Senior Software Tester

Salary: £40,000 - 50,000 per year

Requirements:

• Strong experience as a software tester or QA engineer
• Experience testing complex distributed systems or backend platforms
• Familiarity with tools such as Postman or similar API testing tools
• Ability to understand system behaviour through logs, messages, and APIs
• Strong debugging and problem-solving skills
• Experience working within Agile or Scrum teams
• Familiarity with Jira or similar issue-tracking tools

Responsibilities:

• Test new features and improvements delivered during sprint cycles
• Design, implement, and maintain automated tests where appropriate
• Validate message-driven workflows across distributed services
• Test REST API endpoints supporting CRUD operations within the system
• Participate in release regression cycles and help validate production-ready builds
• Investigate issues, reproduce defects, and provide clear bug reports
• Work closely with developers and product teams to clarify requirements and ensure testability
• Investigate minor non-production environment configuration issues
• Understand data flows across services

Technologies:

• API
• Backend
• JIRA
• PLC
• Postman
• REST
• Security
• RabbitMQ

More:

We are SRT Marine Systems plc, a respected, established, and ambitious multinational company headquartered in the UK with a global customer base. We lead the next generation of Maritime Domain Awareness technologies, products, and systems that enhance security, safety, environmental protection, and sustainability across the marine sector. Our Senior Software Tester role supports our Marine Domain Awareness platform, working on complex streaming data, event-driven services, and CRUD APIs. This is a hybrid position based from our Cardiff office, with one day per week required in the office. We offer an exciting, rewarding, and challenging environment where high-quality results are recognised, innovation is encouraged, and talented people can make a real impact. We are committed to creating an inclusive workplace and actively encourage applications from all sectors of the community.

last updated 31 week of 2026