Performance Tester (Permanent)

Network Contracting · Johannesburg North, Gauteng · (Market related)

Posted 1 September 2026

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Job Title: Performance Tester Start Date: 2026-09-01 - 2026-10-01 Vacancy Type: Permanent NCM003387 Sectors: Testing Location: Gauteng , Johannesburg North Salary: (Market related) Brief: non-funtional tester|peformance tester|performance engineer Can you break systems before users do? A leading organization is seeking a Performance Tester to join its growing technology team. This is an exciting opportunity to play a critical role in ensuring applications, platforms, and digital services remain stable, scalable, and high performing under real-world conditions. Detail: As a Performance Tester, you will be responsible for assessing system performance, reliability, scalability, and responsiveness across a range of applications and platforms. You will work closely with Development, Infrastructure, DevOps, and Business teams to identify bottlenecks, optimize system performance, and deliver exceptional user experiences. What's in it for You? Work on enterprise-scale applications and platforms Exposure to modern cloud and digital technologies Collaborate with skilled technical and business teams Opportunity to influence system performance and reliability Competitive salary and benefits package Key Responsibilities Design, develop, and execute performance testing strategies and plans. Conduct load, stress, spike, endurance, and volume testing. Analyse system behaviour under varying levels of usage and demand. Identify performance bottlenecks across applications, databases, APIs, and infrastructure. Monitor system resources including CPU, memory, network, and storage utilisation. Develop and maintain automated performance testing scripts and frameworks. Work closely with Developers, Architects, and DevOps teams to resolve performance issues. Produce detailed performance reports and recommendations. Validate system scalability and capacity against business requirements. Support performance testing activities throughout the SDLC and CI/CD pipeline. Experience & Skills of the Ideal Candidate 3+ years of experience in Performance Testing or Quality Assurance. Strong experience with tools such as JMeter, LoadRunner, Gatling, NeoLoad, BlazeMeter, or k6. Solid understanding of load, stress, endurance, spike, and scalability testing methodologies. Experience testing web applications, APIs, microservices, and distributed systems. Knowledge of performance monitoring and observability tools. Experience analysing application, database, and infrastructure performance metrics. Understanding of cloud platforms such as Azure, AWS, or Google Cloud. Familiarity with SQL and database performance tuning concepts. Experience working in Agile delivery environments. Excellent analytical, troubleshooting, and communication skills. Interested? Apply now and help build faster, stronger, and more resilient systems that can perform when it matters most. show more... For more information please contact: Thato Siwelo Apply

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Performance Tester (Permanent) at Network Contracting — Johannesburg North, Gauteng · JobAlertsZA