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Edwin Casallas

@edwincasallas

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Senior QA Automation Engineer at BlueBerryBytes who cut manual regression effort by 70% through framework automation.

Colombia

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What I'm looking for

I'm open to remote, hybrid, and relocation opportunities worldwide. I’m looking to build maintainable test ecosystems that help teams ship software confidently and prevent issues before they reach production.

At BlueBerryBytes, I defined QA governance aligned with ISTQB standards, setting quality gates and coverage criteria across the SDLC. I also led a cross-functional QA team, managing workload and mentoring engineers in automation practices.

I designed scalable web automation frameworks using Selenium with Java and Playwright with JavaScript, and automated REST API testing with Rest Assured and Postman. These efforts reduced manual regression effort by 70% and improved defect detection by 40%.

At Sofka Technologies, I built and maintained automation frameworks with Serenity BDD, Selenium, and Rest Assured, and developed BDD scenarios using Cucumber and Gherkin. I implemented CI/CD pipelines and automated API coverage for more than 100 endpoints.

My project work has included testing web and mobile job-search platforms, investment-management applications, and healthcare and fintech APIs. I hold the ISTQB Certified Tester Foundation Level (CTFL) certification and am open to remote, hybrid, and relocation opportunities worldwide.

Experience

Work history, roles, and key accomplishments

Current

Senior QA Automation Engineer

Current

BlueBerryBytes

Apr 2025 - Present (1 year 6 months)

Defined and enforced QA governance aligned with ISTQB standards, led a cross-functional QA team, and designed scalable automation frameworks using Selenium and Playwright. Integrated automated test suites into CI/CD pipelines and maintained detailed test documentation.

Selenium Playwright Java JavaScript Rest Assured Postman Jenkins GitHub Actions Confluence ISTQB Test Strategy CI CD Testing Automation API Testing

Automation Test Analyst

Sofka Technologies

May 2021 - Apr 2025 (3 years 11 months)

Built and maintained automation frameworks using Serenity BDD, Selenium, and Rest Assured, and developed BDD scenarios with Cucumber. Implemented CI/CD pipelines using Jenkins and Azure DevOps, and led QA efforts across banking, insurance, pension, and investment projects.

Serenity BDD Framework Selenium Rest Assured Cucumber Gherkin Jenkins Azure DevOps Agile Scrum API Testing Testing Automation BDD

Software Developer (Intern)

PC Solutions

Jan 2021 - Mar 2021 (2 months)

Supported frontend and backend development tasks and performed debugging for web applications in healthcare systems. Assisted QA efforts during internal testing cycles to ensure data accuracy and application stability.

Frontend Development Backend Development Debugging QA Healthcare Systems