Катерина

Kateryna Kasianenko [open contact info](look above in the "contact info" section)
[open contact info](look above in the "contact info" section)
Middle QA Engineer

OVERVIEW
QA Engineer with almost 3 years of commercial experience in manual testing
of web and mobile applications (iOS, Android). Experienced in functional,
regression, smoke, exploratory, usability, cross-browser and role-based
testing, API testing (Postman) and payment flows (Stripe, Apple Pay, Google
Pay). Strong knowledge of testing theory, SDLC/STLC and test design
techniques. Skilled in writing and maintaining test cases, checklists, test plans
and bug reports, and in working with developers, designers and product
owners in Agile/Scrum and Kanban teams. Took ownership of
regression/smoke cycles and QA sign-off for a MENA social media platform.
Use AI tools to speed up test case design, bug analysis and documentation.

SKILLS
Testing: functional, regression, smoke, exploratory, usability, compatibility
(cross-browser/device), role-based, integration and API testing, payment and
billing flows, release and pre-release testing; test design techniques
(equivalence partitioning, boundary value analysis, decision tables);
SDLC/STLC.

Documentation: test cases, checklists, test plans, test suites, bug reports, test
results.

AI in QA: Claude Code — generating test cases and edge cases from
requirements, creating test data, analyzing logs, drafting bug reports and test
documentation (all reviewed manually)

Tools/Technologies: Jira, Linear, Confluence, Qase, TestRail, Postman, MySQL
(SQL queries), Chrome DevTools, Fiddler, BrowserStack, TestFlight, Datadog,
Sentry, LaunchDarkly, GitHub, Figma, Loom, Slack, Google Sheets, Excel, MS
Office, SharePoint, Stripe, Terminal.

Methodologies: Agile, Scrum, Kanban.

Languages: English – Upper-Intermediate (C1), Ukrainian – Native, Russian -
Native.

COURSES & CERTIFICATIONS
● EF SET English Certificate — 2024
● Soft Skills for IT — Genius Space, 2025
● AI Specialist — Genius Space, 2025
● Insurance Fundamentals for Engineers — Radity, 2026

EXPERIENCE
Mobile Products Company– Manual QA

02/2025 – NOW
Worked on multiple mobile applications, progressing from testing gaming
products to taking ownership of QA processes and release activities for a
large-scale social media platform targeting the MENA region.

Projects:

Social Media Platform (Mabrook)

Activities:
- performed manual functional, regression, smoke, exploratory and usability
testing of iOS and Android social media mobile application across different
devices and OS versions (TikTok/Instagram-like platform targeting MENA
region);
- took ownership of regression and smoke testing cycles, ensuring stability of
core functionality before releases;
- provided QA sign-off in release planning and pre-release testing based on
test results and critical bug assessment;
- used TestFlight for iOS testing and release validation; tested Unity-based
game functionality;
- tested payment flows, including Stripe, Apple Pay, and Google Pay;
- created and maintained test cases in Qase, ensuring structured coverage of
key features and user flows;
- conducted device and browser coverage analysis using BrowserStack,
including independent research of required devices and OS versions to
ensure optimal test coverage;
- acted as a QA point of contact between QA team and other cross-functional
teams, facilitating communication and clarifying requirements;
- participated in release planning and pre-release testing,
providing QA sign-off based on test results and critical bug assessment;
- reported and prioritized defects in Jira, communicating severity and business
impact;

- worked in an Agile/Kanban environment with continuous task flow and close
collaboration with development and product teams;
- used AI tools to generate test cases / analyze bugs / prepare documentation;
- acted as QA point of contact between the QA team and cross-functional
teams, clarifying requirements.

Gaming Platform (GemuPlay)

Activities:
- performed manual functional, exploratory, usability, smoke and regression
testing of multiple mobile applications on iOS and Android platforms;
- executed test scenarios across different devices and OS versions to ensure
consistent user experience and detect platform-specific issues;
- reported, tracked, and verified defects in Jira, providing clear reproduction
steps, logs, and screenshots;
- collaborated with developers, designers and QA team members to clarify
requirements, reproduce issues, and verify fixes;
- participated in pre-release testing and contributed to improving overall
product stability and user experience.

Business Insurance Company (NDA) – Manual QA
06/2024 – 02/2025
Activities:
- performed manual and role-based functional testing of web applications for
a business insurance platform, validating functionality, user permissions, and
behavior across different roles;
- maintained structured test documentation in SharePoint, creating
feature-based test cases, results, and clarifications to ensure transparent and
up-to-date testing history for the team;
- tested payment, billing flows (Stripe);
- actively worked with Linear to create, track, and manage bugs, tasks, and
feature-related tickets, collaborating with developers and product teams
through issue discussions;
- reviewed GitHub pull requests and deployments to verify bug fixes,
understand implementation changes, and ensure proper issue resolution;
- created and maintained Datadog Browser Tests to monitor application
availability and core functionality in production;
- used Sentry to analyze errors, investigate exceptions, and enrich bug reports
with logs and technical details;
- utilized LaunchDarkly feature flags to test different application
configurations by enabling/disabling features;

- participated in Socotra platform migration testing, validating data
consistency and system behavior across environments during transition
phases;
- worked an an Agile/Scrum environment with regular sprint planning and
release cycles;
- performed REST API testing using Postman, validating requests, responses
and status code;
- used Chrome DevTools to analyze network activity and console logs.

Freelance QA
01/2024 – 06/2024

Activities:

- tested web and mobile projects (functional, regression, smoke, exploratory);
wrote test cases, test plans and bug reports;
- Practiced API testing with Postman.

QA Foundation (Self-driven Learning & Practice)
Activities:
- built strong practical foundation in Quality Assurance through structured
self-study and hands-on practice aligned with real project experience;
- gained understanding of QA processes including functional, regression,
smoke, and exploratory testing;
- practiced API testing using Postman, validating requests, responses, and
basic backend behavior;
- developed and maintained test documentation such as test cases, test plans,
and bug reports based on real testing scenarios;
- simulated bug reporting and issue tracking workflows using
industry-standard tools and approaches;
- reinforced testing knowledge through application on freelance and
commercial QA projects.

EDUCATION
Kharkiv National Pedagogical University named after H.S. Skovoroda

Bachelor’s Degree in English Philology
2022 – 2026
Graduated with Honors.

Bachelor’s Degree in Physical Education and Sports
2022 – 2026