Hire the Best Black Box Testers
in Ukraine

⭐️ Highly skilled QA Engineer with over 9 years of experience in various types of testing, including web, mobile, and desktop platforms. Proficient in creating test documentation, working with Agile methodologies, and utilizing a wide range of testing tools and frameworks. ⭐️Top Rated Plus freelancer⭐️ 100% Job Success 📌Summary of Skills: * Manual Testing Mobile Applications (Android & IOS with Testflight installed) * Manual Testing of Desktop Software and Web-based Software * Excellent bug finder with a good eye for details, receiving awards and bonuses * Document creation (Test plan, test case, test script, test scenario, user's manual) * Report Bugging Documentation * Project Handover Documentation * Worked on Agile Methodologies 📌Scope of Testing: * Manual Testing (Functional testing such as smoke and sanity testing, regression, usability, alpha-beta, positive and negative, GUI, exploratory, API, and end-to-end testing) * Mobile Apps Testing * Game app testing(mobile/desktop) * Cross-browser Testing * UI/UX Testing/Feature suggestion * Test media platforms such as Roku, Visio, Tizen, Apple TV, Fire TV, and Android TV - 5 years of experience 📌Technical Experience: * Platforms: Windows XP, Windows 7, Windows 10 * Database: MySQL * Remote Applications: TeamViewer, Remote Desktop Application * Defect Tracking and Management Tools: JIRA, Trello, X-Ray, Excel, Youtrack, Zephir, Mantis * Other software/tools: Browserstack, Google Apps, Dropbox, Postman, Slack, Microsoft Teams * Microsoft Applications and documentation tools 📌Devices: * Android - Xiaomi mi 9t PRO * iPhone XR, iPhone 12 plus, iPhone 13 (TestFlight ready) * Tablet - iPad 8 gen * Apple TV * Google Chromecast ⭐️ Why you should choose me over another freelancer ⭐️ - I provide high-quality and professional work so that the customer has a positive experience of working with me, is satisfied with the result, and wants to come back to me next time with a new job offer. - I believe that my passion for testing and ability to learn, adapt to new challenges, and grow make me a strong competitor. Have any questions or want to discuss your projects? Please do not hesitate to contact me. Let’s get started! Cheers! ------------------------------------------------------------------------------------------------ Keywords: Quality Control, Manual Testing, Quality Assurance, QA Testing, Web Testing, Bug Reports, GUI Testing, UI Testing, Software QA, QA Engineering, Desktop Application Testing, Functional Testing, Non-functional, Software Testing, Web App Tester, Usability Testing, User Acceptance Testing, Defect Tracking, Test Reporting, Test Plan, Test Case, Data Testing, Website Testing, User Story, Beta Tester, Stability/Reliability testing, Compatibility testing, Black box Testing, Cross-Browser Testing, Cross-Device Compatibility, Retesting, Front End Testing, Accessibility testing, Web Content Accessibility Guidelines (WCAG).

I'm a manual junior QA tester. My project you may see below. I know: • Software Development Life Cycle (SDLC), Software Testing Life Cycle (STLS) • Software Development Life Cycle models and differences between them • Agile principles: Scrum, Kanban • Testing axioms, methods, levels, types • Test Design Techniques • Understanding the client-server architecture • Analyze requirements • Design checklists, test cases, bug reports • API Testing Rest, Postman • Google Chrome Devtools • Working with the Jira and Testrail bug tracking system • HTML, CSS, XML • MySQL (SELECT, INSERT INTO, JOIN, WHERE, HAVING, LIKE, ORDER BY), 1C, Excel, Word • English B1

As a software tester, my passion is to ensure the quality of the project and find any issues before your users find them. My skills: Functional testing - Compatibility testing, responsive/adaptive applications testing - Documentation/Requirements analysis and testing - API testing - UI/UX testing - Pixel Perfect testing - Test cases development and execution - Tests strategy development - QA consulting/audit

