Find bugs before your customers do.
Manual QA Engineer with 5+ years of commercial experience in web and mobile application testing — UI, API, integrations and payments. I turn messy products into clear, reproducible bug reports your developers can actually act on.
Warsaw, Poland • Remote worldwide • EN B1 · PL B1 · ES A2 · BY Native
What I test
From a single landing page to a payment-heavy FinTech platform — I cover the layers where real bugs hide: UI, API, database and third-party integrations.
Web Application Testing
Web apps and SaaS products tested across browsers, screen sizes and real user flows.
- Functional testing
- Cross-browser testing
- Responsive & mobile web
- Exploratory testing
Mobile App Testing
iOS and Android applications — from onboarding to release-critical flows.
- iOS / Android
- Functional testing
- UI testing
- Regression testing
API Testing
Endpoints, request/response logic, error handling and client/server troubleshooting.
- Postman & Swagger
- HTTP & status codes
- Client/server logs analysis
- Integration testing
Payments & Integrations
Money is unforgiving. I test the flows where a single bug costs real revenue.
- Payment system integrations
- European bank integrations
- Settlements & calculations
- User-verification systems
Pre-Release QA
A focused pass right before launch, when there is no time for a full test cycle.
- Smoke testing
- Regression testing
- Critical user flows
- Release readiness report
Security Basics
Practical web application security checks to catch the low-hanging vulnerabilities.
- Nmap scanning
- OWASP ZAP
- sqlmap
- Web app security testing
The toolkit
Everything I use daily to plan, execute and document testing — plus the technical background to dig into logs, databases and APIs myself.
Testing Types
API & Web
Databases
Test Management
Security
Automation & Performance
Tools
Methodologies
Languages
Where I've worked
5+ years across iGaming and FinTech — from a single-tester role on a payment platform to a B2B product environment with cross-functional teams.
- Manual QA across a B2B iGaming web platform in a fast-paced product environment.
- Requirements analysis, functional and regression testing, defect reporting.
- Continued development of API testing and SQL skills with cross-functional collaboration.
- Manual testing of web applications (UI + API), requirements analysis and test documentation.
- Testing financial applications, settlements and calculations, payment-system integrations and integrations with European banks.
- Testing integrations with user-verification systems and client/server applications.
- API testing with Postman and Swagger; analysis of client/server logs and troubleshooting support.
- Working with MySQL / PostgreSQL to prepare and verify test data.
- Creating test cases, scenarios, checklists and detailed bug reports; tracking defects through resolution in Jira.
- Close collaboration with business analysts, developers and customers; worked as the only tester on a project and mentored trainees.
- Applied web application security knowledge using Nmap, OWASP ZAP and sqlmap; completed a basic JMeter course; knowledge of Git and Jenkins.
- Functional testing, requirements analysis and test documentation.
- Created checklists and test cases, reported bugs and prepared test results reports.
- Task planning and estimation; worked with Chrome, Firefox, PICT, TestRail and Jira.
- Bank operations, document management and customer communication.
International Humanities and Economics Institute
2015 — 2020 · International referent · Minsk
Minsk Financial and Economic College
2010 · Banking, Economist
Why work with me?
You don't need another tester who sends vague "it doesn't work" messages. You need someone who finds the real issues and explains them clearly.
Clear, reproducible bug reports
Every issue comes with steps to reproduce, expected and actual results, severity, priority and evidence — screenshots or screen recordings.
Comfortable as the only QA
I've worked as the sole tester on a project — planning my own scope, prioritising risks and keeping releases on track without hand-holding.
FinTech & iGaming domain depth
Payments, settlements, bank integrations, verification systems and B2B gaming platforms — I understand the business behind the interface.
Collaboration & mentoring
Close work with business analysts, developers and customers, plus experience mentoring trainees and sharing testing knowledge.
Flexible cooperation
One-time testing, pre-release testing or ongoing QA support — scaled to your project and budget, not to a rigid retainer.
Fast turnaround
Actionable QA feedback quickly, without hiring a full-time tester or waiting weeks for a report.
Let's find your bugs
Tell me about your product and what worries you most before release. I'll reply with a scope, a timeline and an honest estimate.
You describe the product
A short message with a link, the platform and what you're most worried about before release.
I review and estimate
I look at the product, define the testing scope and send you a timeline with a fixed price.
You get the report
Documented bugs with severity, evidence and a release risk assessment — ready for your dev team.