2508 IT & Software Developer jobs in the UK
Principal Engineer - AI/ML
£50,000 - 80,000
Just Eat Takeaway.com
Fleet Place 2, London
£50,000 - 80,000
Requirements
Must:
- Deep expertise in agentic frameworks (e.g. LangGraph, CrewAI, AutoGen) or custom multi-agent orchestration systems.
- Strong experience with vector databases, graph databases, and knowledge graph-based retrieval systems.
- Proven ability to design and scale AI infrastructure, including inference systems, GPU orchestration, and fine-tuning pipelines.
- Solid background in distributed systems, event-driven architectures, and high-scale backend engineering (Python, Go, or Rust).
- Strong collaboration skills, working closely with product, data, and engineering leaders to deliver shared outcomes.
- Ability to simplify complex systems and create clear, scalable architectural patterns for broader adoption.
- Experience building platforms that continuously learn and improve through data feedback loops.
- A mindset focused on innovation, challenging the status quo and driving forward-thinking technical solutions.
- Strong sense of ownership and accountability, balancing speed with quality and long-term impact.
- Passion for shaping the future of AI, with a responsible approach to ethics, safety, and system reliability.
Responsibilities
- Architect and evolve the Cognitive Runtime, enabling multi-step reasoning, tool usage, and self-correcting agent workflows.
- Build and standardise a Skill Catalog so agents can discover and interact with internal APIs and legacy systems seamlessly.
- Design scalable memory and context systems, bridging short-term interactions with long-term organisational knowledge.
- Develop next-generation AI infrastructure optimised for high-throughput inference, GPU orchestration, and non-deterministic workloads.
- Lead Continuous Evaluation frameworks, including automated testing, LLM-as-a-judge systems, and real-time safety monitoring.
- Create feedback loops that capture agent interactions to continuously improve model performance and system intelligence.
- Collaborate with data teams to build low-latency pipelines that transform raw data into retrieval-ready knowledge for AI systems.
- Define semantic governance standards, including embedding strategies, versioning, and caching for reliable agent performance.
- Influence engineering teams to adopt agent-ready architectures, ensuring systems are interoperable and machine-readable.
- Provide technical leadership on AI ethics, security, and cost efficiency, helping teams deliver responsibly at scale.
Description
At Just Eat Takeaway.com, we are a leading global online delivery platform with a vision to empower everyday convenience. Our teams forge connections internally and work alongside renowned brands, impacting millions. We foster a culture of fun, fast-paced movement and growth, where every employee is valued for their unique contributions. We emphasize inclusion, diversity, and belonging, encouraging our employees to be their authentic selves. Join us in shaping the future of AI and deliver meaningful solutions for our customers.
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You can find Machine Learning Engineer salaries in the UK here.
How many Machine Learning Engineer jobs are in the UK?
Currently, there are 2508 ML, AI openings. Check also: TensorFlow jobs, Python jobs, Computer-Vision jobs - all with salary brackets.
Is the UK a good place for Machine Learning Engineers?
The UK is one of the best countries to work as a Machine Learning Engineer. It has a vibrant startup community, growing tech hubs and, most important: lots of interesting jobs for people who work in tech.
Which companies are hiring for Machine Learning Engineer jobs in the UK?
Yellowbrick Data, UKTL, Wilson Computers LTD., Shiptheory, Government Communications Headquarters (GCHQ), Sage, Deeplinx Limited among others, are currently hiring for ML, AI roles in the UK.
The company with most openings is Experis as they are hiring for 82 different Machine Learning Engineer jobs in the UK. They are probably quite committed to find good Machine Learning Engineers.
The company with most openings is Experis as they are hiring for 82 different Machine Learning Engineer jobs in the UK. They are probably quite committed to find good Machine Learning Engineers.