Göksenin Mert

Java Backend Developer with 4+ years of experience building and maintaining large-scale B2B and B2C ecommerce systems using Java, Spring (MVC & Boot), and SAP Commerce (Hybris). Hands-on experience in REST API development, SAP integrations, performance optimization, and production issue debugging. Strong background in Docker-based development environments and secure enterprise applications.

HYBRIS BACKEND DEVELOPER at Avansas Ofis Malzemeleri A.Ş. (2024-05 – 2025-03)

• Rebuilt the ÖTT (Estimated Due Date) system, improving stability and performance of core order flows. Worked on SAP integrations for enterprise systems and data synchronization.
• Designed and implemented B2B admin structures and management features.
• Optimized performance for ÖTT and W2P product modules by improving database queries and backend logic.
• Developed and maintained backend services using Java, Spring MVC, Spring Security, and SAP Commerce (Hybris).
• Actively handled production debugging and issue resolution in live systems.
• Used Docker-based local environments (DB containers) on macOS.

JAVA WEB DEVELOPER at Ecuex Bilgi Teknolojileri A.Ş. (2021-05 – 2024-05)

• Developed and maintained multiple B2B and B2C e-commerce projects using Java, Spring MVC, and SAP Commerce (Hybris).
• Built RESTful services and backend modules for order, user, and product management.
• Contributed to both backend and frontend development where needed, supporting JSP-based admin panels.
• Worked closely with clients to analyze requirements and deliver solutions.
• Participated in performance improvements and refactoring of legacy code.
• Used Docker, MSSQL, MySQL, and FlexibleSearch in production environments.

INTERN DEVELOPER at Arnios Bilgi Teknolojileri A.Ş. (2018-05 – 2018-07)

• Assisted in Java-based web application development.
• Supported debugging and minor feature implementations.
• Gained practical experience in backend development processes.

Bachelor in Computer Engineering (100% English) – Cukurova University (2016 – 2020)

Associate in Computer Programming – Mersin University (2012 – 2014)