About the team
Our Defence team is focused on building and embedding human‑centered AI solutions which give our nation a competitive edge in the defence sector. We collaborate with our clients to bring ethical, reliable and cutting‑edge AI to high‑stakes situations and maintain the balance of global powers essential to our liberty. Because of the nature of the work we do with our Defence clients, you will need to be eligible for UK Security Clearance (SC) and willing to work between 2 to 4 days per week on‑site with these customers which may require travel to locations throughout the UK. When not required on client sites, you’ll have the flexibility to work from our London office or remotely from elsewhere within the UK.
About the role
As a Senior Machine Learning Engineer, you’ll lead development and deployment of cutting‑edge AI systems for our diverse clients. You’ll design, build, and deploy scalable, production‑grade ML software and infrastructure that meets rigorous operational and ethical standards. This is an ambitious, cross‑functional role requiring a blend of technical expertise, engineering leadership, and confident client‑facing skills.
Responsibilities
* Lead technical scoping and architectural decisions for high‑impact ML systems.
* Design and build production‑grade ML software, tools, and scalable infrastructure.
* Define and implement best practices and standards for deploying machine learning at scale across the business.
* Collaborate with engineers, data scientists, product managers, and commercial teams to solve critical client challenges and leverage opportunities.
* Act as a trusted technical advisor to customers and partners, translating complex concepts into actionable strategies.
* Mentor and develop junior engineers, actively shaping our team’s engineering culture and technical depth.
Qualifications
* Understanding of the full ML lifecycle and significant experience operationalising models built with frameworks such as TensorFlow or PyTorch.
* Deep expertise in software engineering and strong Python skills, focusing on building robust, reusable systems.
* Hands‑on experience with cloud platforms (e.g., AWS, Azure, GCP), including architecture, security, and infrastructure.
* Extensive experience working with container and orchestration tools such as Docker and Kubernetes to build and manage applications at scale.
* Comfortable thriving in fast‑paced, high‑growth environments, demonstrating ownership and autonomy in driving projects to completion.
* Excellent communication skills, confidently guiding both technical teams and senior, non‑technical stakeholders.
* Senior (5+ years of experience).
Benefits
* Unlimited annual leave policy.
* Private healthcare and dental.
* Enhanced parental leave.
* Family‑friendly flexibility & flexible working.
* Sanctus coaching.
* Hybrid working.
EEO Statement
We strongly encourage applications from people of all backgrounds, ethnicities, genders, religions and sexual orientations.
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