Олена

Helen Masalova
QA Engineer
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Profile
Senior QA Engineer with extensive experience in manual testing across web, mobile, e-commerce, gaming, and
enterprise platforms. Strong experience in functional, regression, integration, API, end-to-end, exploratory, and
production testing, supported by a strong quality mindset and a systematic approach to ensuring product quality.

Experienced throughout the full QA lifecycle, from business and technical requirements analysis and test
coverage design to test execution, defect reporting, release validation, and production testing. Strong
background in creating QA documentation from scratch, including test coverage, checklists, test cases, and other
QA artifacts, as well as maintaining and continuously improving them throughout the project lifecycle.

Experienced in direct communication with clients, clarifying requirements, addressing questions, and translating
client requests into clear and testable requirements. Skilled in API testing, backend data validation, third-party
integrations, and root cause analysis, with a strong focus on identifying risks and delivering reliable software.

Highly adaptable and self-directed, with a proven ability to quickly learn new technologies and independently
acquire the knowledge required to solve unfamiliar tasks. Strong ownership and problem-solving skills, with the
ability to deliver reliable results within defined deadlines, including tasks involving technologies and areas with
no prior hands-on experience.

Technical Skills
• Testing Types: Manual Testing, Functional Testing, Regression Testing, Integration Testing, API Testing,
End-to-End Testing, Exploratory Testing, Smoke Testing, Sanity Testing, Production Testing, Third-Party
Integration Testing
• Test Design Techniques: Equivalence Partitioning, Boundary Value Analysis, Decision Table Testing, State
Transition Testing, Error Guessing
• Languages: Python, SQL
• AI: Claude Code, ChatGPT
• Tools & Technologies: Postman, Swagger, Mock Server, Chrome DevTools, Google Analytics, Selenium,
Beautiful Soup, Azure Application Insights
• Databases & Cloud: Azure Cosmos DB (NoSQL), Azure SQL, PostgreSQL
• Platforms / Domain: Vehicle Repossession Platforms, Magento (Adobe Commerce) & E-commerce, Mobile
Games, Music & Creative Software, Online Stores

Education Courses & Certifications
Master’s Degree in Information and Control Systems Software Testing — Credential ID 365-2016
and Technologies HTML and CSS — Credential ID WM-19-2017.194
Volodymyr Dahl East Ukrainian National University Data Analyst — Credential ID 28973
(2005 – 2010)
Introduction to Agent Skills — Certificate of Completion
Bachelor’s Degree in Programming for PC & AS
College of Volodymyr Dahl East Ukrainian National
University (2001 – 2005)

Project History

TechFabric — QA Engineer Mar 2025 – Aug 2026 (1 year 6 months)
Project: Vehicle Repossession Platform

Tasks Executed:
• Performed manual testing of web applications, including functional, regression, integration, API, and
end-to-end testing.
• Analyzed business and technical requirements and acceptance criteria to identify gaps, inconsistencies, and
potential issues before testing.
• Communicated directly with clients to clarify ambiguous or inconsistent requirements and ensure a clear
understanding of expected functionality.
• Analyzed development tasks and defined appropriate test coverage based on requirements and acceptance
criteria.
• Created new test cases and maintained existing QA documentation throughout the project lifecycle.
• Provided testing effort estimations for development tasks.
• Conducted regression and integration testing, including third-party integrations, to ensure system stability
and data consistency.
• Performed API testing using Postman, Swagger, and Mock Server, validating request/response behavior,
business logic, and error handling.
• Validated backend data using Azure SQL Database and Cosmos DB.
• Performed production testing and post-release validation to verify implemented functionality and identify
potential issues after deployment.
• Investigated defects, analyzed root causes, and collaborated with development teams to support timely
resolution.

Skills / Tools: Web Testing, API Testing (Postman, Swagger, Mock Server), Azure SQL DB, Azure Cosmos DB
(NoSQL), Azure Application Insights, Chrome DevTools, Claude Code

HGreg.com — QA Engineer Oct 2023 – Present

Tasks Executed:
• Performed manual testing of web applications with a strong focus on exploratory testing, identifying
unexpected scenarios, edge cases, and potential defects.
• Created and maintained testing checklists to ensure consistent coverage of key functionality and business
scenarios.
• Performed functional, regression, integration, UI/UX, cross-browser, cross-device, and compatibility testing.
• Conducted multilingual testing to validate functionality, content, localization, and user experience across
supported languages.
• Tested application behavior across different browsers, devices, screen sizes, and environments.
• Developed Python scripts to support testing of specific tasks and validate functionality, data, and expected
results.
• Used Chrome DevTools, logs, and backend data to investigate issues and support defect analysis.
• Collaborated closely with the development team to report, clarify, reproduce, and verify defects.

Skills / Tools: Web / Mobile Testing, Postman API, Python, Beautiful Soup, Selenium, Web Scraping, Google
Analytics

CodeAstrum — QA Engineer Dec 2023 – Feb 2025 (1 year 3 month)

Tasks Executed:
• Performed testing and maintenance of e-commerce websites based on Magento, covering both Front-End
and Admin/Backend functionality.
• Performed Magento Front-End testing, including UI, UX, functional, and cross-browser testing.
• Tested Magento Admin functionality, including backend logic, product configuration, settings, logs, requests,
and related system behavior.
• Created and configured products in Magento to support testing of different business scenarios and
configurations.
• Tested payment systems and payment processing flows, including integration with Magento and validation of
different payment scenarios.
• Created and maintained QA documentation from scratch, including test coverage, checklists, test cases, and
other testing artifacts.
• Participated in release validation and supported the QA team throughout the release process.
• Contributed to organizing QA activities and coordinating testing tasks within the team.
• Independently explored test automation by creating a Python-based project for website testing as a personal
initiative, including structuring the project and implementing approaches to handle authentication and other
technical challenges.

