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Stefan Brezeanu

@stefanbrezeanu

Message

Senior QA leader specializing in backend and API testing for transaction-heavy systems.

Romania

Message

What I'm looking for

I seek a hands-on senior QA or QA leadership role focused on backend/API testing, release governance, and scaling QA teams within Agile or remote EU environments.

I am a Senior QA leader with over 10 years' experience delivering large-scale web and mobile platforms, focusing on backend validation, API testing, and transaction systems. I lead and mentor large QA organizations while remaining technically hands-on with microservices testing, CI/CD validation, and production monitoring.

I have stabilized high-risk projects, improved release stability, and reduced regression leakage by strengthening backend-focused QA practices and governance. I am ISTQB® certified, experienced with Kafka/Kibana flows, Postman/Swagger API validation, and have led teams of up to 60 engineers across Agile environments.

Experience

Work history, roles, and key accomplishments

Senior QA Engineer

Playtika

Jan 2020 - Jan 2024 (4 years)

Led QA for WSOP real-money gaming platform, improving release stability and reducing regression leakage by strengthening backend/API-focused validation and release governance.

API Testing Postman Swagger Kafka Kibana TeamCity CI CD Validation

QA Project Manager

Amber

Jan 2015 - Jan 2020 (5 years)

Managed 30+ QA engineers across concurrent projects, optimized shift planning to reduce costs, and built scalable test coverage and quality reporting that improved delivery predictability.

Test Planning Workforce Management TestRail Jira Mentoring

Senior QA Test Lead

Electronic Arts

Jan 2010 - Jan 2015 (5 years)

Supervised 9 team leads and 60+ QA engineers on AAA titles, stabilized defect flow during high-risk deliveries, and improved KPI-based reporting and stakeholder transparency.

Regression Testing Functional Testing Test Strategy KPIs