I develop fintech & enterprise products end to end.
Hello, I'm Ahmet Ay
ABOUT ME
I am a Full Stack Developer building end-to-end products from backend to frontend.
In fintech and banking, I've developed deep expertise with microservices, CQRS, and robust APIs.
On mobile and web, I build UI/UX-aligned, performance-focused interfaces—taking products end to end from architecture to production and keeping them sustainable.
Specializations
Companies I've Worked With
Main Projects
Misyon Bank
I developed high-performance, scalable backend services and APIs for the Loan module of the Misyon Bank mobile application.
The system handled personal and commercial loan calculations, multi-bank data aggregation, and credit evaluations based on KKB scores.
- Multi-bank integration for aggregating loan and credit card data
- CQRS-based architecture with separated data flows and optimized data access
- Scalable backend services designed for high transaction volumes
Misyon Bank
I developed high-performance, scalable backend services and APIs for the Loan module of the Misyon Bank mobile application.
The system handled personal and commercial loan calculations, multi-bank data aggregation, and credit evaluations based on KKB scores.
- Multi-bank integration for aggregating loan and credit card data
- CQRS-based architecture with separated data flows and optimized data access
- Scalable backend services designed for high transaction volumes
QNB
I developed interactive dashboard interfaces for analyzing and reporting company-level and industry data.
By implementing a component-based architecture, I achieved up to a 40% improvement in page load performance.
- Modular and reusable component structure for a maintainable frontend architecture
- Real-time and interactive data visualization using Chart.js
- Enhanced reporting experience with advanced filtering and data export capabilities
MorPara
I developed user management and financial transaction tracking modules for a platform that digitizes municipal social aid processes.
I securely processed citizens' personal data, ensuring data integrity and privacy while reducing manual workload in aid distribution processes by 80%.
- Role-based access control and secure user management infrastructure
- Traceable and auditable financial transaction system
- Optimized backend architecture for high-volume data processing
Teknosa
I developed high-performance frontend solutions for the e-commerce platform of one of Türkiye's leading technology retailers.
I built SEO-friendly, responsive, and UX-focused interfaces, optimizing product discovery and the overall shopping experience.
- Performance-driven frontend architecture for a high-traffic e-commerce platform
- SEO-optimized and fully responsive interfaces across devices
- Advanced product filtering and real-time search capabilities
Bonus
I developed an internal system for managing employee performance and bonus calculations.
By leveraging real-time data processing, I automated incentive mechanisms and enabled instant performance tracking.
- Configurable rule-based engine for flexible bonus calculation
- Real-time data processing for instant performance metrics
- Scalable and maintainable system architecture
Destek Holding
I developed modern frontend solutions for the corporate web infrastructure and finance portals of the Destek Holding group: Destek Bank, Destek Portföy, Destek Holding, and Destek Faktoring.
I established a unified design system to ensure consistency across multiple sub-brands, creating a scalable and maintainable frontend architecture.
- Unified design system ensuring consistency across all group brands
- Responsive and modern interfaces for finance-focused web portals
- Scalable frontend architecture supporting multi-brand structures
Corporate Websites
I developed SEO-optimized, high-performance corporate websites for Aktif Portföy, Nurol Portföy, Hepsipay, and N Kolay.
By applying a modern design language and reusable component structures, I built a scalable and maintainable frontend architecture across multiple brands.
- SEO-optimized corporate websites with a modern design language
- Performance-focused development with Lighthouse scores above 90
- Multi-client architecture supported by a reusable component library
My Engineering Expertise
C#Recent Projects
Meidan
Meidan App
App- I developed Meidan App, a scalable mobile platform that helps university students follow campus activities, connect with their community, discover events, and find housing rentals.
Meidan CMS
CMS- I developed Meidan CMS, a scalable management platform that streamlines workflows by managing users, content, notifications, and campaigns within the application.
Meidan Landing
Landing- I developed Meidan Landing, a responsive landing page that showcases the platform’s features, communicates its value, and drives user engagement.
About
As a backend-driven Full Stack Developer, I build end-to-end scalable products ranging from APIs to modern web interfaces.
I specialize in fintech and banking systems, leveraging .NET Core, CQRS, and microservice architectures to deliver high-performance, reliable, and production-ready solutions.
I focus on turning complex problems into simple, maintainable solutions, prioritizing clean and reusable code. In every system I build, I balance performance, scalability, and user experience to create long-lasting products.
From admin panels and mobile applications to dashboards and corporate web platforms, I aim to build systems that not only work but deliver real value.
