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Bünyamin Özen

@bnyaminzen

I’m a Senior QA Automation Engineer specializing in Java-based API and UI testing, building frameworks, and accelerating CI/CD quality.

Turkey
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What I'm looking for

I’m looking for a senior QA automation role where I can build end-to-end Java frameworks, strengthen API/UI testing, and own CI/CD quality gates. I want an Agile team that values test strategy, measurable coverage, and practical AI-driven validation.

I’m a QA Automation Engineer with more than 6 years of experience in both Manual and Automation Testing of web-based applications across Fleet Management, Cloud Storage, and Fintech domains. I focus on strong SDLC/STLC practices, clear test strategy, and turning quality into a measurable, repeatable system.

In my roles at Weavr.io, I designed and maintained a robust E2E automation framework for complex embedded finance APIs using Java, REST Assured, and Maven. I also spearheaded AI-driven testing—integrating AI-powered validation and LLM-as-a-Judge models—to improve test reporting and automated error analysis.

I build automation frameworks from scratch using Cucumber (BDD) and TestNG data-driven approaches, including POM and Singleton patterns. For API testing, I work with Oracle/MySQL, write SQL queries for back-end validation, and validate data through POJO classes and Hamcrest matchers with serialization/deserialization, supported by Swagger documentation.

I thrive in Agile/Scrum teams and have owned CI/CD gatekeeping by integrating automated test suites into pipelines for stable deployments. I’m known as a collaborative, self-motivated team player, and I actively mentor others with QA best practices, documentation standards, and automation logic.

Experience

Work history, roles, and key accomplishments

WE
Current

Senior QA Automation Engineer

Weavr.io

Aug 2025 - Present (10 months)

Designed and maintained an end-to-end automation framework for embedded finance APIs using Java, REST Assured, and Maven. Integrated AI-powered validation (LLM-as-a-Judge) to improve reporting and error analysis, and mapped over 1,000 tests to Jira IDs to reduce regression cycle time.

WE

QA Automation Engineer

Weavr.io

Jul 2022 - Aug 2025 (3 years 1 month)

Created test plans and automation scripts for core banking-as-a-service features, focusing on API security and data integrity. Automated legacy manual testing workflows, reducing manual effort by 40%, and performed deep-dive API testing for financial transaction flows and third-party integrations.

JU

QA Automation Engineer

JunieHelioteca

Dec 2020 - Jul 2022 (1 year 7 months)

Executed manual and automation testing based on user stories and acceptance criteria, including implementing a Cucumber BDD UI automation framework with Selenium WebDriver, JUnit, and Maven. Built data-driven tests, generated HTML/JSON reports, and ran smoke/regression suites via Jenkins with report email delivery.

IN

QA Automation Engineer

Intabella

Jan 2020 - Dec 2020 (11 months)

Performed manual and automation testing based on user stories and acceptance criteria, including building a data-driven UI framework with Java, Selenium WebDriver, TestNG, and Maven. Tested APIs via CRUD operations in Postman/REST Assured, used JDBC/SQL for database testing, and generated Extent-Reports with screenshots for Jenkins-run smoke/regression suites.

Education

Degrees, certifications, and relevant coursework

Bünyamin hasn't added their education

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