Hays Technology
Senior Applied AI Engineer
Job Description
Salary: £100,000 - 110,000 per year
Requirements:- Around five or more years of relevant experience in software, machine learning, or data engineering, with examples of taking applications from proof of concept into production.
- Strong Python skills and experience developing backend services, APIs, and data pipelines; SQL experience is valuable.
- Hands-on experience with LLM applications, such as agent workflows, tool use, retrieval or RAG, and connecting models to trusted data.
- Experience deploying and operating applications on a major cloud platform, with a sound approach to CI/CD, automated testing, and monitoring.
- Understanding of AI evaluation, access controls, data protection, and auditability when working with sensitive information.
- Ability to make pragmatic architectural decisions, collaborate with other engineers, and explain technical trade-offs to stakeholders.
- Experience in investment management, wealth management, fintech, or another data-sensitive environment is advantageous; demonstrable production AI delivery is the priority.
- Design, build, and deliver backend services and APIs to support our new AI layer.
- Develop controlled integrations with internal data and agreed external information sources, ensuring outputs are current and traceable.
- Work with a Frontend Engineer to connect the AI capability to the user interface and agree delivery priorities.
- Build security controls, including permissions, audit logging, and safeguards for sensitive data.
- Establish automated tests and AI evaluations, then monitor accuracy, reliability, latency, and cost after launch.
- Release iteratively, use user feedback to improve the product, and document the systems you build.
- AI
- Backend
- CI/CD
- Cloud
- Frontend
- Support
- LLM
- Machine Learning
- Python
- RAG
- SQL
- Security
More:
We are an investment management firm developing the next stage of our portfolio technology platform. We are adding an AI layer to our existing operation and are looking for an engineer to help make it a secure, dependable capability for the wider team, working closely with colleagues across product and technical delivery. We offer a competitive sign-on and annual bonus package, a pension scheme, annual leave, hybrid working arrangements, and additional benefits in line with company policy.
last updated 39 week of 2026
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About Hays Technology
Hays Technology
London
IT
Skills & Technologies
Inferred from job description
Salary Insight
£105,000
This role
£75,000
UK median
This salary is 40% above the UK median for Senior roles (£75,000/yr).
Based on 2024–2025 UK technology sector benchmarks