Luciano Arguello

• Migrated test suites for several products from the legacy Ruby framework to a modern Playwright e2e setup.
• Collaborated on the design of scalable automated test frameworks for backend and web platforms.
• Defined test strategies and test plans with engineering and product, and integrated automated tests into CI/CD pipelines for fast, reliable feedback.
• Drove shift-left practices and mentored engineers on automation across integration, functional, API and performance layers.

• Established the QA portion of the CI/CD pipeline, improving deployment efficiency by 30%.
• Conducted backend QA for 20 microservices over REST and GraphQL APIs, ensuring 99.9% reliability.
• Introduced Gatling for backend API load testing, resolving bottlenecks that cut average response times by 10%.
• Designed and executed A/B tests on relevance algorithms with LLM-based query understanding — +25% search precision and +15% successful job matches for 500,000+ users.
• Executed comprehensive testing for the AWS migration, ensuring a seamless transition with zero downtime.

Owned end-to-end test planning and reporting (–30% post-release defects), validated REST APIs with Postman, and automated UI flows via Ghost Inspector (–40% manual time, +25% coverage).

Automated the full legacy manual suite (–70% regression time), built 100+ UI & REST tests with TestNG + Selenium, managed Jenkins CI/CD (–50% deploy failures), and ran JMeter performance tuning (+20% perf).

Designed automation scripts for 50+ user stories (+40% process efficiency), validated REST APIs across 30+ stories (–25% integration issues), and shaped end-to-end testing strategy.

Automated 80+ cases with JBehave + Selenium (–50% regression time) and executed 100+ manual tests (+30% defect detection).

Led a 4-person QA team running daily pre-prod regressions; tracked 100+ bugs in Jira at a 90% pre-release resolution rate; coordinated daily with a US-based dev team.