Available to hire
Hi, I’m Ceyda Ulubas Tanfener, a frontend-focused developer who loves turning ideas into accessible, responsive web experiences. I enjoy collaborating with designers and product teams to craft clean interfaces using React, TypeScript, Tailwind, and Material UI. I value maintainable code and fast iterations in Agile environments.
I’ve delivered solutions for brands across multiple markets, working in SCRUM teams with UI/UX designers, backend developers, testers, and product owners. I’m passionate about accessibility, performance, and building scalable front-end architectures that empower millions of users to interact with brands seamlessly.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Beginner
Language
English
Advanced
Turkish
Fluent
Work Experience
Frontend Developer at Haypp Group
July 1, 2023 - May 1, 2025Built gamified digital advertising solutions using an in-house gaming engine written in JavaScript/TypeScript. Created in-app advertisements using various REST APIs and hardware sensors to deliver digital marketing solutions for ~500 brands worldwide. Created a single-page front-end application using MERN stack and AWS EC2 to measure brand awareness across 256 brands, engaging ~30,000 customers. Tech stack: JavaScript, TypeScript, React.js, MongoDB, Node.js, Express.js, AWS services (EC2, S3, Route 53, CloudFront), Jest, Jira, GitHub, GitLab.
Front-End Developer at NTT Data Business Solutions
July 1, 2023 - May 1, 2025Frontend development for multiple e-commerce sites, built with .NET and TypeScript. Implemented accessibility improvements for visually impaired users and optimized the CSS structure for maintainability and performance. Collaborated with UI/UX designers, backend developers, testers, and product owners in an Agile (SCRUM) environment with bi-weekly sprints. Tech stack included TypeScript, LESS, CSS, Styled Components, Tailwind, Material UI, Ant Design, React, Redux, REST APIs, Jest, Jira, GitHub.
Front-End Developer at Haypp Group
June 1, 2025 - October 1, 2025Developed 11 e-commerce sites; infrastructure built with .NET and TypeScript. Improved accessibility for visually impaired users and optimized CSS structure for better maintainability and performance. Tech stack: TypeScript, LESS, CSS, Styled Components, Tailwind, Material UI, Ant Design, React, Redux, REST APIs, Jest, Jira, GitHub. Backend: Node.js, Express.js, MongoDB. Cloud & DevOps: AWS services. Focus on responsive design and web performance.
Frontend Developer at NTT Data Business Solutions
June 1, 2025 - October 1, 2025Remote frontend development role; collaborated with cross-functional teams to deliver UI improvements and modern frontend features.
Education
Bachelor's degree in International Business Administration and Trade at Yeditepe University
September 1, 2011 - September 1, 2016Web Development Bootcamp at Amsterdam, The Netherlands
October 1, 2020 - December 1, 2020Bachelor's Degree in International Business Administration and Trade at Yeditepe University
September 1, 2011 - September 1, 2016Web Development Bootcamp at Amsterdam, Netherlands
June 1, 2021 - February 1, 2023Bachelor's Degree in International Business Administration and Trade at Yeditepe University
September 1, 2011 - September 1, 2016Qualifications
Web Development Bootcamp
October 1, 2020 - December 31, 2020Industry Experience
Software & Internet, Professional Services, Media & Entertainment, Education, Retail, Computers & Electronics
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Beginner
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