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I am a Front-End Developer with a strong focus on HTML5, CSS3, and modern JavaScript (ES6). I translate Figma designs into pixel-perfect, responsive, accessible UIs and optimize performance for high-traffic customer-facing applications. I enjoy collaborating with back-end teams to deliver reliable, scalable interfaces and continuously improving UI/UX. I adapt quickly, take direction well, and enjoy building cohesive design systems. I am currently pursuing a Master of IT – Enterprise Software Development at the University of Technology Sydney, after earning a Bachelor of Fine Arts from Sejong University. Based in Sydney, I contribute across education platforms and corporate websites, delivering polished front-end experiences.…I am a Front-End Developer with a strong focus on HTML5, CSS3, and modern JavaScript (ES6). I translate Figma designs into pixel-perfect, responsive, accessible UIs and optimize performance for high-traffic customer-facing applications. I enjoy collaborating with back-end teams to deliver reliable, scalable interfaces and continuously improving UI/UX. I adapt quickly, take direction well, and enjoy building cohesive design systems. I am currently pursuing a Master of IT – Enterprise Software Development at the University of Technology Sydney, after earning a Bachelor of Fine Arts from Sejong University. Based in Sydney, I contribute across education platforms and corporate websites, delivering polished front-end experiences.

Jiyoung Yoon

Front-End Developer, Full Stack Developer, Web Developer, +2

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I am a Front-End Developer with a strong focus on HTML5, CSS3, and modern JavaScript (ES6). I translate Figma designs into pixel-perfect, responsive, accessible UIs and optimize performance for high-traffic customer-facing applications. I enjoy collaborating with back-end teams to deliver reliable, scalable interfaces and continuously improving UI/UX. I adapt quickly, take direction well, and enjoy building cohesive design systems. I am currently pursuing a Master of IT – Enterprise Software Development at the University of Technology Sydney, after earning a Bachelor of Fine Arts from Sejong University. Based in Sydney, I contribute across education platforms and corporate websites, delivering polished front-end experiences.…I am a Front-End Developer with a strong focus on HTML5, CSS3, and modern JavaScript (ES6). I translate Figma designs into pixel-perfect, responsive, accessible UIs and optimize performance for high-traffic customer-facing applications. I enjoy collaborating with back-end teams to deliver reliable, scalable interfaces and continuously improving UI/UX. I adapt quickly, take direction well, and enjoy building cohesive design systems. I am currently pursuing a Master of IT – Enterprise Software Development at the University of Technology Sydney, after earning a Bachelor of Fine Arts from Sejong University. Based in Sydney, I contribute across education platforms and corporate websites, delivering polished front-end experiences.

Available to hire

I am a Front-End Developer with a strong focus on HTML5, CSS3, and modern JavaScript (ES6). I translate Figma designs into pixel-perfect, responsive, accessible UIs and optimize performance for high-traffic customer-facing applications. I enjoy collaborating with back-end teams to deliver reliable, scalable interfaces and continuously improving UI/UX.

I adapt quickly, take direction well, and enjoy building cohesive design systems. I am currently pursuing a Master of IT – Enterprise Software Development at the University of Technology Sydney, after earning a Bachelor of Fine Arts from Sejong University. Based in Sydney, I contribute across education platforms and corporate websites, delivering polished front-end experiences.

Skills

Experience Level

Expert

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Expert

Intermediate

Intermediate

Intermediate

Work Experience

Software Engineer & IT Support at ABM Further Education

October 1, 2024 - November 17, 2025

Led end-to-end planning, design, and development of ABM web projects as a solo full-stack developer; built the corporate website from scratch with Next.js, React, and TypeScript; developed the ABM FNC platform using tRPC, Next.js, React, TypeScript, Tailwind, and MongoDB; implemented multilingual support and email automation; integrated Stripe payments; created responsive UI components; improved SEO for WordPress site using Lighthouse; designed UI/UX prototype in Figma.

Frontend Developer & Lead of FE part at Evaheld

October 1, 2024 - October 1, 2024

Developed an Online Legacy Management Platform using Next.js, React, TypeScript, tRPC, MongoDB; integrated REST APIs and secure payment flows (Stripe); managed over 130 complex input fields with React-Hook-Form; converted input forms to PDF and embedded QR codes using React-qr-code and AWS S3.

Frontend Developer & Lead of FE part at NHN

January 1, 2024 - January 1, 2024

Led the Recruitment Site frontend using Vite, React, Tailwind CSS, React-Hook-Form, React-Query, Jotai, TypeScript, and Lodash; managed the full project lifecycle and CI/CD with Jenkins; optimized server infrastructure and development efficiency by approximately 25%.

Frontend Developer at Recore

June 1, 2022 - June 1, 2022

Transitioned services from WordPress to React/Next.js, achieving a 25% speed improvement; led intuitive UI/UX improvements; built a CRM for inquiries and warehouse data, reducing response time by 25%; optimized vacancy proposal processing by 40%.

Frontend Developer & Mentor at Wecode

March 1, 2021 - March 1, 2021

Maintained landing pages using React; planned curriculum for React, JavaScript, and UX/UI; led instructional sessions for approximately 30 students.