Mihajlo Tankosic
@mihajlotankosic
I build reliable software through manual testing, defect tracking, and Agile collaboration.
SerbiaWhat I'm looking for
I've delivered manual QA for Guestfriend Hotel Applications, Infochannel, and Patient Portal at Guestfriend (Holycode), designing test plans and cases while testing functionality, regressions, usability, and performance.
Across SaaS, gaming, hospitality, and customer platforms, I've documented defects in JIRA and TestRail, supported Epic Games Launcher users, and tested Ubisoft's Tom Clancy's Ghost Recon Wildlands. I also bring hands-on technical support experience with ManageWP, ProSites, WordPress, hosting, billing, and subscriptions.
Experience
Work history, roles, and key accomplishments
QA Engineer
Guestfriend (Holycode)
Jun 2022 - May 2025 (2 years 11 months)
Designed and executed comprehensive manual test plans and test cases, performed functional, regression, usability, and performance testing, and tracked defects using JIRA and TestRail. Collaborated with developers and product managers in Agile sprints and improved QA processes.
Delivered advanced technical support for ManageWP and ProSites platforms, investigated hosting issues, billing, and subscriptions, and collaborated with development teams.
Gaming Support Agent
5CA
Apr 2020 - Jun 2021 (1 year 2 months)
Supported Epic Games Launcher users, investigated issues, reported bugs, resolved account issues, and mentored new hires.
Quality Assurance Tester
Whyttest
Jun 2018 - Apr 2020 (1 year 10 months)
Executed manual testing for AAA games, performed regression testing and bug tracking, and mentored junior testers. Notable project included Ubisoft's Tom Clancy's Ghost Recon Wildlands.
Contact Center Agent / Service Coordinator
Etihad Airways (GLC)
Apr 2017 - May 2018 (1 year 1 month)
Supported loyalty members, managed bookings, investigated account issues, and collaborated across departments.
Customer Care Representative
The Body Shop (Sitel)
Oct 2016 - Dec 2016 (2 months)
Managed orders, refunds, logistics coordination, and customer service.
Coordinated field engineers, managed SLA work orders, optimized scheduling, and trained new staff.
Education
Degrees, certifications, and relevant coursework
Technical High School Zmaj
High School Diploma, General Studies
2006 - 2010
Completed secondary education at Technical High School Zmaj from 2006 to 2010.
Availability
Location
SerbiaAuthorized to work in
Social media
Job categories
Skills
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