Elif Sena Çal

Backend Software Engineer with experience in .NET Core and Spring Boot, specializing in developing RESTful APIs, enterprise applications, and scalable backend services. Experienced in HR, ERP, social media, and digital platform projects, including backend integrations, Java migration, and application security improvements. Passionate about building secure, maintainable, and high-performance software using modern backend technologies and clean architecture principles.

Backend Developer at Kartega Software and Consulting Inc. (2024-12 – 2026-07)

• Hyundai – HR Management: Developed and enhanced HR management modules and RESTful APIs using.NET Core.
• Kartega – KIP: Developed HR platform features including SMS integration, leave management, and personnel management services using.NET.
• Kartega – Pendigit: Contributed to the backend development of a multi-application social media platform, developing RESTful APIs and backend services using.NET.
• FootBoss: Developed backend APIs and business services for a football-related platform using.NET.
• Vodafone – Digital Label: Contributed to the migration of backend services to Java using Spring Boot.
• THY Opet: Addressed security findings reported by the security team and implemented backend enhancements and customer-requested features.
• Destek Bilişim – Device Valuation Platform: Developed backend services and SMS integrations for a second-hand device valuation platform.

Full Stack Developer at Erhas (2024-08 – 2024-12)

• Integrated XML supplier data into the system using.NET and MSSQL
• Designed and developed database-driven reporting tools
• Improved data processing efficiency and system organization

Full Stack Developer at Ekin Industrial (2021-12 – Present)

• Developed and maintained ERP web applications
• Built modular desktop applications using WPF
• Integrated third-party systems including Apollo, WhatsApp, and payment services
• Worked on multi-module enterprise systems using.NET and MSSQL

Software Engineer at TAV Technologies (2023-10 – 2024-01)

• Developed a full-stack application for user management and flight tracking
• Implemented event-driven architecture using Kafka
• Worked with Spring Boot, Hibernate, React, Redis
• Built asynchronous communication systems with Kafka

Bachelor of Engineering in Software Engineering – Samsun University (2019 – 2024)