Summary
Overview
Work History
Education
Skills
Certification
Cover Letter
Personal Information
Software
Hi, I’m

CHOI HYERIN

Seoul,11
CHOI HYERIN

Summary

Innovative and resourceful Computer Engineer with a proven track record of leading and delivering successful IoT, web, and mobile projects. Proficient in a wide range of cutting-edge technologies, including embedded systems, AI, NLP, and data analysis. Strong problem-solving abilities combined with excellent communication and collaboration skills. Passionate about leveraging technology to drive positive impact and create value in various industries. Committed to continuous learning and staying at the forefront of technological advancements.

Overview

5
years of professional experience
5
years of post-secondary education
9
Certifications
3
Languages

Work History

Fininsight

Lab Intern
02.2024 - 05.2024

Job overview

Lab Development Intern, Fininsight

  • Developed and maintained a financial data analysis platform called 'Fininsight Lab'
  • Collaborated with the team using GitHub for version control and efficient code management
  • Wrote Python scripts to collect, process, and analyze financial data from various sources
  • Utilized data analysis libraries such as Pandas and Numpy to preprocess and analyze large datasets
  • Supported the research and implementation of quantitative investment strategies, including backtesting and portfolio optimization
  • Gathered user feedback and translated it into actionable improvements for the platform, continually refining the service based on user needs

SeoulTech SCI AI Camp

Member
1 2023 - 03.2023

Job overview

Participated in SCI AI program to improve speech-to-text (STT) accuracy

  • Collaborated on a project to enhance the accuracy of speech-to-text models as part of the SCI AI program
  • Developed and optimized deep learning models using PyTorch and Hugging Face Transformers to process lecture speech data
  • Utilized CUDA drivers on a remote Linux server (GPU) and Anaconda to set up the baseline model and computing environment
  • Applied data augmentation techniques, hyperparameter optimization, and checkpoint strategies to improve model performance
  • Conducted research on natural language processing (NLP) theories and their applications in speech recognition tasks
  • Achieved a final BLEU score of 75.2848 through iterative model refinement and evaluation using learning curves and checkpoints

SeoulTech Big-Data Camp

Member
01.2022

Job overview

  • Utilized BeautifulSoup (Python) package for web scraping and data extraction
  • Conducted data preprocessing, tokenizing words for company names and stock codes
  • Leveraged finance-datareader package for KOSPI and Dow Jones indices analysis.

Korea Ministry of Science and ICT-led Hanium Project

Leader
02.2022 - 12.2022

Job overview

IoT-based System Development for Construction Safety Management Automation

  • Led the development of a smart glasses and application system to automate safety management and prevent accidents at construction sites using IoT technology
  • Designed a scalable 3-tier system architecture consisting of smart glasses, a cloud server (AWS), and a safety management application
  • Implemented voice commands and camera integration in smart glasses to record safety issues and capture images, improving accuracy and reducing costs
  • Developed an ETL pipeline to process voice data, extract key information, and store it efficiently using AWS services (S3, RDS, Transcribe)
  • Designed an intuitive application UI for managers to easily monitor safety status and generate reports, optimizing the database schema for handling large-scale data

Korea Ministry of Science and ICT-led Probono Project

Leader
02.2022 - 12.2022

Job overview

  • Participated in the 'Fire Evacuation System for the Visually Impaired' project
  • Led ideation and overall project management
  • Contributed to server, backend, and Raspberry Pi development
  • Utilized VirtualBox to install Raspbian on Raspberry Pi and developed on a Linux-based OS
  • Employed Naver Cloud and Django (Python) for server and SQLite for the database
  • Integrated Naver Clover OCI API for automatic sensor location input.

Seoul National University of Science and Technology

Research Assistant
11.2021 - 12.2021

Job overview

  • Developed real-time ECG monitoring system using fiber optic communication as web and Android developer using REST/JSON API integration
  • Implemented short-range wireless transmission module with nRF52840 Dongle using Python
  • Utilized InfluxDB and Grafana for data storage and visualization
  • Integrated with AWS Cloud for real-time data updates
  • Experienced in working on projects within an Agile/Scrum environment.

LikeLion (Startup Club)

Member & Education Team
01.2019 - 01.2021

Job overview

  • Developed a web page service to send daily literary works via email
  • Participated in front-end development using HTML, CSS, synchronous JavaScript, and React
  • Collaborated with team members in preparing for startup projects and hackathons
  • Led a program with over 60 selected students for a year-long web development journey
  • Contributed to UI/UX projects using Figma and Illustrator, showing strong design understanding.

Seoul City

Volunteer
10.2023 - 03.2024

Job overview

International Volunteer Experience Mongolian National University Student Collaboration and Lecture

  • Collaborated with students from the Mongolian National University to foster cultural exchange and understanding
  • Delivered a lecture to share knowledge and experiences, promoting cross-cultural learning

Ger District Disadvantaged Class Teaching and Textbook Development in Ulaanbaatar

  • Participated in teaching classes for disadvantaged students in the Ger District of Ulaanbaatar, Mongolia
  • Contributed to the development and compilation of educational materials and textbooks to support learning outcomes

NGO International Development Cooperation

  • Engaged in international development cooperation activities through a non-governmental organization (NGO)
  • Collaborated with local communities and stakeholders to identify and address development challenges
  • Demonstrated adaptability, cross-cultural communication, and problem-solving skills in a diverse and challenging environment

Education

Seoul National University of Science And Technology - SeoulTech

Undergraduate from IT Faculty Computer Engineering, Construction System Engineering
03.2018 - 05.2023

University Overview

GPA: 3.48

Skills

Technical Skills

Certification

Appropriate Technology Convergence IT Design Project, Seoul National University of Science and Technology - Engineering Education Center, 01/25/2022, Grand Prize

Cover Letter

Cover Letter

[Self-Introduction: Striving for Constant Improvement]
The Korean proverb "Jagangbulsik" (meaning "Never stop learning and improving") has been my motto. Despite facing difficulties due to an accident during high school that made it challenging even to hold a pencil, I firmly embraced the belief that overcoming physical obstacles would remove any fear of future challenges. I consider every moment as an opportunity to learn and continually strive to achieve my goals. This mindset has become the driving force and resilience in my life. While interning abroad, I encountered numerous challenges, but I remained steadfast in my commitment to put in genuine effort toward completing the tasks with the mindset of constant self-improvement.

[Strength: A Developer Capable of Successfully Planning and Leading Projects Under Realistic Constraints]
As a recipient of the top award at a technology development competition with a great idea, I decided to pursue entrepreneurship. However, as the exam period approached, my team members faced difficult circumstances. The project's development incurred expenses for OCR and cloud services that exceeded our budget, and we had to implement customer feedback improvements within a tight timeframe. Finding solutions and addressing both development and practical requirements demanded alternative approaches. I believe that when solutions are not evident, a comprehensive analysis of the situation is necessary. I visualized the timeline, organized team goals and schedules, and collected feedback to respect each team member's input. As a result, we recognized the need for study spaces and funding for development costs within the given timeframe. By separating operational and opportunity costs, we presented detailed architectural and functional designs as a refined business plan. Additionally, through an Investor Relations (IR) event, we secured a study room for team members and the required investment funds. As mutual understanding increased during the development process, we achieved a faster pace of development compared to the invested time. Through this experience, I will continue to put effort into successfully completing projects to enhance their value.

[Dream: Becoming an Individual Who Proposes Value]
Since a young age, I have wanted to be someone who proposes and recognizes value. The capability of "proposing value" is not a short-term goal but a result of long-term dedication and effort. To achieve this, I majored in computer science and sought a deep understanding of the essence of problem-solving while working on projects. As a result, I received awards such as the Excellent Paper Award from the Korea Computer Education Society Innovation Contest, the Excellence Award from the Hanium Project, and the Excellence Award from the Department of Computer Science for the "QR Code-Based Inspection Infrastructure System." I believe that my continuous effort to understand and approach the core of development and to grasp the overall technological landscape will be beneficial.

[Communication/Collaboration: Leading Collaboration]
Participating in the Hanium Program, a team-based project organized by the Ministry of Science and ICT, I successfully led collaboration by addressing two main issues. Firstly, we faced difficulties in selecting a project topic due to divergent team members' interests and backgrounds. To resolve this, I focused on fostering creativity, which is the essence of the Hanium Program. By encouraging an open atmosphere where team members could freely express their opinions and offer constructive feedback, we could discuss even minor issues together. Secondly, communication was challenging as team members lived far apart, requiring frequent face-to-face meetings for development. To tackle this, we concretely planned the project in advance. Using a scrum approach, we defined and assigned specific development tasks and requirements. Each member was responsible for their expertise, and we shared developed features, managed versions, and provided feedback. As a result, despite the one-year project period and limited in-person meetings, we successfully completed the project within the given timeframe and received awards, including the Excellent Paper Award from the Korean Society for Information Processing, the Hanium Award, and the Department of Computer Science's Excellence Award. Through an internship program, I learned to overcome language barriers and continuously made efforts to maintain essential communication during the project. As a developer, understanding and expressing the efficiency and safety of projects are crucial, and I will strive to achieve better results through effective communication with designers and planners.

[Social Humanitarian Engagement: Embracing the Future in a Right, Different, Fast, and Enjoyable Manner]
I participated in the Seoul Run Mentoring program for over a year, providing guidance to underprivileged youth. I aimed to lead their futures "rightly," respecting each individual's uniqueness, and help them stand up "fast" in adversity to create the foundation for a "different" and enjoyable life. Some of my students were in severely challenging environments that even the Seoul City administration closely monitored. Guiding them through the college entrance exam preparation was a daunting task. During this period, I recalled a passage from the book "Out of Our Minds: Learning to be Creative" by Sir Ken Robinson, which emphasized the significance of fostering resilience. I realized that nurturing resilience, a sense of self-worth, and self-respect in children is crucial in overcoming adversity. As my students faced critical moments, I held their hands and together we worked on overcoming difficulties. I also experienced personal growth as a human being during this time.

Personal Information

Personal Information
  • Date of Birth: 04/19/99
  • Nationality: KOREA

Software

Python, JavaScript, HTML/CSS, C/C, Java

React, Django, REST/JSON

Embedded Systems, IoT, nRF52840 Dongle

AWS, InfluxDB, Grafana, SQLite, MariaDB

AI/NLP, PyTorch, Hugging Face Transformers, BeautifulSoup, Pandas

Linux, Raspberry Pi, VirtualBox

UI/UX Design, Figma, Illustrator

Agile/Scrum, Git

CHOI HYERIN