Performance Test Manager

About the role

A Performance Test Manager is needed in Havelock City, Colombo, to define and run the enterprise-wide performance engineering strategy, integrate performance testing into CI/CD pipelines and lead a performance engineering team. Working hours are Sri Lankan; candidates should be willing to adjust to UK working hours if required.

Key responsibilities

• Define the performance engineering strategy aligned to business SLAs, SLOs and architecture, set performance budgets and NFRs early in the SDLC, and embed performance in design reviews.
• Automate performance testing in CI/CD, enable shift-left and shift-right practices, and set performance gates to prevent regressions.
• Define k6 best practices, use WebpageTest for front-end performance and Core Web Vitals, and use Datadog (APM, RUM, synthetic monitoring, dashboards, alerting) to link tests with production telemetry.
• Validate microservices, APIs, event-driven systems and containerized workloads, including scalability across Kubernetes clusters and cloud environments (AWS, Azure, GCP).
• Run resilience, autoscaling and capacity modelling tests, correlate test data with logs, traces and metrics, and drive root cause analysis.
• Lead and mentor a performance engineering team, upskill QA and developers, and deliver executive dashboards, KPIs and capacity forecasts.

Required profile

• 10+ years in software quality engineering with a strong focus on performance engineering.
• 5+ years leading performance or non-functional testing teams in complex, distributed systems.
• Proven track record of moving performance testing from traditional practice to modern, engineering-led capability.
• Strong stakeholder management, ability to turn technical findings into business risk, and excellent executive reporting.

Required skills

• Hands-on k6 scripting and automation; Datadog (APM, metrics, tracing, dashboards, alerting)
• WebpageTest and front-end performance optimization
• Microservices, APIs, Docker, Kubernetes, and cloud-native architectures
• CI/CD integration (GitHub Actions, GitLab, Jenkins, Azure DevOps); Infrastructure-as-Code (Terraform, CloudFormation) desirable
• JavaScript, Python or similar scripting languages