Onder BAYGIN

Co-Founder & CEO @ Cliqefit | Health-tech | Scalable SaaS

Istanbul, Türkiye

About

As the co-founder of Cliqefit, a healthtech startup, I am leading the end-to-end product journey, driving everything from technical architecture to final launch. I am a Full Stack Developer with a background in fintech, real-time systems, and SaaS architectures. I’ve designed and built scalable SaaS platforms, payment gateways, and high-availability systems serving thousands of users globally. My expertise spans Node.js, Laravel, NestJS, and cloud technologies (AWS, Cloudflare, Docker), and I enjoy solving complex challenges involving distributed systems, performance optimization, and security compliance (PCI-DSS, AML, KYC). I believe in writing clean, testable code and building reliable infrastructure that scales. Outside of work, I explore low-level programming and contribute to open-source projects. Also sometimes, "fast code is better than 'clean' code that's too slow to be useful"

Experience

  • Co-Founder at Cliqefit
    Feb 2026 - Present · 6 mos

    Leading product vision, business strategy, and technical architecture to redefine healthcare technology through scalability and system reliability. My focus is on engineering high-impact solutions that solve real-world clinic workflows while maintaining a rigorous commitment to modular, future-proof system design. I drive the integration of global informatics standards, including HL7 FHIR, SNOMED CT, and ICD-10/11, to achieve seamless semantic interoperability. By spearheading the development of advanced Clinical Decision Support Systems (CDSS), I empower healthcare providers with data-driven intelligence that enhances diagnostic precision and optimizes care pathways. Navigating the intersection of technology and regulation, I oversee complex compliance frameworks including BYS, HBYS, and MBYS in Turkey. I am dedicated to building resilient, secure architectures that exceed the requirements of HIPAA, GDPR, and emerging EU healthcare standards, ensuring our platforms lead the market in both innovation and data integrity.

  • Software Developer at Noxart Games
    Jul 2024 - Feb 2026 · 1 yr 8 mos

    ◦ Global SaaS Architecture: Architected and delivered global SaaS platforms serving international users, built on scalable, high-performance cloud architectures. ◦ Real-time Collaboration: Implemented real-time collaboration features using WebSocket and edge computing technologies such as Cloudflare Workers and Durable Objects, ensuring ultra-low latency. ◦ Queue Systems: Designed fault-tolerant queue systems with advanced fallback mechanisms to maintain system reliability and data integrity. ◦ Database & API Optimization: Optimized database performance through complex query tuning and implemented GraphQL APIs for efficient, flexible data access. ◦ Payment Integration: Integrated international payment gateways and diverse third-party APIs, managing secure, large-scale external integrations

  • Software Developer at Parolapara
    Sep 2023 - Jul 2024 · 11 mos

  • Software Developer at HCT BİLİŞİM
    Mar 2023 - Jul 2023 · 5 mos

  • Software Developer at Digitales
    Nov 2022 - Feb 2023 · 4 mos