GitHub Professional Certificate

Front-End Web Development (Vue.js, JavaScript)

Responsive Web Design

Fundamentals of Digital Marketing

CSS 

Secure Coding Certificate

Version Control Systems

React JS for Beginners

JavaScript Foundations

Associate's degree

Bachelor's degree

• Contributed to various projects at ENUYGUN, including notable ones like insurance, credit, blog, and the Enuygun home page.
• Focused on developing skills in credit and insurance product domains.
• Worked on high-traffic projects, gaining experience in performance and reliability.
• Selected and implemented technology, creating user-friendly and impressive interfaces using modern web technologies such as React.js and Next.js.
• Utilized TypeScript, Jest with React Testing Library, SSR (Server-Side Rendering), and Event Stream to enhance project performance, testability, and reliability.
• Improved data flow and functionality using APIs like Axios, GraphQL, and REST.
• Gained expertise in SEO, accessibility, and performance.
• Developed design systems for major projects, making them more comprehensive and impactful.
• Enhanced teamwork and project management skills, contributing to overall job success.

Frontend Developer

Founder

• During my time at Trendyol, I gained significant technical knowledge and hands-on experience. I started with an intensive one-month training program that covered a wide range of topics in frontend, backend, and devops. Throughout this period, I deepened my understanding of fundamental technologies such as JavaScript, React, Vue3, and Node.js, as well as advanced topics including Web Performance, Accessibility, SEO, Webpack, Vite, Microfrontend, Microservice, Git, GitLab CI, Docker, Google Lighthouse, SSR, CSR, Application Monitoring, and Incident Management.

• After completing the training, I joined the Trendyol Wallet team, where I worked on a Microfrontend architecture. I was responsible for optimizing the applications and contributed to writing security tests. This experience allowed me to enhance both the performance of the applications and the security measures in place.

• Following that, I participated in the development and launch of the Trendyol Gift Card application. In th

Software Developer

• Developed a new ad management tool that enables users to create animated and static ads from scratch and share them with other providers.
• Created mockups and prototypes using Figma.
• Enhanced the user interface using JavaScript, Axios, REST, Vue.js, Vuex, Nuxt.js, and Tailwind CSS.
• Implemented authentication and protected route structures for security.
• Designed interactive UI with Canvas API and integrated QR Preview feature.
• Developed tools to optimize user assets and created an ad analysis dashboard.

Product engineer in İstanbul → koray.dev

github

medium

projects

Know about Koray Güler's work experience, education, and much more. Koray Güler

Resume of Koray Güler • Peerlist

Software Infrastructure

Operating Systems

NodeJS