Great ideas come from different minds. That’s why we bring together engineers, scientists, analysts, and creatives from every background — and give them the trust, tools, and freedom to make a difference. What connects us is the mission: solving meaningful problems and building capability that protects what matters most.

And as the challenges evolve, so do we — working on the technologies that will shape tomorrow, not just today.

Machine Learning Engineer

Join Us in Securing the Nation’s Future
Are you ready to make a real impact? At the forefront of national security, Roke are a trusted partner delivering mission-critical solutions that protect the UK and its interests.

As a Machine Learning Engineer at Roke, you’ll help build ethical, secure AI solutions that turn complex data into insight for national security teams. You’ll join a supportive, collaborative group of engineers, scientists and analysts, working on projects where your ideas can make a real difference.

Based from Woking or Romsey, you’ll work across AI, machine learning, cyber, cloud and data challenges, with some time on client sites in the London area when projects need it.

What you’ll be doing

• Design, build and deploy machine learning models that solve real-world national security problems.
• Work with multidisciplinary teams to integrate AI into secure, mission-critical systems.
• Prototype new algorithms and approaches, turning research into practical tools.
• Use MLOps practices to make model pipelines scalable, maintainable and secure.
• Apply large language models to agents, retrieval systems and user-facing workflows.

What you’ll bring
We know great candidates may not tick every box. The must-haves are below; the rest can be developed with support from the team.

Must-haves

• Strong Python coding skills.
• Hands-on experience building or deploying machine learning models using tools such as PyTorch, TensorFlow or scikit-learn.
• Good software engineering habits, including Git, testing and CI/CD basics.
• Curiosity about AI/ML research and the judgement to apply it responsibly and securely.
• Experience with containerization for deploying and scaling AI solutions (Docker).

Nice to have

• Experience with LLMs, prompt engineering, RAG, fine-tuning, agents, evaluation using frameworks such as LangChain or LangGraph.
• MLOps experience with tools such as MLflow, DVC or Weights & Biases.
• Practical experience deploying AI solutions on AWS.

Why ROKE
At ROKE, you’ll work with smart, welcoming teams on technology that helps protect lives and national security. Learning is part of how we work, with mentoring, coaching and the ROKE Academy supporting your growth.
Competitive salary, plus benefits and bonus (dependent on skills and experience).
You’ll also have 30 days’ holiday plus bank holidays, private medical insurance, and health, wellness and family support - plus other benefits.
Relocation packages are available for suitable candidates.

Where you’ll work
Choose Woking or Romsey as your base. Woking is close to London customer links and a short walk from the station. Romsey offers a countryside setting near the New Forest, with parking and an on-site gym. A proportion of your time may be spent on client sites in the London area.

Clearance
This role requires you to be eligible and willing to achieve DV clearance. Eligibility criteria are available on the gov.uk website.

Next step
Ready to use AI to make a meaningful impact? Apply with your latest CV - we’d love to hear from you.