Hi, I’m Dongchan Kim (Alex).
I’m a Software Engineer studying Computer Science at Stony Brook University, with professional experience in real-time systems, backend infrastructure, and XR development. I build things that scale — from syncing 200+ VR headsets in a live concert venue to deploying multi-modal AI servers that respond in under 5 seconds.

Education

  • The State University of New York, Stony Brook University — B.S. in Technological Systems Management, Specialized in Computer Science (GPA: 3.81 / 4.00) Aug 2024 – May 2026
  • Ghent University Global Campus — Transferred to Stony Brook University Mar 2019 – Jun 2024

Professional Experience

  • Software Engineer, KAI.INC — SM REALIVE K-Pop VR Theater System Jun 2025 – Oct 2025
    • Designed a precision sync algorithm using RTT to align playback across 200+ VR HMDs within ±100ms, stabilizing inter-client lag to 1–2 frames (~33–66ms) in Alpha & Beta testing
    • Refactored a 3,000-line monolithic controller into four independent managers using SRP and Dependency Injection; resolved memory leaks via asynchronous loading and forced GC
  • Technical Education Lead, TeamSparta Inc. Jul 2024 – Aug 2025
    • Orchestrated core CS curriculum for 500+ developers, boosting average coding test pass rates by 25%; selected as “Best Tech Education Leader”
    • Conducted deep code reviews for 1,000+ implementations using Clean Code principles, achieving a 30% average gain in execution speed and memory efficiency

Awards & Honors

  • MIT Reality Hack 2026, Cambridge — Grand Gold Award & Meta Track Winner (Team of 5)
  • 2024 Google Saessak Hackathon, Seoul — Top Honorable Mention Winner (Team of 5)
  • Machine Learning Specialization — Certificate
  • Seoul National University OUTTA AI Deep Learning Camp — Double Award Winner (Participant Excellence, Team Excellence)
  • IGC Startup Idea Competition — Grand 2nd Prize Winner
  • Ministry of Science and ICT, Youth SW Mentorship Hackathon — Served as Judge and Mentor Coach

Technical Skills

  • Python / Backend, Automation, Pytest, BeautifulSoup
  • JavaScript / Node.js, React.js, WebSocket
  • C# / Unity, XR Development
  • Infrastructure / AWS (EC2, RDS, S3), Docker, GitHub Actions, CI/CD
  • Database / PostgreSQL, MySQL, RESTful API Design
  • Others / Bash/Shell Scripting, Linux, Cron, Swagger

Projects

SmartSight — MIT Reality Hack 2026 Gold Award & Meta Track Winner

Node.js PostgreSQL CI/CD WebSocket GPT-4.1 Vision

  • Developed a multi-modal AI server integrating GPT-4.1 Vision (HTTP) and OpenAI Realtime Voice API (WebSockets), enabling seamless real-time voice interaction and visual environment analysis with minimal latency
  • Reduced end-to-end latency by 60% (13s → 5s) under extreme network congestion; engineered asynchronous logic to decouple real-time voice from database I/O
  • Transitioned from single-user SQLite to production-grade AWS RDS (PostgreSQL) cluster with optimized database schema and connection pooling for concurrent multi-user transactions
  • Established a fully automated CI/CD pipeline via GitHub Actions and Docker; achieved 100% repeatable production deployments

SecureSBU — 2025 SBUhack, Team Lead

Node.js Express MySQL CI/CD Jest Swagger Discord.js

  • Engineered a modular Layered Architecture using Node.js/Express; implemented advanced pagination and filtering that improved data retrieval speed by 40% for large-scale security datasets
  • Hardened system integrity via SQL injection prevention; integrated Discord.js for real-time alerting, reducing incident response latency by over 80%
  • Established an automated pipeline via GitHub Actions and Jest; spearheaded Swagger automation, reducing team collaboration overhead by 30%

Web Content Integrity Monitor & Automation Pipeline

Python Pytest BeautifulSoup Cron

  • Engineered a custom HTML-to-Markdown engine with 95% extraction accuracy; implemented a robust testing suite using Pytest to validate parsing logic against edge cases, reducing production runtime errors by 40%
  • Established a 100% data integrity mapping system; developed an N-day difference detection pipeline that monitors hundreds of snapshots with 0% false-positives

Leadership

  • Vice President, Lambda at SUNY Korea — Code2Career Team Leader Aug 2024 – Jun 2025
    • Led data-driven outreach and strategic planning for club recruitment, resulting in a 350% YoY increase in new member applications
  • Junior Developer, XREAL — XR Developer Group at Seoul National University
  • Student Council — Junior Year Representative
  • 2024 AI Education City Program — Academic Research Mentor for Incheon Jinsan Science High School
  • Republic of Korea Army — Completed Military Service as a Medic

Hobbies

I’ve been a dedicated fan of Manchester United for over 10 years and also root for the esports team HLE (Hanwha Life Esports)!

Contact