Andrii is available for hire

Andrii Hembar

Verified Expert in Engineering

Quality Assurance Developer

Coimbra, Portugal

Toptal member since March 23, 2022

Expertise

Quality Assurance Engineering API Test Engineering Test Automation Automation GitHub Selenium REST API Java Cucumber MacOS SQL Linux

Bio

Andrii has over 10 years of experience in automation testing, including web, mobile, desktop, embedded, and database services. Skilled in different technologies, programming languages, and frameworks, he has experience setting up testing from scratch, estimating, leading, and mentoring small teams of test engineers. As an engineer, Andrii is passionate about learning new technologies and using them to get the best results towards product quality.

Portfolio

WhyHowAi

Quality Assurance (QA), Python 3, Amazon Web Services (AWS), MongoDB...

TheoremOne

Prisma, TypeScript, Azure DevOps, IT Consulting, Test Scripting, C#, GitHub

Hype Labs Inc.

Quality Assurance (QA), Manual QA, Test Planning, Functional Testing...

Experience

Automated Testing - 10 years
Software Testing - 10 years
Selenium - 5 years
Appium - 4 years
Java - 4 years
Python - 4 years
SQL - 4 years
JavaScript - 3 years

Availability

Part-time

Preferred Environment

MacOS, Python 3, CircleCI, TypeScript, Pytest, Playwright

The most amazing...

...thing I’ve accomplished was building a test automation framework for a client that cut regression testing from a week to hours, transforming QA efficiency.

Work Experience

AI Infrastructure Startup QA Tester

2024 - PRESENT

WhyHowAi

Developed unit tests for an AI infrastructure project and its kernel using Python 3, unittest.mock, and monkeypatch, ensuring accurate functionality and improving code reliability.
Designed the architecture and developed integration tests for the back end using Python 3, Pytest framework, and MongoDB, ensuring robust data handling and reliable system performance.
Performed comprehensive manual testing of AI tools, RAG pipelines, AWS infrastructure, MongoDB databases, and third-party integrations to ensure functionality, reliability, and seamless system performance.
Implemented static code analysis tools to ensure code quality and security, including Black for formatting, Flake8 for linting, Bandit for security checks, and Isort for import optimization, enforced on every pull request.

Technologies: Quality Assurance (QA), Python 3, Amazon Web Services (AWS), MongoDB, Amazon CloudWatch, Pytest, REST APIs, Unit Testing, Leading Quality Assurance (LQA), Quality Management, GitHub Actions, React, Static Analysis

QA Engineer Consultant

2023 - 2023

TheoremOne

Spearheaded the architecture and development of a data-seeding framework utilizing TypeScript and Prisma object-relational mapping (ORM).
Pioneered the implementation of quality engineering best practices throughout the project, ensuring high-quality deliverables.
Analyzed and improved Azure DevOps CI/CD pipelines for optimized software delivery.
Conducted gap analysis and enhanced integration testing for a prominent enterprise client.

Technologies: Prisma, TypeScript, Azure DevOps, IT Consulting, Test Scripting, C#, GitHub

Manual QA Analyst

2023 - 2023

Hype Labs Inc.

Wrote test plans for the blockchain web and mobile applications.
Performed testing of the UI, back end, designs, and requirements.
Wrote the back-end testing from scratch using Python.

Technologies: Quality Assurance (QA), Manual QA, Test Planning, Functional Testing, Regression Testing, Blockchain, Quality Management

Senior Lead AQA Engineer

2020 - 2022

Tictrac

Reduced the time spent on regression from one week to three hours without losing product quality.
Designed and developed a scalable mobile test automation project from scratch using Java, BrowserStack, Appium, and CircleCI.
Conceptualized and built a scalable web test automation project using Python, PyTest, Selenium, and CircleCI.
Mentored three test engineers in test automation, pull request review, and work planning.
Integrated Jira and TestRail logging into the regression automated suite.
Integrated Applitools UI test framework to the mobile and web testing projects that allowed finding even pixel displacement UI bugs.
Performed quarterly and yearly test automation planning for web, mobile, and REST API test projects.
Wrote Playwright E2E UI and API tests for a web project using TypeScript.
Wrote Cypress E2E UI and API tests for a web project using TypeScript.

