System Test Engineer

SoCode Limited; Highfields Caldecote; On-site; GBP 45,000 - 60,000; Full time

Job summary

A leading technology firm in the UK seeks a System Test Engineer to validate RF spectrum monitoring systems. Ideal candidates have a technical degree or equivalent experience, strong attention to detail, and proficiency with Linux systems. Responsibilities include end-to-end testing, validating GUI applications, and maintaining test setups. The role emphasizes hands-on testing and user experience insights.

Qualifications

• Degree in a relevant technical field or equivalent hands-on experience.
• Strong attention to detail and 'break it to improve it' mindset.
• Comfortable with Linux-based systems and command-line tools.

Responsibilities

• Test CRFS systems end-to-end, focusing on their real-world performance.
• Validate GUI-based control applications and embedded firmware.
• Conduct regression testing during firmware and software releases.

Skills

Attention to detail

Linux-based systems proficiency

Clear communication

User-first perspective

Curiosity about complex systems

Drive to learn

Education

Degree in a relevant technical field

Tools

Jira

TestRail

Job description

SYSTEM TEST ENGINEER

We build world-leading RF spectrum monitoring and geolocation systems used by defence, intelligence, and security organisations worldwide. We're looking for a System Test Engineer to validate the real-world usability, performance, and robustness of these systems — ensuring that what works in the lab also works in the field.

This isn't a software QA role. It's about thinking like a user, operating at the system level, and stress-testing complex hardware-software-firmware combinations as they'll be deployed by real operators.

If you've worked in technical support, lab environments, or field integration, and you're ready to step into an engineering role — this could be your perfect next move.

What you'll be doing

• Test CRFS systems end-to-end, focusing on how they perform in real-world use.
• Validate GUI-based control applications and embedded firmware across multiple product variants.
• Conduct regression testing during firmware and software releases.
• Reproduce, triage, and document issues in the bug tracking system, collaborating closely with engineers to drive fixes.
• Build and maintain test racks integrating CRFS hardware with third-party RF test equipment.
• Support the upkeep and evolution of the System Test Lab and its infrastructure.
• Ensure all testing aligns with CRFS's Quality Management System (QMS) standards.
• Contribute to test plans, campaign documentation, and internal reports that shape product quality.

What you'll bring

• Degree in a relevant technical field or equivalent hands-on experience in lab, support, or test environments.
• Strong attention to detail and a “break it to improve it” mindset.
• Comfortable with Linux-based systems and command-line tools.
• Clear and structured communicator — you can document bugs precisely and explain behaviour clearly to engineers.
• A user-first perspective — you spot UX glitches, edge cases, and inconsistencies others miss.
• Curiosity about complex systems spanning hardware, firmware, and software.
• Drive to learn, experiment, and grow into deeper technical ownership.

Nice to have

• Experience in hardware or embedded systems testing.
• Basic Python scripting for test automation or data analysis.
• Familiarity with bug tracking or test management tools (e.g., Jira, TestRail).
• Exposure to RF systems, networking, or spectrum analysis tools — training provided.

Not what we're looking for: Pure SDETs or software-only testers, candidates seeking isolated or code-only testing work, or anyone who doesn't enjoy hands-on testing.