Meet Our Experts

Dedicated QA professionals with years of experience in delivering exceptional software quality

Our team combines technical expertise with industry best practices to ensure your software meets the highest standards.

Marko Kolasinac, CEO & Founder at AssertQA - Professional profile photo

Marko Kolasinac

CEO & Founder

Marko is a software testing and QA veteran who founded AssertQA to help companies deliver flawless software through smart, modern and inovative testing strategies.

QA StrategyTest AutomationPerformance TestingMobile Testing
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David Lukic-Hanomihl, QA Solution Architect at AssertQA - Professional profile photo

David Lukic-Hanomihl

QA Solution Architect

David combines deep automation testing expertise with hands-on experience in Cypress, WDIO, and Appium, empowering teams to deliver software that meets the highest quality standards.

Test AutomationCypressWDIOAppiumBrowserstack
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Vuk Kazimirovic, QA Team Lead & Consultant at AssertQA - Professional profile photo

Vuk Kazimirovic

QA Team Lead & Consultant

Vuk is a skilled Team Lead and QA engineer with deep expertise in both automated and manual testing. He has a keen eye for detail and an intuitive understanding of QA processes.

QA ProcessCypressManual TestingTestRailTeam Leadership
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AliExpress
Tatjana Nikolic, Senior QA Engineer at AssertQA - Professional profile photo

Tatjana Nikolic

Senior QA Engineer

Tatjana brings extensive expertise in quality assurance and software testing. She is committed to maintaining the highest standards of software quality for our clients.

QA StrategyCypressManual TestingAPI TestingPostman
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Dejan Zivkovic, Automation QA Engineer at AssertQA - Professional profile photo

Dejan Zivkovic

Automation QA Engineer

Dejan is our go-to QA consultant for modern app testing with Cypress, k6 and AI Solutions. He ensures apps work flawlessly across all platforms powered by AI.

Test AutomationCypressPlaywrightK6Performance Testing
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Jovan Radivojevic, Backend API QA Automation Engineer at AssertQA - Professional profile photo

Jovan Radivojevic

Backend API QA Automation Engineer

Jovan owns backend and API quality at AssertQA, designing and maintaining reliable automated test suites with Cypress and Postman that keep services stable and production-ready.

API TestingBackend TestingCypressTest AutomationPostman
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Nebojsa Covic Tabasevic, Mobile Automation QA Engineer at AssertQA - Professional profile photo

Nebojsa Covic Tabasevic

Mobile Automation QA Engineer

Nebojsa leads mobile test automation across iOS and Android, building robust WDIO and Appium frameworks that keep apps smooth, stable, and reliable on every device and release.

WDIOAppiumiOSAndroidTest Automation
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Maja Kolasinac, Office Manager at AssertQA - Professional profile photo

Maja Kolasinac

Office Manager

Maja ensures smooth operations and excellent organization within our team. She manages administrative tasks and supports our team to deliver exceptional results.

Office ManagementAdministrationTeam Coordination
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