Senior System Engineer

Job Description

Senior Systems Engineer – £60k–£65k + Bonus – Sliverstone(Hybrid)

UK Citizenship Required | Eligible for SC Clearance

We’re working with an advanced technology firm specialising in mission-critical communications, RF monitoring, and tactical systems. As part of their continued growth, they’re looking to hire a Senior Systems Engineer to lead technical development across cutting-edge product lines in defence and secure communications.

This is an exciting opportunity to shape the architecture of next- systems, lead cross-disciplinary collaboration, and see your work make a real-world impact in security and infrastructure.

The Role

As a Senior Systems Engineer, you’ll play a key role in delivering high-performance, integrated systems across three primary technology domains:

• Secure Data Transmission – Real-time IP and video data links
• RF Spectrum Monitoring – Systems that monitor, analyse, and manage electromagnetic activity
• Tactical Solutions – Products supporting signal intelligence, direction finding, and counter-threat capabilities

You’ll collaborate with teams in RF, hardware, embedded, and mechanical engineering to define and deliver complete solutions across both new product development and client-led projects.

Key Responsibilities

• Lead system architecture and interface definition
• Manage full-lifecycle systems engineering: requirements capture, traceability, design, integration, and verification
• Coordinate cross-functional engineering teams and external resources
• Approve and contribute to design documentation, SoWs, test plans, and technical support materials
• Lead design reviews and ensure engineering development stays on time, on spec, and on budget
• Support bids, proposals, risk registers, and technical progress reports

What We’re Looking For

• 5+ years in a senior systems engineering role
• Proven experience delivering complex systems in secure, regulated environments
• Expertise in systems engineering tools, methods, and the full development lifecycle
• Strong problem-solving, documentation, and communication skills
• Comfortable balancing hands-on engineering with leadership and project oversight

Desirable Experience

• 7+ years’ experience in relevant sectors
• Background in electronics, embedded, RF, mechanical, or software engineering
• Familiarity with Concept of Operations development and systems-level modelling
• Exposure to defence, surveillance, or communications technologies

Salary & Benefits

• Salary: £60,000 – £65,000 (depending on experience)
• Annual Bonus: 3–6% of salary
• Holidays: 25 days (plus option to purchase 5 additional days via salary sacrifice)
• Pension: 5% employer contribution (matched by employee)
• Life Cover
• 40-hour working week
• Hybrid working: 3 days onsite (Northamptonshire) / 2 days remote

Eligibility:

Applicants must be British and eligible to obtain SC clearance.