Description

I help companies release stable, reliable digital products by identifying critical issues early and protecting the end-user experience. I am a Senior QA Engineer with over 7 years of hands-on experience in manual, exploratory, and regression testing across mobile (iOS/Android), web, and API-driven systems.

My background is in complex, real-world environments where quality matters: onboarding flows, backend integrations, payment-related logic, connected devices, and production-critical releases. I work closely with developers, product managers, and designers in Agile teams, acting as the voice of quality and risk prevention throughout the development lifecycle.

I focus on what truly matters: clear test coverage, meaningful defect detection, precise reporting, and release confidence. Clients value my reliability, structured thinking, and ability to anticipate issues before they reach users.

Typical deliverables include test strategy support, manual and exploratory testing, detailed defect documentation, regression validation, and release readiness assessments.

Available for high-quality freelance QA missions (10–20 hours per week).

Remote-first. Based in Zurich, Switzerland.

Industry field of expertise

Languages

English
Native or bilingual
German
Basic
Serbian
Native or bilingual
Croatian
Native or bilingual

Workplace preferences

Remote only

Primarily works remotely

Sunrise Communications AG
Senior QA Engineer
September 2018 - Today (7 years and 9 months)
Zürich, Switzerland
• • Led end-to-end system and integration testing across web platforms, mobile applications, backend services, and connected customer devices
• • Performed deep packet and system log analysis using Wireshark and platform logs to isolate root causes and reduce defect re-open rates
• • Designed and maintained structured test suites in Jira, HP ALM, and Octane, improving traceability across requirements, defects, and releases
• • Acted as a quality gate in Agile delivery, supporting Go/No-Go decisions through risk based validation and structured release reporting
• • Identified high-impact pre-release software and firmware defects, improving production stability and reducing post-release incidents
• • Validated API and backend service integrations using Postman and REST services
• • Performed cross-device software and firmware testing on CPEs: Fritz!Box, Huawei, Zyxel, LGE MV
• • Executed end-to-end testing of onboarding, device setup, service configuration, and account management
• • Tested Smart TV and OTT platforms including Samsung Tizen and Apple tvOS
• • Collaborated closelywith development, product, and operations teams on distributed software Tools & Technologies: Postman, REST APIs, SQL (data validation), Jira, HP ALM, Octane, Wireshark, Android & iOS testing, Smart TV platforms (Tizen, tvOS), CPE firmware validation (Fritz!Box, Huawei, Zyxel, Sagemcom, LGE MV), Backend integration, Agile/Scrum
Test Environment Management QA testing Agile method Testing and Quality Assurance API Testing
Bgstyle
Owner — Independent Consulting Practice
January 2001 - January 2017 (16 years)
Zürich, Switzerland
• • Managed operations and client delivery with focus on process optimization and documentation.
• • Managed independent consulting practice with full responsibility for operations, client delivery, and structured process management
• • Developed strong expertise in documentation, workflow optimization, and quality-focused service delivery
• • Built long-term client relationships based on reliability, structured planning, and accountability
CIS Institute
ISO 9000 Quality Manager / Lab Dip Engineer
January 1996 - January 2001 (5 years)
Belgrade, Serbia
• • Led ISO 9000 quality system implementation and internal audits
• • Developed structured documentation, procedures, and compliance processes
• • Trained teams on quality standards and continuous improvement practices