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Python AI Developer
London, England, United Kingdom
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We are seeking a senior and experienced GenAI & Agentic Developer to build core

services, features and capabilities on an enterprise-grade Generative AI Platform for

a large global insurer. This role blends strong Python engineering with DevOps

enablement and hands-on integration of LLM technologies into secure, scalable

enterprise environments.


The ideal candidate will bring practical GenAI & Agentic development experience,

strong automation skills, and the curiosity to solve emerging engineering challenges

in this rapidly evolving space.


Key Responsibilities

  • Build and maintain backend services and APIs enabling secure access to LLM
  • capabilities.
  • Develop and optimise Python-based GenAI & Agentic components including
  • prompt orchestration, output validation, and evaluation tooling.
  • Integrate LLMs with enterprise systems, observability, and security frameworks.
  • Design and maintain CI/CD pipelines aligned to engineering standards (Azure
  • DevOps primarily).
  • Collaborate closely with platform leads, architects, and SRE teams to ensure
  • reliable operationalisation of GenAI services.
  • Support benchmarking, evaluation, and experiment tracking for LLM performance
  • and cost.
  • Contribute to RAG implementations and data access patterns supporting enterprise
  • use cases.
  • Help shape API standards, reusable patterns, and documentation for platform
  • adoption.
  • Troubleshoot and optimise performance across distributed systems and cloud
  • services.
  • Mandatory Skills & Experience
  • Strong Python backend engineering in production systems (inc FastAPI).
  • AWS services: EC2, EKS, S3, SQS, Kenesis/Firehose, Bedrock and AgentCore.
  • Working knowledge of GenAI technologies and Large Language Models.
  • Experience evaluating LLM performance and prompt handling complexities.
  • Solid DevOps mindset with CI/CD expertise and observability best practices.
  • Comfortable working in regulated enterprise environments with strict security
  • controls.
  • Experience integrating AI services into real-world apps or workflows.
  • Knowledge of authentication, secret management, network boundaries, and model
  • access governance
  • Preferred Skills
  • Kong API Gateway, Kong Mesh, Flux CD.
  • RESTful API development (FastAPI preferred), microservices, Terraform with
  • GitOps workflows.
  • IaC & Terraform experience with GitOps workflows.
  • Prompt redteaming & evaluation tools (like Promptfoo & Arize).
  • Experience with SQL (MySQL, PostgreSQL) and NoSQL (MongoDB, Cassandra)
  • databases 
  • Exposure to RAG patterns and vector search technologies.
  • Behavioural Competencies
  • Proactive self-starter who identifies gaps and drives solutions without waiting for
  • tickets.
  • Comfortable working in ambiguous emerging domains where best practice is
  • evolving.
  • Collaborative communicator able to influence and gain trust across engineering,
  • data, and product teams.
  • Curiosity to explore and adopt new GenAI techniques in a structured, secure way.
  • Bias toward automating everything to reduce toil and accelerate delivery.
  • What Success Looks Like
  • Efficient, secure, and reusable GenAI components delivered into production.
  • Improved engineering velocity through automation and DevOps best practices.
  • Stable services, with observability and evaluation built in from day one.
  • Platform teams and application teams love using what you build.
  • Clear documentation and fast onboarding for future use cases.


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