Senior Performance Test Engineer (5+ Years Experience)

Location: Onsite at Client Office (HCMC) Employment Type: Full-time

Performance & Load Testing (60%) Design, develop, and execute performance test plans, test scenarios, and automated test scripts for enterprise applications, APIs, microservices, middleware, and mission-critical backend systems. Perform various types of performance testing, including Load Testing, Stress Testing, Volume Testing, Spike Testing, and Endurance Testing. Simulate real-world transaction volumes and concurrent user activities to validate system scalability, stability, and capacity. Analyze performance metrics such as response time, throughput, transactions per second (TPS), requests per second (RPS), error rates, and resource utilization. Evaluate system performance against defined SLAs and non-functional

requirements:. API & Integration Testing (20%) Conduct performance testing for APIs and integration services supporting digital platforms and enterprise applications. Validate performance across end-to-end integration flows involving middleware, mobile/web applications, CRM systems, payment services, and other connected enterprise platforms. Identify and troubleshoot performance bottlenecks across APIs, middleware, databases, and downstream services. Analysis & Troubleshooting (20%) Monitor application, database, middleware, and infrastructure performance during testing activities. Investigate performance issues and collaborate with development, architecture, infrastructure, and business stakeholders to identify root causes. Prepare performance testing reports and provide recommendations for performance tuning and system optimization.

Minimum 5 years of experience in Software Testing, including Performance Testing.

Strong hands-on experience with performance testing tools such as JMeter, LoadRunner, Gatling, k6, or similar.

Experience testing RESTful APIs , microservices, and distributed systems.

Solid understanding of performance metrics, capacity planning, and system bottleneck analysis.

Familiarity with monitoring and observability tools (e.g., Grafana, Kibana, Dynatrace, AppDynamics, Splunk, Prometheus).

Good understanding of databases (SQL/NoSQL) and middleware technologies.

Experience working in Agile/Scrum environments.

Strong analytical and troubleshooting skills.

Good communication skills and ability to work directly with client stakeholders.

Preferred Experience in financial services, banking, payment, or high-volume transaction systems.

Experience with cloud environments (AWS, Azure, GCP).

Knowledge of CI/CD and performance testing automation.

Competitive Salary + Super.

Performance Bonuses.

An amazing team - supportive, fun, and caring with team building, and fun activities.

Plus most importantly a genuinely relaxed, happy, respectful, energetic working environment where you will look forward to coming to work each day - whether it is in your home or the office.

Professional facilities Social Insurance, Health Insurance, Unemployment Insurance Support fee to get Certificate.

Agile English-speaking training and on-the-job training Light beverages and food are available all the time in the office