Available for Full-Stack Roles

Ratchanon
Kulpatrakorn

Full-Stack Developer

I’m a Full-Stack Developer experienced in building web applications, backend services, and production deployments. My background includes API design, scalable backend development, testing, and maintaining reliable systems in real-world environments. I’m particularly interested in building maintainable systems that balance technical quality with practical business impact.

Get in Touch ✉View Projects →GitHub ↗
10+
Projects
2
Internships
3.38
GPA
👨🏻‍💻
⚛️ React · Next.js
🟢 Node.js · Express
🐘 PostgreSQL
🐳 Docker · K8s
Career Path

Professional Experience

Nov 2025 – Mar 2026

Full-Stack Developer Intern

P Pella Company Limited
  • Architected and delivered a production-ready aquaculture management platform (Next.js 15, React 19, Node.js/Express) for Betagro, digitizing farm operations and reducing manual data entry by ~80%.
  • Designed scalable RESTful API using TypeScript and PostgreSQL with Prisma ORM; enforced type safety across all system layers, reducing runtime errors by ~65% through strict typing.
  • Implemented comprehensive test suite with Jest achieving 95%+ statement coverage; identified and prevented critical bugs before production through rigorous integration testing.
  • Managed end-to-end production deployment on Ubuntu with Nginx reverse proxy and PM2 process management; maintained 99.9% uptime during operation.
Mar 2025 – Jun 2025

IT Developer Intern

The Old Phuket Karon Beach Resort
  • Developed full-stack Applicant Tracking System (React, TypeScript) streamlining HR recruitment workflows; reduced hiring process duration by 40% and eliminated manual spreadsheet maintenance.
  • Built real-time event check-in platform using Google Apps Script and Sheets; managed operations for 200+ attendees per event with 98% data accuracy and zero downtime.
  • Resolved critical network and device issues across hotel systems; maintained ~99.5% operational uptime and reduced IT support tickets by 35% month-over-month.
Portfolio

Featured Projects

Smart Catfish Farm Management

Mission-critical production platform for aquaculture operations. Real-time monitoring, automated scheduling, and enterprise-grade deployment.

HR Recruitment Workflow System

End-to-end ATS replacing spreadsheet-based HR workflows. Multi-stage pipeline with role-based access and real-time status tracking.

Event Check-In Platform

Serverless real-time check-in for large hotel events. 200+ concurrent users, zero infrastructure cost, 98% data accuracy.

FurniShop E-Commerce Platform

Full-featured e-commerce platform with Omise payment integration, admin dashboard, and Firebase Auth.

DukeFarm Disease Analyzer

AI-powered livestock disease diagnostic platform with microservice architecture and ML inference via FastAPI.

Teaching Assistant — Python Programming

TA for 60+ undergraduate engineering students. Led lab sessions, code reviews, and mentoring on software engineering fundamentals.

Capabilities

Technical Expertise

⚛️
Frontend
ReactNext.jsViteTypeScriptJavaScriptTailwind CSSResponsive Design
📱
Mobile Development
FlutterDartReact NativeRiverpodAndroid DevelopmentMobile UI/UX
⚙️
Backend
Node.jsExpressNestJSFastAPIStrapiFirebaseGoogle Apps ScriptPHP
🗄️
Databases
PostgreSQLMySQLSQLiteMongoDBFirestoreRedisPrisma ORMGoogle Sheets
🚀
DevOps & Cloud
DockerKubernetesJenkinsGitHub ActionsVercelRenderAWSGCPUbuntu/Linux
🧠
AI / ML & Data
PythonRPyTorchTensorFlowOpenCVPandasNumPyScikit-LearnML Inference
✅
Testing & QA
JestPytestSwaggerReDocPlaywrightLocustPostmanSupertest
⚡
High-Performance Computing
C / C++CUDAOpenMPMPIApache SparkHadoopAnsibleSlurmCluster Computing
🔒
Systems & Security
Linux (Ubuntu)Nginx Reverse ProxyJWT AuthenticationOAuth2RBACMicroservicesDocker Security
Languages
Thai — NativeEnglish — Working Proficiency (TOEIC Mock ~800)
Qualifications

Academic Background

2022 – 2026

Bachelor of Engineering in Computer Engineering

Prince of Songkla University
GPA 3.38Second Class Honors
Relevant Coursework: Data Structures & Algorithms, Web Development, Software Development & Database Technologies, Mobile Application Development, Artificial Intelligence & Machine Learning, Data Analytics & Data Science, Statistics for Data Analysis, High-Performance Computing, Network Administration, Software Architecture, Embedded Systems and IoT.
2019 – 2022

High School Diploma in SMTE Program

Sadao Khanchai School
GPA 3.96Ranked 1st in the graduating class
Built a strong analytical foundation through an intensive Science, Mathematics, and Technology curriculum. Developed early interests in programming and logical problem-solving that led to pursuing Computer Engineering.
Contact

Get in Touch

I'm currently seeking full-stack and backend engineering roles where I can architect robust systems and deliver meaningful impact. Whether you have an opportunity or just want to connect, my inbox is always open.

✉
Email Me Atr.kulpatrakorn@gmail.com
📞 095-086-9626💻 GitHub💼 LinkedIn

Built with Next.js · Designed & coded by Ratchanon Kulpatrakorn · 2026