Lead Performance Tester (IC Leadership Role)

TL;DR

Lead Performance Tester (IC Leadership): Architecting and leading enterprise-grade performance testing frameworks for a global commerce platform with an accent on distributed systems, APIs, and complex integrations. Focus on designing sophisticated test harnesses, authoring the Performance Testing Runbook, and performing deep-dive bottleneck analysis across all stack layers.

Location: Remote / Hybrid (Kuala Lumpur preferred)

Company

hirify.global is a global commerce company providing robust tools and services to help video game developers fund, distribute, market, and monetize their games worldwide.

What you will do

• Architect and lead enterprise-grade performance testing frameworks across multiple distributed systems, APIs, and service integrations.
• Design, execute, and interpret performance, load, soak, and stress tests simulating real-world concurrency and traffic.
• Build reusable performance harnesses using modern tools such as JMeter, k6, Gatling, Locust, or LoadRunner, integrating them into CI/CD pipelines.
• Author and maintain the Performance Testing Runbook, detailing operational guidance for testing efforts.
• Instrument systems for observability, leveraging APM and monitoring tools (Datadog, Grafana, Prometheus) to trace and correlate test results.
• Perform deep-dive bottleneck analysis at every layer of the stack (network, API, cache, database, compute).

Requirements

• 8+ years of hands-on experience in performance, load, and scalability testing for large-scale or enterprise-grade systems.
• Advanced proficiency with multiple performance testing tools, including JMeter, k6, Gatling, LoadRunner Enterprise, Locust, NeoLoad, or BlazeMeter.
• Expertise in test scripting and automation using Python, JavaScript/TypeScript, or Groovy.
• Deep understanding of distributed architectures (microservices, APIs, message queues, and async processing).
• Proficiency with profiling and analysis tools (YourKit, JProfiler, VisualVM, Chrome DevTools, perf, flame graphs).
• Proven ability to correlate and interpret metrics from APM platforms (Datadog, New Relic, Dynatrace, AppDynamics) and system monitors (Grafana, Prometheus, CloudWatch).
• Solid grasp of network and infrastructure fundamentals: TCP/IP, HTTP/2, CDN behavior, caching, load balancing, and service mesh patterns.
• Experience defining SLAs, SLOs, and performance baselines, and embedding them into pipelines as measurable quality gates.
• Strong analytical mindset to turn high-volume telemetry data into clear narratives, actionable insights, and capacity forecasts.
• Git proficiency and familiarity with CI/CD pipelines (Jenkins, GitHub Actions, GitLab CI, or CircleCI).

Nice to have

• Familiarity with containerized and cloud-native performance testing (Kubernetes, Docker, AWS Fargate, GCP GKE).
• Experience with chaos engineering or resilience testing frameworks (Gremlin, Litmus, ChaosMesh).
• Understanding of database performance tuning and query profiling (PostgreSQL, MySQL, Redis, MongoDB).
• Knowledge of API gateway performance behavior (Kong, NGINX, AWS API Gateway).
• Prior experience authoring or maintaining enterprise performance frameworks or internal testing platforms.

Culture & Benefits

• Provide latest Mac workplaces and additional hardware for effectiveness.
• Offer free trainings and participation in specialized conferences for professional growth.
• Rich knowledge exchange opportunities within the company.
• Health insurance (Medical, dental, and optical) for employees and dependants.
• Flexible hours to organize your day according to needs and sprint/teamwork demands.
• No dress code and comfortable, new office environment.