Senior Perfomance Tester

SavageOne Pty Ltd; Johannesburg; On-site; ZAR 600 000 - 800 000; Full time

Job summary

A leading company in Johannesburg is seeking a Senior Performance Tester to lead performance testing efforts. The role involves designing strategies, conducting various testing types, and collaborating with cross-functional teams to enhance application performance. Ideal candidates will have extensive experience in performance testing and strong technical leadership skills.

Qualifications

• 5+ years of experience in performance testing.
• Hands-on experience with performance testing tools.

Responsibilities

• Design and implement performance testing strategies and frameworks.
• Conduct load, stress, and scalability testing.
• Analyze performance metrics and drive optimization efforts.

Skills

Performance Testing

Communication

Troubleshooting

Education

Bachelors degree in Computer Science

Tools

JMeter

LoadRunner

Gatling

Dynatrace

New Relic

Grafana

Prometheus

AppDynamics

CI/CD tools

Job description

Job Overview:

We are seeking an experienced and highly skilled Senior Performance Tester to lead the performance and load testing efforts across our applications and systems. You will be responsible for developing robust performance testing strategies, mentoring junior team members, and working closely with cross-functional teams to ensure the scalability and responsiveness of our platforms in production-like environments.

Key Responsibilities:

• Design and implement end-to-end performance testing strategies, frameworks, and tools.

• Conduct load, stress, endurance, spike, and scalability testing to validate system behavior under various conditions.

• Analyze system performance metrics, identify bottlenecks, and drive optimization efforts with engineering teams.

• Collaborate with architects, developers, DevOps, and database administrators to improve application performance.

• Provide technical leadership, mentorship, and guidance to junior performance testers.

• Create detailed reports and dashboards with actionable insights for both technical and non-technical stakeholders.

• Integrate performance testing into CI/CD pipelines and ensure performance testing is part of the software development lifecycle.

• Contribute to capacity planning and provide input on infrastructure and architecture decisions based on performance insights.

Required Skills and Experience:

• 5+ years of experience in performance testing, with a strong background in test design, scripting, execution, and analysis.

• Hands-on experience with performance testing tools such as JMeter, LoadRunner, Gatling, BlazeMeter, or k6.

• Deep understanding of performance engineering concepts and non-functional testing.

• Strong scripting and automation skills (e.g., JavaScript, Python, Bash, Groovy).

• Proficiency in analyzing system-level performance using tools like Dynatrace, New Relic, Grafana, Prometheus, or AppDynamics.

• Solid understanding of web and distributed system architecture (REST APIs, microservices, message queues, etc.).

• Experience with CI/CD tools (e.g., Jenkins, GitLab CI, Azure DevOps) and integrating performance tests in the pipeline.

• Excellent diagnostic and troubleshooting skills with the ability to work across the full stack.

• Strong communication, reporting, and stakeholder management skills.

Preferred Qualifications:

• Bachelors degree in Computer Science, Engineering, or related field.

• ISTQB Advanced Level Test Analyst or Performance Testing certification.

• Experience working in cloud-native environments (AWS, Azure, GCP).

• Familiarity with containerized environments (Docker, Kubernetes).

• Exposure to infrastructure monitoring, capacity planning, and chaos engineering.