Hire the Best QA Engineers
in Poland

Web, mobile and API automation expert. Fully integrated CD and CI pipeline using Jenkins, Gitlab, Codeship and other tools. I have strong experience in creating automation tests using cucumber, jbehave, serenity BDD automation framework and using all its features, like integration with Jira, running tests in parallel on Jenkins and excellent HTML reports after finishing the tests. Expert in CD and CI setup using open source application and tools help your team to achieve high quality product with in timeline. Experience using Jenkins Codeship, aws EC2, Heroku and firebase to providing the cutting edge automation testing solution. As a load test engineer, I create the custom scripts in Jmeter and then we can run those scripts on the required infrastructure. I will help you benchmarking your application. I have working experience in creating web scrapper using phantomjs/selenium and casperjs as framework. I can save the results of web crawler in txt, xls or in DB also the out put can be in JSON format so that you have integrate it with your backend code. Following are the tools and languages I am comfortable working with: 1. Java, selenium webdriver, selenium page object model 2. Javascript, phantomjs, casperjs 3. Nodejs, ES6 4. Cucumber, Serenity BDD, Jbehave 5. Jenkins, Codeship, Cloudbees 6. Firebase, Heroku, AWS EC2, S3, codedeploy 7. Jmeter, Blazemeter. We have leading protractor testing framework ready to use. It has following features. 1. Customised gulp commands to run all tests, run single scenario, run tests based on tags, provide the application url from command line. 2. Configurable with CD/CI, Browser stack, Sauce lab, Bitbar 3. Single test result page for run on different browser and devices. 4. Notification for failed step and number of test failed

QA Tester for games, apps, and software — Top Rated on Upwork with 100% job success and 1,300+ hours delivered. I've tested titles including League of Legends: Wild Rift, Watch Dogs: Legion, Brex, and The Ascent, across PC, mobile, VR, and tablet. My bug reports have helped clients cut post-release issues by up to 30%. What I test: Functional, regression, and exploratory testing Compliance and localization testing Unity and Unreal Engine projects (strong working knowledge) Usability and VR compatibility testing Tools: Jira, Trello, ClickUp, Monday, Confluence How I work: I start by understanding your project's scope, build a test plan around it, then execute thorough testing and deliver clear bug reports — screenshots, video, repro steps, and fix recommendations included. Communication stays tight throughout, especially useful for international teams across time zones. Equipment: i7-9700K / 32GB RAM / RTX 2070 / ultra-wide display, Samsung Galaxy S21+ and S10+, iPhone 11 Pro and iPhone X, iPad 10.2 (9th Gen), Oculus Quest 2, Steam Deck — full coverage across PC, Android, iOS, tablet, and VR. Selected titles tested: League of Legends: Wild Rift, Watch Dogs: Legion, Brex, The Ascent, Predator: Hunting Grounds, Hometopia, Sumerian Six, Battletech, plus 8+ additional titles across PC, mobile, and VR. Send me your build or a link to your project and I'll tell you exactly how I'd test it.

