Available to hire
I’m Serhii Riabko, a QA leader and quality transformation expert with 10+ years of hands-on experience across gaming, healthcare (HIPAA-aligned), fintech, and SaaS. I focus on building practical, engineering-driven QA models—moving teams from mostly manual testing to smarter automation, risk-based strategies, and clear quality gates that improve release confidence.
I enjoy leading distributed teams, partnering closely with Product and Engineering to sharpen requirements and acceptance criteria, and driving systemic improvements through root-cause analysis. From creating QA process documentation used company-wide to integrating CI/CD and automation frameworks (including Python/Selenium/PyTest), I help organizations reduce defect escape rates, strengthen compliance in high-risk domains, and make quality measurable from planning through production.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Language
English
Advanced
Ukrainian
Fluent
Russian
Fluent
Work Experience
QA Engineer at Jarvis Heart (SharksCode)
November 1, 2024 - July 1, 2025Analyzed production issues and reduced recurrence; standardized bug reporting; mentored junior QA; contributed to test plans and workflows; collaborated with BAs and product teams; facilitated cross-team knowledge sharing; performed web and mobile testing; API testing, performance/security testing, and requirement clarifications.
QA Engineer at JarvisHeart (SharksCode)
January 1, 2024 - January 1, 2025QA Lead at EMEA, Brno
December 1, 2023 - PresentDeveloped and documented QA processes; analyzed production issues and reduced recurrence; standardized bug reporting for efficient communication with development; mentored junior QA members and improved overall team performance; managed parallel QA projects with timely, high-quality delivery; built test plans and workflows; collaborated with Business Analysts and product teams; facilitated cross-team communication and knowledge sharing; conducted API testing, performance/security testing, and requirements clarification.
QA Lead at EMEA
December 1, 2023 - PresentDeveloped and documented QA processes. Analyzed production issues and reduced their recurrence. Improved documentation in collaboration with stakeholders. Mentored junior QA members and improved overall team performance.
Test Manager & Senior QA Engineer at Appboxo (Singapore, Remote)
October 1, 2021 - January 31, 2024Built a QA function from the ground up: defined processes, hired the team, and established quality standards across 3 concurrent projects spanning web, iOS/Android mobile, and backend. Implemented a Python/Selenium/PyTest automation framework that reduced daily test cycle time from 4 hours to 40 minutes (~90% efficiency gain). Integrated Jenkins with AWS to run automated tests after every build. Authored test plans, workflows, and quality acceptance criteria for each project, and analyzed production defects and testing gaps to introduce targeted preventive measures. Trained and mentored QA engineers on automation best practices and product testing strategies, while coordinating partner processes through Salesforce (Service Cloud).
Test Manager / Team Lead at Appboxo
October 1, 2021 - January 1, 2024Built test plans and workflows; provided evaluation metrics to management. Worked closely with Business Analysts and product teams. Wrote automation scripts and identified root causes, improving test coverage and reducing production defects.
Test Manager / QA / PM at Solve.Care
June 1, 2020 - October 1, 2021Reviewed and authored test cases, conducted API testing, and managed databases. Defined acceptance strategies collaborating across roles and trained junior team members.
Test Manager & Quality Engineer at Solve.Care
January 1, 2020 - October 31, 2021Combined QA, Business Analyst, and Project Manager responsibilities for a HIPAA-compliant healthcare platform. Built testing strategies around medical workflows, encryption requirements, and HIPAA compliance. Reviewed and authored healthcare workflow test cases, executed API testing using Postman and Swagger, and validated data in relational and NoSQL databases. Trained junior QA engineers on healthcare-specific quality standards and compliance expectations. Managed a third-party QA vendor to ensure adherence to quality standards, and collaborated with Salesforce (Service Cloud, Tableau CRM) for patient/provider workflows.
Software Test Engineer at Solve.Care
January 1, 2020 - June 1, 2020Performed manual testing, API testing with Postman, and automated testing using Puppeteer. Built test plans and collaborated with cross-functional teams.
Software Test Engineer at BetaLab
January 1, 2019 - January 1, 2020Created and optimized test cases; web and mobile testing; automation scripts; CI/CD integration with Jenkins, Kibana, AWS.
Software Test Engineer at SoftServe
January 1, 2019 - January 1, 2020Manual testing; API testing; automation with Puppeteer (JavaScript); used Postman, Swagger; built test plans and workflows; collaborated with BA/PM; contributed to QA documentation.
