Senior Performance Test Engineer

About the role

PERFORMANCE TEST ENGINEER / PERFORMANCE ENGINEERING LEAD

Location: Singapore Industry: Telecommunications / Technology

We are partnering with a leading technology-driven telecommunications organisation that is rapidly scaling its digital initiatives and platforms. We are looking for an experienced Performance Test Engineer / Performance Engineering Lead to take ownership of performance testing and drive application and service performance improvements across large-scale systems.

This is an excellent opportunity to work with modern technologies, large-scale platforms and cross-functional engineering teams while making a direct impact on application performance, reliability and user experience.

KEY RESPONSIBILITIES

- Take ownership of existing performance test scripts and frameworks currently managed by vendors.

- Design, schedule and drive end-to-end performance testing activities.

- Define performance testing strategies, scenarios, workload models, test environments, expected results and success criteria.

- Design and implement processes to improve the efficiency, reliability and execution time of performance tests.

- Establish and track application and service performance metrics, NFRs and SLOs.

- Build capacity and load models in collaboration with Architecture and Engineering teams.

- Analyse performance test results, identify bottlenecks and work with engineering teams to drive performance improvements.

- Collaborate closely with Engineering, QA, Architecture and Product stakeholders to align performance objectives.

- Establish effective ways to track, measure and report the results and effectiveness of performance test runs.

- Provide performance insights and recommendations to improve application scalability, stability and user experience.

- Support performance triage, release governance, performance sign-off and release-blocking decisions where required.

- Communicate performance test outcomes and recommendations to both technical and non-technical stakeholders.

- Drive continuous improvement of performance engineering standards, practices and processes.

MUST-HAVE SKILLS & EXPERIENCE

LOAD MODELLING & PERFORMANCE ENGINEERING

- Strong experience defining Non-Functional Requirements (NFRs) and Service Level Objectives (SLOs) with Architecture and Engineering teams.

- Experience building capacity and workload models based on business and technical requirements.

- Strong understanding of open vs. closed workload models and their application in performance testing.

PERFORMANCE TESTING TOOLS

- Strong hands-on experience with one or more of k6, JMeter, Gatling or LoadRunner.

- Proven experience executing performance tests at real production-like scale, including distributed load generation.