Ertuğrul Kundak

Software Engineer

Beyoğlu, Istanbul, Türkiye

About

Backend Software Engineer | .NET Core & API Development Specialist I'm a passionate backend developer who loves continuous learning in the software world, focused on building user-centric applications with clean and maintainable code principles using the .NET Core ecosystem. As a graduate of Celal Bayar University Software Engineering program, I've gained hands-on experience in backend development from intern level to software engineer positions. I have practical expertise in C#, .NET Core, ASP.NET Core MVC technologies, specializing in RESTful API design and development. I create efficient data access layers using Entity Framework and LINQ, and perform T-SQL optimization on MS SQL Server. Throughout my professional experience, I've actively contributed to updating and modularizing legacy APIs, performance optimizations, code analysis, and bug fixing processes. I particularly have experience in API development for next-generation mobile and web applications, database design, and query performance improvements. I'm proficient in version control with Git/GitHub, API testing with Postman, and development processes using Visual Studio/VS Code. Additionally, I achieved 2nd place among 32 teams in the Cyber Security'22 Hackathon. I'm focused on continuously improving my technical skills and seeking opportunities to contribute to innovative software solutions in dynamic development teams.

Experience

  • Software Developer at Şekerbank T.A.Ş.
    Dec 2025 - Present · 7 mos

  • İyi Gelir (On-site)
    • Full Stack Developer
      May 2024 - Mar 2025 · 11 mos

    • Full Stack Developer Intern
      Feb 2024 - May 2024 · 4 mos

  • Intern at PenDC
    Jul 2023 - Aug 2023 · 2 mos