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Jonathan Castro

@jonathancastro

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Senior QA Analyst specializing in manual and automated testing with Serenity BDD and Playwright expertise.

Colombia

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What I'm looking for

I seek a quality-focused role where I can expand automation frameworks, integrate tests into CI/CD, collaborate in Agile teams, and reduce production defects.

I am a Senior QA Analyst with over five years of experience delivering manual and automated testing within Agile teams, primarily in banking and healthcare. I have led functional, end-to-end and API testing efforts, built Screenplay-based suites in Serenity BDD and Playwright solutions, and integrated automation into CI/CD for continuous quality feedback.

My work emphasizes rigorous defect lifecycle management and measurable reduction of production defects through test strategy and automation. I drive quality processes in Azure DevOps and collaborate closely with development and product teams to align testing with business requirements and acceptance criteria.

Experience

Work history, roles, and key accomplishments

Senior QA Analyst

S&T Technology SAS

Nov 2025 - Feb 2026 (3 months)

Executed and documented functional and regression test cases and managed end-to-end QA processes in Azure DevOps for a healthcare client, improving test coverage and defect traceability.

Manual Testing Regression Testing Azure DevOps Test Planning Functional Testing Test Reporting End To End Testing

QA Automation Engineer

Mainsoft Colombia

Mar 2025 - Oct 2025 (7 months)

Built Serenity BDD (Screenplay) E2E automation suites in Java and integrated them into CI/CD pipelines for a banking client, accelerating feedback cycles and reducing regression time.

Java CI CD Pipelines Test Automation Scrum Test Reporting

Functional Tester

Cinte Colombia

Aug 2022 - Jan 2025 (2 years 5 months)

Performed manual and automated testing with Selenium on web and mobile banking applications and implemented testing strategies that reduced production defects for core banking systems.

Selenium Manual Testing Mobile Testing Regression Testing Sanity Testing Test Strategy SQL Server

QA Test Analyst

PirPos

Jun 2021 - Aug 2022 (1 year 2 months)

Implemented Cypress automation for web and mobile applications and conducted API testing with Postman, managing defects through the full lifecycle to resolution.

Cypress JavaScript API Testing Postman Test Automation Agile