I help SaaS projects launch stable web products by finding critical issues before users do. QA Engineer with 2+ years of experience testing SaaS web applications. Specialized in manual testing, exploratory testing, regression testing, bug investigation, and structured bug reporting. Testing Expertise • Functional Testing • Exploratory Testing • Regression Testing • Smoke Testing • End-to-End Testing • User Flow Testing • UI/UX Testing • Responsive Design Testing • Cross-Browser Testing • Cross-Device Testing • Accessibility Basics Testing • Authentication & Authorization Testing • Billing & Subscription Flow Testing Platforms • Web Applications • SaaS Products • CRM Systems • Admin Panels • Customer Portals • Marketing Websites • Responsive Web Applications Browsers • Google Chrome • Mozilla Firefox • Microsoft Edge • Safari Devices & Environments • Windows PC • Android Devices: google pixel 4a,6; galaxy a33, Tab S6 • Android Studio Device Emulation • IOs Devises: iphone 7, 11, 13 • Chrome DevTools Device Emulation • Sauce Labs (if required) Screen Resolutions • 1920×1080 • 1440×900 • 1280×800 • 1024×768 • 768×1024 • 390×844 • 360×800 Authentication Testing • Sign Up / Registration • Login / Logout • Magic Link Authentication • Google OAuth • Session Management • Cookie Validation • Local Storage / Session Storage Verification Edge Case Testing • Empty States • Boundary Values • Long Text Inputs • Special Characters • Browser Back / Forward Navigation • Page Refresh Scenarios • Multiple Tabs • Double Click / Rapid Click Actions • Slow Network Simulation • Offline Testing Tools • Chrome DevTools • Browser Network Analysis • Console Log Investigation • Postman • Jira • Azure DevOps • Trello • Google Sheets • Loom • Slack Bug Reporting Detailed bug reports including: • Severity & Priority • Environment Information • Browser & Device Details • Screen Resolution • Reproduction Steps • Expected Result • Actual Result • Screenshots • Screen Recordings • Console & Network Findings Technical Knowledge • REST API Testing • HTTP Methods & Status Codes • JSON Validation • OAuth Flows • SPA Applications • Responsive Design Principles Recent Experience • ServiceChannel – Manual QA Engineer * Functional testing of web-based SaaS platform * Regression testing before releases * Exploratory testing of new features * Defect investigation and reporting * Cross-browser validation * Close collaboration with developers and product teams Availability • Daily progress updates • Fast communication • Retest and regression verification after fixes • Long-term and short-term QA engagements

I can join your team as a part-time or full-time QA or help you stabilize your product before a release. What I can help you with: • Ongoing QA support for SaaS products • Web and mobile application testing (iOS & Android) • Release readiness and pre-release testing • Manual and exploratory testing focused on real user flows • API testing and validation • Regression testing and release verification Platforms: • Web applications • iOS & Android mobile apps Mobile testing experience includes: • iOS & Android app flows • App Store / Google Play release validation • In-app purchases and subscriptions • UI/UX validation on real devices Experience & background: • 8+ years of QA experience across web and mobile projects • Experience with both early-stage products and mature platforms • Strong knowledge of QA processes, methodologies, and standards • API testing with Postman • Test management and documentation (checklists, test cases, bug reports) • Familiar with tools such as Jira, TestRail, Zephyr, Asana, Trello, Azure DevOps • Basic understanding of SQL, HTML, and CSS When I’m a good fit: ✔ You’re building or scaling a SaaS product ✔ You need a QA engineer who can integrate into your team ✔ You want reliable support during releases and updates Open to part-time, full-time, or flexible long-term collaboration. Also available for focused pre-release QA support when needed.

