Available to hire
I’m Oles Tsaruk, a Lead SDET and Test Automation Architect with 5+ years of building production-grade automation for remote-first engineering teams. I architect AI-powered QA orchestration platforms, craft human-in-the-loop quality gates to curb AI hallucinations, and drive cross-team adoption of reliable automation across UI, API, and data layers.
I lead a 6-engineer team (onshore/offshore), mentor engineers, and steer architecture roadmaps, migrating frameworks, and delivering rapid feedback to enable continuous release readiness.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Language
Ukrainian
Fluent
Polish
Advanced
Russian
Fluent
English
Fluent
Work Experience
QA Automation Engineer at Colibri Group
April 1, 2025 - PresentRefactored and optimized an existing Cypress automation framework, implemented Page Object Model for maintainable and scalable testing, developed dynamic reusable commands, integrated Microsoft SQL and pgAdmin queries for end-to-end data validation, enhanced API testing strategy for REST endpoints, and applied prompt engineering to enable AI-driven test generation and failure analysis. Optimized CI/CD workflows with Jenkins, RunDeck, and Docker. Led weekly Automation QA syncs with a team of 5 engineers and aligned with Bitbucket for source control and Zephyr Squad for test management, increasing automation coverage to 85% and reducing regression risk.
QA Automation Engineer at Playball
March 1, 2022 - March 1, 2025Designed, developed, and maintained scalable test automation frameworks using Cypress, Playwright, and JavaScript for UI, API, and performance testing; integrated Postman, BrowserStack, and JMeter; streamlined CI/CD pipelines with Node.js, GitHub Actions, AWS, and Azure; reduced manual testing efforts by 50% and increased coverage by 60%; engineered reusable test suites and modular components to improve front-end and back-end integration reliability.
Software QA Engineer at Prominvestbank
November 1, 2020 - December 1, 2021Collaborated in Agile/Scrum teams using Jira for test case management, defect tracking, and sprint planning; performed functional, system, and API testing with Postman for banking workflows; conducted cross-browser and mobile device testing with BrowserStack to ensure UI/UX consistency; supported performance testing with JMeter and used SQL queries for data validation and back-end verification of financial transactions.
Senior QA Automation Engineer at Colibri Group
April 1, 2025 - PresentRefactored and stabilized a Cypress automation framework, implementing custom commands, Page Object Model, shared utilities, and abstraction layers to improve scalability, reliability, and maintainability. Enabled end-to-end data integrity by validating UI, API, and DB through SQL Server and PostgreSQL queries. Expanded REST API automation with request chaining, schema validation, and edge-case testing. Led Cypress to Playwright migration, architecting a TypeScript-based framework with fixtures, POM, environment mapping, and parallel execution. Automated Playwright test suites via Playwright MCP Server and Codegen, leveraging AI-assisted test generation, assertion optimization, and failure diagnostics. Integrated Cypress and Playwright into CI/CD pipelines using Jenkins, Rundeck, and Docker for consistent cross-environment execution and gated releases. Increased automation coverage to 75% and reduced manual regression effort by 90% in an Agile/Scrum team of 5 engineers.
Lead SDET / Senior QA Automation Engineer at Colibri Group
April 1, 2025 - PresentArchitected QA Intelligence Platform — an AI-powered QA orchestration platform built on a custom TypeScript MCP server, integrating Jira, Confluence, Bitbucket, and Zephyr APIs. Implemented human-in-the-loop quality gates to mitigate AI reliability and hallucination risk at the architectural level. Led automation for a cross-functional team of 6 (4 offshore + 2 US). Migrated a 110-test Cypress Smoke suite to Playwright in 3 weeks, redesigned the framework with TypeScript, fixtures, Page Object Model, environment mapping, and parallel execution. Drove Smoke coverage to 95%, API to 90%, and Regression to 70%, cutting the full regression cycle from 5 person-days to 90 minutes. Integrated Zephyr Squad API with Playwright and MCP for real-time test status; implemented end-to-end validation across UI/API/DB; built CI/CD with Jenkins, Rundeck, and Docker. Partnered with QA/Engineering managers to prioritize automation and shape the roadmap; represented QA in company-wide AI strategy discuss
Education
Certificate at BrainStation
March 1, 2022 - May 1, 2022Certificate at Codemify
August 1, 2021 - November 1, 2021Master of Business Administration and Management at WSB University, Wroclaw, Poland
October 1, 2014 - June 1, 2015Master of Laws in International Financial Law at State Tax University, Irpin, Ukraine
September 1, 2007 - June 1, 2012Master’s degree in Business Administration and Management at WSB University
October 1, 2014 - June 1, 2015Master’s degree in International Financial Law at State Tax University
September 1, 2007 - June 1, 2012Master of Business Administration and Management at WSB University, Wroclaw
October 1, 2014 - June 30, 2015Master’s Degree, International Financial Law at State Tax University, Irpin, Ukraine
September 1, 2007 - June 30, 2012Master of Business Administration and Management at WSB University, Wroclaw, Poland
October 1, 2014 - June 30, 2015Master’s Degree, International Financial Law at State Tax University, Irpin, Ukraine
September 1, 2007 - June 30, 2012Qualifications
Data Analytics & Python Programming
March 1, 2022 - May 1, 2022QA Automation Engineer
August 1, 2021 - November 1, 2021Data Analytics & Python Programming
March 1, 2022 - May 1, 2022QA Automation Engineer
August 1, 2021 - November 1, 2021Claude Code and Model Context Protocol
April 1, 2026 - May 17, 2026CS50’s Introduction to AI with Python
January 1, 2026 - May 17, 2026Machine Learning Crash Course
January 1, 2026 - May 17, 2026Prompt Engineering
October 1, 2025 - May 17, 2026ChatGPT Prompt Engineering for Developers
September 1, 2025 - May 17, 2026Data Analytics Professional Certificate
January 1, 2024 - May 17, 2026Data Analytics & Python Programming
May 1, 2022 - May 17, 2026QA Automation Engineer
November 1, 2021 - May 17, 2026Claude Code and Model Context Protocol
April 1, 2026 - May 17, 2026CS50’s Introduction to AI with Python
January 1, 2026 - May 17, 2026Machine Learning Crash Course
January 1, 2026 - May 17, 2026Prompt Engineering
October 1, 2025 - May 17, 2026ChatGPT Prompt Engineering for Developers
September 1, 2025 - May 17, 2026Data Analytics Professional Certificate
January 1, 2024 - May 17, 2026Data Analytics & Python Programming
May 1, 2022 - May 17, 2026QA Automation Engineer
November 1, 2021 - May 17, 2026Industry Experience
Software & Internet, Financial Services, Education, Professional Services, Government, Media & Entertainment
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
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