Performance Quality Engineer

About the role

At 8am, quality is not a phase—it’s a mindset woven into every conversation, decision, and line of code.

We are looking for a Performance Quality Engineer to own performance observability, define meaningful metrics, and drive data-informed decisions about system behavior under load.

You will work directly with Platform Engineering, development teams, and product leadership to surface performance risks before they become customer-facing problems.

You will report to the Senior Director of Quality Engineering and maintain a dotted-line relationship with the Sr. Director of Platform Engineering.

• What you’ll do
• Design and create performance test suites for multiple product teams against a microservices-based Saa S platform running on AWS.
• Operate and help maintain production-like environments for performance analysis, diagnosis, and regression testing.
• Analyze application and infrastructure logs to identify, isolate, and help root-cause performance degradations.
• Define, track, and report on performance KPIs (response times, throughput, error rates, resource utilization) and deliver trend analysis and projections to engineering leadership and product stakeholders.
• Use usage and trend data to identify capacity risks and provide recommendations before they impact customers.
• Collaborate with Platform Engineering, Dev X, SDET, and Product teams to prioritize and validate performance improvements.
• Partner with Security QE on the overlap between performance and security risk.

Load and stress tests reveal how systems degrade under pressure, which is exactly what attackers exploit via Do S and resource-exhaustion vectors.

This role will collaborate with Security QE to integrate security-informed scenarios (authentication storms, TLS renegotiation abuse, API rate-limit validation) into performance test plans, and surface high-resource-cost endpoints to security for assessment.

• Identify and define nonfunctional performance tests for CI/CD pipeline gates (Integration, Regression, Post-Deployment).

Work with Dev X and Platform Engineering to establish pass/fail thresholds that catch regressions before production.

• Contribute to performance engineering standards, runbooks, and best practices within the QE organization.

About you

• 3+ years of hands-on performance testing and analysis on microservices-based, cloud-hosted (AWS) Saa S platforms.
• Strong analytical skills with a demonstrated ability to move from symptoms to root cause.
• Background in statistical analysis: trend modeling, interpolation, extrapolation, and capacity forecasting.
• Working knowledge of AWS (EC2, RDS, S3, ECS/EKS), Docker, and Kubernetes.
• Experience with performance testing tools (k6, Gatling, Locust, JMeter, or equivalent).
• Experience with observability platforms (Prometheus, Grafana, Datadog) and log aggregation (ELK Stack, Cloud Watch).
• Scripting proficiency in Python or comparable language for test scenarios, data analysis, and light tooling.

Coding experience is a plus, but this role prioritizes performance engineering skill over software development depth.

• Comfortable working asynchronously across multiple time zones in a remote-first team.
• Fluent in English (written and spoken); Czech language skills are a plus but not required.
• Nice to Have
• Experience integrating performance tests into CI/CD pipelines as automated quality gates.
• Familiarity with APM tools and distributed tracing (Open Telemetry, Jaeger, X-Ray).
• Experience building performance dashboards and automated regression alerting.
• Exposure to security-adjacent performance concerns (DDo S resilience, rate-limit validation, resource-exhaustion analysis).
• Exposure to chaos engineering or resilience testing practices.
• Experience with Agile/Scrum or Kanban delivery frameworks.
• Diversity, equity & inclusion

At 8am, we recognize that innovation occurs with a strong team of people who are diverse in background, personality, talent and ideas.

Experience comes in many forms and ensuring a diverse and inclusive workplace where we continue to learn from each other is an integral part of our culture.

We are committed to creating a welcoming and transparent environment for all that embraces those differences through education, equal access to opportunities and information, inclusionary programs, and community outreach.

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