Performance Tester

For over twenty-five years, ISM Technology Recruitment has been putting Thai IT contractors into great, high-paying contracts at Thailand’s biggest and best-known companies.

Whether you’re looking for a short-term project or a longer-term assignment, we’re here to help you make the best choice for your IT career. And of course we recruit for permanent positions too… contracting can be a great way to “get in the door” and be considered for full-time employment by our blue-chip, enterprise clients.

When you contract through ISM you’ll have the confidence that comes from knowing that your agency has a solid financial background and a reputation for ethical business practices.

So what are you waiting for? If you have at least three years’ work experience and a passion for IT, you owe it to yourself to find out what you could be earning as a contractor.

Click “Apply” to send your CV to ISM now and start your excellent journey to new opportunities and attractive pay as a contract IT professional.

Description

• Validate system performance, stability, and scalability based on defined Non-Functional Requirements (NFRs).
• Define performance testing scope in collaboration with business, development, and infrastructure teams.
• Execute performance tests including Load, Stress, Volume, Endurance, and Availability testing.
• Design and develop performance test scripts using Apache JMeter or k6.
• Analyze test results to identify performance bottlenecks and system limitations.
• Set up and manage performance test environments, including test data and monitoring tools (e.g. Dynatrace).
• Coordinate with development and infrastructure teams to investigate root causes and support performance improvements.
• Prepare performance test reports with key metrics such as response time, TPS, error rate, along with clear recommendations.
• Propose improvements to performance testing processes and best practices.
• Support and integrate automated performance testing within CI/CD pipelines (preferred).

Qualification

• 2–5 years of experience in software testing, with at least 1–2 years focused on performance testing.
• Hands-on experience validating system performance and scalability using Apache JMeter (preferred) or k6.
• Proven experience executing and analyzing Load, Stress, Volume, Endurance, and Availability tests.
• Good understanding of HTTP protocol, REST APIs, and system architectures (client-server, microservices).
• Familiarity with application and infrastructure monitoring tools.
• Ability to analyze system metrics and logs to identify performance issues and bottlenecks.
• Basic knowledge of CI/CD pipelines (e.g. Jenkins, GitLab CI) is a plus.
• Strong analytical, problem-solving, and communication skills for cross-team collaboration.

Nice to Have: