Senior Systems Engineer

Location: UK (Hybrid - minimum 3 days per week on-site)
Sector: Nuclear / Defence / Highly Regulated Infrastructure
Employment Type: Permanent / Staff

About the Role

Assystem is seeking an experienced Senior Systems Engineer to join its expanding Defence & Decommissioning business unit. This role will support major UK nuclear and defence programmes, working across mechanical, electrical, and process systems within complex, safety-critical environments.
You will play a key role in defining system architecture, managing requirements, and ensuring system-level integrity across the full project lifecycle, from concept through to delivery and verification.
This position is ideally suited to a systems engineer with experience in highly regulated industries such as nuclear, defence, or aerospace, wh...