Hello! I'm Sumant Kumar, a Berlin-based Quality Assurance Engineer with a passion for building robust automation frameworks and ensuring top-notch product quality across mobile and web apps. I thrive in collaborative teams, mentor junior engineers, and enjoy combining Playwright, Appium, Python, and TypeScript to deliver reliable releases and streamlined CI/CD pipelines.

Sumant Kumar

Hello! I'm Sumant Kumar, a Berlin-based Quality Assurance Engineer with a passion for building robust automation frameworks and ensuring top-notch product quality across mobile and web apps. I thrive in collaborative teams, mentor junior engineers, and enjoy combining Playwright, Appium, Python, and TypeScript to deliver reliable releases and streamlined CI/CD pipelines.

Available to hire

Hello! I’m Sumant Kumar, a Berlin-based Quality Assurance Engineer with a passion for building robust automation frameworks and ensuring top-notch product quality across mobile and web apps.

I thrive in collaborative teams, mentor junior engineers, and enjoy combining Playwright, Appium, Python, and TypeScript to deliver reliable releases and streamlined CI/CD pipelines.

See more

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
See more

Language

English
Fluent

Work Experience

Senior Quality Assurance Engineer at Circus Group
September 1, 2024 - Present
Analyzed requirements and enhanced product reliability by 25% by developing comprehensive regression test suites for robotic chef and recipe management apps. Amplified test coverage by organizing bug bashes through manual testing, reducing defect leakage to production by 20% and improving user experience. Developed a web automation framework with Playwright and TypeScript covering high efficiency. Automated Android and iOS tests with Appium for native and React development, increasing test coverage by 70% and improving mobile app quality. Integrated Patrol automation with Flutter Integration Test. Trained and mentored junior QA engineers and implemented a CI/CD pipeline, improving team efficiency and daily regression test execution. Fostered quality assurance for mobile and web apps, including automated API testing with Python and Pytest.
Quality Assurance Engineer at Payoneer GmbH
June 1, 2022 - Present
Reduced payment fraud by 80% by identifying 100 transactions, enhancing risk mitigation. Enforced end-to-end automation framework with 150 test cases using Playwright, TypeScript, and Pytest. Implemented CI/CD pipelines with automation for production environments, and surfaced build validations. Built and maintained API test suites with Postman and Pytest. Elevated QA coverage and reduced release cycles by driving automated tests for mobile and web apps.
Quality Assurance Engineer at Payoneer US
August 1, 2019 - Present
Led QA team on a major PwC US project from Bengaluru, India. Delivered a flight and hotel booking application for Android and iOS, ensuring high performance and user satisfaction. Developed mobile automation frameworks for Android and iOS using Appium, covering 200 processes and reducing maintenance time by 40% with Dockerized suites. Boosted accessibility ratings by 20% through comprehensive testing against WCAG and other guidelines. Improved automation efficiency with BrowserStack and LambdaTest; increased reliability for native UI testing. Coordinated cross-functional teams across 4 projects to create robust tests and expedite issue resolution.
Senior Quality Assurance Engineer at Circus Group
September 1, 2024 - Present
Led QA initiatives across Agile teams, implemented comprehensive regression suites, and mentored junior QA engineers. Improved test coverage by 25% by developing reusable regression tests for robotic chef and recipe management apps; automated mobile and web tests using Playwright, TypeScript, and PyTest; integrated CI/CD pipelines and bug tracking with Jira. Coordinated cross-functional testing across 5 microservices and enhanced release quality.
Quality Assurance Engineer at Payoneer GmbH
August 31, 2024 - October 8, 2025
Led QA at Payoneer GmbH in Munich to reduce payment fraud by 80% by identifying 100 risk transactions and implementing robust test coverage. Enforced end-to-end automation framework for Android and iOS using Playwright, TypeScript, and Python; Dockerized test suites; created CI/CD pipelines with automated tests, increasing build validation speed by 40%. Collaborated with 4 cross-functional teams to create comprehensive test suites across 5 microservices; tracked issues in Jira and prepared reports.
Senior Automation QA at PricewaterhouseCoopers US
August 1, 2019 - Present
Senior Automation QA at PwC US in Bengaluru led QA automation for a major PwC project, enhancing healthcare software quality for a major client. Delivered a seamless Android and iOS flight and hotel booking application, ensuring high performance and user satisfaction. Built mobile automation frameworks covering 200 processes with Postman and Rest Assured; reduced maintenance time by 40%. Implemented CI/CD test pipelines with Jenkins; integrated with multiple tooling to support end-to-end testing across mobile and web platforms.