Technologies: Python, Applitools, Pytest, CircleCI, Appium, Selenium, Bash Script, Cucumber, BrowserStack, TestRail, Jira, Jira REST API, GUI Testing, Automated UI Testing, Mobile App Testing, Bug Discovery & Tracking, Test Automation, Test Planning, API Testing, Postman, Regression Testing, E2E Testing, Visual Studio Code (VS Code), QA Automation, REST API Automation, Software Testing, Automated Testing, Leadership, QA Leadership, Integration Testing, Mobile Device QA Automation, Git, CI/CD Pipelines, Docker, Test Automation Frameworks, Gherkin, Website QA, QA Testing, Mobile, UI Testing, Mobile UI, Cypress, Test Scripting, Automation, GitHub, Leading Quality Assurance (LQA), Quality Management, React, Playwright

Senior AQA Engineer

2019 - 2020

Yuvoh Analytics

Designed and developed an end-to-end test project using Node.js, Protractor, Frisby2, and Mocha.
Crafted and built an integration tests project using Node.js, Mocha, Chai, and PostgreSQL.
Configured continuous testing pipelines using GitLab.
Created scheduled crawling data jobs using Python, Airflow, and PostgreSQL.
Performed manual acceptance testing of a responsive website.

Technologies: Python 3, Web Scraping, GitLab CI/CD, Google Cloud Console, Web App Testing, Jira, Bash Script, GUI Testing, Automated UI Testing, Mobile App Testing, Bug Discovery & Tracking, Test Automation, Test Planning, API Testing, Postman, Regression Testing, E2E Testing, Visual Studio Code (VS Code), QA Automation, REST API Automation, Software Testing, Automated Testing, Ubuntu Linux, Quality Assurance (QA), Integration Testing, Manual QA, Git, CI/CD Pipelines, Docker, Test Automation Frameworks, Cucumber, Gherkin, Website QA, QA Testing, UI Testing, Mobile UI, Automation, GitHub, React

Test Engineer

2017 - 2019

Medtronic

Designed, validated, and automated tests using Java and Appium for mobile applications controlling insulin pumps, ensuring reliability for Medtronic’s medical devices.
Performed both manual and automated testing of the wireless protocol Bluetooth Low Energy.
Handled requirement analysis, software verification, defects tracking and validation, and pull request reviews.
Conducted manual testing of a mobile application that handles insulin delivery to patients via an insulin pump.

Technologies: JavaScript, Appium, Embedded Systems, Bluetooth Low Energy (LE), Technical Requirements, Validation, Android, iOS, GUI Testing, Automated UI Testing, Mobile App Testing, Bug Discovery & Tracking, Test Automation, Test Planning, Regression Testing, E2E Testing, QA Automation, Software Testing, Automated Testing, Ubuntu Linux, Manual Testing, Quality Assurance (QA), Manual QA, Mobile Device QA Automation, Leadership, Gherkin, QA Testing, Mobile, UI Testing, Mobile UI, Automation

Middle Test Engineer

2015 - 2017

Aristotle Circle

Built the test web test automation from scratch for an education payment website using Java, Selenide, and TestNg.
Created integration tests for an education payment system back-end using TypeScript, Frisby, RESTler, and NodeSQL.
Trained and led a four people team of QA manual engineers in test automation.
Performed regression, acceptance, design, and mobile testing for iOS and wrote tests cases and checklists using TestRail.

Technologies: Java, Selenide, Gradle, TestNG, TypeScript, Jasmine, Protractor, TestRail, Jira, Bash Script, Bug Discovery & Tracking, Test Automation, Test Planning, API Testing, Postman, Regression Testing, E2E Testing, Mocha, Chai, Visual Studio Code (VS Code), QA Automation, REST API Automation, Software Testing, Automated Testing, Ubuntu Linux, QA Testing, Quality Assurance (QA), Integration Testing, Manual QA, Mobile Device QA Automation, Git, CI/CD Pipelines, Docker, QA Leadership, Test Automation Frameworks, Cucumber, MySQL, Website QA, Mobile, UI Testing, Mobile UI, Automation, Puppeteer, GitHub

Junior Test Automation Engineer

2014 - 2015

SoftServe

Developed data-driven integration tests using C#, LINQ, MSTest, and Entity frameworks for a healthcare project.
Built end-to-end desktop tests using C#, LINQ, and CodedUI frameworks.
Performed regression, acceptance, and manual web and desktop testing and wrote tests cases.
Debugged a REST API by testing data consistency from a Microsoft SQL database using Visual Studio Code and Fiddler.

