Kateryna Kulahina cover
Kateryna Kulahina
Kateryna Kulahina

Senior General QA Engineer

Open to offers · Member since 15 Oct 2026
Location
Dnipro, Ukraine
Desired salary
Confidential
Work preference
Remote Only / Full Time, Part Time, Contract, Freelance
Experience level
Senior

About

Professional summary

I am a Senior QA Engineer with more than 10 years of experience in manual testing, API testing, web and mobile testing, data validation, and quality assurance process setup. I have worked across fintech, e-commerce, media, cloud commerce, and live-streaming products.

I build risk-based test strategies and phased coverage plans that establish a reliable backend baseline through REST API and SQL validation before expanding to UI, integrations, and end-to-end flows. My core strengths include test planning, regression testing, exploratory testing, functional testing, integration testing, and test documentation.

I am experienced in testing REST APIs with Postman and Swagger/OpenAPI, validating complex financial data with SQL, and investigating defects through logs, traces, and monitoring tools. I work closely with product owners, developers, and stakeholders to identify testability gaps early in the development lifecycle.

I use Playwright and JavaScript for end-to-end test automation and use Claude Code as an AI-assisted tool for defect analysis, code-change review, and automation support. I critically validate AI-generated suggestions against business rules to ensure reliable scenarios, assertions, and selectors.

I have worked in Agile and Scrum teams with international clients and distributed teams in the USA, UK, and Netherlands. I also have experience mentoring QA colleagues, defining quality standards, participating in technical interviews, and supporting delivery of high-quality releases.

Notice period: Immediately

Skills

33 capabilities

Tech stack & tools

Working toolkit

Analytics

Application Hosting

Collaboration

Data Stores

Languages & Frameworks

Mobile

Experience

Career history

Senior QA Engineer Temy

I lead QA activities for web, mobile, backend, and integration modules for clients including Pax8, a global cloud commerce marketplace, and Dreamstage, a high-load live-streaming platform. I design and execute REST API test cases in Postman and Swagger, covering functional correctness, edge cases, authentication, error handling, and data integrity.

For Pax8, I improved regression efficiency by 20% through optimized test documentation and an API-first testing approach. I use Claude Code to identify potentially risky code changes and support Playwright end-to-end automation, while validating all AI output against business rules.

For Dreamstage, I tested web, mobile, Android TV, and iOS TV applications before high-traffic live events, including payment and subscription flows. I introduced daily log monitoring and analysis, reducing time-to-fix for production issues by 40%, and used Jenkins, Kibana, and Honeycomb to investigate CI/CD and microservice issues.

QA Engineer DataArt

I owned quality assurance for products in The Orchard's global music and media distribution ecosystem. I collaborated with product stakeholders to analyze, clarify, and refine business requirements.

I validated data integrity and financial data using complex SQL queries and planned risk-based regression testing for releases. I also coordinated cross-team integration testing with distributed teams in New York and London.

QA Engineer Sitecore

I performed end-to-end testing for complex modular systems. I analyzed requirements, clarified open questions with stakeholders, and ensured coverage of key product workflows.

I collaborated daily with international development teams to report issues, support release quality, and improve shared understanding of expected system behavior.

Maternity Leave Career break for childcare

I took a planned career break for childcare.

Following this period, I returned to my QA career and continued working in software quality assurance roles.

QA Engineer Daxx

I owned the QA process for Vakantieveilingen, an e-commerce auction platform, and tested both web and mobile versions of the product. I supported test execution across core user flows and release activities.

I mentored QA team members, defined the team's Definition of Done and quality standards, and communicated directly with international stakeholders.

QA Engineer PrivatBank

I tested releases for one of the largest mobile banking applications in Eastern Europe. My work focused on ensuring reliable functionality across mobile banking and payment-related features.

I used exploratory testing to identify critical security and usability defects in payment gateways and contributed to improving release quality.

Education

Learning history

Odesa I.I. Mechnikov National University

Master's Degree, Journalism, Advertising, and Publishing

Master's degree studies in the Faculty of Journalism, Advertising, and Publishing.

Oles Honchar Dnipro National University

Bachelor's Degree, Journalism, Mass and Social Communications, PR, Publishing and Editing

Bachelor's degree studies in journalism, mass and social communications, public relations, publishing, and editing.

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