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I'm a developer who specializes in... from... Give an introduction about yourself, who are you, what are your most important skills and what differentiates you from other devs. This is the first thing clients will see. They are often interested in sector experience and knowledge, so please mention it. --- Employment and project experience Senior Developer Salesforce Inc. _January 2017 - March 2017_ Full-stack Developer Microsoft Inc. _January 2019 - March 2019_…I'm a developer who specializes in... from... Give an introduction about yourself, who are you, what are your most important skills and what differentiates you from other devs. This is the first thing clients will see. They are often interested in sector experience and knowledge, so please mention it. --- Employment and project experience Senior Developer Salesforce Inc. _January 2017 - March 2017_ Full-stack Developer Microsoft Inc. _January 2019 - March 2019_

Tina Kim

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

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I'm a developer who specializes in... from... Give an introduction about yourself, who are you, what are your most important skills and what differentiates you from other devs. This is the first thing clients will see. They are often interested in sector experience and knowledge, so please mention it. --- Employment and project experience Senior Developer Salesforce Inc. _January 2017 - March 2017_ Full-stack Developer Microsoft Inc. _January 2019 - March 2019_…I'm a developer who specializes in... from... Give an introduction about yourself, who are you, what are your most important skills and what differentiates you from other devs. This is the first thing clients will see. They are often interested in sector experience and knowledge, so please mention it. --- Employment and project experience Senior Developer Salesforce Inc. _January 2017 - March 2017_ Full-stack Developer Microsoft Inc. _January 2019 - March 2019_

Available to hire

London, United Kingdom

I’m a developer who specializes in… from…

Give an introduction about yourself, who are you, what are your most important skills and what differentiates you from other devs. This is the first thing clients will see. They are often interested in sector experience and knowledge, so please mention it.

Employment and project experience

Senior Developer Salesforce Inc.
January 2017 - March 2017

Full-stack Developer Microsoft Inc.
January 2019 - March 2019

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Korean

Fluent

English

Advanced

Work Experience

Front-end Engineer (Freelance) at Onebill Utilities Limited

April 1, 2025 - May 1, 2025

Architected modular JavaScript components from a legacy vanilla JavaScript codebase, establishing reusable, framework-independent patterns that improve maintainability and reduce code coupling. Refactored complex DOM manipulation and event handling logic to eliminate unnecessary reflows, resulting in measurable performance improvements in page load times. Improved code quality through consistent conventions, removing obsolete code and restructuring monolithic scripts into testable, single-purpose functions. Built modular search and filtering logic that enabled seamless reuse across multiple applications, reducing feature development time for subsequent projects. Designed and implemented a real-time data visualization dashboard with Chart.js to monitor key metrics such as revenue trends and user behavior, informing product decisions. Optimized database query performance by replacing stored procedures with a JavaScript query builder, reducing backend response times and simplifying mainte

Front-end Engineer at Anvil

January 1, 2023 - January 1, 2024

Owned end-to-end front-end development for client projects including e-commerce platforms, corporate websites, and admin systems, collaborating with product and design teams from wireframes through production deployment. Built component architecture for a multi-language corporate website using Next.js and Emotion, creating a library of 20+ reusable UI components that accelerated development cycles and maintained design consistency. Developed real-time data visualization dashboard with Chart.js, enabling business stakeholders to monitor key metrics such as revenue trends and user behavior.