Spring Boot
Core workflow technology
Full-Stack Developer • DevOps Learner
Welcome to my portfolio
Java Spring Boot, React, Docker, Kubernetes, and CI/CD focused work with a calmer product-driven presentation.
BuildAPIs + UI
ShipDocker + CI/CD
ObserveMetrics + Reliability
Core stack
Technology I use most often
Java
Core workflow technology
React
Core workflow technology
TypeScript
Core workflow technology
PostgreSQL
Core workflow technology
Docker
Core workflow technology
Spring Boot
Core workflow technology
Java
Core workflow technology
React
Core workflow technology
TypeScript
Core workflow technology
PostgreSQL
Core workflow technology
Docker
Core workflow technology
Spring Boot
Core workflow technology
Java
Core workflow technology
React
Core workflow technology
TypeScript
Core workflow technology
PostgreSQL
Core workflow technology
Docker
Core workflow technology
Spring Boot
Core workflow technology
Java
Core workflow technology
React
Core workflow technology
TypeScript
Core workflow technology
PostgreSQL
Core workflow technology
Docker
Core workflow technology
Jenkins
Core workflow technology
GitHub Actions
Core workflow technology
Kubernetes
Core workflow technology
Prometheus
Core workflow technology
Grafana
Core workflow technology
Jenkins
Core workflow technology
GitHub Actions
Core workflow technology
Kubernetes
Core workflow technology
Prometheus
Core workflow technology
Grafana
Core workflow technology
Jenkins
Core workflow technology
GitHub Actions
Core workflow technology
Kubernetes
Core workflow technology
Prometheus
Core workflow technology
Grafana
Core workflow technology
Jenkins
Core workflow technology
GitHub Actions
Core workflow technology
Kubernetes
Core workflow technology
Prometheus
Core workflow technology
Grafana
Core workflow technology
About
I build clean, practical products for real-world delivery.
Clear structure, practical tools, and delivery-focused engineering.
Full-StackSpring Boot, React, PostgreSQL
DevOpsDocker, CI/CD, Kubernetes, Prometheus
What I bring
01
API + Backend
Spring Boot API design with authentication and maintainable backend structure
02
Frontend UX
Responsive React interfaces with stronger visual hierarchy and better UX decisions
03
Delivery Flow
Docker, CI/CD, Kubernetes, and monitoring practice that supports real deployment thinking
FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •
FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •
FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •
FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •FULL-STACK DEVELOPMENT •
DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦
DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦
DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦
DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦DEVOPS AUTOMATION ✦
Capabilities
A quieter, more intentional portfolio with proof-centered sections.
API
UI
Types
Product
Data
Ship
Specs
Product-minded engineering
Features are presented as outcomes, architecture, and delivery value instead of only screenshots.
Code
Build
Test
CI/CD
Image
Deploy
Monitor
Automation-first mindset
CI/CD, containers, and deployment workflow thinking are part of the story, not an afterthought.
English
Clear
Global
Bilingual
Khmer
Personal
Audience
Bilingual presentation
English and Khmer support make the portfolio more personal and more flexible for different audiences.
Space
Focus
Color
System
Layout
Responsive
Clarity
Clean visual system
The interface now uses fewer competing elements and gives each section more breathing room.
Featured work
Project directions that connect application development with delivery and operations.
Project 1
www.docuhub.me
Live
Docuhub - Academic Paper Management & Research Platform
Discover, share, and collaborate on academic excellence through research documents, discussion, and mentorship.
www.docuhub.meProject 2
delployprojecttowo.vercel.app
Live
Deploy Project Two
Release-focused deployment project with production-style publishing.
delployprojecttowo.vercel.appProject 3
homework-rupp.vercel.app
Live
Homework RUPP
A deployed university-style homework project published on Vercel.
homework-rupp.vercel.appContact
If you need someone who can build features, improve systems, and keep growing into DevOps ownership, let’s talk.
Use the form to open your email app, or reach me directly at pengseangsim210@gmail.com.
Java, Spring Boot, REST API design
React, responsive UI, component-driven frontend
PostgreSQL, Docker, Kubernetes, monitoring
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