Senior Developer

CBS Butler

London,  United Kingdom
On-siteAgency contract (e.g. ANÜ)

Description

Senior Developer - AI Enablement Platform

Remote

Up to £525 per day inside ir35

Active SC clearance

We are seeking an experienced Senior Developer to join a major government AI programme, supporting the development of an enterprise AI enablement platform.

The role will initially focus on building an Enterprise AI Gateway, integrating AI models, developer tooling and enterprise security controls. You will combine strong Back End and cloud engineering expertise with hands-on experience of Generative AI and Large Language Models (LLMs).

Key Responsibilities:

  • Design, develop and maintain production-quality Back End services and APIs.

  • Build integrations with AWS Bedrock, AI Gateways, enterprise identity and engineering tools.

  • Develop software solutions using Generative AI and LLM APIs.

  • Implement AI application patterns, including prompt management, structured outputs, tool calling and agentic workflows.

  • Develop REST APIs, gateways and distributed services.

  • Build and deploy cloud-based solutions, ideally using AWS.

  • Implement CI/CD pipelines, infrastructure automation and automated testing.

  • Ensure secure integrations through authentication, authorisation and secrets management.

  • Develop observable, scalable and maintainable services using logging, metrics and distributed tracing.

Essential Skills & Experience:

  • Strong Back End development experience using Python, TypeScript/Node.js, Java or Go.

  • Practical experience integrating Generative AI or LLM APIs into applications or engineering workflows.

  • Understanding of LLM application patterns, prompt engineering, context management and agentic workflows.

  • Experience with REST APIs, API gateways and distributed systems.

  • Strong AWS or comparable public-cloud engineering experience.

  • Experience with CI/CD, infrastructure automation and automated testing.

  • Knowledge of secure API integrations, authentication and authorisation.

Requirements:

  • Active SC Security Clearance is essential.

  • Ability to work remotely.

This is an excellent opportunity for a Senior Developer with a strong software engineering background and practical Generative AI experience to contribute to a significant government AI transformation programme.

If this Senior Developer role is of interest, apply now or email your CV to me at (see below)

Application form