SYSTEM TEST ENGINEER U
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 - Please apply for our other test roles!!
Candidates seeking isolated or code-only testing work
Anyone who doesn’t enjoy hands-on testing — cabling devices, configuring systems, and exploring real hardware