Senior Associate at PricewaterhouseCoopers US
August 1, 2019 - Present
Coordinated and led the testing team in Kaiser Permanente. Decreased IT workload by 30% through improved QA processes and established automation methodologies, frameworks, and tools. Proficient in various automation testing tools, with experience in CI/CD pipelines.
Senior Quality Assurance Engineer at Wipro Technology
July 1, 2019 - October 8, 2025
Contributed to the Digital practice and mobility team to establish best practices for automation. Worked closely with development teams to implement Jenkins Pipeline's and designed automation tests for web and mobile applications.
Senior Quality Assurance Engineer at Cirrus Group
September 20, 2024 - Present
Analyzed requirements and enhanced product reliability by 25% by developing comprehensive regression test suites for robotic chef and recipe management apps. Amplified test coverage by organizing Bug Bash testing, reducing defect leakage to production by 20%. Built web automation framework with Playwright and TypeScript covering 100% test coverage. Automated Android and iOS apps with Appium for native and React Native development, increasing test coverage by 70% and improving mobile app quality. Integrated Patrol automation with Flutter Integration Test. Trained junior QA engineers and implemented CI/CD pipelines, improving team efficiency and daily regression test execution. Fostered quality assurance for mobile and web apps, including automated API testing with Python and Pytest.
Quality Assurance Engineer at Payoneer GmbH
June 1, 2022 - Present
Reduced payment fraud by 80% by identifying 100 transactions, enforcing an end-to-end automation framework with Playwright, TypeScript, and Python. Implemented CI/CD pipelines with Dockerized test suites, increasing build validation speed by 40% and test efficiency by 30% using Dockerized suites. Collaborated with four cross-functional teams to create comprehensive test suites for early issue detection and boosted release quality. Managed Kafka topics across five microservices, maintaining QA environment. Verified end-to-end payment flows, integrating payment gateway with acquiring and issuing banks. Monitored test execution and bug tracking to ensure comprehensive issue resolution.
Senior Quality Assurance Engineer at Circus Group
September 20, 2024 - Present
Analyzed requirements and enhanced product reliability by 25% by developing comprehensive regression test suites for robotic chef and recipe management apps. Amplified test coverage by organizing bug bashes through manual testing, reducing defect leakage by 20% and improving user experience. Developed a web automation framework with Playwright and TypeScript covering 100% efficiency. Automated Android and iOS tests with Appium, increasing test coverage by 70% and improving mobile app quality. Integrated Patrol automation with Flutter Integration Test. Trained and mentored junior QA engineers and implemented a CI pipeline, improving team efficiency and daily regression test execution. Fostered quality assurance for mobile and web apps, including automated API testing with Python and Pytest.
Quality Assurance Engineer at Payoneer GmbH
June 1, 2022 - Present
Reduced payment fraud by 80% by identifying 100 transactions, enhancing risk mitigation. Enforced end-to-end automation framework with 150 test cases using Playwright, TypeScript, and Python. Implemented CI/CD pipelines with automated tests, increasing build validation speed by 40% and test efficiency by 30% using Dockerized suites. Collaborated with four cross-functional teams to create comprehensive test suites for early issue detection and boosted release quality. Managed Kafka topics across five microservices, maintaining a scalable QA environment. Verified end-to-end payment flow, integrated payment gateway with acquiring and issuing banks. Monitored test execution and bug tracking to ensure comprehensive issue resolution.

Education

Bachelor of Technology at National Institutes of Technology
January 1, 2011 - October 8, 2025
Bachelor of Technology at National Institutes of Technology, Bangalore
January 11, 2030 - January 1, 2011
Bachelor of Technology at National Institute of Technology, Mizoram
April 1, 2011 - May 1, 2015
Bachelor of Technology at National Institutes of Technology
January 1, 2011 - October 8, 2025
Bachelor of Technology at National Institute of Technology
January 1, 2011 - October 8, 2025

Qualifications

ISTQB Foundation Level
January 11, 2030 - October 8, 2025
Certified Jenkins Engineer
January 11, 2030 - October 8, 2025

Industry Experience

Software & Internet, Professional Services, Healthcare