Hi, I'm Hogeun Lee, β a 4th-year Computer Science student passionate about architectural trade-offs, robust server-side technologies, and cloud infrastructure.
- Soongsil University β B.S. in Computer Science Engineering | Spring 2021 - Present
- Illinois Institute of Technology β Visiting Student in Computer Science | Spring 2026
Languages & Backend Frameworks
Databases, Brokers & Search Engines
Cloud & DevOps
CJ OliveNetworks AI CAMPUS β AI CLOUD WAVE (1st Season) | JUN 2026 - PRESENT
- An intensive 10-week, 400-hour tech program focused on enterprise AI cloud infrastructure.
Network & InfrastructureΒ·AIOps LLM OperationsΒ·AI Infrastructure Deployment Project
Illinois Institute of Technology (IIT) Tech Community | JAN 2026 - MAY 2026
- Association for Computing Machinery (ACM) (Member) : Regular tech seminars and Scarlet Hawks hackathon
- Google Student Developers (Member) : Google AI workshop
- Machine Learning Club (Member) : LLM workshop and LeetCode problem-solving sessions
UMC (University MakeUs Challenge) β Soongsil Univ. Chapter | SEP 2024 - FEB 2026
- 9th (Spring Boot Part Leader): Hosted framework study sessions, led backend code reviews, and speaker at chapter tech seminars.
- 8th (Spring Boot Part Senior): Completed advanced backend workbooks and participated in core server-side development and studies.
- 7th (Spring Boot Part Challenger): Studied production-ready Spring Boot fundamentals and successfully shipped full-cycle team projects.
KUSITMS(Korean University Students IT, Management Society) 32nd, Backend Part | AUG 2025 - DEC 2025
- Industry-academia project with LG Electronics (Backend Part)
- Completed a 3-month cross-functional team project across PM, design, and development
- Expert lectures and talks from industry professionals
CES 2025 (Consumer Electronics Show), Las Vegas, USA | JAN 2025
- Attended & Report Authored
'Exploring Future Trends in AI and FinTech Innovations' (Exhibition Visit, Networking & Report Writing)
OceanSoft Co., Project Manager | JUN 2024 - SEP 2024
- Worked at SI Outsourcing Company.
- Managed development lifecycles, structured client requirements, and scheduled component deliveries.
SSCC (Soongsil Central Computer Club) | MAR 2024 - PRESENT
- Participated in technical book clubs, AWS cloud infrastructure studies, and team software hackathons/competitions.
Soongsil Univ IT College Student Council, Planning Director | JAN 2024 - DEC 2024
- Directed major student body activities, organized chapter tech seminars, and managed large-scale community events.
SPLUG (Soongsil Power Linux User Group) | MAR 2021 - DEC 2021
- Studied C-based Linux core systems and contributed to academic advancement through seminar presentations.
Team Starlight, Backend Developer | OCT 2025 - Present
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Award: KUSITMS 32nd Best Prize
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Overview: Business plan platform for early-stage startups (Web Link)
Introduced hexagonal architecture
Built supervisor-agent and RAG-based report generation with Spring AI
Contributed to the Spring AI open-source repository (Issue #4754)
Designed for reliability using the Circuit Breaker pattern
Reduced report generation time by 40% via parallel agent execution with Java threads
Cut API calls by 90% and improved average query speed by 15% through query analysis
Team ASSU, Full Stack Developer (Android + Spring Boot) | MAY 2025 - Present
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Award: Soongsil University IT Project Competition (Service Launch & Operation), NOV 2025
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Overview: All-in-one partnership management platform between university students and local businesses (Play Store Link)
Spearheaded the entire project lifecycle, spanning from service ideation to Android and backend development
Built REST APIs with Spring Boot
Implemented 4-role RBAC with Spring Security and built a back-office admin environment
Set up production CI/CD with k3s and ArgoCD
Team Clokey, Backend Developer | JAN 2025 - JUN 2026
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When: UMC 7th Demoday Project
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Overview: Smart closet management service (App Store Link)
Built multi-module DDD architecture
Designed Spring Boot APIs with Flyway for database migrations
Provisioned AWS infrastructure with Terraform for easier server migration
Integrated and optimized Elasticsearch and MeiliSearch; tuned search accuracy (reduced zero-result queries by 45% after Nori + synonym tuning)
LG x KUSITMS Industry-Academia Collaboration | SEP 2025
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Award: Best Practice Award
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Overview: LifeZip improvement project β serverless image optimization for a lifestyle platform
Designed Spring Boot APIs
Built a serverless image optimization pipeline, reducing resource usage by 90%
Spartan Winning Startup Camp (Unithon), Soongsil University | AUG 2025
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Award: Excellence Award; Soongsil University 2025 Pre-Startup Incubation Program
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Overview: Online attachment doll-based child psychological counseling and care service
Full-stack development with Next.js, Spring Boot, and FastAPI
Built real-time communication with STT/TTS (ElevenLabs)
Implemented emotion analysis from video processing (DeepFace v0.0.83)
Team HaRu, Backend Developer | JUL 2025
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Award: UMC 8th Demoday Project β Special Prize
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Overview: All-in-one operation management platform for small teams (Web Link)
Developed Spring Boot API server
Built Google Forms-style response forms with unauthenticated token-based access
Containerized AI server with Docker and set up CI/CD
Soongsil University Software Competition | JUL 2025
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Award: 1st Place (Gold Prize)
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Overview: Handwriting archiving web service with OCR-based text preservation for personal letters and memories
Full-stack development with Next.js and Spring Boot
Implemented async processing between AI and main servers using RabbitMQ
ICT English Project Presentation Contest | DEC 2024
- 2nd Place
'The Dark Side of Military Artificial Intelligence: Risks and Ethical Concerns' (Presentation)
SPLUG Seminar Achievement, Soongsil University Linux Computer Science Club | NOV 2021
- 2nd Place
'Unity: 2D game programming' (Seminar Presentation and Code Cloning)
- TOPCIT(Test of Practical Competency in IT) β Score 752 β’ Level 4 (Proficient) β’ Problem-Solving Track | MAY 2026
- AWS Certified Cloud Practitioner Certification | OCT 2025
- SQL Developer Certification | SEP 2025
- Information Processing Craftsman Certification, Korea | JUN 2023
