Hire the Best QA Engineers
in Turkey

I’m an ISTQB-Certified QA Engineer with a mechanical engineering background, over 6 years of international experience (Dubai & Morocco), and 5-digit earnings along with both the TOP RATED badge and a 100% JOB SUCCESS rate on here. With a solid engineering foundation and 100+ hours of focused QA training backed by certifications, I bring strong problem-solving skills, sharp attention to detail, and a proactive mindset to every project I undertake. My skillset covers both the fundamentals and advanced tools across various QA disciplines: • 🛠 Project & Defect Tracking: Jira, Trello, Zephyr Scale • 🔍 API & Performance Testing: Postman, JMeter • 💻 Programming & Queries: JavaScript, TypeScript, SQL • 🤖 Test Automation: Playwright, Selenium IDE/WebDriver, TestNG, Katalon Studio

Hello, I am an experienced QA Engineer with 5+ years of hands-on testing experience, working across a wide range of software systems. I specialize in AI-driven applications, Computer Vision systems, and API-based platforms, with a strong focus on delivering high-quality, reliable products. Throughout my career, I have worked on complex systems involving camera-based AI solutions (LPR & Violation detection & Face recognition & Object recognition), multi-platform applications, and backend integrations, allowing me to quickly understand new systems and identify critical issues efficiently. How I can contribute: AI & Computer Vision Testing: Designing and executing test scenarios for AI-based systems, including accuracy validation, edge cases, and reliability (LPR & Violation detection & Face recognition & Object recognition) API Testing: Validating data flow, integrations, and system consistency using tools like Postman UI/UX Testing: Ensuring usability, consistency, and alignment with design expectations Functional & Logic Testing: Verifying system workflows, business rules, and end-to-end processes Bug Reporting & Analysis: Delivering clear, reproducible bug reports with actionable insights Test Strategy & Optimization: Improving test coverage and identifying gaps to enhance overall product quality I have experience testing across multiple platforms including Windows, Android, iOS, and web-based systems, and I am comfortable working in fast-paced, iterative environments. I focus on not only finding issues, but also understanding the system deeply and providing meaningful improvement suggestions to increase product quality and user satisfaction. Tools & Technologies: API Testing (Postman, Swagger), Log Analysis (Graylog), Database Testing (MS SQL Server), Test Management (ClickUp, Jira), Browser Debugging (Chrome & Safari DevTools), UI/UX Validation (Figma) Devices & Platforms: Windows, Android, iOS, macOS (multiple real devices including iPhone, Android, and MacBook)

Tries to automate himself out. Mostly I'm testing software manually. I'm leaner to automate and improve quality software testing I'm working with/on * Manual Testing * Test Planning * Jira I'm learning * Javascript & Jest * Cypress * Python * Selenium

Hi, I’m Gülcan 🍀 ISTQB-certified QA with 3+ years of experience in functional, security, and performance testing. Skilled in Java, Selenium, JUnit, Cucumber, Jenkins, Jira, GitHub, Mobile Testing, and Agile practices. I’m curious, detail-oriented, and passionate about ensuring the best possible user experience ✨.

I’m a Software QA Engineer with extensive experience in managing and improving QA processes for web, mobile, and enterprise applications. I’ve led teams and delivered quality assurance for companies in multiple industries, from logistics and media to blockchain and finance. Skilled in test automation and manual testing with tools like Cypress, Selenium, Robot Framework, and experienced with Agile SDLC methods (Scrum, Kanban). I can handle full QA lifecycle management, from planning to execution, and I’m comfortable collaborating with developers and stakeholders across different time zones. In addition to QA, I also have experience working on freelance translation, proofreading, and localization projects, including well‑known names such as Microsoft’s Skype and Amazon’s Germany website. I’m also actively involved in AI model training, working on tasks like annotation, labelling, judging, and grading to help improve AI systems. Regular communication and clear reporting are important to me, so I make sure everyone stays aligned throughout the project.

Meta-certified Senior React Native & Node.js Engineer with 5+ years of experience building and shipping production mobile applications. I specialize in full-cycle React Native development: application architecture, native modules, SDK integrations, backend development, store releases, and ongoing production support. I’m also the author and maintainer of react-native-tdlib — a React Native bridge for Telegram’s native TDLib library, listed in the official TDLib documentation. I’m comfortable building React Native libraries and working directly with native iOS and Android code in Swift and Kotlin. Recent experience: * Delivery platform with 200k+ downloads and 10k+ App Store and Google Play reviews across customer, courier, and partner applications * Consumer subscription product with 300k+ users and 5x subscriber growth, released on iOS, Android, Huawei AppGallery, and Web * Production AI integrations using Anthropic, OpenAI, Mistral, and Gemini, including multi-provider fallback logic * 20+ cross-platform applications shipped over the past 5 years Core stack: * Mobile: React Native, Expo, Swift, Kotlin, Native Modules * Backend: Node.js, NestJS, Express * SDKs and integrations: RevenueCat, Stripe, Meta, AppsFlyer, OneSignal, Firebase * AI: OpenAI, Mistral, Gemini, Anthropic * DevOps: Fastlane, GitHub Actions, GitLab CI/CD, monitoring and release automation * Payments: Stripe, RevenueCat, Apple In-App Purchases, Google Play Billing I can take ownership of the complete development cycle — from architecture and implementation to App Store and Google Play releases. I test on real iPhones, iPads, Samsung, Xiaomi, and Huawei devices. Open to long-term contracts, React Native SDK and native-module development, full-stack mobile products, and complex third-party integrations.