Worachat Paranya

WORACHAT PARANYA EDUCATION Khon Kaen University - College of Computing Bachelor of Science in Computer Science | Fourth-year undergraduate student Relevant Coursework: Web Programming & Application Development, Database Systems & Design, Software Engineering, System Analysis & Design, Cloud Computing & DevOps, Data Structures & Algorithms. Career Focus: Full Stack Developer (Modern Frontend | Backend Architecture | RESTful APIs & Cloud Deployment) INTERNSHIP EXPERIENCE Client-Centric Web Solutions: Developed and maintained responsive web applications and dynamic websites across diverse industries, translating custom client business requirements into functional, scalable digital solutions. Full-Stack Implementation: Engineered end-to-end features using modern frontend technologies and backend services, ensuring high performance, cross-browser responsiveness, and seamless user experiences. CMS & WordPress Customization: Built tailored WordPress solutions by developing custom themes, integrating plugins, and connecting REST APIs to deliver user-friendly content management systems for clients while optimizing site loading speed and SEO. Agile Delivery & Deployment: Collaborated closely with project managers and design teams to deliver multiple client projects on schedule, assisting with database configuration, debugging, and production deployments. The Business SEO Company Limited May 2026 - Jun 2026 Full-Stack Web Developer Intern PROJECT EXPERIENCE Role: Full-Stack Developer | Stack: React (Vite, TypeScript), NestJS, PostgreSQL, Prisma ORM, Docker, Tailwind CSS, Recharts Comprehensive Service Management: Designed and built an end-to-end motorcycle service-center web application to streamline vehicle intake, repair tracking, parts inventory, billing, and personnel workflows. Frontend & State Architecture: Developed an intuitive, responsive dashboard using React, TypeScript, and Tailwind CSS; implemented Context API and custom hooks for real-time service tracking and repair status workflows. Robust Backend & Security: Engineered a modular RESTful backend with NestJS and Prisma ORM on PostgreSQL; implemented Role-Based Access Control (RBAC) and JWT authentication to protect multi-role resources. Analytics & Containerization: Integrated Recharts for operational and revenue data visualization, documented APIs with Swagger, and containerized the system with Docker to ensure consistent development and deployment. Khon Kaen, Thailand • worachat.pa@kkumail.com • 082-881-4470 • Github • Portfolio May 2023 - Present Role: Full-Stack Developer | Stack: Next.js 14, FastAPI, PostgreSQL (pgvector), Redis, Sentence Transformers, Claude API, Docker Hybrid Recommendation Engine: Architected a hybrid recommendation system combining ALS collaborative filtering (automated scheduled retraining tracked via MLflow) and semantic content-based filtering. Semantic Search & Vector Storage: Generated high-dimensional embeddings using Sentence Transformers, stored in PostgreSQL with pgvector for cosine similarity matching; integrated Claude API to parse natural-language search queries into structured filters. Performance & Full-Stack Interface: Developed a modern, responsive UI using Next.js 14 App Router and Tailwind CSS; integrated Redis caching for frequently accessed recommendation results to minimize API latency. Role: Backend Developer | Stack: Java 21, Spring Boot 3.3, Spring Security, PostgreSQL 15, WebSocket (STOMP), Next.js 14, Docker Multi-Tier Role Management: Built a scalable RESTful API with Spring Boot 3.3 and Java 21 supporting Customers, Sellers, and Admin roles, secured via Spring Security and JWT-based RBAC. Real-Time Communication & Payment: Implemented real-time messaging and notifications between buyers and sellers using WebSocket (STOMP); integrated the Omise payment gateway (Credit/Debit, PromptPay) with secure payment webhooks. Commerce Lifecycle: Engineered core business logic for complex product variants, stock control, shopping carts, order tracking, and sales analytics dashboards containerized using Docker. Role: Mobile Developer | Stack: Flutter, Dart, Firebase (Auth, Realtime DB, FCM, Storage), Kotlin, State Management (Provider/Bloc) Cross-Platform Architecture: Built a full-featured cross-platform food ordering application with distinct customer and administrator workflows, utilizing Firebase Authentication for secure multi-role access control. Real-Time Tracking & Alerts: Implemented live order-status tracking synchronized across devices via Firebase Realtime Database, integrated with Firebase Cloud Messaging (FCM) for instant push notifications on delivery updates. Menu Management & Native Performance: Developed administrative interfaces for catalog management and order fulfillment, leveraging Kotlin to optimize native Android performance and platform-specific capabilities. TECHNICAL SKILLS Frontend: React.js, Next.js (App Router), TypeScript, JavaScript, Vite, Tailwind CSS, HTML5, CSS3, Context API, Zustand, Recharts Backend & APIs: Node.js, NestJS, Express.js, Java (Spring Boot), Python (FastAPI), RESTful APIs, Swagger/OpenAPI, WebSocket (STOMP) Databases & ORM: PostgreSQL, pgvector, MySQL, Prisma ORM, Spring Data JPA, Redis, Firebase, Supabase DevOps & Tools: Docker, Git, GitHub, Postman, Vercel, Railway, Linux, CI/CD (GitHub Actions) CMS & Others: WordPress (Custom Themes, Plugins & REST API), Role-Based Access Control (RBAC), JWT Authentication AI-Assisted Development: Cursor, Claude Code, GitHub Copilot, Codex Project 2: AI-Powered Product Recommendation Engine Mar 2026 - Jun 2026 Project 3: Enterprise E-commerce Platform & RESTful API Jun 2025 - Oct 2025 Project 4: Food Order App (Admin & Customer) Nov 2024 - Mar 2025 Project 1: Smart Moto Service Center Nov 2025 - Mar 2026