https://jobs.co.uk/job/principal-system-test-engineer-yoh--d6431e93-96dd-4f8a-9629-bc7e77ee784c RSS feed for Principal System Test Engineer at Yoh. en-gb Fri, 21 Aug 2026 20:11:09 GMT https://jobs.co.uk/job/principal-system-test-engineer-yoh--d6431e93-96dd-4f8a-9629-bc7e77ee784c https://jobs.co.uk/job/principal-system-test-engineer-yoh--d6431e93-96dd-4f8a-9629-bc7e77ee784c Fri, 21 Aug 2026 11:52:27 GMT Location: Chilworth | Salary: 75000.00-75000.00 Annual | Type: Permanent | Principal System Test Engineer Southampton Hybrid Working Competitive Salary + Bonus + Benefits Not all test roles are created equal. Some involve executing test plans that somebody else has written. This isn''t one of them. We''re working with a company developing advanced 5G and satellite communications technology. They''re looking for a Principal System Test Engineer who can bridge the gap between specification, system architecture and real-world performance. You''ll be the person asking: "How should this system behave?" not simply: "Did it pass the test?" Working closely with development, architecture and product teams, you''ll define test strategies, develop automated test capability and help ensure complex wireless systems perform as expected in real-world environments. The Opportunity Define and implement system-level test strategies for advanced wireless communications products. Develop Python-based automated test frameworks and test capability. Work with RF equipment and wireless systems to investigate performance, diagnose issues and validate behaviour. Collaborate with engineers, architects and customers to translate requirements into meaningful test coverage. What We'... Permanent