Skills / Tools: Magento, Web / Mobile Testing, API Testing (Postman, REST, GraphQL), SQL, Chrome DevTools,
Python, DBeaver, PyCharm, YouTrack, Miro

Tremex Games — Senior QA Engineer Dec 2021 – Nov 2023 (2 year)

Tasks Executed:
• Led QA activities for mobile cooking game projects across iOS and Android platforms.
• Created QA documentation from scratch, including test coverage, checklists, test cases, and detailed bug
reports.
• Designed test coverage for game functionality and specific gameplay mechanics, ensuring key user flows and
scenarios were covered.
• Reviewed, analyzed, and clarified requirements in collaboration with Product Managers and developers.
• Performed functional, regression, UI/UX, acceptance, smoke, compatibility, and exploratory testing.
• Participated in release planning and coordinated QA activities throughout the release cycle.
• Monitored and controlled sprint testing tasks, priorities, and progress to ensure timely QA completion.
• Worked closely with developers and Product Managers to investigate, reproduce, and verify defects.

Skills / Tools: Mobile Game Testing, QA Documentation, Monday, Confluence, Miro, BrowserStack

Hunters Consult — Lead QA Engineer Jul 2018 – May 2019 (11 months)
Position growth: Middle QA Engineer → Lead QA Engineer

Tasks Executed:
• Led end-to-end QA activities for Magento-based e-commerce platforms, covering Frontend, Admin Panel,
backend integrations, microservices, and payment systems.
• Performed deep technical investigation of application behavior using terminal tools, logs, request data, and
backend system information.
• Validated and troubleshot production issues with access to application logs and backend data, including
performing controlled database updates using SQL through the console.

• Tested payment systems and payment processing flows, including integration with Magento and validation of
different payment scenarios.
• Managed and validated store content and product data, including updating product information and verifying
changes across the system.
• Defined and executed QA coverage across functional, regression, integration, cross-browser, acceptance,
smoke, and exploratory testing.
• Conducted Magento Frontend and Admin Panel testing, including UI/UX, configurations, logs, requests,
backend integrations, and microservices.
• Controlled the release process and validated release readiness, ensuring required quality checks were
completed before production deployment.
• Acted as a key point of contact for customers, clarifying requirements, answering product-related questions,
and providing quality-related guidance.
• Created user-facing documentation, tutorials, and instructional videos to help customers work with the
system and reduce support needs.
• Distributed QA tasks among team members and supported onboarding and training of new QA engineers.
• Managed multiple projects concurrently while maintaining consistent QA standards and supporting stable
releases.

Skills / Tools: Magento, Microservices Testing, Web / Mobile Testing, Postman API, SQL, JSON, XML, Functional /
Regression / Integration / UI / UX Testing, Confluence, Camtasia Studio, DevTools, Trello, Technical Support

Noobless — Lead QA Engineer Sep 2017 – Jul 2018 (11 months)
Position growth: Middle QA Engineer → Lead QA Engineer

Tasks Executed:
• Led manual and automated testing activities across multiple web projects.
• Distributed QA tasks among team members, monitored testing progress, and supported timely completion of
QA activities.
• Trained and supported new QA engineers during onboarding and throughout their initial project work.
• Designed test coverage as the foundation for testing activities and created and maintained QA
documentation, including checklists, test cases, and other testing artifacts.
• Performed functional, regression, UI/UX, cross-browser, compatibility, smoke, and exploratory testing.
• Worked with an existing Python/Selenium automation framework, adapting and extending its structure to
meet project-specific requirements.
• Independently learned Python within the scope of assigned automation tasks and applied newly acquired
knowledge directly to the project.
• Applied OOP principles when adapting and extending the automation solution, delivering working and
maintainable test code within the required deadlines.
• Ensured consistent testing quality across different environments using BrowserStack.

Skills / Tools: Web / Mobile / Automation Testing, Trello, DevTools, BrowserStack, HTML, CSS, Python, Google
Sheets

Maestro Music Software — Middle QA Engineer Sep 2016 – Aug 2017 (1 year)
Position growth: Junior QA Engineer → Middle QA Engineer

Tasks Executed:
• Performed manual testing of desktop music software, covering functional, UI, usability, compatibility,
security, localization, and positive/negative testing scenarios.
• Tested software across multiple supported languages, validating localization, interface behavior, and correct
content display.

• Verified correct audio playback, sound rendering, and display of musical content across different scenarios.
• Created and used test scores to validate music notation, audio behavior, and application functionality.
• Provided technical support to customers across Europe and North America, handling inquiries in multiple
languages and providing clear responses in English.
• Analyzed customer-reported issues, reproduced reported problems, and communicated findings to support
and development teams.
• Created user-facing documentation and training materials, including instructional and presentation videos.

Skills / Tools: Software Testing, Camtasia Studio, Localization Testing, Customer Support, Google Sheets

Crystal Clear Soft (Bear Games) — ActionScript Developer Jul 2013 – Dec 2016 (3 years 6 months)

Tasks Executed:
• Developed social network games, focusing on Match-3 game mechanics, client-side functionality, and user
interface.
• Worked with map-based game mechanics and game state logic.
• Worked with database interactions and analyzed application requests and responses.
• Performed developer-level testing and white-box testing to verify application logic, data processing, and
expected behavior.
• Investigated and debugged issues at the code and data level during development.

Skills / Tools: ActionScript, JIRA, Git, JSON, Adobe Flash