Principal Mechanical Engineer – Microwave Engineering

UK Atomic Energy Authority • culham, england • Posted June 29, 2026

Position Overview

Principal Mechanical Engineer – Microwave Engineering

£71,815 (inclusive of Specialist Allowance) + excellent benefits including outstanding pension.

Location: Culham, Oxfordshire.

Onsite working is expected for 3 days a week, however flexible working arrangements may be supported.

Employees must complete an online Baseline Personnel Security Standard (BPSS) and the Disclosure & Barring Service (DBS) checks for criminal convictions, and may be required to undergo a search of open source data.

The Role

As a Principal Mechanical Engineer in the Engineering Future Projects Group, you will be deployed into the Spherical Tokamak for Energy Production (STEP) Programme. You will lead the mechanical design, integration, and delivery of cutting‑edge microwave-based fusion plasma heating and current‑drive systems, shaping mechanical architecture, driving innovation, and ensuring robust performance under extreme loads. You will guide multi...