Full Stack Developer | Mobile App Builder | Problem Solver | Tech Entrepreneur
I'm a passionate full stack developer who builds scalable apps, high-traffic websites, automation tools, and modern digital products. From backend systems to mobile apps and serverless architectures, I enjoy solving complex technical problems and turning ideas into real, production-ready products.
I constantly experiment with new technologies, build side projects, and optimize everything for performance, reliability, and business impact.
- Languages: JavaScript/TypeScript, Python, PHP, Go, Java, Kotlin, Rust, C/C++
- Web: React, Angular, Vue, Next.js, Express, Django, Flask
- Mobile: React Native, Android (Java/Kotlin)
- Backend: Node.js, Go, Django REST, Laravel, Rust micro-services
- Databases: PostgreSQL, MySQL, MongoDB, Redis
- DevOps: Docker, GitHub Actions, AWS, GCP, DigitalOcean, Linux
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whats-your-iq.com A multilingual online IQ testing platform with analytics, instant scoring, and mobile-friendly UI.
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file-converter-free.com A fast, free browser-based file converter supporting dozens of document, image, and media formats.
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qr-bar-code.com A simple, fast web tool for generating and scanning QR codes and barcodes.
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PDF & EPUB Reader-Editor A lightweight offline PDF/EPUB reader with editing tools. Google Play: https://play.google.com/store/apps/details?id=com.pdfepub.readereditor
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QR & Barcode Scanner A high-accuracy scanner with history, generator, and multi-format support. Google Play: https://play.google.com/store/apps/details?id=com.emirbaycan.qrbarcode.scanner
- I work comfortably from high-level apps down to low-level C/Rust performance modules.
- I blend engineering with business: scalability, monetization, and speed matter in every project.
- I love automation, system design, and building products that work at global scale.
- Build and scale products used by millions
- Master distributed systems & high-performance architectures
- Improve myself, my code, and my teams continuously
- LinkedIn: https://www.linkedin.com/in/emirbaycan/
- Website: https://emirbaycan.com.tr/
- GitHub: https://github.com/emirbaycan