Beren Kuday G.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

👨‍💻 Full-Stack Developer & Cybersecurity Expert | OSCP, CRTP, OSWP Certified 🌐 Mobile, Web & Cloud Specialist 💼 About Me: I am a multidisciplinary professional with expertise in mobile app development, web applications, and cloud solutions. I have built high-performance mobile apps using Flutter, React Native, Swift, and Kotlin. My backend development skills include Django, Flask, and Node.js, and I specialize in designing scalable cloud infrastructures on AWS and Google Cloud Platform. In addition to development, I hold certifications like OSCP, CRTP, and OSWP, enabling me to implement secure coding practices and conduct comprehensive penetration tests. 🎓 Certifications: • OSCP (Offensive Security Certified Professional) • CRTP (Certified Red Team Professional) • OSWP (Offensive Security Wireless Professional) • TSE (Turkish Standards Institute) 🚀 What I Offer: • Full-Stack & Secure Development: Complete lifecycle management for mobile and web applications with a security-first approach. • Mobile App Expertise: Cross-platform mobile app development with Flutter, React Native, Swift, and Kotlin. • Cloud Solutions: AWS-based cloud architecture design and implementation. • API & Backend Development: Secure API and backend development using Django, Flask, and Node.js. • Cybersecurity Assessments: Comprehensive web and mobile app penetration tests with detailed reporting and remediation guidance. • App Store Deployment: Expert guidance for submitting apps to Google Play and Apple App Store. 🎯 Skills & Expertise: 🛠️ Mobile & Web Development: ✔️ Flutter, React Native, Swift, Kotlin ✔️ Django, Flask, Node.js ✔️ HTML, CSS, JavaScript, React 💾 Data Storage Solutions: ✔️ Shared Preferences, SQLite, Firebase, AWS RDS, Google Cloud SQL, MongoDB, DynamoDB 🔧 Backend & API Development: ✔️ RESTful APIs, GraphQL, JWT, OAuth2 ✔️ API Documentation: Swagger, Postman ☁️ Cloud Solutions & DevOps: ✔️ AWS (Lambda, EC2, S3, RDS) ✔️ Google Cloud Platform ✔️ Terraform, CI/CD (GitLab CI, Jenkins) 🔐 Cybersecurity Expertise: ✔️ Mobile App Security: Root/Jailbreak Detection, SSL Pinning, Emulator Detection Bypass ✔️ API & Web Security: SQL/NoSQL Injection Testing, API Traffic Manipulation ✔️ Code Obfuscation Analysis: Jadx, Ghidra, IDA Pro 📈 Why Work With Me? ✅ Multidisciplinary Expertise: End-to-end development and security expertise. 🔐 Security-First Approach: Ensure secure and robust applications. 💻 Clean & Efficient Code: Maintainable and scalable code architecture. 💬 Quick Communication: Fast responses and clear communication throughout the project.