👋 Hi there! I'm Tatjana, your friendly neighborhood QA Engineer 🕵️‍♂️. 🌟 Quality assurance is not just a job for me; it's a passion! I get a thrill out of hunting down those pesky bugs and ensuring that software shines like a star. 🌠 💡 Here's what you can expect from me: ✅ Years of experience in software testing. ✅ A keen eye for detail, nothing escapes my radar. ✅ A knack for creating robust test plans and test cases. ✅ An obsession with delivering top-notch, bug-free software. ✅ A friendly, collaborative approach – I'm here to make your project shine! 💻 What I bring to the table: 🕶️ Proficiency in various testing types, including functional, regression, and usability testing. 🧩 Expertise in test automation tools like Playwright and Cypress. 📈 Experience in working with Agile and Scrum methodologies. 🚀 Let's collaborate and ensure your software is as flawless as can be! Whether it's web or mobile apps, I'm here to help you achieve software perfection. Feel free to reach out, and let's chat about your QA needs. 📬 Ready to squash those bugs and take your software to the next level? Let's get started! 💪😊 Keywords: Automation Framework, Browser Automation, Software Development, API Testing, Healthcare, End-to-End Testing, Gaming, Test Management, Functional Testing, Mobile App Testing, Bug Reports, Bug Tracking & Reports, Test Case Design, Manual Testing, Usability Testing, Financial Services, Test Strategy, Education Technology, EdTech, Selenium, Travel and Hospitality, REST API, Media and Entertainment, Playwright, Logistics and Supply Chain, Desktop Application Testing, Microsoft Azure, Data Migration Testing, Quality Assurance, Creative Writing, Node.js, Social Media Marketing, HTML, Security and Defense, Automated Testing, Performance Testing, Regression Testing, Test Documentation, Database Architecture, Docker, UI/UX Prototyping, GitHub, C#, GraphQL, Web Testing, User Acceptance Testing, Government and Public Sector, TypeScript, Appium, PostgreSQL, Bug Reports, Azure DevOps, Test Case Execution, Web Scraping, Communication Skills, Quality Control, Exploratory Testing, Puppeteer, React, .NET Framework, E-commerce, Docker Compose, Java, Web Design, XCUITest, Agile Testing, Data Integration Testing, DevOps, Cloud Computing, Software as a Service, SaaS, Cybersecurity, IoT, Internet of Things, Cryptocurrency, Blockchain Technology, Artificial Intelligence, Machine Learning, Digital Marketing, User Experience (UX), User Interface (UI), Test Automation, Test Coverage, Risk-Based Testing, Test Scenarios, Incident Management, Cross-Browser Testing, Black Box Testing, White Box Testing, Acceptance Testing, Field Testing, Load Testing, Security Testing, User Journey Testing, Telecommunications, Real Device Testing, Manual Test Scripts, Manual Test Logs, Client-Side Testing, Feedback Mechanisms, Continuous Testing in Manual QA, Test Planning, Test Environment Setup, Sanity Testing, Smoke Testing, Integration Testing.

🔹Technical Sales Associate🔹 WizzDev and an IT student. I’m the first technical point of contact: I run discovery calls, translate requirements into clear scope and SoW, and coordinate with engineers to ensure plans fit performance, timeline, and cost. About WizzDev We design and build Internet-connected solutions for embedded platforms: 🔹 ESP32/STM32 IoT systems, embedded & firmware development, PCB design 🔹 Data acquisition from IoT sensors and USB/PCIe devices 🔹 Bespoke instrument control with cross-platform GUIs 🔹 Big-data/time-series pipelines with cloud integration (AWS IoT Core, Azure, Egnyte) We are an Upwork Top Rated Plus agency and partners with Espressif Systems and AWS. How I Work 🔹 Fast responses and clear next steps after each call 🔹 Structured discovery and decision-ready notes 🔹 Single point of contact from inquiry to kickoff I Help With (Sales/Presales) 🔹 Quick qualification and scoping with decision-ready proposals 🔹 Identifying risks and planning milestones (with SoW) 🔹 Cost-effective options (BoM alternatives, phased PoC → Pilot → Production) 🔹 Procurement-ready SoW (NDA/MSA; fixed-bid phases when appropriate) Tech Focus 🔹 ESP32, STM32 | C/C++, Python, JavaScript, C# 🔹 BLE, MQTT, RFID | Raspberry Pi, Arduino 🔹 Qt, VC++, PySide, Flask, Django 🔹 Linux (Ubuntu, Yocto), Windows, Docker 🔹 AWS IoT Core, Azure, Egnyte | HDF5 & time-series data 🔹 CI, TDD, Jenkins, Git, Jira Typical Asks 🔹 IoT systems with cloud integration (ESP32/STM32) 🔹 Bespoke instrument control & cross-platform GUIs 🔹 Data acquisition & visualization (USB/PCIe, time-series) 🔹 Laboratory automation Let’s Work Share your goal, constraints, and required interfaces - I’ll respond quickly with options and a technical proposal.