Senior Ai Engineer – Generative Ai & Machine Learning

Metrica Recruitment; Greater London; Hybrid; GBP 90,000 - 150,000; Full time

Benefits offered by this job

London-based hybrid working

Flexible working

International client projects

Technical and personal development

Lead AI engineering capabilities

Job summary

We are partnering with a global professional services organisation to recruit a Lead AI Engineer for London. You will blend deep technical expertise with senior client engagement, shaping AI strategies and delivering production-grade AI solutions across data-rich, regulated industries.

You will lead end-to-end engineering delivery for LLMs, RAG, and generative architectures, while guiding cross-functional teams and establishing guardrails for secure deployment.

Qualifications

• Expert Python skills with strong experience across PyTorch, TensorFlow and modern AI frameworks.
• Hands-on expertise with LLMs, prompt engineering, RAG, vector databases and generative architectures.
• Production experience across AI/ML deployment, evaluation, security and MLOps/LLMOps.
• Experience with AWS, Azure or GCP and enterprise-scale AI environments.
• Strong stakeholder communication, technical leadership and team management experience.

Responsibilities

• Lead the design and delivery of production-grade AI and Generative AI solutions.
• Shape AI strategies with senior stakeholders and align technology with business goals.
• Design scalable pipelines covering data, models, evaluation and secure deployment.
• Oversee LLM, diffusion and other generative model development and operationalisation.
• Establish evaluation, security and responsible AI guardrails for production systems.
• Mentor cross-functional teams and influence reusable AI engineering standards.

Skills

Python

PyTorch

TensorFlow

LLMs

MLOps

Tools

AWS

Azure

GCP

LangChain

Job description

We are working with a global professional services organisation delivering complex technology and transformation programmes for major international clients. You’ll join a specialist AI and engineering environment in London, working across client engagements and internal teams. The role offers hybrid flexibility, senior stakeholder exposure and the opportunity to shape high-impact Generative AI solutions across data-rich and regulated industries.

The Role

As a Lead AI Engineer, you’ll combine deep technical expertise with senior client engagement to solve complex business problems through Generative AI and machine learning. You’ll shape AI strategies, lead end-to-end engineering delivery and influence how production systems are designed, evaluated, secured and operated. Your scope will span LLMs, RAG, generative architectures, MLOps/LLMOps and cloud platforms, while working closely with technical teams, business stakeholders and leadership. You’ll also help strengthen reusable engineering practices and guide cross-functional AI teams.

• Lead the design and delivery of production-grade AI and Generative AI solutions.
• Shape AI strategies with senior stakeholders and align technology with business goals.
• Design scalable pipelines covering data, models, evaluation and secure deployment.
• Oversee LLM, diffusion and other generative model development and operationalisation.
• Establish evaluation, security and responsible AI guardrails for production systems.
• Mentor cross-functional teams and influence reusable AI engineering standards.

Benefits and Perks

You’ll join an inclusive, flexible environment that values technical expertise, wellbeing and meaningful professional impact. The role is London-based with hybrid working and exposure to varied international client projects.

• London-based hybrid working across office, remote, virtual collaboration and client environments.
• Flexible working designed to support career commitments and home life.
• Access to varied international client projects and complex AI transformation challenges.
• Technical and personal development through complex delivery and collaboration with experienced specialists.
• Opportunities to lead, influence and shape AI engineering capability at scale.

Requirements

You’ll bring strong technical depth alongside the ability to influence senior stakeholders and delivery teams.

Must-Have

• Expert Python skills with strong experience across PyTorch, TensorFlow and modern AI frameworks.
• Hands-on expertise with LLMs, prompt engineering, RAG, vector databases and generative architectures.
• Production experience across AI/ML deployment, evaluation, security and MLOps/LLMOps.
• Experience with AWS, Azure or GCP and enterprise-scale AI environments.
• Strong stakeholder communication, technical leadership and team management experience.

Nice-to-Have

• Experience in regulated or data-rich sectors such as financial services or healthcare.
• LangChain, LangGraph or comparable open-source Generative AI tooling.
• SQL, Spark or Hadoop experience, plus relevant cloud AI certifications.
• Patents, publications or meaningful open-source contributions demonstrating AI thought leadership.