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Vladislav Mamchenko

@vladislavmamchenko

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QA engineer | Web-services, web- application | Looking for opportunity

Russian Federation

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What I'm looking for

I'm looking to contribute to a web or mobile product team where mistakes are costly and systematic testing can reduce critical release defects throughout the product lifecycle.

I'm a QA engineer with experience in manual and semi-automated testing of web applications and services - from requirements analysis and test design through to test cases, checklists, and test plans. I perform regression, integration, smoke, cross-browser, negative, and API testing, write SQL queries for PostgreSQL, and work with Kafka. I also maintain test documentation, log bugs in Jira and Confluence, and report results in TestIT / Allure TestOps. I work within Scrum, in close collaboration with analysts and developers, and I'm able to argue the severity of a defect in terms of business risk. I'll be most effective in teams building web or mobile products where mistakes are costly, and who want to systematically reduce the share of critical defects in releases at every stage of the product lifecycle

Experience

Work history, roles, and key accomplishments

QA Engineer

Antara

Oct 2025 - Sep 2026 (11 months)

Performed manual functional testing of web applications, including backend and frontend, and verified API integrations. Achieved a 25% increase in correctly processed applications and a 35% reduction in manual correction of accruals.

DevTools Postman Swagger Kafka DBeaver TestIT TestOps Jira Confluence SQL PostgreSQL XML JSON HTTP REST SOAP Scrum

QA Engineer

Agent Umnyy Polis

Oct 2024 - Sep 2025 (11 months)

Conducted manual functional testing of web applications, including integration and regression testing, and verified API responses. Reduced critical release defects by 35% and increased policy-issuance conversion by 12%.