Sergey Y.

Sergey Y.

Kiev, Ukraine
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About Me

QA/SDET/JS Developer with over 10 years of experience in automated testing and quality assurance of web applications. Passionate about quality, business oriented, process and values driven. Initiative, systematic, strategic thinker. Committed to adding maximum business value and achieving outstanding results for any organization, especially product companies and startups on a growth stage.

AI, ML & LLM

Chai TestRail Taiga

Frontend

React JavaScript

Backend

Node.js API Testing Scraping Web Scraping Python

Database

PostgreSQL Database Management Systems (DBMS) Microsoft SQL Server MySQL

DevOps

GitLab CI/CD Docker Hub Jenkins CI/CD Pipelines Docker Amazon Web Services (AWS) Azure AWS Lambda

QA & Testing

Selenium TestCafe Selenium WebDriver Mocha Test Automation Automated Testing Unit Testing Manual Testing Quality Assurance (QA) Automated UI Testing QA Automation QA Testing Mobile App Testing LambdaTest TestComplete

Workflow

Gitlab JIRA Github Postman

Other

Chrome Protractor Capybara SpecFlow .NET Serverless Framework Puppeteer WebDriver WebDriverJS Sinon.JS Playwright WebdriverIO Cucumber TeamCity Travis CI Serenity BDD Subversion (SVN) Squish SoapUI CVS InstallAnywhere Agile Scrum REST Microservices Architecture SDET Shell Scripting RESTful Microservices Signal Analysis Networking Groovy Scripting WebLogic Sauce Labs XRAY Bash C#.NET Ruby Java Groovy C Typescript Windows Ubuntu Visual Studio Code (VS Code) Linux Unix Solaris

Work history

Payall Payment Systems
QA Manager
2022 - 2023 (1 year)
Remote
Didomi
QA Manager
2021 - 2022 (1 year)
Remote
LifeStreet
Senior and Lead Automation QA Engineer
2017 - 2020 (3 years)
Just Eat Takeaway.com
Senior Automation QA Engineer
2015 - 2016 (1 year)
Just Eat Takeaway.com
Automation QA Engineer
2012 - 2015 (3 years)
Toptal
QA
1 - Present (2024 years)
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Project: Multiple projects (Online platform for inventory management, Consent Management Platform, etc.) Accomplishments:  Multiple improvements as a developer consultant including bug fixing, code refactoring, unit test coverage, implementing new features, metric analysis, reporting, etc  Multiple improvements as a QA consultant including creating and running test cases, code quality improvements, test execution stability, CI/CD pipelines improvements, etc.

CAT (via Toptal)
QA Engineer
Present (2025 years)
Halliburton
Senior Automation QA Engineer
Present (2025 years)
Lexus
Senior Automation QA Engineer
Present (2025 years)
Iconectiv
Junior Automation Tester
Present (2025 years)

Showcase

LifeStreet | Test Automation Framework

  • LifeStreet Media is a prominent global in-app advertising solutions provider for Facebook, Apple (iOS), and Android developers with a DSP that provides a user-friendly interface.

  • The UI has been segmented into ten interconnected micro-apps and a robust test automation framework to efficiently test complex UI's has been created.

  • The test automation framework has been seamlessly integrated with industry tools such TestRail, Jira and a QA dashboard, and meetings industry-approved coding best practices.

JustEat | Test Automation Framework

  • Revamped thousands of unreliable test cases into well-crafted ones and developed test automation frameworks for the web UI and eight microservices.

  • Established CI automation pipelines for test and staging environments and designed a dashboard for monitoring test runs.

  • Played a crucial role in the formation of JustEat's international engineering center in Kyiv, leading to successful IPO preparation and the growth of the team from five to over 30 members.

Telcordia | Test Automation Framework

  • Implemented a testing solution for Java GUI applications on the Solaris operating system in Telcordia Test Automation Framework project

  • Exceeded expectations by developing automated tests during initial project phases

  • Successfully created automated tests for web-based user interfaces and SOAP web services despite no prior experience

Education

Education
Master's Degree in Telecommunications
State University of Information and Communication Technologies
1998 - 2003 (5 years)