Hello! I'm Esra Hazinedar, a QA Engineer with a passion for building reliable software through thoughtful testing and automation. With over three years of experience in manual and automated testing for SaaS platforms, I design robust test strategies, implement scalable test frameworks, and collaborate closely with development teams to ensure quality from sprint to release. I thrive in Agile environments and enjoy turning complex problems into clear, repeatable processes. I have hands-on experience with Java, Selenium, Playwright, REST Assured, CI/CD pipelines, and cloud-based testing tools, and I’m always eager to learn new technologies to boost product quality and delivery velocity.

Esra Hazinedar

Hello! I'm Esra Hazinedar, a QA Engineer with a passion for building reliable software through thoughtful testing and automation. With over three years of experience in manual and automated testing for SaaS platforms, I design robust test strategies, implement scalable test frameworks, and collaborate closely with development teams to ensure quality from sprint to release. I thrive in Agile environments and enjoy turning complex problems into clear, repeatable processes. I have hands-on experience with Java, Selenium, Playwright, REST Assured, CI/CD pipelines, and cloud-based testing tools, and I’m always eager to learn new technologies to boost product quality and delivery velocity.

Available to hire

Hello! I’m Esra Hazinedar, a QA Engineer with a passion for building reliable software through thoughtful testing and automation. With over three years of experience in manual and automated testing for SaaS platforms, I design robust test strategies, implement scalable test frameworks, and collaborate closely with development teams to ensure quality from sprint to release.

I thrive in Agile environments and enjoy turning complex problems into clear, repeatable processes. I have hands-on experience with Java, Selenium, Playwright, REST Assured, CI/CD pipelines, and cloud-based testing tools, and I’m always eager to learn new technologies to boost product quality and delivery velocity.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
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Language

English
Fluent

Work Experience

QA Engineer (SDET) at Clickout Media
June 1, 2025 - Present
Enhanced an existing automation framework and increased regression coverage from 0% to 30% (120 to 210 test cases) in six months, reducing manual regression by 15 hours per week. Proactively identified and resolved 15+ high-impact production defects per quarter, improving release readiness and reducing post-release incidents. Implemented automated tests in Jenkins CI/CD pipelines, cutting pre-release defects and shortening release cycles by 2 days per sprint, enabling reliable, consistent quality validation. Identified and resolved critical production defects using Sentry monitoring, improving release confidence and system reliability by 20% per quarter. Performed cross-browser and mobile validation including SEO checks for WordPress sites using LambdaTest, improving release readiness and reducing post-release bug reports. Initiated QA for five products, building a Playwright E2E suite with GitHub Copilot.
Quality Assurance Engineer (Automation/Manual Tester) at RETRACE
August 1, 2023 - May 31, 2025
Tested 10+ clinical claim insurance workflows end-to-end using Java, Selenium Web Driver, and BDD frameworks, ensuring UI, API, and data layer consistency and accelerating release confidence. Reduced regression defects by 35%, accelerating release frequency from bi-weekly to weekly and decreasing post-release incidents by 20%. Strengthened data integrity by validating backend data with SQL (MySQL) and NoSQL (MongoDB), ensuring alignment between UI and data. Tested APIs with Postman and RestAssured, validating 100+ endpoints for responses, status codes, and workflows, reducing API-related defects by 25%. Accelerated test execution by 40% via automated tests integrated in CI/CD pipelines and Dockerized Selenium Grid, enhancing release confidence.
QA Engineer (Manual Tester) at Applause Inc.
April 1, 2022 - March 31, 2023
Improved product stability across multiple platforms through comprehensive functional and regression testing across browsers and operating systems. Identified and documented 100+ defects, accelerating developer resolution through detailed reproduction steps and environment analysis. Increased post-release reliability by uncovering edge cases and environment-specific issues during exploratory testing cycles.

Education

Bachelor's Degree at Karadeniz Technical University
January 1, 2004 - January 1, 2009

Qualifications

ISTQB Certified Tester – AI Testing (CT-AI)
February 1, 2026 - April 22, 2026
ISTQB Certified Tester – Foundation Level (CTFL)
February 1, 2023 - April 22, 2026
IELTS Cambridge English Proficiency - C1
January 1, 2021 - April 22, 2026
Udemy Playwright / TypeScript Certificate
January 11, 2030 - April 22, 2026

Industry Experience

Software & Internet, Professional Services