columnar and vector stores, grounded in sound data-modelling principles.
  • Languages:

    Python, Java, Type Script/JavaScript, SQL and relevant AI SDKs.
  • Communication:
    Clear written and verbal communication with technical peers and stakeholders.
  • Measurement:
    Instrumenting…
Position Requirements
10+ Years work experience
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