Technologies: C#, LINQ, MSTest, Coded UI Tests, Entity Framework, SQL, Jira, Bug Discovery & Tracking, Test Automation, API Testing, Postman, Regression Testing, QA Automation, REST API Automation, Software Testing, Automated Testing, Manual Testing, Quality Assurance (QA), MySQL, QA Testing

Experience

Python Web Selenium End-to-end Test Project

https://github.com/Haisenberh/Python-Selenium-Web-Test-Portfolio-Project

This is a Python-based automation portfolio project that is developed to test the Web UI part using the Pytest-BDD framework with the latest Selenium web driver. The page object and singleton design patterns are used to minimize test code and maximize the flexibility of usage. Tests can be run as a continuous integration tool in a Docker container or locally using CircleCI. After tests are executed, the beautiful report is generated using the Pytest-HTML framework.

Global Health and Wellness Platform

During this project, I've done a whole specter of quality assurance (QA) activities that included:
• investigating current testing needs and problems
• test automation planning
• designing and developing software for automating tests
• reducing amount spend on manual regression
• bug detection, validating and logging
• leading and managing a small team of QA engineers

Python API Test Project

https://github.com/Haisenberh/Portfolio-Python-API-Testing-Project

This is a Python-based test automation project that is developed to test the REST API back end using the Pytest framework. Also, this project is running as a continuous integration tool using CircleCI. After tests are executed, the beautiful report is generated using the Pytest-HTML framework.

Education

2011 - 2015

Bachelor's Degree in Computer Science

Lviv Polytechnic National University - Lviv, Ukraine

Certifications

JANUARY 2022 - PRESENT

SQL Certificate [hackerrank.com/certificates/892d853f7051]

HackerRank

JANUARY 2022 - PRESENT

Rest API Certificate [hackerrank.com/certificates/277e0e0ec7bf]

HackerRank

JANUARY 2022 - PRESENT

Python Certificate [hackerrank.com/certificates/8aa557db0f50]

HackerRank

APRIL 2014 - PRESENT

Quality Assurance and Testing of Modern Software Systems

SoftServe

Skills

Libraries/APIs

REST APIs, React, LINQ, Entity Framework, Jira REST API, Chai, Puppeteer, Playwright

Tools

Cucumber, TestRail, GitHub, Pytest, Postman, PyCharm, CircleCI, BrowserStack, GitLab CI/CD, Google Cloud Console, Gradle, MSTest, Jira, Mocha, Git, Prisma, Amazon CloudWatch

Languages

Java, SQL, Gherkin, Python, JavaScript, Bash Script, TypeScript, C#, Python 3

Frameworks

Appium, Selenium, Selenide, TestNG, Jasmine, Protractor, Cypress

Paradigms

Software Testing, Automated Testing, Test Automation, E2E Testing, Automation, Manual Testing, Object-oriented Programming (OOP), Coded UI Tests, Functional Testing, Azure DevOps, Unit Testing

Platforms

MacOS, Mobile, iOS, Android, Ubuntu Linux, Bluetooth Low Energy (LE), Docker, Visual Studio Code (VS Code), Blockchain, Amazon Web Services (AWS)

Storage

MySQL, MongoDB

Other

Web App Testing, Selenium Page Object, Mobile App Testing, Bug Discovery & Tracking, Automated UI Testing, GUI Testing, Test Planning, API Testing, Regression Testing, QA Automation, REST API Automation, QA Testing, Integration Testing, Manual QA, Mobile Device QA Automation, Test Automation Frameworks, UI Testing, Mobile UI, Test Scripting, Quality Assurance (QA), CI/CD Pipelines, Website QA, Leading Quality Assurance (LQA), Quality Management, GitHub Actions, Applitools, Computer Science, Networks, Discrete Mathematics, Web Scraping, Embedded Systems, Technical Requirements, Validation, Leadership, QA Leadership, IT Consulting, Knowledge Graphs, Static Analysis

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