Олеся

Olesya Kachalova
[відкрити контакти](див. вище в блоці «контактна інформація») · [відкрити контакти](див. вище в блоці «контактна інформація»)
Dnipro, Ukraine

MIDDLE MANUAL QA & AUTOMATION QA

Detail-oriented QA Engineer with 3+ years of experience in manual and automation testing of web and
mobile applications. Proficient in functional, regression, API, and integration testing. Skilled in creating and
maintaining automated tests using Playwright and Postman, and integrating them into CI/CD pipelines.
Adept at analyzing requirements, identifying edge cases, and collaborating with cross-functional teams to
ensure high-quality releases. Passionate about improving QA efficiency through automation and continuous
learning in modern testing practices.

TECH STACK

Manual Testing: Functional, Regression, Exploratory, UI/UX, Cross-browser, Mobile
Automation: Playwright (TypeScript), Postman, Altair GraphQL Client
Tools: Jira, TestRail, Git, Figma
Methodologies: Agile / Scrum
Languages: TypeScript/JavaScript, SQL (basic)

PROFESSIONAL EXPERIENCE
NDA (IGaming) Dec 2023 - Present
Middle Manual & Automation QA
Tested casino payment systems (web and mobile) focusing on functionality, UI/UX, performance, and
regulatory compliance.
Designed and executed test cases and exploratory sessions to validate payment flows,
deposit/withdrawal processes, and transaction accuracy.
Tested and automated GraphQL APIs for payment processing and user account management, ensuring
accurate data handling and schema stability.
Reported and tracked defects in Jira, collaborating with developers and designers to improve quality and
user experience.
Created and maintained Playwright automated tests (UI and GraphQL API), integrated into the CI/CD
pipeline, improving regression efficiency by 25%.
Participated in Agile ceremonies (daily stand-ups, sprint planning, retrospectives).
BrainRocket Jan 2023 - Nov 2023
Manual QA
Conducted manual testing of web and mobile applications across functional, regression, UI/UX, and
compatibility areas.
Analyzed product requirements to identify potential risks and ensure full test coverage.
Designed and executed detailed test cases and exploratory testing sessions for new features and critical
user flows.
Reported, tracked, and verified issues in Jira, maintaining clear communication with development teams.
Participated in sprint activities (planning, reviews, retrospectives) and contributed QA insights to improve
release quality.
Created and maintained test documentation, checklists, and release validation reports.
Collaborated with cross-functional teams to ensure smooth releases and continuous improvement of QA
processes.

Zeydoo Mar 2022 - Dec 2022
Junior Manual QA
Conducted manual testing of web and mobile apps covering functional, regression, and UI testing.
Created test documentation (test cases, checklists, bug reports).
Reported and tracked issues, verified fixes, and collaborated with dev teams.
Contributed to better test coverage and clearer documentation to support continuous releases.

EDUCATION & CERTIFICATIONS

SkillUp - Manual QA (2021)
QALight IT School - Mobile Testing (2022)