Hwanhoon Kim

Frontend Engineer

Paris, Île-de-France, France8 mos experience

Key Highlights

Increased monthly visitors by 300% for Sally Tour.
Expertise in React, Next.js, and TypeScript.
Fluent in Korean and advanced English.

Stackforce AI infers this person is a Frontend Developer specializing in SaaS applications with a focus on user experience and performance.

Contact

hwanhoon@getvocal.ai LinkedIn

Skills

Core Skills

Next.jsSupabaseReact.js

Other Skills

API IntegrationAnt DesignBusiness CommunicationsCustomer ServiceEmail NotificationsEnglishFrenchGitGitHubImage OptimizationKoreanMantine UIMicrosoft OfficePerformance OptimizationPostgreSQL

About

Frontend web developer with expertise in React, Next.js, and TypeScript, focused on building fast, SEO-optimized websites with user-friendly design. Skilled in using Supabase and modern UI libraries to create dynamic and visually appealing applications. Successfully developed Sally Tour, increasing monthly visitors and inquires by 300%. Speak native Korean and advanced English, with basic French proficiency, and authorized to work in France.

Experience

8 mos

Total Experience

8 mos

Average Tenure

Current Experience

Getvocal ai

2 roles

Frontend Web Developer

Jul 2025 – Present · 10 mos · Paris, Île-de-France, France · Hybrid

After completing my internship, I am joining Get Vocal AI as a full-time frontend developer. I’m excited to officially have become part of the team and contribute to building innovative and user-friendly web experiences.

Frontend Web Developer

Dec 2024 – Jun 2025 · 6 mos · Paris, Île-de-France, France · Hybrid

My six-month internship has just begun.
I’m honored to have the opportunity to contribute to a fast-growing AI startup.
I will work hard and learn as much as I can here in Paris over the coming months.

Kimhwanhoon

Frontend Web Developer

Jan 2024 – Present · 2 yrs 4 mos · Amiens, Hauts-de-France, France · On-site

Key Achievements in Web Development:
Full-Stack Implementation:
Built the main and admin websites using Next.js and Supabase’s PostgreSQL, enabling seamless content management for sections like Hero, Top Destination, Banner, Best of the Month, and Testimonials directly through the admin site.
User Analytics Integration:
Designed and implemented middleware to track user analytics (e.g., country, browser type, and visited routes), presenting actionable insights in the admin panel for real-time monitoring.
Automation & Real-Time Features:
Automated email notifications for new inquiries using Nodemailer and integrated real-time updates in the admin navigation with notification icons for enhanced efficiency.
Advanced Image Optimization:
Developed an admin panel image converter with drag-and-drop functionality to optimize images for faster loading and better user experience.
Performance Optimization:
Improved website loading speed with SSG (Static Site Generation) and CDN image caching, leading to a 300% increase in user inquiries compared to the previous version.
SEO & Dynamic Metadata: Dynamically generated metadata and statically generated pages using database inputs from the admin panel, significantly improving SEO performance.
Security and Serverless Architecture:
Utilized Next.js serverless functions for handling secure responses and implemented encryption/decryption to protect sensitive data, ensuring no exposure on the client side.
Post-Launch Success:
Attracted over 10,000 monthly visitors post-launch by delivering a fast, secure, and user-friendly platform tailored for admins and end-users alike.

Next.jsSupabasePostgreSQLUser AnalyticsEmail NotificationsImage Optimization+3

Spartan coding club

JUNIOR FRONTEND DEVELOPER

Mar 2023 – Nov 2023 · 8 mos · Seoul, South Korea · Remote

I have successfully spearheaded several projects centered around API integration and database management, leveraging my expertise in various technologies and platforms.
API Integration: Proficient in utilizing a range of APIs including Google Maps API, Naver Maps API, and Collins Dictionary API to enhance project functionalities and user experiences.
Database Management: Demonstrated adeptness in managing PostgreSQL databases, particularly through the utilization of Supabase and its authentication features, ensuring seamless data storage and retrieval processes.
Frontend Development: Proficiency in front-end technologies including React.js, Next.js, TypeScript, Tailwind CSS, Ant Design, and Mantine UI, enabling the creation of intuitive and visually appealing user interfaces.
Server-Side Rendering (SSR): Acquired a solid understanding of server-side rendering principles, contributing to optimized performance and enhanced scalability of web applications

API IntegrationPostgreSQLReact.jsNext.jsTypeScriptTailwind CSS+2

Sally tour

WEB BUILDER & TOUR AGENT

Jul 2019 – Feb 2022 · 2 yrs 7 mos · Guro District, Seoul, South Korea · Hybrid

Originally hired as a tour agent responsible for conducting tours and facilitating sales in both B2B and B2C capacities, I honed invaluable communication skills while effectively mediating between tour guides, clients, and drivers. This role demanded adaptability and composure, particularly in managing urgent situations.
Transition to Web Development
During my tenure, I embarked on a journey into the realm of web development. As part of this transition, I took the initiative to build the company website utilizing Wix. While this endeavor may not have been directly tied to traditional frontend development, it served as a pivotal starting point, igniting my passion for coding and setting me on a path towards professional growth in the field.