Kim hakyeong

DEVELOPER

CAREER


  1. 2025 ~ PresentFreelance Frontend DeveloperWeb & Mobile

    Website development · Mobile web and app product development · Service redesigns

    • HTML5
    • CSS
    • Vite
    • Next.js
    • React
    • Angular
    • TypeScript
    • Database
    • Hosting
  2. 2024 ~ 2025Frontend EngineerHealthcare

    Development of IoT-integrated React Native apps · Brand website development

    • React Native
    • HTML5
    • TypeScript
    • Python
  3. 2021 ~ 2024Frontend EngineerMedia & Content

    Development and launch of a content app with 500K+ downloads · Accessibility support · Performance and deployment improvements · Product development with end-to-end user data flows

    • Agile
    • React Native
    • TypeScript
    • CSS
    • CI/CD
  4. 2020 ~ 2021Full-stack DeveloperFoodTech

    Frontend and backend development for a new web service · Infrastructure migration and deployment environment setup

    • Spring
    • Next.js
    • AWS
    • Nginx
    • MySQL
project preview

I am your team’s in-house frontend developer. To help your team achieve its business goals and your users accomplish theirs.

Guided by inclusive design, I build for different abilities and real-world usage environments. Through progressive enhancement and resilient design, I create services that remain reliable across varying devices and browser capabilities—even when networks are slow or errors occur. A single codebase supports desktop, tablet, and mobile web—or both iOS and Android—reducing development and maintenance costs. Users can feel the care and attention to detail in even the smallest parts of the experience.

My work spans gathering requirements, designing practical solutions for day-to-day operations, structuring development workflows and collaboration, shaping implementation from the earliest planning stages, visualizing complex information and technical concepts for clear communication, and managing everything from project timelines to deliverables.

WORKS


  • Queer and Book Archive
  • Case Lens — AI Case Analysis for Law Students
  • Seoul Mahjong Club
  • Datarian
  • Retrial
  • B2B Website Renewal
project preview

TECH STACK


  • Web & App Development

    • JavaScript
    • TypeScript
    • React
    • Next.js
    • React Native
    • Vite
    • Node.js
    • Spring
  • UI & Interaction

    • HTML
    • CSS
    • Responsive UI
    • Accessibility
    • Tailwind CSS
    • D3.js
    • Canvas
    • GSAP
    • Framer Motion
    • Figma
  • Data & Integration

    • REST API
    • MySQL
    • NoSQL
    • Firebase
    • CMS
    • Google Sheets API
    • Apps Script
    • Web3
  • Delivery & Analytics

    • AWS
    • Nginx
    • Vercel
    • GitHub
    • GitHub Actions
    • CI/CD
    • GA4
    • Sentry
    • SEO

CONTACT