Oksana

OKSANA DUMIN
Address: Lviv, Ukraine
Phone: [open contact info](look above in the "contact info" section)
Email: [open contact info](look above in the "contact info" section)
LinkedIn: [open contact info](look above in the "contact info" section)
SUMMARY
QA Lead / Senior QA with 10+ years of experience in backend and server-side testing within high-load
systems. Experienced in release ownership, QA team coordination, and cross-team alignment in fast-paced
environments. Strong focus on quality strategy, risk management, and ensuring stable releases through
proactive testing and production issue analysis.
WORK EXPERIENCE
Product Madness - QA Team Lead / Senior QA Engineer August 2021 - Present
• Leading QA efforts for backend systems supporting high-load mobile gaming platform
• Owning release validation across DEV/UAT environments and ensuring production readiness
• Supporting regular releases (every 2 weeks)
• Coordinating QA activities across multiple teams and parallel streams (3–10 engineers)

• Improved release stability by identifying critical production-impacting issues before deployment
• Reduced regression effort by optimizing test coverage and focusing on high-risk areas
• Onboarded and supported multiple QA engineers, improving team ramp-up time
• Proactively identified edge cases in complex flows (missions, CRM, payments) not covered by
requirements
• Contributed to improving QA processes and cross-team communication

• Working with backend systems involving multiple service integrations in a high-load environment
• Performing API testing (REST) with focus on edge cases, error handling, and data validation
• Analyzing logs and metrics using Grafana and NewRelic

• Executing performance testing runs, analyzing results, and identifying bottlenecks
• Investigating production issues and validating fixes with developers
• Identifying high-risk areas and ensuring proper coverage before releases
• Supporting release decision-making (go/no-go readiness validation)
GlobalLogic September 2020 – August 2021
Pindify July 2019 – August 2020
Remit March 2015 – March 1018
Edvantis April 2009 – August 2013

ADDITIONAL INFORMATION
Technical Skills:
API: Postman
Monitoring: Grafana, NewRelic
Debugging: Charles Proxy, DevTools
Test Management: TestRail
Issue Tracking: Jira
Performance: experience executing performance testing
AI: using ChatGPT for test design, analysis, and debugging support
EDUCATION
Lviv Polytechnic National University, Lviv, Ukraine
M.Sc. in Computer Systems and Networks 2005-2006
Lviv Polytechnic National University, Lviv, Ukraine
B.Sc. in Computer Engineering 2001-2005

English: Upper-Intermediate (B2+) - daily communication with international teams (spoken and written)