Non-Functional Tester

• Design, prepare, execute, and report on non-functional testing activities
• Develop and maintain performance and API testing frameworks
• Conduct performance, load, stress, and resilience testing
• Validate API functionality through request chaining, parameterisation, and functional verification
• Analyse test results and present findings, risks, and recommendations to stakeholders
• Collaborate with development, operations, and product teams to identify performance bottlenecks and reliability risks
• Support observability and monitoring initiatives to improve system performance and operational visibility
• Contribute to test strategy, planning, and continuous improvement activities

• ISTQB certification or equivalent testing qualification
• Proven experience in non-functional test planning, execution, and reporting
• Experience presenting testing results and recommendations to stakeholders
• Strong API testing experience, including request chaining, parameterisation, and functional validation/proving
• Hands-on experience creating and maintaining testing frameworks using Postman, JMeter, LoadRunner, and Azure-based testing environments
• Experience with observability and monitoring tools, preferably Datadog
• Strong analytical and problem-solving skills
• Excellent communication and stakeholder engagement abilities
• Ability to interpret performance metrics and identify root causes
• Attention to detail and a quality-first mindset
• Ability to work independently and as part of a multidisciplinary team
• Strong reporting and documentation skills
• Smart Meter experience (SMETS1 and SMETS2) advantageous
• Energy or utilities industry experience advantageous
• Business Continuity and resilience testing experience advantageous
• Experience with Jira and Confluence advantageous
• Exposure to disaster recovery and operational resilience testing programmes advantageous

• Continuous staff training
• Internal speaking and training opportunities
• Sponsored technical events across the AWS & Azure ecosystem