EW Systems Engineer

EW Systems Engineer
- Porton Down (SP4) – Permanent – Full-Time
- On-site Benefits

• Salary £40,000 - £65,000 DOE
• 25 days annual leave inclusive of up to 3 days Christmas shut‑down
• Buy or sell up to 5 days’ annual leave
• Annual Wellbeing allowance
• Two pension schemes to choose from
• Private Medical Insurance + discounts for additional family members
• Life Assurance scheme up to 4 x salary
• Share Save scheme
• Electric/Hybrid Car leasing scheme
• Cycle to work scheme
• Retail discounts
• Career development support

At MASS, we solve complex defence and security challenges through systems engineering, software, electronic warfare and operational analysis, helping to deliver mission‑critical capability to UK Defence and its partners.

Join our growing team at Porton Down, Salisbury (SP4), working directly alongside our technical customer, Dstl, one of the UK's leading science and technology organisations. This role sits at the heart of a major national defence transformation programme, where you'll help shape the next generation of UK defence capability.

Working embedded with the customer, you'll operate with a high degree of autonomy and influence, collaborating directly with scientists, engineers and military end users to translate real‑world operational challenges into robust engineering solutions. You'll apply both traditional Systems Engineering principles and Model‑Based Systems Engineering (MBSE) techniques across the full engineering lifecycle, from requirements capture and system design through to integration, verification and validation.

This is a technical role where you are the direct point of contact for scientists, mathematicians, and physicists to discuss needs for future developments in the Electronic Warfare domain.

Unlike many engineering roles, this position offers the opportunity to work closely with the customer throughout the entire lifecycle, influencing capability from concept through to operational deployment. You'll see your work tested in the real world, supporting in‑field trials across the UK and internationally while helping deliver current and next‑generation technologies that make a genuine operational impact.

• Experience delivering Systems Engineering across the engineering lifecycle
• Experience with requirements management using DOORS, Enterprise Architect or similar
• Experience producing Systems Engineering documentation
• Experience in verification, validation and acceptance testing
• Experience engaging technical and operational stakeholders
• Experience with a high-level understanding of Electronic Warfare (EW) principles or exposure to EW‑related systems

• Model‑Based Systems Engineering (MBSE), including SysML/UML
• Coding experience (JavaScript or MATLAB/Simulink)
• Defence industry experience, particularly within Electronic Warfare (EW)
• Service leavers are encouraged to apply. Experience gained working with Electronic Warfare (EW) systems in the Armed Forces—whether in operational, maintenance, support or acquisition roles—would be highly beneficial.

• A UK National and eligible to work in the UK
• Eligible to obtain and maintain a UK Government SC‑level security clearance

Wellbeing is at the heart of our culture. We want our people to thrive, both professionally and personally, and offer a range of wellbeing initiatives including Mental Health First Aiders, an Employee Assistance Programme and a variety of support services to help you be at your best.