Yağız Aydın

Professional Summary

Senior Frontend Engineer with 7+ years of experience building high-performance, scalable web applications using React, TypeScript, Figma, and Adobe tools. I value honesty and transparency in development, where collaboration and learning from mistakes drive continuous improvement. I take full ownership of features from design and architecture to deployment while mentoring peers, modernizing legacy systems, and delivering intuitive, accessible, and visually appealing interfaces. Passionate about advancing in UI/UX and creating solutions that delight thousands of users while contributing to a positive, fun team culture.

Technical Skills

  • Frontend: TypeScript, React, Angular, Next.js, Redux
  • Design & Tools: UX Design, Figma, Zeplin, Wireframing, Prototyping, User Flows, Component Libraries, Accessibility
  • Backend: Node.js, Express.js, .NET Core, REST, MVC, CQRS
  • Testing: Jest, Mocha, Cypress, React Testing Library
  • DevOps & Cloud: Docker, Kubernetes, Azure CI/CD, GitHub Actions, GitLab CI
  • Other Tools & Platforms: Storybook, Jira, Postman, Swagger, Design Systems

Education

  • Yeditepe University – BCS, Information Systems & Technologies | 2015–2019
  • Eastern Mediterranean University – B.Eng. Mechanical Engineering | 2012–2015 (Transfer)

Languages

  • English: Fluent
  • Turkish: Native

Certificates

  • English City & Guilds Certificate Advanced C1
  • Kodluyoruz React Contributor Certificate

Achievements

  • 🏆 1st place at Akinon Hackathon by designing and developing a Live Commerce app using WebRTC + Mux.
  • 👩‍🏫 Supported 30+ people transitioning to the tech industry through React Bootcamp training, mentoring juniors, and enabling their first industry roles.
  • 🌍 Cross-developer role at Azerion, collaborating in a multicultural team to maintain and modernize Sitebuilder, migrating it from legacy code to React + Next.js and deploying it live.

Work Experience

BtcTurk – Senior Software Developer

📍 Istanbul | Sept 2023 – Present

  • Designed and optimized user identity flows (sign-up, login, multi-factor authentication, passkey) to improve security and user experience.
  • Built and maintained design component libraries, driving UX improvements and ensuring WCAG-compliant accessibility across applications.
  • Integrated TradingView with a standard of UDF Protocol in React with websocket, enhancing real-time trading user experience.
  • Implemented OAuth2 / OpenID Connect and FIDO2 authentication, Passkey, aligning with cybersecurity standards.
  • Collaborated in Agile rituals (Scrum, Sprint Planning, Retrospectives) to improve delivery efficiency.

Tech Stack: React, Angular, Figma, Next.js, Redux, .NET, Docker, Azure, Kubernetes

Azerion – Senior Software Developer

📍 Istanbul | May 2022 – Sept 2023

  • Developed Sitebuilder, a white-label portal using React, Next.js, Express, TypeScript, Redux.
  • Designed and implemented live game streaming SaaS flows in Figma, creating component structures and a scalable design system to support consistent UI/UX across products.
  • Optimized SSR/SSG, improving load times and SEO ranking across partner websites.
  • Integrated SDKs: Algolia, Redis, GraphQL APIs, documented via Swagger, tested with Postman.
  • Led UI/UX improvements for CMS projects in Angular & Node.js, enhancing editor productivity.
  • Managed deployments with GCP CLI and containerized apps using Docker & Kubernetes.

Tech Stack: React, Next.js, Node.js, GraphQL, Styled Components, GCP, Docker

Akinon – Software Developer

📍 Istanbul | Oct 2020 – May 2022

  • Won 1st place at Akinon Hackathon by building a Live Commerce app using WebRTC + Mux.
  • Migrated Legacy Angular → React, introducing Hooks, Context API, and Redux.
  • Improved cross-functional collaboration (UX, backend, product), enabling faster feature delivery.
  • Refactored legacy Zeplin designs by migrating to Figma, rebuilding component structures, and creating a scalable design system.
  • Contributed to CI/CD pipelines and optimized project costs through licensing evaluations.

Tech Stack: React, Zeplin, Node.js, TypeScript, AWS, Tailwind, Figma, Storybook

Birgi Mefar Group – Full Stack Developer

📍 Istanbul | Mar 2020 – Oct 2020

  • Built a customer reporting module in React + .NET for a legacy CRM.
  • Migrated .NET Core services into REST microservices, enabling PDF & Excel report generation.
  • Implemented Google Analytics SEO customization, boosting organic traffic.
  • Developed microservice tracing tool with PM2 for Node.js.

Tech Stack: React, .NET, TypeScript, Docker, Kubernetes, DigitalOcean

Kodluyoruz – Bootcamp Research Assistant

📍 Istanbul | Aug 2019 – Mar 2020

  • Conducted React Bootcamp training, teaching SPA principles, Hooks, and Context API.
  • Conducted SEO optimization, improving website ranking for target keywords.
  • Designed interactive Figma prototypes and built reusable component libraries to streamline development and ensure consistent UI/UX.
  • Assisted junior developers in learning modern JavaScript and tooling (Webpack, Babel).

Tech Stack: React, JavaScript, Styled Components, Git

Emc Information – Full Stack Developer

📍 Istanbul | Jan 2019 – Aug 2020

  • Managed 1+ e-commerce client site per month end-to-end: research, design, deployment.
  • Designed responsive layouts and UI with HTML, SCSS, and JavaScript.
  • Ensured seamless integration of payment gateways & product listings.
  • Provided post-launch optimization based on analytics & customer feedback.

Tech Stack: Laravel, CodeIgniter, JavaScript, SCSS, CSS, Git

Netaş – Internship Student

📍 Istanbul | Jun 2018 – Aug 2018

  • Prototyped applications based on business requirements.
  • Built frontends using HTML, CSS, JavaScript.