AI / Machine Learning Engineer

Job Description

Job Req ID: 59770

Posting Date: 17/06/2026

Function: Software Engineering

Location: London, Birmingham, Bristol, Belfast, Glasgow, Manchester

Salary: Competitive + great benefits

Working Style: 3 days a week from office, 2 days anywhere

About the role

We are looking for 2* AI / Machine Learning Engineer to build and operate production‑grade AI systems, with a strong focus on agentic workflows, model deployment, and MLOps practices. The role involves taking AI solutions from concept to production, ensuring they are scalable, observable, and reliable.

You will work at the intersection of machine learning, LLM‑based systems, and software engineering, building intelligent services that run in real‑world environments.

As a team we believe in the agile principles of openness, transparency and continuous improvement, which underpin strong relationships with our business stakeholders.

There will be lots of opportunities to explore new technologies, develop new skills, innovate and grow as an engineer.

What you’ll be doing

• Design and implement agentic workflows, including multi‑step and stateful AI pipelines.
• Build systems that leverage large language models (LLMs) for reasoning, orchestration, and automation
• Build and expose AI capabilities through APIs and backend services
• Operate and support AI systems running on-premise and cloud
• Work collaboratively with engineering, data science, and product teams to deliver end‑to‑end solutions
• Contribute to architectural decisions and engineering best practices
• Demos and knowledge transfers to stakeholders around product developments.

Essential Skills / Experience

• A background in machine learning and applied AI engineering
• Experience building agent‑based or agentic AI systems
• Hands‑on experience with LangChain and LangGraph
• Experience with writing code according to software engineering best practice.
• Proficiency in an object-oriented or functional programming language.
• Knowledgeable in software version control with Git or SVN.
• Experience working with cloud technologies on AWS, GCP or Azure.

Desirable Skills / Experience

• Practical experience with building on AWS.
• Experience deploying ML or statistical models into production environments.
• Experience with MLOps concepts and tooling.
• Python

Our Package

Tailored benefits make a real difference. That’s why we offer a comprehensive range to support your growth, wellbeing, and everyday life.
You can design the package to suit you and your lifestyle. Your core benefits include:

• 10% on target annual bonus
• Access to an online private GP 24/7 for you and your immediate family
• Market-leading paid carers leave with up to 2 weeks off
• Equalized maternity, paternity, and adoption leave – 18 weeks’ full pay and 8 weeks’ half pay
• Discounted EE and BT products, including mobile and broadband
• Market leading Pension scheme – 5% from you and 10% from us
• Holiday purchase scheme

You can select additional benefits, including healthcare, dental, gym memberships and more when you’re ready.
Ready to connect for good and help shape the future? Apply now

BT Group is the UK’s leading communications group and the holding company behind some of the country’s most recognised brands – including BT, EE, Openreach and Plusnet. Our purpose is as simple as it is ambitious: we connect for good. Our customers include consumers, small, medium and large businesses, public sector organisations and other communications providers.

BT Group’s role is about setting direction, unlocking value and creating the conditions for our brands and businesses to thrive.

Having come through the most capital-intensive phase of our fibre investment, our focus now is on what comes next – simplifying how we operate, using technology and AI to work smarter, and organising ourselves to serve customers better and grow sustainably. Group teams shape strategy, policy, brand, capital allocation and transformation, helping the whole organisation perform at its best.

We have a singular culture that unites all our people: we are customer-first challengers, who are committed, clear and connected. These behaviours unite us as one team to deliver for our colleagues, our customers, our stakeholders and the country. Joining BT Group means working at the heart of a business that matters to the UK, with the opportunity to shape decisions, influence outcomes and help set the future course of one of the country’s most important companies.