Resume

Dongwon Lee

Full-Stack Engineer building dependable SaaS experiences for global hospitality clients. Currently at Nextbeat, shipping end-to-end features across Typescript, Nest.js, SvelteKit, and AWS.

Current Role

Full-Stack Engineer · Nextbeat Inc.

Omotenashi HR's experience since Apr 2024.

Impact Areas

DevOps · Performance

AWS SAM delivery, Core Web Vitals, SEO uplift.

Toolbox

Typescript · Nest.js · SvelteKit · AWS

Cloud-native builds with multi-language delivery.

Current Base

Ebisu, Shibuya-ku, Tokyo

Nationality

Republic of Korea

Languages

Korean (Native) · Japanese (JLPT N1) · English (TOEIC ~700)

Experience

Hands-on delivery

Apr 2024 – Present

Full-Stack Engineer · Hoikushibank → Omotenashi HR

Nextbeat Inc. · Tokyo, Japan

Nest.jsTypescriptAWS SAMAWS LambdaSvelteKitNode.js

Joined Nextbeat in Apr 2024 to support Hoikushibank, then transitioned in Oct 2024 to lead engineering for Omotenashi HR. I design and deliver features across Nest.js APIs, SvelteKit front-ends, and AWS infrastructure.

  • Maintained Hoikushibank's recruiting platform through Oct 2024, owning bug triage, feature delivery, and release ops before pivoting to Omotenashi HR.
  • Migrated AWS Lambda deployments from the Serverless Framework to AWS SAM, standardizing templates and reducing deployment time by roughly 30%.
  • Raised Lighthouse SEO and Core Web Vitals scores by 20+ points through SSR tuning, modern image formats, and bundle-level code-splitting in SvelteKit.
  • Planned and executed a zero-downtime upgrade to Node.js across services with rollback coverage to meet security baselines.

Jul 2024

Contract Full-Stack Engineer

Bioden Corp. · Remote · Tokyo

SvelteKitTypescriptCloudflare Pagesi18n

End-to-end delivery of BiodenKR, a corporate marketing site that needed fast global performance and native-level copy across five languages.

  • Architected and built the site from scratch in SvelteKit with a static SSR pipeline tailored to content updates.
  • Localised every view for five languages to match regional brand guidelines without duplicating layouts.
  • Deployed via Cloudflare Pages for world-wide edge rendering and automated CI so the client can publish independently.

Selected Projects

Case studies

Nextbeat · Omotenashi HR

Serverless → AWS SAM migration

Rebuilt Lambda deployment workflows on AWS SAM to adopt native tooling and shared templates.

Cut deployment times by about 30% while simplifying CI/CD for the team.

AWS SAMAWS LambdaInfrastructure as Code

Nextbeat · Omotenashi HR

Core Web Vitals uplift

Audited SSR, images, and routes to modernise delivery and reduce blocking assets.

Boosted Lighthouse SEO scores by 20+ points, improving organic acquisition.

SvelteKitSSR TuningPerformance

Bioden Corp. · Contract

BiodenKR multi-language launch

A-to-Z website build with responsive layouts and localisation for five languages.

Launched on Cloudflare Pages with a fast, globally cached experience for worldwide visitors.

SvelteKitCloudflare Pagesi18n

Skills

How I work

Core Stack

TypescriptNest.jsSvelteKitNode.js

Cloud & DevOps

AWS LambdaAWS SAMCloudflare PagesInfrastructure as Code

Product Focus

B2B SaaS UXPerformance & SEOMulti-language delivery

Collaboration

Requirement discoveryClient communicationZero-downtime releases

Education

Academic

Apr 2024 – Present

Tokyo Communication University

Undergraduate studies

Graduated Mar 2024

Tokyo Information Creator College

Information technology program

Certifications

Proof points

JLPT N1
Japan Foundation Dec 2016
Fundamental Information Technology Engineer (FE)
Information-technology Promotion Agency (IPA) Dec 2022