ABOUT US

Xsolla is a global commerce company with robust tools and services to help developers solve the inherent challenges of the video game industry. From indie to AAA, companies partner with Xsolla to help them fund, distribute, market, and monetize their games. Grounded in the belief in the future of video games, Xsolla is resolute in the mission to bring opportunities together, and continually make new resources available to creators. Headquartered and incorporated in Los Angeles, California, Xsolla operates as the merchant of record and has helped over 1,500+ game developers to reach more players and grow their businesses around the world. With more paths to profits and ways to win, developers have all the things needed to enjoy the game.

For more information, visit

xsolla.com.

Lead Performance Tester (IC Leadership Role)

Team:Quality Engineering & Platform Reliability

Location:Remote / Hybrid (Kuala Lumpur preferred)

Seniority:Individual Contributor Lead

About the Role

Xsolla powers global commerce for the gaming industry — a platform that processesmassive transaction volumes, complex integrations, and millisecond-sensitive interactions.

We’re seeking aLead Performance Testerto define, execute, and institutionalize performance testing across this landscape.

This is ahands-on, technically deep individual contributor leadership role. You’ll architect and drive performance testing strategies, craft sophisticated test harnesses, and author thePerformance Testing Runbookthat sets the gold standard for all future testing efforts.

If you thrive in environments whereevery number tells a story— latency, throughput, resource contention, and scaling curves — this is your stage.

Core Responsibility

Architect and lead enterprise-grade performance testing frameworksacross multiple distributed systems, APIs, SDKs, and service integrations.

Design, execute, and interpret performance, load, soak, and stress teststhat simulate real-world concurrency and traffic behaviors.

Build reusable performance harnessesusing modern tools such asJMeter,k6,Gatling,Locust, orLoadRunner Enterprise, and integrate them into CI/CD pipelines.

Author and maintain the Performance Testing Runbook— a detailed operational guide covering environment setup, load profiles, KPIs, and performance sign-off criteria.

Instrument systems for observability, leveragingAPM and monitoring tools(Datadog, New Relic, Grafana, Prometheus, ELK, OpenTelemetry) to trace and correlate test results with backend telemetry.

Perform deep-dive bottleneck analysisat every layer of the stack — network, API, cache, database, and compute — identifying contention, saturation points, and tuning opportunities.

Work directly with backend, DevOps, and SRE teamsto benchmark system capacity, analyze regressions, and validate optimization hypotheses.

Integrate performance metrics into CI/CD, enforcing data-driven go/no-go gates and providing clear visual reports on trend lines and performance drift.

Mentor and influenceQA, automation, and infrastructure engineers in the art and science of performance engineering.

Required Technical Skills & Expertise

8+ yearsof hands-on experience inperformance, load, and scalability testingfor large-scale or enterprise-grade systems.

Advanced proficiency withmultiple performance testing tools, including:

JMeter,k6,Gatling,LoadRunner Enterprise,Locust,NeoLoad, orBlazeMeter.

Expertise intest scripting and automationusingPython, JavaScript/TypeScript, or Groovy.

Deep understanding ofdistributed architectures— microservices, APIs, message queues, and async processing.

Proficiency withprofiling and analysis tools(YourKit, JProfiler, VisualVM, Chrome DevTools, perf, flame graphs).

Proven ability tocorrelate and interpret metricsfrom APM platforms (Datadog, New Relic, Dynatrace, AppDynamics) and system monitors (Grafana, Prometheus, CloudWatch).

Solid grasp ofnetwork and infrastructure fundamentals: TCP/IP, HTTP/2, CDN behavior, caching, load balancing, and service mesh patterns.

Experience definingSLAs, SLOs, and performance baselines, and embedding them into pipelines as measurable quality gates.

Strong analytical mindset — able toturn high-volume telemetry data into clear narratives, actionable insights, and capacity forecasts.

Git proficiency and familiarity withCI/CD pipelines(Jenkins, GitHub Actions, GitLab CI, or CircleCI).

Preferred / Bonus Experience

Familiarity withcontainerized and cloud-native performance testing(Kubernetes, Docker, AWS Fargate, GCP GKE).

Experience withchaos engineeringor resilience testing frameworks (Gremlin, Litmus, ChaosMesh).

Understanding ofdatabase performance tuningand query profiling (PostgreSQL, MySQL, Redis, MongoDB).

Knowledge ofAPI gateway performance behavior(Kong, NGINX, AWS API Gateway).

Prior experienceauthoring or maintaining enterprise performance frameworks or internal testing platforms.

Contributions to open-source or internalperformance engineering playbooks, documentation, or frameworks.

What Success Looks Like

APerformance Testing Runbookthat becomes the canonical guide for all future load and scalability testing at Xsolla.

Continuous, automated performance baselines integrated into the build/release pipelines.

Systemic visibility into performance regressions and bottlenecks across services.

Aquantifiable performance improvement culture, where every release is measured and optimized, not guessed.

Clear, data-backed recommendations that drive architectural improvements and product reliability.

Additional Information

BENEFITS:

Convenient work tools

Latest Mac workplaces + additional hardware to make you more effective at work

Google Chat, Gmail, Google Drive, Confluence, Jira, GitLab

Professional growth

Free trainings and participation in specialized conferences

Rich knowledge exchange within the company

More perks

Health insurance (Medical, dental and optical)- Employee and dependants

Flexible hours: organize your day according to your needs and sprint & teamwork demands

No dress code

Comfortable and new office environment

The duties of this position may change from time to time so the individual and organization can achieve their results. This job description is intended to describe the general level of work being performed. It is not intended to be all-inclusive. By submitting your application, you consent to Xsolla conducting background checks, where permitted by law, after the final interview stage. All checks will comply with local regulations, and your information will be handled confidentially. Xsolla KL Sdn Bhd takes your privacy very seriously, and will not sell or externally distribute any data received during the hiring process. Pursuant to the Personal Data Protection Act 2010 (“PDPA”), Xsolla KL Sdn Bhd is mindful and committed to the protection of your personal information and your privacy. Please direct any inquiries regarding your data privacy

careers@xsolla.com

For more vacancies:

https://xsolla.com/careers

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