Hello!
I’m Mustafa Gunaydin
Software Developer in Test
About Me
I am a passionate Software Developer in Test with a strong commitment to quality assurance and continuous learning. Throughout my education and professional career, I have consistently pursued self-development and embraced new technologies and methodologies. I am a reliable professional who delivers high-quality work on time and with precision.
Birthdate:
01/04/1998
Address:
Istanbul, Turkey
Languages:
English - Upper Intermediate
German - Elementary
Education
Kocaeli University
Electrical Engineering
2016 - 2020
Kanuni Anatolian High School
2012 - 2016
Experience
Trendyol
Software Developer in Test
January 2024 - Present
- • Strong QA expertise for ML-powered API services, ensuring reliable and high-performing systems
- • End-to-end testing proficiency across integration, functional, and performance layers
- • CI/CD optimization skills, including pipeline restructuring and parallel execution to accelerate delivery
- • Strategic improvements to deployment and infrastructure for better scalability and maintainability
- • Focus on continuous quality via QA roadmaps, maturity models, and clear documentation
- • Ability to build custom tools for evaluating ML models using key business metrics
Insider
Software Test Engineer
December 2022 - January 2024
- • Conducted manual and automated testing of web and mobile applications
- • Developed and executed test plans, test cases, and test scripts
- • Identified, documented, and tracked software defects using bug tracking tools
- • Collaborated with developers, product managers, and designers to ensure high-quality software delivery
- • Contributed to process improvement initiatives using tools like AWS, Jenkins, and Grafana
Trendyol
Associate Software Developer in Test
June 2022 - August 2022
- • Wrote and executed automation tests in isolated platform environments
- • Performed BDD API acceptance testing with Java REST Assured
- • Maintained existing tests, monitored failures, and reported bugs
- • Gained understanding of CI/CD, STLC, Docker, and Kubernetes
Borusan CAT (via TesterYou)
Software Test Engineer
February 2022 - March 2022
- • Worked within Agile processes and maintained continuous communication with Scrum team
- • Prepared and wrote test cases using Azure DevOps and maintained existing test cases
- • Performed API testing with Postman
Koç Digital (via TesterYou)
Software Test Engineer
April 2022 - June 2022
- • Identified and reported bugs with focus on technical accuracy and supporting details
Skills
Languages
- Java
- Python
- Go
- C#
- JavaScript
- SQL
- CSS
Technologies
- Selenium • REST • Jenkins
- Cucumber • Appium • Postman
- TestNG • SpecFlow • Spring
- JUnit • Behave • JMeter
- NUnit • Karate • Playwright