I'm a QA engineer with deep experience in Web and mobile types of testing. Let’s apply my expertise to make the best product together! I am passionate about the area of quality assurance and can quickly dive into new processes. 👩‍💻 I also have experience as an accountant, which gives me the opportunity to analyze and work with a big amount of data. ⚡️My strong points are ✅functional testing ✅design testing ✅regression testing ✅analytics testing ✅usability testing ✅e-commerce testing ✅UI/UX testing for different web and mobile apps. I can help you to find errors that disrupt your website or app and threaten data security. Previously i worked with different Task management systems like: 1) Jira, 2) Click Up 3) Asana 4) Short cut 5) Monday Also have an experience with Figma, Confluence, Squidex, Google Analytics, Slack, Browser Stack, Lambdatest, Firebase, and Chrome DevTools I am experienced in the creating different types of test documentation: - test-cases, - check-lists, - bug-reports - final testing report Feel free to contact me, and lets discuss our cooperation👌

🌟 Rising talent. 🤓 Jack of all QA trades. Gain proficiency as a QA Engineer during 6 years in such respectful IT giants as GlobalLogic, Ciklum, OpenVPN. Now im starting my freelance career and going to bring my expertise and best testing practices to serve your needs. Can work with projects of any complexity. Have computer science education. Worked in the following domains: E-commerce, Healthcare, Security, Cloud solutions, Travel & Leisure activity, Networking, Finance. Can start from analysing requirements, continue with writing neat and detailed test documentation, perform testing that will demonstrate the state of your project and finish with automating routine if needed. 🛠️ Types of work: Manual testing, Regression testing, Functional testing, A/B Testing, Mobile App testing, Automation testing, Requirements analysis, API testing, Cross-Browser Testing, Cross-Platform Testing, UI/UX testing, User Acceptance Testing (UAT), Exploratory testing, Web accessibility testing, CMS testing, Magento testing, Localisation testing. 📝 Test documentation: Test plan creation, Checklist creation, Test cases creation, Bug report creation, Test strategy 💻 Devices: have physical devices (MacOS, iOS, Windows, Android). 🗂️ Databases: SQL (MySQL, PostgreSQL, SQL Server, MariaDB), NoSQL (MongoDB). 📲 Testing Infrastructure: BrowserStack, SauceLabs. 🤖 Automation stack: Java, Selenium, Selenide, TestNG, JUnit, Allure, Gradle, Maven, Jenkins, Selenoid, RestAssured, GitHub, GitLab, Bitbucket, Azure DevOps. ⚙️ API testing: Swagger, Postman, Charles Proxy, Fiddler. 📦 Test management systems: JIRA, Trelo, Asana, TestLink, TestRail 🪲 Bug tracking systems: JIRA, Mantis, Bugzilla, Redmine. 🌍 Domains: E-commerce(CarID), Healthcare(AcuteNET), Security(Thycotic), Cloud solutions(Carbonite), Travel & Leisure industries(Thomas Cook), Networking(OpenVPN), Finance(OpenVPN, billing part), CMS(Motorsweden, Aurelia London).

