Senior Systems Engineer

Assystem, Switch On

📍 Derby, Derbyshire, United Kingdom

Full-time architecture-and-engineering Posted June 06, 2026

Job Description

Company Description

Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements. 

Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions.

Job Description

Are you a Senior Systems Engineer with experience working with mechanical, electrical, and process systems in a highly regulated industry (Nuclear, Aerospace, Defence, etc.)? Assystem’s Defence & Decommissioning Strategic Business Unit is expanding and we are looking for skilled Systems Engineers for our Defence packages of work.

Your missions:

🎯 Requirement specification production / management

🎯 Interface Management

🎯...