Work on Technology That Protects What Matters

At SiXworks, we build secure digital solutions that support Defence and National Security missions. Our teams work on complex problems where reliability, security, and speed of innovation matter.

We’re looking for a Senior Infrastructure Engineer who enjoys solving difficult technical challenges and wants their work to have real operational impact.

This role requires the highest level of UK security clearance.

What You’ll Do

As a Senior Infrastructure Engineer, you’ll help design, build, and deliver secure digital solutions in highly secure environments. You’ll work alongside engineers, architects, and delivery specialists to develop technology that enables faster, safer decision‑making for critical operations.

Your work may include:

• Maintain, improve, and secure SiXworks’ multi‑classification, virtualised, collaboration and development environments.
• Work with...