Bernardo Guerreiro is a pragmatic Senior Customer Architect with seven years of experience building performance, resilience and testing tooling across startups and scale-ups. He has led and grown Performance & Resilience Engineering teams at Okta/Auth0 and helped shape backend testing strategies at DAZN, while more recently contributing to the Artillery open-source load-testing platform as a back-end and DevOps engineer. Comfortable switching between hands-on engineering and people leadership, he designs practical infrastructure, CI/CD and test frameworks that drive company-wide adoption. Based in Scotland, he combines a mathematics/computation background with a track record of improving test suites, release processes and chaos/performance practices—often spotting and fixing subtle issues like cloud metadata and cookie handling that others miss.
7 years of coding experience
8 years of employment as a software developer
St. John's College
Matemática Aplicada e Computação, Matemática Aplicada e Computação at Instituto Superior Técnico
The complete load testing platform. Everything you need for production-grade load tests. Serverless & distributed. Load test with Playwright. Load test HTTP APIs, GraphQL, WebSocket, and more. Use any Node.js module.
Role in this project:
Back-end Developer & DevOps Engineer
Contributions:11 releases, 121 reviews, 466 PRs in 4 years 7 months
Contributions summary:Bernardo primarily contributed to improving the Artillery load testing platform. Their work involved bug fixes, specifically addressing issues with cloud metadata, payload path resolution, and cookie handling. They also focused on setting up testing infrastructure and improving the test suite, including moving tests to a new framework and implementing improvements for the overall release process.
Contributions:25 commits, 20 pushes, 6 branches in 5 days
spring-bootpactdockermicroservicesshowcase
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Bernardo Guerreiro - Senior Customer Architect at honeycomb.io