Kerim Berkay Buçan
Software Engineer
Istanbul, Turkey
"Engineering reliable systems by day, researching machine learning by night."
Software Engineer with experience in building scalable backend systems using .NET Core and ASP.NET Core. Skilled in RESTful API development, real-time communication, and database-driven applications. Experienced in Virtual POS integrations, subscription and recurring payment systems, and Ministry of Health–compliant healthcare platforms. Currently pursuing an M.Sc. in Software Engineering (thesis stage) with research experience in machine learning and deep learning. Hands-on experience with cloud services, CI/CD pipelines, and AI integrations including ChatGPT and AWS Bedrock.
Experience
Worked
Publications
Ranking
Resolution7 · Istanbul
Backend Development & Architecture
- Developed and maintained .NET Core-based RESTful APIs for enterprise-grade applications; built scalable, modular web applications using ASP.NET MVC.
- Established event-driven architectures and asynchronous messaging with RabbitMQ.
- Designed WebSocket-based infrastructures for real-time data transmission and live notifications.
- Managed high-volume MS SQL Server databases with a focus on performance optimization and strict data integrity.
Healthcare Domain & Compliance
- Designed and developed a Ministry of Health-compliant Remote Healthcare Information System from scratch.
- Engineered core modules: video consultations, appointment scheduling, prescription management, and comprehensive medical records.
- Ensured KVKK-compliant data processing with role-based authorization and secure authentication.
Payment & Subscription Systems
- Built secure Virtual POS integrations supporting 3D Secure, one-time payments, and complex installment scenarios.
- Designed end-to-end subscription and recurring payment management systems including full lifecycle management, renewals, and cancellations.
- Engineered payment flows covering callbacks, authorization, capture, reconciliation, and error-handling.
API Integration & Documentation
- Created robust integration APIs for seamless system connectivity and authored comprehensive technical documentation for internal and third-party integrations.
Plucky Technology · Istanbul
- Developed web applications using ASP.NET Core with a focus on scalability and maintainability.
- Designed and implemented RESTful APIs for backend service integration and external system communication.
- Integrated AI services using ChatGPT and AWS Bedrock APIs into enterprise applications.
- Utilised AWS services including CloudWatch, Cognito, Load Balancer, and Bedrock for cloud-native solutions.
- Implemented authentication and authorization workflows using AWS Cognito.
- Managed and optimised CI/CD pipelines using Azure DevOps.
- Performed MS SQL Server database design, management, and performance optimisation.
Codevist Technology · Istanbul
- Developed console applications in C# to automate internal data processing workflows.
- Built web scraping pipelines using Selenium to collect, parse, and structure large-scale datasets from external sources.
Focusing on advanced software architecture and engineering methodologies. Currently in thesis stage with research spanning machine learning and deep learning applications.
Core curriculum covering algorithms, data structures, software engineering, databases, and operating systems. Held leadership roles in student organisations contributing to project management and team coordination.
Backend Development
Cloud & DevOps
Data & Monitoring
AI & Machine Learning
Domain Expertise
Multi-Class Liver Disease Classification Using a Hybrid Deep Learning Framework Based on YOLO and CaiT Transformer Architectures
View on Research SquareClassification of Anemia Using Machine Learning and Feature Selection
View PublicationClassification of Tea Leaves with Deep Learning
View Congress