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Ersa Ismailov

@ersaismailov

Senior QA Automation Engineer at Ramp Network who expanded automated coverage of critical transaction flows from ~52% to ~78%.

Poland

Message

At Ramp Network, I led API and mobile automation initiatives for crypto payment and Web3 financial services, increasing automated coverage of critical transaction flows from ~52% to ~78%. I built and maintained API and UI automation suites and tested transaction scenarios including idempotency, retries, and failure recovery.

At Otrium, I built API and UI test automation that increased regression coverage from ~28% to ~65%, and reduced regression execution time from ~2.5 days to ~1 day. Earlier at COLIBRIX.ONE, I built UI and API automation for payment, transaction, wallet, and webhook workflows.

Experience

Work history, roles, and key accomplishments

Senior QA Automation Engineer

Ramp Network

Apr 2024 - Sep 2026 (2 years 5 months)

Led API and mobile automation for crypto payment and Web3 financial services, increasing automated coverage of critical transaction flows from ~52% to ~78%. Built and maintained automation suites in Java, TypeScript, REST Assured, Selenium, Playwright, and Appium, reducing manual regression effort by ~45%.

Java TypeScript Rest Assured Selenium Playwright Appium gRPC Protobuf Kafka Claude Code Qodo AI Assisted Test Generation Testing Automation API Testing Mobile Testing CI CD

Senior QA Automation Engineer

Otrium

Apr 2022 - Feb 2024 (1 year 10 months)

Built API and UI test automation using Java, Python, Selenium, REST Assured, and Cucumber, increasing regression coverage from ~28% to ~65%. Reduced regression execution time from ~2.5 days to ~1 day and established p95 latency baselines for 10 APIs.

Java Python Selenium Rest Assured Cucumber Gherkin API Testing Regression Testing Performance Testing Mentorship

QA Engineer

COLIBRIX.ONE

Jan 2020 - Mar 2022 (2 years 2 months)

Built UI and API automation for payment, transaction, wallet, and webhook workflows using Java, Selenium, REST Assured, and JUnit. Established response-time baselines for critical payment APIs and reduced manual verification effort by ~40%.

Java Selenium Rest Assured Junit API Testing Automation Jenkins Risk Based Testing