⛔️ Stop losing users due to crashing apps, hidden navigation barriers, and unexpected glitches! ✅ I will find critical vulnerabilities in your website, mobile, or SaaS software before they cost you time, money, and reputation. 🎯 CORE STRATEGY & TECHNICAL APPROACH Finding a reliable QA Tester who can dive deep into your product architecture is crucial for a successful launch. I streamline chaotic testing workflows by setting up a clear strategy tailored to your specific business goals, ensuring ✅ 100% requirements coverage across the entire SDLC and STLC. As your QA Tester, I identify: 🐛 Functional bugs & Smart Contract user-flow anomalies 🚦 Performance bottlenecks & Latency issues 🔐 Security threats (OWASP Top 10 & Web3 entry vulnerabilities) — early in the development process to save you time and budget. 📊 PROVEN RESULTS As a results-oriented QA Tester, I focus on tangible impacts and data-driven metrics: 🏆 4+ years of hands-on QA experience delivering high-quality web applications, SaaS, and mobile apps. 🚀 100+ successful releases shipped (including Web3 & AI integrations). 🤖 4,000+ automated tests written and 📝 10,000+ manual test cases designed. 💵 $200,000+ saved for clients through optimized QA automation and early bug detection. ⚡ Optimized CI/CD pipelines to reduce regression cycles from 5 days to 4 hours through parallel test execution. 🚨 1,000+ critical bugs caught pre-release, including memory leaks, race conditions, and SQL injections. 🧩 COMPREHENSIVE SERVICES & EXPERTISE My approach as a versatile QA Tester covers every layer of your application: • 🤖 FULL-STACK AUTOMATION: Built scalable automation frameworks using Playwright, Cypress, and Selenium WebDriver with Page Object Model and BDD practices to ensure your test suite is maintainable and readable. • 🎮 MANUAL QA, GAME & WEB3 TESTING: Whether acting as a methodical manual tester or a dedicated video game tester, I cover mechanics, balance, and UI/UX consistency (Cocos, Unity) alongside standard suites. As a game tester, I ensure bug-free gameplay. Specialize in Web3 testing, verifying dApps, token transfers, and non-custodial wallet interactions. • 🔐 API, AI & SECURITY TESTING: Validation of business logic, authentication tokens, LLM prompt responses, and data integrity using Postman and REST Assured. I conduct security audits based on OWASP standards to protect against unauthorized data access. • 📈 PERFORMANCE & LOAD TESTING: Using JMeter and k6 to simulate high-traffic scenarios (Stress, Endurance, and Spike testing), identifying server-side bottlenecks before they impact users. • 📱 MOBILE APP TESTING: Flawless experience across real iOS (via TestFlight) and Android devices, testing for battery consumption, network switching (4G/5G/Wi-Fi), and interrupt conditions. • ♿ ACCESSIBILITY (A11Y): Guaranteeing WCAG 2.1/2.2 compliance through manual screen reader testing (NVDA, JAWS) and automated audit tools like AXE and WAVE. 📱 REAL DEVICE LAB: Cross-platform verification on real Windows 10/11 laptops, iOS (iPhone via TestFlight), and Android devices. 🛠️ TECHNICAL ECOSYSTEM 📌 Methodologies: Agile, Scrum, CI/CD, DevOps. 🧪 Testing Types: Black-box, White-box, Gray-box, Cross-browser, Localization (L10n), Usability, Integration, and UAT. 💻 Languages: Java, TypeScript, JavaScript, SQL. 🔧 Tools & Web3: Postman, Newman, TestFlight, Metamask, Coinbase Wallet, WalletConnect, Burp Suite, OWASP ZAP, Charles Proxy, Fiddler, Chrome DevTools. ☁️ Infrastructure: Jenkins, GitHub Actions, GitLab CI, Docker, Kubernetes. 📋 Management: JIRA, TestRail, Zephyr, Confluence, Monday, Trello. 🏢 INDUSTRY EXPERIENCE As a QA Tester with deep domain knowledge, I have successfully delivered projects in: 💳 FINTECH, WEB3 & CRYPTO: Secure payment gateways, dApps, DEX/CEX platforms, DeFi protocols, and transaction ledger verification. 🛒 E-COMMERCE: Magento, WordPress, and Shopify platforms with high-load user flows and P2P payments. 🏥 HEALTHCARE & EDTECH: Privacy-compliant systems (HIPAA) and interactive SaaS tools. 🎰 GAMBLING & GAMING: Real-time data processing, social features, and PC/Steam game testing. 🤖 GENERATIVE AI & CMS: Testing data integrity for AI models, AI chat-bots, prompt engineering, and content management flexibility. 💡 WHY MY METHODOLOGY WORKS Choosing me as your QA Tester means getting a specialist who plugs into all stages of the SDLC. I provide developer-friendly logs, videos, and impact assessments to simplify the debug workflow. I adapt fast to changing priorities, update test cases on the fly, and ensure testing stays aligned with your roadmap. I onboarding quickly and ask the right questions to minimize the training you need to provide. ✅ READY TO LAUNCH WITH CONFIDENCE? Don't let a minor bug ruin a major release. 💬 Click the green “Message” or “Invite” button at the top right of this page to discuss how I can help as your QA Tester to make your product stable, secure, and ready for scale!