GenAI Python Developer X4

GenAI Python Developers x4 Location: Hybrid/London Available as permanent or contract: Contract Rate: £400–£450 per day (Inside IR35, initial 6-9 months) Permanent Salary: £60k–£70k per annum GenAI | Python | Enterprise AI Platform - Build the core of a next-gen Generative AI ecosystem for a global finance services business. If you’re a strong Python engineer who’s genuinely excited by the possibilities of GenAI in real enterprise environments, this is a brilliant opportunity. You’ll be working on a large-scale Generative AI platform that’s reshaping how a major global finance services business builds, deploys, and adopts AI across the business. Expect hands-on engineering, real problem solving, and plenty of collaboration as you help architect, automate, and operationalise LLM-driven services at scale. What You’ll Be Doing: • Building backend services and APIs that give secure, governed access to LLM capabilities • Developing Python-based GenAI components, including prompt orchestration and evaluation tooling • Integrating LLMs with enterprise systems, observability layers, and security frameworks • Designing and maintaining CI/CD pipelines using Azure DevOps • Working closely with platform leads, architects, and SRE teams to ensure stable, scalable operations • Supporting benchmarking, evaluation, and experiment tracking to measure LLM performance and cost • Contributing to RAG implementations and vector-driven retrieval patterns • Helping shape platform patterns, reusable components, and clear documentation • Troubleshooting performance issues across distributed systems and cloud services What You’ll Bring: • 5+ years of backend engineering experience, with strong Python at the core • Hands-on exposure to GenAI technologies and Large Language Models • Practical understanding of LLM evaluation, prompt handling, and operational complexities • A DevOps-first approach with experience in CI/CD, observability, and automation (Azure DevOps preferred) • Confidence working in regulated enterprise environments with tight security controls • Experience integrating AI or ML services into real-world applications • Knowledge of authentication, secret management, networking, and model access governance Bonus Points For: • Kong API Gateway, Kong Mesh, Flux CD • AWS stack: EC2, EKS, S3, SQS, DynamoDB, Bedrock • RESTful API development with FastAPI, microservices, Terraform, GitOps workflows • Prompt evaluation tools such as Promptfoo • SQL and NoSQL experience: MySQL, PostgreSQL, MongoDB, Cassandra • Exposure to RAG patterns and vector search technologies What Success Looks Like: • Secure, reusable GenAI components running smoothly in production • Faster engineering delivery through automation and DevOps maturity • High observability and strong evaluation built in from day one • Platform teams and application teams genuinely enjoying what you build • Clean documentation and an onboarding flow that makes adoption effortless Role Details: • Rate: £400–£450 per day Inside IR35, or permanent £60k–£70k salary If you’re keen to help shape one of the most exciting GenAI platforms in the enterprise world, drop me a message and we can get things moving. Interviews won’t stay open for long.