Selim B.
QA Engineer & Tester | Cypress & Playwright E2E | Web, Mobile & AI
🔐 RELEASE GATEKEEPER: Launch products confidently - no last-minute surprises. Senior QA Specialist & QA Engineer with 14+ years of experience in web application testing, mobile app testing, SaaS QA, and React Native application testing across iOS, Android, and desktop platforms. Specialized in functional testing, regression testing, release QA, Cypress/Playwright automation, API testing, usability testing, cross-browser testing, and real-device validation. I help startups and growing teams deliver stable, well-tested web and mobile applications through hands-on QA testing, exploratory testing, end-to-end workflow validation, and full QA ownership from test planning to post-release sign-off. Experienced as: SaaS QA Engineer · CRM Application Tester · React Native Tester · Automation QA Tester · Cypress QA Engineer · Manual QA Tester · Mobile App Tester · Web Application Tester · Software Tester 🤝 𝗪𝗛𝗬 𝗛𝗜𝗥𝗘 𝗠𝗘 - Clear, timely communication and full QA accountability - Business-focused defect detection, not just surface-level bugs - Stable releases across platforms, devices, and environments - Delivery of comprehensive QA documentation: Test plan, Test Cases, Bug Reports, Sign-off docs, Rulebooks, Traceability matrices, and more - Full ownership from test strategy through release sign-off 🌍 𝗗𝗼𝗺𝗮𝗶𝗻 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: SaaS | E-commerce | Booking Systems | Fintech | Healthcare | Shopify | AI | Crypto | Web3 | Crowdfunding | EdTech | Social Platforms | CRM 🧪 𝗠𝗮𝗻𝘂𝗮𝗹 𝗤𝗔 𝗦𝗸𝗶𝗹𝗹𝘀: - Functional Testing - Regression Testing - Mobile App Testing - Web Application Testing - API Testing - UI/UX Testing - Exploratory Testing - Cross-browser & Cross-device Testing - UAT & Sprint QA Support 𝐀𝐈-𝐚𝐬𝐬𝐢𝐬𝐭𝐞𝐝 𝐐𝐀 & 𝐀𝐠𝐞𝐧𝐭𝐢𝐜 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 AI tools I use in my daily QA workflow: 𝐏𝐥𝐚𝐲𝐰𝐫𝐢𝐠𝐡𝐭 𝐌𝐂𝐏 → Generate and extend Playwright tests, execute AI-assisted browser workflows, and support end-to-end automation using existing project structure. 𝐂𝐡𝐚𝐭𝐆𝐏𝐓 → Regression test case generation, edge-case brainstorming, bug report refinement, API scenario generation, and documentation. 𝐂𝐥𝐚𝐮𝐝𝐞 / 𝐂𝐥𝐚𝐮𝐝𝐞 𝐂𝐨𝐝𝐞 → Analyze Jira specifications, summarize logs, generate exploratory testing ideas, investigate bugs, and assist with Playwright automation. 𝐂𝐮𝐫𝐬𝐨𝐫 → AI-assisted debugging, selector review, frontend flow analysis, and Playwright/Cypress scripting support. 𝐧𝟖𝐧 → Automate Jira ↔ TestRail test case generation and QA workflows. 𝐋𝐨𝐨𝐦 𝐀𝐈→ Generate narrated issue summaries and video explanations. 𝐀𝐠𝐞𝐧𝐭𝐢𝐜 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 (𝐏𝐥𝐚𝐲𝐰𝐫𝐢𝐠𝐡𝐭 𝐌𝐂𝐏) → Perform AI-assisted UI testing, browser automation, workflow validation, bug reproduction, exploratory testing, and test case execution while manually verifying all results. ⚙️𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗤𝗔 𝗣𝗿𝗼𝗰𝗲𝘀𝘀: - Cypress, Playwright – automation feasibility studies, stable flow coverage, and scalable test setups - Regression automation for repetitive, high-value test cases - QA workflow design in Agile teams – including Test Planning, Bug triage, and QA sign-off 📱 𝗥𝗲𝗮𝗹-𝗗𝗲𝘃𝗶𝗰𝗲 𝗜𝗻𝘃𝗲𝗻𝘁𝗼𝗿𝘆: iPhone-17 pro max, iPhone 16 Pro Max, 15, 14, 11 Pro, X | iPad Air, Pixel 6/7, Galaxy S25 Ultra, Galaxy S24 Ultra, Moto Edge, Apple Watch Series 8 Apple M3 MAX(ARM64) , Apple macOS x64 (Intel) and windows machine. 𝗖𝗹𝗼𝘂𝗱/𝗧𝗼𝗼𝗹𝘀: BrowserStack, Android Studio, Xcode 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 𝗧𝗲𝘀𝘁𝗲𝗱: Mobile apps built with React Native & Flutter, and web applications built on any modern framework (e.g., PHP, Java, Python, JavaScript) 🛠️ 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗦𝗸𝗶𝗹𝗹𝘀 𝗧𝗵𝗮𝘁 𝗦𝘂𝗽𝗽𝗼𝗿𝘁 𝗠𝘆 𝗤𝗔 𝗪𝗼𝗿𝗸 Confident working alongside developers and setting up local environments. 𝗟𝗮𝗻𝗴𝘂𝗮𝗴𝗲𝘀 & 𝗧𝗼𝗼𝗹𝘀: Python, JavaScript, Node.js, Java, Shell, Git, Docker, npm, yarn 𝗖𝗜/𝗦𝗲𝘁𝘂𝗽: Gradle, Brew, Dev Containers, Ansible, Expo Go 🧰 𝗤𝗔 𝗦𝘁𝗮𝗰𝗸 & 𝗖𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝗼𝗻 𝗧𝗼𝗼𝗹𝘀: JIRA, TestRail, Postman, Cypress, Playwright, GitHub, Bitbucket, JMeter, Newman, Slack, Notion, Trello, Confluence 📩 Let’s ensure your next release is smooth, stable, and customer-ready. I'm ready when you are.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $11k
Billed in all: $214,792$215k
$1.2k in the last 6 months
Across 103 contracts
Earnings, last 30 days
Skill rankings: Top 7% in QA Testing
Ranked by MRR among everyone on Upwork with the skill.
- #32Cross-Browser Testing247 freelancers · 🇧🇩 #3Top 13%🇧🇩#3 of 14
- #42Test Plan379 freelancers · 🇧🇩 #1Top 11%🇧🇩#1 of 7
- #68Bug Tracking & Reports641 freelancers · 🇧🇩 #2Top 11%🇧🇩#2 of 19
- #76End-to-End Testing520 freelancers · 🇧🇩 #4Top 15%🇧🇩#4 of 16
- #100QA Testing1,392 freelancers · 🇧🇩 #2Top 7%🇧🇩#2 of 30
- #102Test Case Design957 freelancers · 🇧🇩 #3Top 11%🇧🇩#3 of 30
- #139Regression Testing1,279 freelancers · 🇧🇩 #4Top 11%🇧🇩#4 of 32
- #150Mobile App Testing1,834 freelancers · 🇧🇩 #3Top 8%🇧🇩#3 of 50