Hire the Best Web Testing Specialists
in Germany

I am a Senior QA Analyst with 8+ years of experience in manual and automation testing across web and mobile platforms. Currently working within a leading organization, I specialize in test case creation, execution, and detailed bug reporting. I collaborate closely with developers and product teams to reproduce issues clearly and verify fixes efficiently. What I bring to your project: 1. Comprehensive Testing: Functional, regression, smoke, and exploratory testing for web and mobile apps. 2. Clear Reporting: Detailed bug reports with precise steps to reproduce. 3. Automation: Writing automated test scripts to cover regression and exploratory tests. 4. User-Centric Mindset: Testing from both technical and real-user perspectives. 5. Reliability: Full project management from start to finish with regular communication. If you need a reliable QA tester to improve your product quality, I am ready to help.

Hello! I'm Mar, a versatile freelancer based in Berlin (Germany) ready to help you succeed! With a background in Tourism Management and a Master's degree in Digital Marketing for tourism, I bring expertise in online reputation management, web support, CRO, and technological integrations. I recently completed also the Google Professional Certificate in UX Design, where I learn about UX Research, wireframing, prototyping and testing with several online and offline tools. My technical skills include Microsoft Office, Wordpress, Webflow, Canva, Figma, Adobe XD, Maze, HTML5, CSS3, JavaScript, and more. I stay updated with the latest trends to deliver exceptional results. Native Spanish and Catalan with advanced English and German, I excel in cross-cultural communication. Choose to work with me for my Upwork experience, marketing expertise, strong work ethic, and commitment to continuous learning. Let's collaborate and bring your vision to life!

𝐀𝐫𝐞 𝐲𝐨𝐮 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐚 𝐰𝐞𝐛𝐬𝐢𝐭𝐞, 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩, 𝐨𝐫 𝐀𝐏𝐈 𝐚𝐧𝐝 𝐰𝐚𝐧𝐭 𝐢𝐭 𝐭𝐨 𝐛𝐞 𝐛𝐮𝐠-𝐟𝐫𝐞𝐞, 𝐫𝐞𝐥𝐢𝐚𝐛𝐥𝐞, 𝐚𝐧𝐝 𝐮𝐬𝐞𝐫-𝐟𝐫𝐢𝐞𝐧𝐝𝐥𝐲? 𝐈 𝐜𝐚𝐧 𝐡𝐞𝐥𝐩. I’m a Software QA Engineer with 8+ years of experience helping startups, SaaS businesses, and product teams deliver stable applications through 𝗠𝗮𝗻𝘂𝗮𝗹 𝗧𝗲𝘀𝘁𝗶𝗻𝗴, 𝗧𝗲𝘀𝘁 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻, 𝗔𝗣𝗜 𝗧𝗲𝘀𝘁𝗶𝗻𝗴, 𝗠𝗼𝗯𝗶𝗹𝗲 𝗧𝗲𝘀𝘁𝗶𝗻𝗴, 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗧𝗲𝘀𝘁𝗶𝗻𝗴, 𝗔𝗰𝗰𝗲𝘀𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝘆 𝗧𝗲𝘀𝘁𝗶𝗻𝗴, 𝗮𝗻𝗱 𝗔𝗜 𝗣𝗿𝗼𝗱𝘂𝗰𝘁 𝗧𝗲𝘀𝘁𝗶𝗻𝗴. My mission is simple: ensure your product is fully tested, compliant, and delivers a smooth, error-free experience for all users. 💡 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: 𝗠𝗮𝗻𝘂𝗮𝗹 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: Web, Mobile, API, Functional, Regression, Smoke, Exploratory Testing, UAT 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: Cypress, Playwright, Selenium, Appium, Automated Regression Testing, CI/CD Integration 𝗔𝗣𝗜 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: Postman, Swagger, REST API Validation, Integration Testing, Data Validation 𝗔𝗜 & 𝗟𝗟𝗠 𝗣𝗿𝗼𝗱𝘂𝗰𝘁 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: AI workflow testing, LLM response validation, prompt testing, AI test case generation, hallucination and edge-case testing, RAG application testing 𝗔𝗜 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻: OpenAI API, Claude API, MCP (Model Context Protocol), AI-powered CI/CD automation, self-healing test automation approaches 𝗔𝗰𝗰𝗲𝘀𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝘆 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: WCAG 2.1, ADA Compliance, Screen Readers, Keyboard Navigation, Color Contrast, ARIA Validation 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: JMeter, Load Testing, Performance Validation 𝗧𝗲𝘀𝘁 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 & 𝗖𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝗼𝗻: Jira, TestRail, Zephyr, Trello, Asana, Slack, Microsoft Teams 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: SQL Queries, Data Validation, Backend Data Verification 𝗖𝗜/𝗖𝗗 & 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗖𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝗼𝗻: GitHub, GitHub Actions, Jenkins, Azure DevOps, Docker 🌟 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞: ✔️ Detail-oriented with strong “end-user perspective.” ✔️ Real device testing → 100% reliable results ✔️ Professional, friendly & clear communication ✔️ Reliable partner for QA cycles, bug reports & test planning ✔️ Domain experience: E-commerce, FinTech, HealthTech, SaaS ⚡ If you need a dedicated QA partner who ensures your product is flawless from the first click to the last → 𝐌𝐞𝐬𝐬𝐚𝐠𝐞 𝐦𝐞 𝐭𝐨𝐝𝐚𝐲!

I'm a QA and UI/UX specialist with experience in manual testing, bug reporting, and usability analysis. I help ensure software quality through detailed testing and user-centered design feedback. Skilled in tools like JIRA, SQL, HTML/CSS, and Figma. I focus on clear communication, reliability, and delivering results that improve product performance and user experience.

Certified ISTQB Tester, Agile Tester and Professional Scrum Master with 5+ years delivering QA across eProcure, marketplaces, multi‑brand webshops and SAP Fiori projects. I translate requirements into test strategy and concise test cases, run manual and risk‑based regression, and build stable automation suites (Tricentis Tosca). I link tests to SolMan/Xray, integrate runs into CI/CD (Dex/GitLab), manage realistic test data, triage defects and sign off releases. Native Arabic, fluent English and German; based in Passau — available for freelance QA, Tosca automation, SAP testing and Agile QA coaching.

I am Kristina, a Junior Manual QA Tester focused on high-quality work and thorough bug detection. I have experience testing both web and mobile applications, performing functional, UI, usability, and exploratory testing. My main strength is finding issues that affect user experience and providing clear, detailed bug reports. I create test cases, checklists, and follow structured testing approaches to ensure full coverage and reliability. I work with tools like Jira, Chrome DevTools, and Postman. I am responsible, attentive, and committed to delivering accurate results. I will help you improve your product’s stability and overall quality.