Тетяна

Tetiana Hrebeniuk
Software QA Engineer
[open contact info](look above in the "contact info" section) [open contact info](look above in the "contact info" section) Kyiv, Ukraine
[open contact info](look above in the "contact info" section)

PROFESSIONAL SUMMARY
Software QA Engineer experienced in driving end-to-end quality and release reliability across
dynamic, data-intensive platforms. Proven expertise in Shift-Left defect prevention, cross-system
integration validation, and backend data integrity. Skilled in streamlining complex regression
suites, standardizing QA best practices, and partnering with cross-functional stakeholders to
mitigate delivery risks in fast-paced environments.

SKILLS & PROFICIENCIES
Testing Types & Expertise API & Technical Debugging
Functional, Regression, E2E, Integration, Web REST APIs, Postman/Bruno, Charles Proxy,
& Mobile, Cross-Browser, Shift-Left QA, Risk- Fiddler, WebSockets, Kibana (Log Analysis).
Based Testing.
QA Strategy & Processes
Databases Test Strategy & Planning, Risk-Based Testing,
SQL (Data Validation, Queries), NoSQL Shift-Left QA (Requirements Analysis), Quality
(MongoDB). Gates, Defect Triage & Root Cause Analysis.

Tools & Test Management Version Control & CI/CD
Jira, TestRail, Confluence, Zephyr. Git, GitHub, Bitbucket, Jenkins, Docker.

Automation & Programming Methodologies & Collaboration
Playwright (TypeScript), Java (Fundamentals), Agile, Scrum, Kanban, Mentoring & Onboarding,
Cucumber. Cross-Functional Collaboration, Stakeholder
Demos.
AI Tools
ChatGPT, Prompt Engineering (Test Design,
Edge Cases, Synthetic Data Generation).

WORK EXPERIENCE
QA Engineer 03/2021 – Present
PLAYTECH UA Kyiv
Led QA activities for dynamic Web and Mobile applications, coordinating
•

end-to-end testing across release cycles.
Maintained and updated a 500+ test case regression suite: deprecated
•

obsolete checks and restructured legacy tests into efficient E2E flows to
cut regression time.
Supported UI tests with Playwright: reviewed CI test runs, investigated
•

failure logs to isolate issues, and updated test assertions.
Validated REST APIs, WebSocket events, and backend data flows using
•

Postman, Swagger, and server log analysis.
Executed cross-browser and cross-device testing across desktop and
•

mobile to ensure consistent functionality and layout.
Logged well-documented bugs with reproduction steps, network
•

requests, and relevant logs to help developers resolve issues quickly.
Drove Shift-Left defect prevention by identifying functional gaps and
•

integration edge-cases during grooming with Product Owners and
Developers.
Used AI tools to speed up drafting test scenarios, boundary value checks,
•

and test data generation.
Mentored QA team members, maintained test documentation, and
•

conducted release demos for key stakeholders, Product Owners, and
department leads.

QA Engineer 01/2020 – 03/2021
SBTECH (DraftKings) UA Kyiv
Owned end-to-end testing for core Web and Mobile platform
•

functionality, covering user onboarding, multi-step KYC verification, and
account management features.
Tested REST APIs for third-party integrations and internal microservices
•

using Postman, inspecting JSON payloads, error handling, and HTTP
status codes.
Audited backend data integrity using SQL, ensuring statuses,
•

transactions, and account updates were accurately recorded in the
database.
Collaborated on BDD test automation, converting manual functional
•

scenarios into Cucumber-based automated tests, expanding automated
regression coverage to ~50% of the tested scope.
Investigated production incidents and high-priority defects, conducting
•

root cause analysis, and collaborating with Developers and Product
Owners to ensure stable releases.
QA Engineer 08/2018 – 01/2020
SKYWIND GROUP UA Kyiv
Executed functional, regression, and smoke testing for Web and Mobile
•

applications within a Kanban framework.
Ran and maintained manual and automated regression scenarios,
•

ensuring test efficiency and stable delivery cycles.
QC Engineer 08/2017 – 08/2018
Linkos Group UA Kyiv
•Executed functional, UI, and regression testing for client-server and
desktop software, ensuring stability across production releases.
•Authored detailed test documentation (test cases, checklists, bug
reports) and collaborated with developers to accelerate defect
verification.

EDUCATION
Specialist 2014 – 2015
Academy of Labor, Social Relations and Tourism Kyiv
Specialty Management and administration.
Bachelor 2010 – 2014
ITFPU Kyiv
Department of tourism management. Specialty Tourism manager.

LANGUAGES
English Ukrainian
B2 / Upper-Intermediate Native