Overview

I am a software engineer with over 9 years of experience working on backend systems across domains such as education platforms, digital marketing services, and DRM solutions. In my most recent role, I built systems for collecting and analyzing web data, which led me to explore AI-based approaches—particularly large language models—for semantic understanding and reasoning over complex information.

With a background in Computer Engineering, I approach these problems from an architectural perspectives, focusing on trade-offs, and real-world constraints, and long-term maintainability. I enjoy building software, solving complex problems, and continuously learning new technologies through hands-on experimentation.

Skills & Abilities

Backend & System Engineering

  • Backend service design with Python and modern web frameworks (FastAPI)
  • Scalable API and service-oriented architecture design
  • System-level trade-offs, performance, and reliability

Data & AI Systems

  • Web data collection and analysis pipelines
  • Topic modeling and semantic analysis
  • LLM-based architectures and knowledge graph integration

Cloud & DevOps

  • Cloud-native systems on AWS (Lambda, API Gateway, S3, RDS, SQS, WAF)
  • Serverless applications with AWS SAM and infrastructure as code
  • CI/CD pipelines and production monitoring

Testing, Security & Operations

  • Backend testing practices using Pytest and related libraries
  • Cloud security, log analysis, and incident response
  • Production service operation and maintenance

Collaboration

  • Scrum-based development workflows
  • Project collaboration with Jira and Trello

Experience

  • MetisIQ (Apr 2025 - Oct 2025) - Backend engineer focused on AI-driven services and data systems

  • ClassU (Dec 2023 - Apr 2025) - Backend engineer for Education platform systems

  • Madup Inc. (Jun 2019 - Mar 2023) - Backend engineer for Marketing automation systems

  • DRM Inside Inc. (May 2016 - Jun 2019) - Research engineer for Digital creative content protection systems

Achievement

  • Center for Manycore Programming at Seoul National University (Jan 2017)

  • Undergraduate Student Researcher in UC Irvine (Jul 2015 - Aug 2015)

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