Hi, I'm

Full Stack Developer

Full-stack developer specializing in building exceptional web applications with modern technologies.

About Me

I'm a backend-focused engineer with a strong foundation in computer science, system design, and API development. I started with C/C++ and core CS fundamentals, then transitioned into building production-oriented web systems where reliability, security, and scalability matter.

My work centers on designing clean backend architectures using Python, FastAPI, PostgreSQL, and modern cloud tooling, with a clear understanding of trade-offs in data modeling, performance, and system boundaries. I value fundamentals over frameworks and focus on building systems that are easy to reason about and maintain.

Recently, I've been integrating AI into backend systems to enhance functionality and developer productivity, treating AI as an extension of solid engineering rather than a replacement for it. I'm motivated by building practical, well-designed systems that perform reliably in real-world environments.

Frontend

React.jsReact NativeNext.jsJavascriptTypeScriptStyled ComponentsTailwind CSSReduxRecoilFramer Motion

Backend

PythonFastAPIDjangoPostgreSQLSupabaseRedisPrismaGraphQL

Tools

GitDockerAWSVercelFigmaPostman

Featured Projects

A selection of projects I've worked on recently

01

Fittable

Full-stack work schedule management calendar system with automatic KLAS SSO integration.

  • Built KLAS authentication service using RSA encryption and session-based API integration to develop automatic syncing of student timetables and profiles.
  • Developed asynchronous FastAPI REST API and SQLAlchemy ORM-based database design; optimized monthly work hour calculation performance through indexing and aggregation logic.
  • Built automatic PDF generation pipeline with ReportLab to generate work records and schedules in dynamic format (with Korean font support).
  • Implemented KLAS scraping service using HTML parsing, RSA public-key encryption, and session requests.
  • Deployed backend in Docker-based container environment and integrated Sentry monitoring, CORS middleware, and database health check system.
PythonFastAPINext.jsTypeScriptSupabaseDocker

Experience

My professional journey so far

Jul 2025 — Oct 2025

Pangyo Techno Valley, South Korea

Global Contents Creator

Foreedom

Drove user growth and brand presence among foreign communities in Korea through content, partnerships, and on-ground engagement.

  • Increased Nepali user adoption of the Vijob app by 45% through targeted content strategy and community outreach
  • Built partnerships with foreigner communities and student groups, hosting offline events to promote Vijob services
  • Planned and produced short-form videos and user-generated content for social media, boosting engagement and organic reach
Google WorkspaceMeta Business SuiteJiraConfluenceCapcut

Dec 2022 — Present

Nowon-gu, Seoul, South Korea

Student Assistant

Kwangwoon University - Office of International Affairs

Supported international student engagement initiatives by combining visual design, event operations, and cross-cultural communication as a student office assistant.

  • Designed posters and visual materials for university events targeting international and exchange students
  • Participated in and supported multiple events hosted by the Office of International Affairs, assisting with on-site operations and student coordination
  • Provided front-desk and administrative support for international students, handling inquiries, documentation guidance, and daily office tasks
  • Collaborated with staff and student volunteers to improve communication between the university and foreign students
Microsoft OfficeHancom OfficePhotoshopAcrobat ReaderFigmaCanva

Let's Connect

I'm always interested in hearing about new opportunities and collaborations.

Open to opportunities
Get in Touch

Seoul, South Korea

cssthauni@gmail.com