Youngjun Yoo

Developer at Hack the Future
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Contact Information
us****@****om
(386) 825-5501
Location
West Lafayette, Indiana, United States, IN

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Experience

    • Brazil
    • IT Services and IT Consulting
    • 1 - 100 Employee
    • Developer
      • Sep 2023 - Present

      West Lafayette, Indiana, United States YWCA Billing Team

    • United States
    • Software Development
    • 1 - 100 Employee
    • Software Engineering Intern
      • Jun 2023 - Aug 2023

      Seoul, South Korea Worked in the Development Headquarters to spearhead the creation of innovative frontend features within the Fasoo Project Management System (FPMS) using TypeScript, React.js, and Redux Toolkit to enhance user experiences and drive project success. Developed and integrated a real-time markdown renderer with React for FPMS, optimizing the documentation process for developers by reducing manual formatting time by 30%, and enhancing overall team productivity. Played a pivotal role in… Show more Worked in the Development Headquarters to spearhead the creation of innovative frontend features within the Fasoo Project Management System (FPMS) using TypeScript, React.js, and Redux Toolkit to enhance user experiences and drive project success. Developed and integrated a real-time markdown renderer with React for FPMS, optimizing the documentation process for developers by reducing manual formatting time by 30%, and enhancing overall team productivity. Played a pivotal role in seamlessly integrating the frontend with RESTful APIs, actively contributing to the design and optimization of APIs to facilitate efficient communication between the frontend and backend, ensuring streamlined data retrieval processes. Show less

    • Defense and Space Manufacturing
    • 200 - 300 Employee
    • Sergeant
      • Sep 2021 - May 2023

      Seongnam, Gyeonggi, South Korea 777th Intelligence Command

    • Software Engineering Intern
      • Jun 2021 - Aug 2021

      Seoul, South Korea Worked with the Cloud-Based Software Quality & Security Assurance team on developing an intentionally vulnerable Flask application (PyFlaGoat) with Jinja2 and SQLite3, serving as a robust platform for testing, improvement, and ongoing updates to Sparrow, an internal SAST/DAST engine, ensuring its unwavering reliability. Incorporated a prominent defense portfolio within Sparrow SAST, introducing a robust security mechanism to address obscured OWASP top 10 vulnerabilities in PyFlaGoat that… Show more Worked with the Cloud-Based Software Quality & Security Assurance team on developing an intentionally vulnerable Flask application (PyFlaGoat) with Jinja2 and SQLite3, serving as a robust platform for testing, improvement, and ongoing updates to Sparrow, an internal SAST/DAST engine, ensuring its unwavering reliability. Incorporated a prominent defense portfolio within Sparrow SAST, introducing a robust security mechanism to address obscured OWASP top 10 vulnerabilities in PyFlaGoat that would otherwise remain undetectable through alternative applications like SonarQube. Implemented server-side rendering to enable real-time on-screen Flask logging, offering performance and security monitoring. This feature provides a live display of the backend process, showcasing the secure deserialization of insecure Linux commands on the webpage. Show less

    • United States
    • Higher Education
    • 1 - 100 Employee
    • SafeRegex Undergraduate Researcher
      • Jan 2021 - May 2021

      West Lafayette, Indiana, United States Contributed to the Infrastructure Subteam's goal of improving regex safety, speed, and accuracy. Deployed web APIs (using AWS Lightsail) to offer analysis-as-a-service, and built a website using Node.js and Express.js that integrates these APIs or offers them in-browser by inlining the underlying software, depending on the user's preference. Connected a MongoDB database using Mongoose to an AWS Lightsail instance to store usage logs of previously inputted regexes, and integrated… Show more Contributed to the Infrastructure Subteam's goal of improving regex safety, speed, and accuracy. Deployed web APIs (using AWS Lightsail) to offer analysis-as-a-service, and built a website using Node.js and Express.js that integrates these APIs or offers them in-browser by inlining the underlying software, depending on the user's preference. Connected a MongoDB database using Mongoose to an AWS Lightsail instance to store usage logs of previously inputted regexes, and integrated two additional regex tools, including a regex visualization package, into the website. Conducted a change impact analysis of publishing a safe-regex update. Show less

    • Backend Developer
      • Sep 2020 - May 2021

      West Lafayette, Indiana, United States Collaborated with a team of talented student developers and designers to build industrial-scale software for NICHES Land Trust, an organization dedicated to preserving natural habitats in west-central Indiana and connecting people with nature. Developed a web application and server to track and store various items in parks and reservations requiring removal by volunteers. Integrated geolocation services to guide users along park trails and hikes using interactive landmarks and waypoints.… Show more Collaborated with a team of talented student developers and designers to build industrial-scale software for NICHES Land Trust, an organization dedicated to preserving natural habitats in west-central Indiana and connecting people with nature. Developed a web application and server to track and store various items in parks and reservations requiring removal by volunteers. Integrated geolocation services to guide users along park trails and hikes using interactive landmarks and waypoints. Contributed to the development of the backend server, utilizing Express.js as a framework for server-side development with Node.js and MongoDB for the database to build a RESTful API. Show less

    • United States
    • Higher Education
    • 700 & Above Employee
    • Undergraduate Research Assistant
      • Sep 2020 - Jan 2021

      West Lafayette, Indiana, United States Worked in the Duality Lab under the guidance of Dr. James Davis at the Purdue ECE Department. Researched regular expressions (regexes), which often cause software defects. Developed a Python-based web-crawler to extract site-specific regexes from large database websites such as Snort and ClamAV. Long-term goals include testing regex generalizations and their implications to create a benchmark for the regex engines to help practitioners. Mentor: Assistant Professor James Davis… Show more Worked in the Duality Lab under the guidance of Dr. James Davis at the Purdue ECE Department. Researched regular expressions (regexes), which often cause software defects. Developed a Python-based web-crawler to extract site-specific regexes from large database websites such as Snort and ClamAV. Long-term goals include testing regex generalizations and their implications to create a benchmark for the regex engines to help practitioners. Mentor: Assistant Professor James Davis, Ph.D. - davisjam@purdue.edu Duality Lab Website: https://davisjam.github.io/research/ Show less

Education

  • Purdue University
    Bachelor's degree, Computer Science Honors
    2020 - 2025

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