Senior/Principal AI Software Engineer

Salary: £60,000 - 90,000 per year

Requirements:

• Extensive practical software engineering experience, including technically leading engineering teams and delivering complex, production-quality systems at scale.
• Deep, current experience building agentic AI applications, including LLM orchestration, Retrieval Augmented Generation (RAG), tool and function calling, MCP, memory, evaluation, and agent harnesses.
• Strong Python software engineering experience.
• Demonstrable knowledge and experience with LangGraph and agentic development frameworks.
• Experience implementing or evolving engineering standards, DevSecOps practices, and secure development lifecycles.
• Strong understanding of CI/CD platforms, pipelines, and modern software engineering practices.
• Experience defining or evolving an engineering operating model, ideally an AI-native model built around agentic harnesses and automation.
• Experience delivering solutions on AWS, ideally with Amazon Bedrock, containers, and Infrastructure as Code.
• A solid grounding in secure-by-default engineering, observability, and production operability.
• Practical knowledge of AI security practices, including the OWASP Top 10 for LLM and Generative AI applications and OWASP guidance for agentic AI.
• Previous experience working within Information Security or Security engineering environments would be beneficial.
• Frontend development experience would be advantageous.

Responsibilities:

• Provide technical leadership of the build, turning target architecture into production-quality software across a portfolio of agentic AI applications, APIs, and services.
• Apply engineering standards, DevSecOps practices, and a secure development lifecycle, integrated with our central CI/CD platform, pipelines, and golden paths.
• Help build an AI-native software delivery operating model built on agentic harnesses and automation.
• Develop reusable frameworks, libraries, and platform capabilities that accelerate delivery and ensure security is built in by default.
• Deliver the most complex components and integrations across the agentic AI roadmap.
• Contribute to solution and low-level architecture, working alongside established software and solution architects.
• Provide technical assurance through code review, quality standards, and mentoring to raise engineering standards across the wider team.
• Remain hands-on throughout the development lifecycle, including building AI-native applications incorporating agentic logic.
• Collaborate with software and solution architects to define target architectures and coordinate the workloads of software engineers.
• Work with a good degree of autonomy to deliver a defined set of outcomes across complex and current problems in AI security.

Technologies:

• Agentic AI
• AI
• AWS
• CI/CD
• DevSecOps
• Frontend
• LLM
• MCP
• OWASP
• Python
• RAG
• Security
• Cloud

More:

We are supporting a major Information Security AI transformation that is modernising and automating the security operating model with agentic AI. This is a 6-month initial contract for both a Principal and Senior hands-on engineer, working remotely with flexible onsite options depending on experience and suitability. The role is inside IR35, with a rate of up to £800 per day, and focuses on building AI-native applications and agentic solutions primarily in Python and AWS.

last updated 38 week of 2026