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Nazar Russu
Quality Assurance Engineer

Contact
Mobile: [open contact info](look above in the "contact info" section)
Telegram: t.me/russunazar
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Email: [open contact info](look above in the "contact info" section)
Location: Lviv, Ukraine

Summary

Middle+ QA Engineer with 4.5 years of experience in software testing and quality assurance across
complex systems in fintech, billing, e-commerce, and CRM.
Strong expertise in API testing, functional and regression testing, risk-based testing, test management
in TestRail, and release readiness assessment. Experienced in reducing defect rates, stabilizing
delivery processes, and aligning QA activities with business-critical goals.

Work experience

Spribe | March 2025 - September 2026
Worked in the development team of the Broadway Platform CRM - a high-load B2B iGaming
platform that automates marketing and processes data for millions of players in real time.

● Product Quality & Improvements: Identified and documented 250+ defects and initiated 30+
product improvements, with 90% of enhancements successfully implemented in production to
optimize CRM usability and stability;
● Requirements Testing: Designed and implemented a data-driven "Requirements Testing"
framework, introducing key QA metrics to improve user story readiness and predictability;
● Backend & Data Validation: Owned full-cycle E2E and integration testing for complex CRM
features; conducted root-cause investigation/analysis using logs and verified high-volume data
integrity across PostgreSQL and ClickHouse databases;
● Release & Regression Testing: Streamlined weekly regression testing and test documentation
maintenance; prepared test environments using Jenkins to ensure stable production
deployments;
● Knowledge Sharing: Authored clear, structured manual testing guides for complex third-party
integrations, streamlining onboarding and daily QA operations.

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Tech Assurance | July 2022 - March 2025
Worked across multiple client projects in e-commerce and fintech domains, progressing from
Web/UI testing to API and payment integration testing, as well as E2E test automation.

● E-commerce & Web Testing: Performed functional, UI/UX, cross-browser, regression, and
end-to-end testing for an e-commerce platform, covering product catalog, filtering, shopping
cart, checkout, and payment flows. Validated UI implementation against Figma designs and
analyzed client-server communication using Chrome DevTools.
● Fintech & Payment Testing: Tested Payfina functionality with a strong focus on payment flows
and API testing. Validated successful, failed, and edge-case transactions, request/response
data, business logic, error handling, and third-party payment integrations using Postman and
test payment data.
● Test Automation: Developed UI and E2E automated tests using Playwright and TypeScript,
covering key business flows and supporting regression testing.

Hard Skills

● QA Expertise & Methodologies: SDLC/STLC, Requirement Analysis, Test Documentation
(Checklists, Test Cases (Standard/GWT), Bug Reports);
● Testing Types: Functional, Integration, Regression, End-to-End (E2E), UI/UX, Web, and Mobile
Testing (iOS, Android), UAT Support;
● API Testing & Architecture: Postman, Swagger, Client-Server Architecture, HTTP(S), REST, API
Mocking & Test Data Simulation;
● Databases & Data: SQL (PostgreSQL, ClickHouse), Root Cause Analysis using system logs;
● Test Automation & Web Tech: Automation testing (Playwright + TypeScript), HTML5, CSS3,
JavaScript;
● Processes & Frameworks: Agile (Scrum, Kanban), Requirement Quality Metrics creation.
Tools: Chrome DevTools, Postman, Jenkins, OpenLens, BrowserStack, Figma, TestRail, Apidoc,
DBeaver, Visual Studio Code, Jira, Confluence, Gemini agents, One Signal, Android Studio, Xcode.

Education
M.S. & B.S. in Computer Science — Lviv Polytechnic National University (2019 – 2024).

Languages

● English — Intermediate (B1)
● Ukrainian — Native