DVT

Senior Non-Functional Tester (3rd party B2B)

Melrose Arch, GautengPart TimePosted Jul 22, 2025

Job Title:                     Senior Non-Functional Tester



We are seeking a highly skilled and experienced Senior Non-Functional Tester to join our team. The ideal candidate will possess a strong background in non-functional testing, including performance, reliability, and observability testing, with hands-on experience in various testing tools and frameworks.

Design, develop, and execute comprehensive non-functional test plans including performance, load, stress, scalability, security, reliability, and availability testing.


Required qualifications and experience

  • Relevant testing process qualification (ISTQB or equivalent)
  • Non-Functional Testing (NFT) test preparation, execution, and reporting experience, including presenting results
  • 5+ years of relevant experience
  • Experience with API Testing including chaining requests, parameterisation, and functional proving
  • Ability to create testing frameworks using the following tools:
  • - Postman
  • - JMeter
  • - Load Runner
  • - Azure
  • Experience with observability tools (ideally Datadog)


Good to have

  •  Smart Meter experience (SMETS 1 & 2)
  • Energy domain knowledge
  • Business Continuity Non-Functional Testing experience (in addition to performance)
  • Experience with Jira and Confluence

 

 

 Responsibilities

  • Collaborate with development, infrastructure, DevOps, and functional QA teams to understand architecture and business requirements.
  • Analyze test results to identify bottlenecks, memory leaks, and performance degradation; provide detailed root cause analysis and recommendations.
  • Establish benchmarks, test environments, and monitoring solutions to support ongoing system performance evaluation.
  • Conduct security and vulnerability assessments in collaboration with the InfoSec team.
  • Develop and maintain automated scripts for continuous performance testing as part of CI/CD pipelines.
  • Provide guidance and mentorship to junior testers and contribute to best practice sharing and process improvement.
  • Prepare detailed test reports and dashboards for stakeholders, including risk assessments and mitigation strategies.

 

 

 

Keep exploring