Mihajlo Stamenkovic
Arlington,VA
Summary
SDET with 8+ years of experience in UI, API, and database testing. Strong expertise in automation using Java, C#, Python, Selenium WebDriver, Playwright, and Postman. Experienced in building scalable test frameworks (BDD, POM, Hybrid) and maintaining CI/CD pipelines with Jenkins. Proven track record in improving test coverage, maintaining regression and smoke suites, performing API automation, and supporting release validations in Agile environments. Experienced with implementing comprehensive testing strategies to ensure product quality. Utilizes test automation tools to streamline processes and enhance efficiency. Track record of identifying critical software issues and facilitating timely resolutions.
Overview
9
9
years of professional experience
Work History
Software Engineer in Test - SDET
Delta Dental Of Michigan
Okemos, MI
07.2022 - Current
- Maintained and enhanced Smoke and Regression test suites for UI and API automation (Java, Selenium WebDriver, JUnit, Playwright, Postman) and integrated them into CI/CD pipelines using Jenkins.
- Developed UI automation with Selenium WebDriver/Java/JUnit for cross-browser testing.
- Built and executed API automation using Playwright and Postman; validated RESTful services and response accuracy.
- Performed database validation using JDBC and SQL queries.
- Participated in release validation cycles, ensuring application stability and production readiness.
- Developed and optimized automated test scripts and manual test cases to improve coverage and reliability.
- Mentored junior testers and promoted QA best practices within the team.
Software Engineer in Test - SDET
OnDeck
Arlington, VA
11.2020 - 07.2022
- Developed automated UI and API tests (Selenium, Java, RestAssured, Postman) and maintained regression suites.
- Applied Page Object Model to centralize web elements and improve code reuse.
- Executed backend validation using JDBC/SQL and maintained Maven automation projects.
- Implemented Jenkins jobs to run smoke/regression tests and generate reports.
- Collaborated with cross-functional teams to define test strategies and ensure high-quality delivery.
Software Engineer in Test - SDET
Evolent Health
Arlington, VA
11.2019 - 11.2020
- Automated Smoke, Regression, Functional, Positive/Negative, and Boundary tests (UI, API, DB).
- Developed Cucumber feature files (Gherkin) and executed automation with Selenium/Java.
- Built automated API tests using RestAssured and Postman.
- Implemented Jenkins jobs for regression and smoke suites; generated reports for the team.
- Followed Agile Scrum methodology; collaborated across teams to improve testing processes.
QA Engineer
Mastercard
Arlington, VA
06.2017 - 11.2019
- Designed and implemented Hybrid/Data-Driven framework using TestNG, Maven, Selenium, and Page Object Model.
- Performed Smoke, Functional, Regression, and Manual Testing of web applications.
- Wrote and executed Cucumber feature files (Gherkin) and automated database validations using JDBC/SQL.
- Configured Jenkins jobs for automated regression and smoke testing; generated reports.
- Supported cross-functional teams in Agile/Kanban environment to ensure quality delivery.
Skills
- LANGUAGES: Java, Python, C#, HTML, SQL, Gherkin
- TESTING TOOLS: Selenium WebDriver, Selenium Grid, Cucumber, TestNG, JUnit, JDBC, Rest Assured, Playwright, Qmetry
- OS / IDE: Windows, IntelliJ IDEA, Eclipse, SQL Developer
- FRAMEWORK: Cucumber, JUnit, TestNG, Data Driven, Behavior Driven, POM
- CI/CD & Build Tools: Jenkins, Maven
- DATABASES: MySQL, Oracle, NO SQL
- VERSION CONTROL: Git, GitHub, Bitbucket
- PROJECT MANAGEMENT /BUG TRACKING: Jira, Jira Xray, Agility
- METHODOLOGIES: Agile (Scrum, Kanban)
Timeline
Software Engineer in Test - SDET
Delta Dental Of Michigan
07.2022 - Current
Software Engineer in Test - SDET
OnDeck
11.2020 - 07.2022
Software Engineer in Test - SDET
Evolent Health
11.2019 - 11.2020
QA Engineer
Mastercard
06.2017 - 11.2019