Denys

DENYS PETRENKO
QA Engineer

CONTACTS PROFESSIONAL SUMMARY
[open contact info](look above in the "contact info" section) Detail-oriented Junior QA Engineer with a solid background in testing FinTech web applications
[open contact info](look above in the "contact info" section) and mobile platforms. Experienced in validating complex business logic, performing REST API
[open contact info](look above in the "contact info" section) testing, and managing databases with MySQL. Proven track record of identifying critical defects,
analyzing logs via Graylog, and collaborating with cross-functional teams in Kanban environments.

EDUCATION Passionate about software quality, process optimization, and continuous professional growth

Bachelor’s Degree in Mining Engineering
Mechanics
EXPERIENCE
Kryvyi Rih National University | Ukraine March 2025 - Present
2008 - 2013 Aventus IT

TECHNICAL SKILLS Junior QA Engineer
Functional & Domain Testing: Performed end-to-end testing of complex business logic
Manual Testing: Functional, Smoke,
in the microfinance sector (interest rate calculations, repayment schedules, loan
Exploratory, Regression, GUI, Cross Browser
issuance).
API Testing: Postman, Swagger, REST API
Requirements Analysis: Analyzed business requirements and use cases to design
Tools: Fiddler, Jenkins, Cypress, JMeter,
detailed test plans and test suites in Jira + Xray, ensuring full requirements traceability.
Playwright, Chrome DevTools, Android
API Testing (Postman): Validated backend logic, verified status codes and JSON
Studio, DBeaver, Graylog
structures, and executed negative test scenarios. Experienced with token-based
Project Management: JIRA, Confluence,
authorization.
Xray
Database Management (MySQL / DBeaver): Executed SQL queries to verify data
Web Technologies: HTML, CSS, JavaScript,
integrity and track status changes for clients and loan applications.
XML, JSON
Compatibility Testing: Responsible for compatibility and UI testing across various
Version Control: GIT, Gitlab
mobile devices and platforms to ensure stable Web-view performance.
Databases: MySQL
Log Analysis & Debugging: Leveraged Graylog to identify server-side errors and used
Browser DevTools to analyze network requests, responses, and headers.
SOFT SKILLS Testing Types: Executed functional, smoke, and regression testing for every production
Teamwork release to ensure high software quality.
Flexibility, ability to work under time pressure Agile Processes: Worked in a Kanban environment, participating in daily stand-ups and
Capacity to maintain full focus for a long time backlog grooming (estimation) with BAs, developers, and stakeholders.
Ability to learn quickly

September 2024 - February 2025 (Practice)
LANGUAGE
Custom Games Studio | Aquapulco Resort Empire (mobile)
English: Pre-intermediate
Junior QA Engineer
Polish: Upper Intermediate
Performing manual functional, exploratory, and regression testing of mobile applications.
Ukrainian: Native
Utilizing Android Studio to capture game logs and analyze application performance.
Russian: Native
Identifying bugs and defects, creating detailed bug reports in Google Docs, and
organizing them into a shared table (Jira equivalent).
Preparing testing reports for the current version of the application and sharing them with
the development team.
Participating in requirements analysis, test design, and optimization of the testing
process.

ADDITIONAL EDUCATION
QA Manual Course | Hillel IT School, 2023
Intensive program covering STLC, test design techniques, API testing (Postman), SQL
basics, and Agile methodologies.

Cypress | UDEMY, 2024
Comprehensive introduction to test automation including BDD Cucumber, XHR mocking,
session management, and DB integration.

Jmeter | UDEMY, 2024
Performance metrics analysis, advanced thread groups for real-time load, and Non-GUI
mode testing.