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I am a detail-oriented QA Engineer with experience in manual and automated testing across web applications. I design and execute functional, regression, and exploratory tests; I build and maintain Playwright automation frameworks for web UI and API testing using JavaScript/TypeScript; I validate REST APIs using Postman/Swagger with basic SQL for data verification. I thrive in Agile, cross-functional teams and integrate tests into CI/CD pipelines using GitHub Actions. I collaborate with developers and product teams to deliver stable releases in remote, distributed environments, and I manage test cases and defects with Jira and Zephyr Scale throughout the development life cycle.…I am a detail-oriented QA Engineer with experience in manual and automated testing across web applications. I design and execute functional, regression, and exploratory tests; I build and maintain Playwright automation frameworks for web UI and API testing using JavaScript/TypeScript; I validate REST APIs using Postman/Swagger with basic SQL for data verification. I thrive in Agile, cross-functional teams and integrate tests into CI/CD pipelines using GitHub Actions. I collaborate with developers and product teams to deliver stable releases in remote, distributed environments, and I manage test cases and defects with Jira and Zephyr Scale throughout the development life cycle.

Stelios Stamatakis

QA Engineer, Developer, Front-End Developer, +3

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I am a detail-oriented QA Engineer with experience in manual and automated testing across web applications. I design and execute functional, regression, and exploratory tests; I build and maintain Playwright automation frameworks for web UI and API testing using JavaScript/TypeScript; I validate REST APIs using Postman/Swagger with basic SQL for data verification. I thrive in Agile, cross-functional teams and integrate tests into CI/CD pipelines using GitHub Actions. I collaborate with developers and product teams to deliver stable releases in remote, distributed environments, and I manage test cases and defects with Jira and Zephyr Scale throughout the development life cycle.…I am a detail-oriented QA Engineer with experience in manual and automated testing across web applications. I design and execute functional, regression, and exploratory tests; I build and maintain Playwright automation frameworks for web UI and API testing using JavaScript/TypeScript; I validate REST APIs using Postman/Swagger with basic SQL for data verification. I thrive in Agile, cross-functional teams and integrate tests into CI/CD pipelines using GitHub Actions. I collaborate with developers and product teams to deliver stable releases in remote, distributed environments, and I manage test cases and defects with Jira and Zephyr Scale throughout the development life cycle.

Available to hire

I am a detail-oriented QA Engineer with experience in manual and automated testing across web applications. I design and execute functional, regression, and exploratory tests; I build and maintain Playwright automation frameworks for web UI and API testing using JavaScript/TypeScript; I validate REST APIs using Postman/Swagger with basic SQL for data verification.

I thrive in Agile, cross-functional teams and integrate tests into CI/CD pipelines using GitHub Actions. I collaborate with developers and product teams to deliver stable releases in remote, distributed environments, and I manage test cases and defects with Jira and Zephyr Scale throughout the development life cycle.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

Greek, Modern

Fluent

English

Fluent

Work Experience

QA Automation Engineer at Sportendo

January 1, 2023 - Present

Built and maintained a Playwright web UI automation framework (JavaScript/TypeScript), covering core journeys such as login, booking and notifications. Developed and maintained an automated regression suite in Playwright and integrated it into GitHub Actions CI/CD for fast release validation. Automated ~60% of regression tests, reducing manual testing effort by ~50%. Designed and executed API tests with Postman/Swagger, validating HTTP status codes, JSON payloads and error handling for core endpoints. Reported and tracked defects in Jira, ensuring fix verification and re-testing in each sprint.

QA Engineer at E&K Realty

January 1, 2021 - January 1, 2023

Implemented automated smoke suite in Playwright integrated with GitHub Actions. Created reusable locators and fixtures to stabilize tests and improve maintainability. Participated in sprint planning, providing QA input to improve release quality. Reduced production bugs by 30% through early test coverage and proactive testing.

Hearing Aids Technician & 3D Printing at Evikoon

January 1, 2020 - January 1, 2021

Hearing aids technician and 3D printing specialist.

Biomedical Engineer Sales Technician at Palmos Iatrika

January 1, 2018 - January 1, 2020

Biomedical engineer sales technician.

QA Engineer at Sportendo

January 1, 2023 - Present

Built and maintained a Playwright web UI automation framework (JavaScript/TypeScript) covering core journeys such as login, booking and notifications. Developed and maintained an automated regression suite in Playwright and integrated it into GitHub Actions CI/CD for fast release validation. Automated ~60% of regression tests, reducing manual testing effort by 50%. Designed and executed API tests with Postman/Swagger, validating HTTP status codes, JSON payloads and error handling for core endpoints. Reported and tracked defects in Jira, ensuring fix verification and re-testing in each sprint.