Senior Perfomance Tester

SavageOne Pty Ltd; Johannesburg; On-site; ZAR 950,000 - 1,300,000; Full time

Job summary

SavageOne Pty Ltd in Johannesburg is seeking a Senior Performance Tester to lead performance and load testing across applications and systems. You will design robust testing strategies, mentor junior testers, and work closely with cross-functional teams to ensure scalability and responsiveness in production-like environments.

You will design end-to-end strategies, conduct various testing types, analyze metrics, and drive optimization with engineering teams.

Qualifications

• 5+ years of hands-on performance testing experience.
• Strong scripting, test design, and analysis abilities.
• Experience with modern performance testing tools.
• Knowledge of CI/CD integration and monitoring practices.
• Excellent communication and stakeholder management skills.

Responsibilities

• Design end-to-end performance testing strategies for applications.
• Execute load, stress, endurance, and spike testing to validate systems.
• Analyze metrics, identify bottlenecks, and drive optimization efforts.
• Collaborate with architects, DevOps, and DBAs to improve performance.
• Provide mentorship and technical guidance to junior testers.
• Create dashboards and reports for technical and non-technical stakeholders.
• Integrate performance tests into CI/CD pipelines and lifecycle.
• Contribute to capacity planning and infrastructure decisions based on insights.

Skills

Performance testing

Test design

Scripting

CI/CD integration

Stakeholder communication

Education

Bachelor's degree in Computer Science, Engineering, or related field

Tools

JMeter

LoadRunner

Gatling

BlazeMeter

k6

Dynatrace

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.