Senior Perfomance Tester

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

Job summary

A leading technology firm in South Africa is looking for a Senior Performance Tester to manage performance testing efforts. You will develop testing strategies, mentor junior team members, and collaborate with engineering teams to enhance application scalability. The ideal candidate has a strong performance testing background, experience with tools like JMeter and LoadRunner, and excellent analysis skills.

Qualifications

• 5+ years of performance testing experience, with strong test design skills.
• Hands-on experience with performance testing tools like JMeter or LoadRunner.
• Solid understanding of performance engineering concepts.

Responsibilities

• Design performance testing strategies and frameworks.
• Conduct a variety of performance tests including load and stress.
• Analyze performance metrics and drive optimization initiatives.

Skills

Performance testing

Test design

Performance tools

System performance analysis

Stakeholder management

Education

Bachelors degree in Computer Science or Engineering

Tools

JMeter

LoadRunner

Dynatrace

New Relic

CI/CD tools

Job description

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.

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.