Koray Güler Email & Phone Number

Turkey

İstanbul

• 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 this project, I focused on visual optimizations and worked extensively with canvas technology to improve the overall user experience. Later, I transitioned to the Trendyol Payment team, where I contributed to the development of various credit products. These included Financial Solutions Web and App, Personal Loans, SME Loans, Savings, Trendyol Seller Panel, and Become a Bank Customer. I played a comprehensive role in the end-to-end development, deployment, and technology transitions of these products, ensuring smooth progression throughout each stage.• Additionally, I was actively involved in developing internal applications and solving complex problems within the company. I worked closely with my team to deliver presentations and contributed by writing blogs and developing libraries to facilitate more effective project development. These experiences not only strengthened my technical skills but also improved my ability to collaborate within a team and manage projects effectively.

İstanbul

• 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.

Zürih, İsviçre

• 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.

İstanbul, Türkiye

• Received comprehensive training on modern web development techniques through various programs.• Completed the Frontend Development Essentials program, covering HTML, CSS, and JavaScript, and gained practical skills in website creation.• Acquired knowledge of popular frameworks such as Bootstrap and Materialize CSS.• Participated in the Advanced Vue.js program, learning about components, routing, and APIs to build complex web applications.• Completed the JavaScript Essentials program, covering fundamental concepts like variables, functions, loops, and conditional statements, as well as advanced topics like object-oriented programming and asynchronous programming.• Gained comprehensive knowledge of web development techniques and tools, enhancing my ability to develop effective solutions for diverse development challenges.

İstanbul, Türkiye

• Gained knowledge in computer hardware, network systems, server systems, Linux operating systems, and security systems during my internship.• Worked on real projects and collaborated with experienced professionals.• Learned to troubleshoot and repair hardware, assemble/disassemble systems, and configure peripherals.• Gained experience in configuring and managing network devices (switches, routers, firewalls) and diagnosing network issues.• Involved in setting up and maintaining servers, installing OS and applications, and configuring services (web servers, email servers).• Developed skills in managing and monitoring server performance and security.• Acquired proficiency in Linux command line tasks (file management, process management, system administration).• Learned to identify and mitigate security risks, and implement protective measures.

Bachelor'S Degree, Management Information Systems

Activities and Societies: IT SOCIETY Lessons • Advanced Programming • Database Programming • User Experience (UX) Design • Project.

Associate'S Degree, Computer Programming, 3.58/4 Honors Student

Lessons • Object-Oriented Programming • Software Architecture • System Analysis and Design • Web Design Essentials

Technic High School, Computer Science

Lessons • Computer Science Essentials • Programming Basics • Professional Foreign Language

Education record