Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Hi there! I’m Alexei Teterev, a QA Engineer with 4+ years of experience testing web and mobile applications in banking and SaaS domains. I specialize in end-to-end testing, UI automation with C# and Playwright, and REST API validation with Postman. I contribute to Agile release cycles and strive to improve quality through smart automation and thorough validation. I’m passionate about reducing manual testing through automation, mentoring new QA teammates, and ensuring quality before production deployments. I enjoy refining processes, analyzing logs in Kibana for faster defect confirmation, and collaborating with cross-functional teams to deliver reliable software.…Hi there! I’m Alexei Teterev, a QA Engineer with 4+ years of experience testing web and mobile applications in banking and SaaS domains. I specialize in end-to-end testing, UI automation with C# and Playwright, and REST API validation with Postman. I contribute to Agile release cycles and strive to improve quality through smart automation and thorough validation. I’m passionate about reducing manual testing through automation, mentoring new QA teammates, and ensuring quality before production deployments. I enjoy refining processes, analyzing logs in Kibana for faster defect confirmation, and collaborating with cross-functional teams to deliver reliable software.

Alexei Teterev





Hi there! I’m Alexei Teterev, a QA Engineer with 4+ years of experience testing web and mobile applications in banking and SaaS domains. I specialize in end-to-end testing, UI automation with C# and Playwright, and REST API validation with Postman. I contribute to Agile release cycles and strive to improve quality through smart automation and thorough validation. I’m passionate about reducing manual testing through automation, mentoring new QA teammates, and ensuring quality before production deployments. I enjoy refining processes, analyzing logs in Kibana for faster defect confirmation, and collaborating with cross-functional teams to deliver reliable software.…Hi there! I’m Alexei Teterev, a QA Engineer with 4+ years of experience testing web and mobile applications in banking and SaaS domains. I specialize in end-to-end testing, UI automation with C# and Playwright, and REST API validation with Postman. I contribute to Agile release cycles and strive to improve quality through smart automation and thorough validation. I’m passionate about reducing manual testing through automation, mentoring new QA teammates, and ensuring quality before production deployments. I enjoy refining processes, analyzing logs in Kibana for faster defect confirmation, and collaborating with cross-functional teams to deliver reliable software.

Available to hire

Hi there! I’m Alexei Teterev, a QA Engineer with 4+ years of experience testing web and mobile applications in banking and SaaS domains. I specialize in end-to-end testing, UI automation with C# and Playwright, and REST API validation with Postman. I contribute to Agile release cycles and strive to improve quality through smart automation and thorough validation.

I’m passionate about reducing manual testing through automation, mentoring new QA teammates, and ensuring quality before production deployments. I enjoy refining processes, analyzing logs in Kibana for faster defect confirmation, and collaborating with cross-functional teams to deliver reliable software.

Skills

Experience Level

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Polish

Advanced

Russian

Fluent

Work Experience

QA Engineer (Mobile & Web) at Shiji Poland

August 1, 2023 - Present

Performed end-to-end testing of enterprise SaaS property management system used in hospitality domain. Developed and maintained ~80 UI automated regression tests using C# and Playwright (POM-based structure). Increased automation coverage of critical business flows, reducing manual regression effort by ~25–30%. Contributed to monthly release cycles ensuring regression stability before production deployment. Owned regression validation prior to production deployment. Validated REST API responses and JSON structures using Postman. Monitored CI pipelines to ensure successful build and automated test execution before release. Produced hotfix validation during tight deadlines. Analyzed logs in Kibana for issue verification and faster defect confirmation. Mentored new QA team members during onboarding period.

QA Engineer (Mobile & Web) at Bank Millennium SA

August 1, 2021 - August 1, 2023

Drove testing of mobile and web banking applications within Agile Scrum teams. Participated in 2 release cycles across enterprise SaaS domain. Identified high-priority and production-blocking defects; performed regression, exploratory, integration, and UAT testing. Backend validation using REST API tools (Postman, Swagger, SoapUI). Monitored CI pipelines to ensure successful build and automated test execution before release. Supported production hotfix validation under tight deadlines. Mentored new QA team members.