Senior Performance Testing Engineer jobs in United States
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Onebrief · 1 month ago

Senior Performance Testing Engineer

Onebrief is a collaboration and AI-powered workflow software company designed specifically for military staffs. They are seeking a Senior Performance Testing Engineer to lead the performance and scalability testing strategy, ensuring the reliability and performance of their platform as it scales with a growing user base.

Information TechnologyMilitaryProductivity ToolsSoftware

Responsibilities

Lead performance testing strategy, planning, and execution using k6 (open-source and cloud)
Design and implement robust, reusable, and parameterized performance test scripts in Typescript
Simulate realistic load, stress, and soak test scenarios across APIs, web applications, and microservices
Analyze results to uncover bottlenecks and performance issues across front-end, backend, and database layers
Partner with Developers, DevOps, and Architects to integrate performance objectives into the CI/CD pipeline
Work with stakeholders to define and maintain performance SLAs and ensure adherence across environments
Collaborate with the Quality Enablement team to evolve our performance observability, tooling, and metrics strategy
Mentor engineers on performance testing best practices, code efficiency, and scalability principles
Present detailed reports and insights that guide product and infrastructure improvements

Qualification

Performance testingK6JavaScript/TypescriptCI/CD integrationMonitoring toolsCloud environmentsMicroservices architectureAnalytical skillsTroubleshooting skillsCommunication skillsMentoringCollaboration

Required

7+ years of experience in performance testing and engineering
Strong hands-on experience with k6, including scripting, scenario modeling, and analysis
Proficiency in JavaScript/Typescript for k6 scripting
Experience with Grafana, Prometheus, InfluxDB, or similar monitoring and metrics tools
Strong understanding of HTTP, REST, WebSockets, and microservices architectures
Solid experience integrating performance tests in CI/CD pipelines (GitHub Actions, GitLab CI, or Jenkins)
Experience with cloud environments (AWS, Azure, or GCP) and distributed load testing setups
Excellent analytical, troubleshooting, and communication skills

Preferred

Experience with additional performance tools (e.g., JMeter, Gatling, Artillery)
Familiarity with playwright, either in e2e or in Artillery/K6/Locust
Familiarity with Docker and Kubernetes for containerized test environments
Experience building performance dashboards and observability pipelines
ISTQB Performance Tester certification or similar credentials

Company

Onebrief

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Onebrief is a web-based military planning software for rapid decision-making and collaboration.

Funding

Current Stage
Growth Stage
Total Funding
$111.04M
Key Investors
Battery VenturesHuman Capital
2025-06-16Series C· $23.58M
2025-01-28Series C· $50M
2024-08-21Series B· $16M

Leadership Team

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Grant Demaree
CEO and co-founder
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Rafa Pereira
Co-founder and CTO
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Company data provided by crunchbase