Harun Olcay Köleoğlu
Full Stack Developer
Salary / Daily rate
Adana, Reşatbey, Seyhan/Adana, Türkiye
Freelance, open to permanent contract
Can come onsite
Skills
Languages
About me
Intro
Full Stack Developer with proven expertise in Next.js, React, and ASP.NET Core, specializing in scalable web applications and microservices architecture. Delivered 30% faster project turnaround times through modern development practices and cross-functional collaboration. Ready to build robust, user-focused solutions that drive engagement and performance for your business.
Work experience
Full Stack Developer
Medyanes 360
Mar 2025 - Jul 2025
5 months
Istanbul, Türkiye · Remote
• Developed dynamic, user-focused web applications using Next.js and MongoDB, enhancing user experience and engagement. • Collaborated with cross-functional teams to implement modern software methodologies, ensuring scalable and robust solutions. • Leveraged Prisma and Tailwind CSS to streamline development processes, resulting in a 30% reduction in project turnaround time.
Research And Development Intern
Tosyalı Holding
Jul 2024 - Aug 2024
2 months
Toprakkale, Osmaniye, Türkiye
• Developed a full-stack web application utilizing React for the frontend and ASP.NET Core Web API for the backend. • Collaborated with cross-functional teams to enhance user experience and application performance. • Implemented microservices architecture to improve scalability and efficiency. • Gained hands-on experience in modern web technologies and best practices.
Intern
Kilis Provincial Directorate for National Education
Aug 2023 - Aug 2023
1 month
Kilis, Kilis Merkez/Kilis, Türkiye
Intern at Kilis Provincial Directorate for National Education
Education
Adana Alparslan Türkeş Bilim ve Teknoloji Üniversitesi
Bachelor's degree
2020 - 2025
4 years 11 months