Денис

Denys Tkachyk
Software Development Engineer in Test
Executive Summary
• 4+ years of experience in software development, test automation, API testing, and
device-based quality assurance
• Strong experience with Python-based automation, API validation, Roku device
automation, manual and exploratory testing, Selenium, Behave, Jenkins, REST APIs,
Flask, MySQL, and PostgreSQL.
• Proficient with Git, Jenkins, Jira, Postman, Apidog, Docker, Figma, ClickUp, and
Worksection.
• Adept at validating web, mobile, API, and device behavior with clear defect isolation
and reporting.
• Proactive and detail-oriented, with strong analytical and problem-solving skills.

Technical Skills

Skill Category Skill List
Programming Languages Python, SQL
Technologies Python, Selenium, Behave, Docker, Flask, Requests, Roku
device automation
RDBMS MySQL, PostgerSQL
Web REST APIs, API development & automation, HTML
Operating Systems Linux, Windows
Development Tools IntelliJ IDEA, Jenkins, Git, Postman, Apidog, Docker, Jira,
Worksection, ClickUp, Figma
Verticals SDET, QA Automation, Device Testing, API Testing, Web
Development, Finance
Testing Python test automation, API automation, Roku device
automation, exploratory testing, UI testing, manual testing
(Android & iOS)

Foreign Language Skills

Language Written Spoken
English Upper-intermediate Upper-intermediate
Education
Institution: Vinnytsia National Technical University, Vinnytsya

Date(s) Attended: Sep 2014 – Jul 2018
Qualification(s): Bachelor’s in System Engineering

Institution: Vinnytsia National Technical University, Vinnytsya

Date(s) Attended: Sep 2018 – Dec 2019

Qualification(s): Master’s in Automation of Computer Integrated Technologies

Professional Experience
Company: Spilna Sprava
Duration: June 2020 – August 2021
Role: Python Developer
Project Name: Proton Project / Financial Data Analysis
Project description: Worked on backend development and financial data processing,
integrating market APIs and performing data analysis.

Responsibilities: API development with Flask, mathematical modeling and
calculations, database management (MySQL), web scraping for
financial market data, API integration with Interactive Brokers,
Yahoo Finance, IEX Trading, data processing and report generation
for financial forecasting

Technologies: Python, Flask, MySQL, Pandas, Requests, API integration

Company: Spilna Sprava
Duration: June 2021 – August 2024
Role: AQA Engineer
Project Name: Rosco Vision
Project description: Focused on UI and API test automation, ensuring quality control of
web application through various testing techniques.

Responsibilities: Test automation with Selenium and Behave, BDD testing and CI/CD
integration (Jenkins), API automated testing and documentation
updates (Postman, Apidog), report generating, bug reporting and
tracking using Jira.

Technologies: Python, Selenium, Behave, Jenkins, Postman, Jira

Company: Freelance (Part-time)
Duration: September 2024 – April 2025
Role: QA Engineer (Freelance, Part-time)
Project Name: Web & Mobile Testing
Project description: Provided freelance QA support for web and mobile products,
covering manual testing, exploratory testing, UI validation, API
checks, and clear defect reporting.

Responsibilities: Manual and exploratory testing for Android, iOS, and web
applications; API checks with Postman; test case creation and
execution; bug reporting and tracking using ClickUp and
Worksection; collaboration with designers via Figma.

Technologies: ClickUp, Worksection, Figma, Postman, Selenium, Android, iOS

Company: GlobalLogic
Duration: April 2025 - Present
Role: SDET
Project Name: Roku Platform / Device Automation
Project description: Focused on Roku device validation, Python-based automation, API
checks, and manual/exploratory testing to improve product quality
and regression confidence.

Responsibilities:
Developing and maintaining Python-based automation for Roku
device validation, automating API checks, performing manual and
exploratory testing on Roku devices, analyzing failures using logs
and reproducible scenarios, reporting defects clearly, and
collaborating with QA and engineering teams to improve automation
coverage and reliability.

Technologies: Python, API automation, Roku device automation, Git, Jira