Danica Nebrigic
Verified Expert in Engineering
QA Analyst and Developer
Belgrade, Serbia
Toptal member since March 17, 2026
Danica is a senior quality assurance (QA) analyst with 14+ years of experience delivering reliable, high-quality software through robust testing strategies. Her expertise includes API and UI automation, performance testing, and end-to-end QA processes. Danica works with tools such as Playwrite, Selenium, SpecFlow, Postman, TestComplete, and JMeter, and collaborates closely with agile teams to improve release quality, testing efficiency, and overall product stability.
Portfolio
Experience
- Regression Testing - 14 years
- Selenium - 10 years
- SpecFlow - 10 years
- JavaScript - 10 years
- NUnit - 10 years
- Postman - 7 years
- Windsurf - 2 years
- Playwright - 2 years
Work Experience
Senior Mobile QA Automation Engineer
Freelance Client
- Built a cross-platform mobile automation framework for a React Native application, supporting both iOS and Android platforms.
- Designed a scalable automation architecture covering critical user flows, regression scenarios, and release validation.
- Improved confidence in mobile releases through stability, maintainable automated coverage.
Senior QA | QA Lead
A Fintech Company
- Led QA activities for multiple agile teams, defining a testing strategy and coordinating manual and automated testing across API, UI, and system integration layers.
- Designed and implemented automated test suites using Selenium and SpecFlow, improving regression testing coverage and reducing manual testing effort.
- Developed and executed API test frameworks using Postman and SoapUI, validating complex service integrations and improving API reliability.
Senior QA
Self Employed
- Developed and implemented end-to-end testing procedures and QA guidelines, improving test coverage and standardising quality processes across the team.
- Designed and maintained automated API test suites using tools such as Postman and REST Assured, increasing test efficiency and reducing manual effort.
- Executed smoke and regression testing cycles for telecom applications, ensuring stability of core functionalities and reducing production defects.
Software Engineer in Test
Freelance
- Developed and maintained automated test scripts for web applications, increasing regression coverage and improving test execution efficiency.
- Created detailed test plans, test cases, and test scenarios based on functional and technical requirements.
- Implemented API testing and validation for service-based architectures using Postman and SoapUI.
Project History
Enterprise Financial Platform Testing
Certifications
ISTQB Certified Tester - Foundation Level Extension, Agile Tester
ISTQB
ISTQB Certified Tester, Foundation Level
ISTQB
Skills
Libraries/APIs
Playwright
Tools
Postman, TestFlight, Windsurf, Jenkins, Trello, Microsoft Power BI, SoapUI, LoadUI, Microsoft Test Manager, Jira
Frameworks
Selenium, SpecFlow, NUnit, Appium, XCUITest
Paradigms
Automated Testing, Test Automation, Manual Testing, User Acceptance Testing (UAT), Testing, E2E Testing, Azure DevOps, Usability Testing, Kanban
Platforms
Android, Apple, iOS, Microsoft Power Automate
Languages
JavaScript, C#, C#.NET
Storage
MongoDB
Other
Widows, Quality Assurance (QA), Agile Software Testing, Regression Testing, API Testing, Manual QA, Smoke Testing, QA Automation, Mobile App Testing, Quality Auditing, iPhone, Beta Testing, Test Scenarios, Test Cases, Mobile Apps, Mobile Device QA Automation, Automated UI Testing, UI Testing, Manual Software Testing, QA Testing, Attention to Detail, Code Review, Communication, Screeners, Written Communication, Interviewing, Team Leadership, Team Management, Exploratory Testing, Risk-based Testing, Android Testing
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