Oleksii Koliohlo

Lead Automation Test Engineer

Lead Test Automation Engineer with over 9 years of experience building scalable test frameworks across web, mobile, and API platforms using Selenium WebDriver, Appium, Postman, and modern automation tools. Proven track record in reducing testing cycles and improving defect detection rates through comprehensive CI/CD integration with Jenkins and version control systems. Skilled in developing robust automated test scripts that ensure high-quality code delivery through systematic testing approaches. Experienced leading QA teams in Agile environments, driving testing processes from planning through execution while maintaining high test coverage and delivering releases on schedule with minimal defects.

Professional Experience

Company: GlobalLogic, Los Angeles, USA

Duration: Apr 2021 - Present

Role: Senior test automation engineer

Project Description: Healthcare project

Responsibilities:

  • Designed scalable automation framework for backend services, enabling efficient API testing and supporting continuous integration workflows
  • Developed custom performance testing tool adopted by 12+ team members, streamlining data collection and reducing manual effort across project workflows
  • Increased test coverage to 75% by implementing new automated test scripts and extending framework functionality aligned with project strategy
  • Reduced test execution time by 25% through script optimization and code refactoring, accelerating feedback loops and improving dev-QA collaboration
  • Analyzed and managed test requirements including scope definition, test type prioritization, coverage tracking, and impact analysis of test results on product requirements
  • Enhanced framework stability and maintainability by refactoring core libraries, adding performance metrics, and implementing monitoring capabilities for better analysis
  • Collaborated with cross-functional stakeholders including customers, development teams, and project leads to align testing strategy, clarify requirements, and expedite bug resolution

Technologies: Appium, Java, Python, REST API, Postman, JavaScript

Company: Luxoft, Odesa, Ukraine

Duration: Aug 2019 - Mar 2021

Role: Team Leader, Software QA Automation Engineer

Project Description: Automotive project

Responsibilities:

  • Led team of 7 QA automation engineers, establishing clear role definitions, accountability frameworks, and performance metrics that increased team velocity by 25% and reduced defect escape rate by 40%
  • Redesigned automation strategy and framework architecture, implementing industry best practices that improved test maintainability by 20% and reduced false positive rates by 30%
  • Expanded automated test coverage from 65% to 80% through strategic test planning, framework refactoring, and alignment with product roadmap priorities
  • Drove QA process improvements by identifying bottlenecks in existing procedures, implementing solutions that reduced testing cycle time and standardizing practices across the QA organization
  • Partnered with product, development, and stakeholder teams to define testing requirements, align on acceptance criteria, and ensure comprehensive test case coverage for all releases
  • Mentored QA engineers on automation best practices, code quality standards, and debugging techniques, fostering technical growth and knowledge sharing within the team
  • Established quality metrics and reporting frameworks, providing leadership with visibility into test coverage, defect trends, and release readiness

Technologies: Python, Git, Jira, Jenkins, PyCharm IDE, CANoe

Company: Luxoft, Odesa, Ukraine

Duration: May 2018 - Aug 2019

Role: QA Automation Engineer

Project Description: Automotive project

Responsibilities:

  • Designed and developed automated test suites for regression and functional testing across integration tasks and release builds, achieving 85% test coverage and reducing manual testing effort
  • Implemented Page Object Model design pattern, improving test maintainability and reducing code duplication by 40%, enabling faster test development for new features
  • Executed and maintained more than 1000 automated test scripts using project-oriented custom testing system, analyzing results to identify defects with 30% accuracy and ensuring high software quality standards
  • Collaborated with cross-functional teams including developers and analysts to define comprehensive test scenarios, align on acceptance criteria, and ensure thorough coverage of functional requirements
  • Enhanced automation framework capabilities by contributing to continuous improvement initiatives, adding new functionality, and optimizing existing test infrastructure
  • Improved QA processes by identifying bottlenecks in intercomponent interfaces, proposing solutions that reduced testing defects by 25%

Technologies: Python, Git, Jira, Jenkins, PyCharm IDE, CANoe

Company: Luxoft, Odesa, Ukraine

Duration: Oct 2016 - May 2018

Role: Manual QA Engineer

Project Description: Automotive project

Responsibilities:

  • Created and executed over 300 comprehensive test cases for functional, regression, integration, system, and acceptance testing, ensuring thorough coverage of product requirements
  • Identified and documented critical defects through systematic testing and exploratory testing approaches, using JIRA to track issues from discovery through resolution
  • Conducted exploratory testing to uncover edge cases and usability issues, leading to 10% product improvements and enhanced user experience
  • Collaborated with cross-functional teams including developers and business analysts to clarify requirements, define test scenarios, and ensure alignment between expected and actual functionality
  • Performed comprehensive test planning by reviewing customer requirements, defining test scope, and creating detailed test strategies for each release cycle
  • Provided actionable feedback on bugs, performance issues, and quality concerns throughout the development lifecycle
  • Executed multiple testing types including smoke, sanity, functional, regression, integration, and UAT testing across UI platform

Technologies: JIRA, Jenkins, Stash, FTP, SVN, CANoe

Technical Skills

Programming & Automation

Python Python

Designed and implemented multiple advanced Python-based automation frameworks with a complex OOP architecture integrating REST API testing, Desktop app and Web UI objects verification, and database queries. Developed a customized reporting module tailored to project-specific metrics, significantly enhancing test traceability, maintainability, and CI/CD integration.

Java Java

Designed and developed a mobile automation framework as a Gradle-based project with an OOP architecture and Page Object Model (POM) structure, integrating both API and UI testing modules. Leveraged Appium for Android automation to enable scalable, maintainable, and efficient mobile test execution

JavaScript JavaScript

Designed JavaScript-based test scripts as JSON collections in Postman with robust token management and dynamic data handling across environment collections to validate backend user service endpoints efficiently and reliably

Gherkin Gherkin UI Automation Appium Squish Cucumber Cucumber Playwright Playwright Gradle Gradle

Tools & Technologies

Jira API Jira API JMeter JMeter Postman Postman PyCharm PyCharm IntelliJ IntelliJ IDEA Jenkins Jenkins Pipelines BitBucket BitBucket Code Review Code Review Generative AI Generative AI MCP Servers Claude Claude Junie Junie Windsurf Cascade AI

Testing Methodologies

API Testing Black Box Testing GUI/Usability Testing Exploratory Testing Test Design Mobile Testing Regression Testing Web Testing Manual Functional Testing

Project Management

Jira Jira Administration Confluence Confluence Test Management Defect Management Estimations Problem Resolution Reporting Risk Management Negotiation Schedule Optimization Team Leading

Education and Certifications

Institution: Accredited University in the United States

Dates Attended: October 2022

Qualification(s): Associate of Science Degree in Computer Information Systems

Major Subject(s): Programming Fundamentals (Java, Python), Software Testing

Contact

Let's connect! Whether you're looking for a skilled QA professional, need consultation on test automation, or want to discuss potential collaboration opportunities, I'd love to hear from you.