Software Test Engineer at Betlab
January 1, 2019 - January 1, 2020Created and optimized test cases, performed web and mobile testing, and fulfilled BA and PM duties. Implemented defect tracking systems and mentored junior testers.
Software Test Engineer at SoftServe
November 1, 2018 - February 1, 2019Performed manual testing, defect reporting, and UI testing. Created test cases and collaborated with teams to improve defect detection.
QA / BA / PM at ISD Design
October 1, 2017 - November 1, 2018Mobile and web testing; API testing; AWS, JIRA, Kibana; BA/PM duties; requirements gathering; led junior testers; contributed to QA documentation.
QA / BA / PM at Solvve (ISD Design)
October 1, 2017 - November 1, 2018Performed mobile and web testing, created and optimized test cases, and fulfilled BA and PM duties. Trained junior testers.
Software Test Engineer at Luxoft
February 1, 2016 - November 1, 2017Manual testing; database work; customer communication; requirements clarification; defect tracking; TFS, JIRA, Redmine, TestLink.
Software Test Engineer / Support Specialist at Luxoft
February 1, 2016 - November 1, 2017Conducted manual testing and customer support, working with TFS, Jira, and TestLink.
Software Test Engineer at Sunbay
August 1, 2015 - February 1, 2016Conducted manual testing, database work, and customer communication.
Education
Master of Science at Classic Private University
January 1, 2015 - January 1, 2017Master of Science at Classic Private University
January 1, 2012 - January 1, 2013Master of Science at Dnipropetrovsk State Agrarian University
January 1, 2005 - January 1, 2011Master of Science in Computer Science and Programming at Classic Private University (Zaporizhzhia, Ukraine)
January 1, 2015 - January 1, 2017Master of Science in Administrative Management at Classic Private University (Zaporizhzhia, Ukraine)
January 1, 2012 - January 1, 2013Master of Science in Agricultural Machinery at Dnipropetrovsk State Agrarian University
January 1, 2005 - January 1, 2011Master of Science – Computer Science and Programming at Classic Private University
January 1, 2015 - January 1, 2017Master of Science – Administrative Management at Classic Private University
January 1, 2012 - January 1, 2013Qualifications
Python automation (Hillel, Selenium, PyTest, Page-object structure)
January 1, 2023 - January 15, 2026Python Certificate Beginner (Sololearn)
January 1, 2023 - January 15, 2026JavaScript Pro (Hillel)
January 1, 2020 - January 15, 2026Oracle 11g, PL/SQL Basics (Luxsoft)
January 1, 2017 - January 15, 2026JavaScript Frontend (Luxsoft)
January 1, 2017 - January 15, 2026QA TestLab (Software Testing)
January 1, 2014 - January 15, 2026Exigen Services (Junior Test Engineer)
January 1, 2015 - January 15, 2026SkillsUp (Software Testing Course)
January 1, 2014 - January 15, 2026BrainBasket (Development courses)
January 1, 2014 - January 15, 2026Python automation (Hill el, Selenium, PyTest, Page-object structure)
January 1, 2023 - April 22, 2026Python Certification Beginner (SoloLearn)
January 1, 2023 - April 22, 2026JavaScript Pro (Hillel)
January 1, 2020 - April 22, 2026Oracle 11g, PL/SQL Basics (Luxsoft)
January 1, 2017 - April 22, 2026JavaScript Frontend (Luxsoft)
January 1, 2017 - April 22, 2026QA Test Lab (Software Testing)
January 1, 2014 - April 22, 2026Skills Up (Software Testing Course)
January 1, 2014 - April 22, 2026Brain Basket (Development courses)
January 1, 2014 - April 22, 2026Python Automation (Hillel, 2023)
January 1, 2023 - September 16, 2026JavaScript Pro (Hillel, 2020)
January 1, 2020 - September 16, 2026Oracle 11g & PL/SQL Basics (Luxsoft, 2017)
January 1, 2017 - September 16, 2026QA TestLab – Software Testing Fundamentals (2014)
January 1, 2014 - September 16, 2026Industry Experience
Software & Internet, Professional Services, Media & Entertainment, Gaming, Healthcare, Financial Services
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Hire a QA Engineer
We have the best qa engineer experts on Twine. Hire a qa engineer in Zaporizhzhia today.