Senior Performance Test Engineer

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.

- Strong experience in correlation, parameterisation and complex performance test scripting.

OBSERVABILITY & APM

- Hands-on experience with one or more observability/APM platforms such as: Dynatrace, AppDynamics, New Relic, Grafana, Prometheus, Splunk, ELK or OpenTelemetry.

- Ability to use application and infrastructure telemetry to identify, isolate and troubleshoot performance bottlenecks.

CLOUD & PLATFORM

- Strong understanding of cloud-native and distributed application environments.

- Experience with Docker/containers and Kubernetes.

- Good understanding of load balancers, queues and distributed systems.

- Experience with protocols and technologies beyond REST, such as gRPC, WebSockets and messaging/queue-based systems.

TECHNICAL LEADERSHIP

- Experience establishing or significantly improving a performance testing/performance engineering practice.

- Ability to define engineering standards, testing methodologies and best practices.

- Experience mentoring engineers and building high-performing technical teams.

- Strong ability to drive continuous improvement in performance testing efficiency, reliability and execution time.

STAKEHOLDER MANAGEMENT & RELEASE GOVERNANCE

- Strong experience working with Engineering, QA, Architecture, Product and other stakeholders.

- Ability to communicate performance results and recommendations effectively to non-technical audiences.

- Experience managing performance triage, release sign-off and performance-related release blocking decisions.

- Strong ability to establish KPIs and report on performance trends and improvement.