Kaan Kerim Tas

• Successfully migrated a high-traffic e-archive e-invoice integration project from .NET Framework to .NET Core, enhancing performance and scalability. • Implemented critical bug fixes on urgent projects, ensuring timely resolution of issues and maintaining high availability. • Collaborated in a hybrid environment at LC Waikiki, contributing to a culture of innovation and efficiency in software development.

• Led a team of senior and medior engineers on the development of multiple projects in Go, Node.js and Angular. • Collaborated with internal departments to gather requirements, define project goals, and establish timelines. • Monitored the progress of projects through meetings, deadlines and pull requests to give constructive feedback to team members and to enhance the team morale during the process and to provide status updates to senior management. • Fostered a collaborative, inclusive team environment, promoting continuous learning and professional development. Provide technical guidance and mentorship to junior engineers, encouraging knowledge sharing and skill growth.

• Developed web platform back ends using NodeJS (Express.js, Fastify). • Enhanced application scalability through the transformation of a mid-size monolithic architecture into a microservices architecture. • Adapted a completely AWS EC2 based architecture into AWS EKS cluster with minimal resource usage. • Facilitated deployment procedure by creating CI/CD pipelines. • Reduced server response time up to %50 by efficient caching strategies and by optimizing database queries. • Created private npm packages for company usage. • Wrote unit tests to evaluate high code coverage.

• Developed two new websites for Türk Telekom Inc. while enhancing seven existing sites using ASP .NET and Umbraco CMS. • Optimized backend performance, achieving up to 500x improvement through effective query optimization. • Implemented secure APIs in .NET Core, ensuring high performance for customer applications.