Heejin Sim Email & Phone Number

Vancouver, British Columbia, Canada

Seoul, South Korea

- At Pakcative, I am implementing e-commerce storefront that aims to streamline communication between customers and package makers.- Cross-Cultural Collaboration: Actively engaged in communication with individuals from diverse countries, ensuring a thorough understanding of requirements. Incorporated UI/UX changes from scratch based on collaborative insights, enhancing the global appeal of the e-commerce platform.- Performance Optimization: Leveraged the power of Next.js, implementing Server-Side Rendering (SSR) and other optimization features to deliver a high-performance and responsive user interface. Prioritized efficiency in every aspect of the frontend development process.- Seamless Integration: Successfully integrated with Builder.io, a headless CMS, and Medusa.js, a headless e-commerce framework. Applied business requirements related to packaging options and a custom quotation feature, showcasing adaptability to various technologies and frameworks.

Seoul, South Korea

- At Nuelpummaru, I was entrusted with the responsibility of maintaining and introducing new features to the Nuelpummaru CRM web application, which helps managing order and stock status that is in sync with a warehouse in Icheon. My contributions went beyond routine maintenance to making substantial improvements in code efficiency and maintainability.- Code Refactoring and Optimization: A standout achievement during my tenure was the extensive refactoring of components within the application. I successfully modularized components that originally had more than 1000 lines of code, reducing them to less than 250 lines each. This not only enhanced code readability but also improved overall development efficiency.- Code Quality and Global State Management: To elevate code convention and enhance performance, I introduced a linter and formatter to ensure consistent and high-quality code. Additionally, I migrated the application to SWR and Zustand, powerful fetching/caching libraries and global state stores. This transition significantly reduced re-renders and made state management more efficient and reusable.- Effective Cross-Functional Communication: I acted as a vital link between project managers, designers, and a foreign backend developer. I played a crucial role in ensuring that our backend requirements were clearly communicated, and project goals were met. This experience allowed me to develop strong communication and collaboration skills while bridging the gap between diverse teams.

Seoul, South Korea

- At Noleeui Balgyeon, a mobile and web service platform catering to accommodations and activities for young kids, I played a crucial role in maintaining the legacy booking system and resolving web service issues.- Enhancements and Bug Fixes: Within this role, I implemented key improvements, such as enabling pinch-to-zoom functionality for both web and web view. Additionally, I meticulously addressed numerous issues within the search functionality, ensuring smooth debouncing for user input.- BI Solution Integration: As a significant achievement, I successfully integrated a Business Intelligence (BI) solution called Airbridge into our application. This integration enabled marketers to easily track user events data, involving the implementation of over 20 event points. My attention to detail was crucial in determining when and where to send event data via API, ensuring the meaningful collection of data on the Airbridge dashboard.- Thematic Enhancements: My contributions also extended to changing the color theme across the web and web view, focusing on modularizing the color theme for consistency and conducting thorough testing to identify and resolve any missing elements.

Seoul, South Korea

- At Blockchainlabs, I was responsible for planning and implementing the prototype of the back-office web application for BlockChat, a decentralized messenger app focused on securing user identity. My role encompassed autonomously planning mockups, collecting requirements, and communicating with backend developers to bring features like subscription management and version management to life.- Web Development and SEO Expertise: I also took charge of developing the company homepage and service landing pages for various prototypes. I ensured that these pages were optimized for search engines (SEO) and used UTM parameters for effective tracking.- Unified UI Design: Despite limited resources, I successfully applied a new design UI kit to achieve a unified look-and-feel for the product, maintaining a consistent user experience and interface design.- Performance Optimization and Component Reusability: A notable achievement during my tenure was enhancing web performance. I reduced asset sizes and compressed fonts, leading to a 50% improvement in the Lighthouse index. Additionally, I improved component reusability by abstracting pagination components and following an atomic design approach.

Seoul

- At SDPlex, I was tasked with designing and developing OnCue Admin, a dynamic web dashboard. This dashboard served as a crucial tool for monitoring OnCue engine's resource usage and provided customizable settings through a user-friendly drag-and-drop panel UI.- Real-time Data Handling: Given the importance of OnCue in orchestrating engines across various industry modules and transforming raw data from smart factory lines into actionable insights, my responsibilities included handling real-time data requests. I chose and implemented optimal data structures to present real-time data in the form of interactive charts.- Real-time Panel Implementation: To achieve real-time data updates, I employed long polling and successfully integrated a real-time panel that displayed the resources of multiple OnCue Servers, providing a comprehensive view of resource usage and system performance.- Web Server Integration: As part of this project, I worked on the web server as a client to the OnCue Admin Server, which served templated HTML pages. This seamless integration allowed for a cohesive user experience.- API Integration and Deployment: I integrated over 20 APIs to ensure the smooth functioning of OnCue Admin. The successful deployment of this dashboard on CJ Cheiljedang factory lines enabled real-time monitoring and resource management, contributing to improved operational efficiency.

Bachelor Of Science - Bs, Journalism, 3.52

Bachelor Of Science - Bs, Computer Science, 4.0