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I’m a full-stack engineer with 10+ years of experience building scalable web and mobile applications. I’ve worked with .NET, Node.js, React, React Native, and cloud services like AWS and Azure. I’ve built everything from banking apps, analytics dashboards, and SaaS platforms to Solana blockchain integrations and high-traffic video apps. I focus on clean architecture, performance, and delivering reliable features quickly. My strength is taking a project from idea to production—frontend, backend, database, and deployment—and communicating clearly throughout the process.…I’m a full-stack engineer with 10+ years of experience building scalable web and mobile applications. I’ve worked with .NET, Node.js, React, React Native, and cloud services like AWS and Azure. I’ve built everything from banking apps, analytics dashboards, and SaaS platforms to Solana blockchain integrations and high-traffic video apps. I focus on clean architecture, performance, and delivering reliable features quickly. My strength is taking a project from idea to production—frontend, backend, database, and deployment—and communicating clearly throughout the process.

John Paul De Guzman

Full Stack Developer, Web Developer, Back-End Developer, +2

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I’m a full-stack engineer with 10+ years of experience building scalable web and mobile applications. I’ve worked with .NET, Node.js, React, React Native, and cloud services like AWS and Azure. I’ve built everything from banking apps, analytics dashboards, and SaaS platforms to Solana blockchain integrations and high-traffic video apps. I focus on clean architecture, performance, and delivering reliable features quickly. My strength is taking a project from idea to production—frontend, backend, database, and deployment—and communicating clearly throughout the process.…I’m a full-stack engineer with 10+ years of experience building scalable web and mobile applications. I’ve worked with .NET, Node.js, React, React Native, and cloud services like AWS and Azure. I’ve built everything from banking apps, analytics dashboards, and SaaS platforms to Solana blockchain integrations and high-traffic video apps. I focus on clean architecture, performance, and delivering reliable features quickly. My strength is taking a project from idea to production—frontend, backend, database, and deployment—and communicating clearly throughout the process.

Available to hire

I’m a full-stack engineer with 10+ years of experience building scalable web and mobile applications. I’ve worked with .NET, Node.js, React, React Native, and cloud services like AWS and Azure.
I’ve built everything from banking apps, analytics dashboards, and SaaS platforms to Solana blockchain integrations and high-traffic video apps. I focus on clean architecture, performance, and delivering reliable features quickly.
My strength is taking a project from idea to production—frontend, backend, database, and deployment—and communicating clearly throughout the process.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Work Experience

Software Engineer at GCore Philippines

May 1, 2025 - May 1, 2025

Designed and implemented a cloud-based education platform backend using Node.js (Express) and a React (TypeScript) frontend for dynamic, responsive UIs. Architected microservices deployed on AKS with Docker-based containers, auto-scaling, and high availability. Built RESTful APIs and GraphQL endpoints for frontend integration and third-party services. Developed responsive components with Tailwind CSS and Redux Toolkit. Integrated real-time chat and notifications via WebSockets for interactive classroom experiences. Designed PostgreSQL schemas, migrations, and performance optimizations with indexing and Redis caching. Implemented secure authentication (JWT, OAuth2) and RBAC for multi-role access. Integrated Stripe/PayPal payments for subscriptions and transactions. Automated CI/CD with GitHub Actions and Terraform; monitored health with Azure Monitor and Application Insights. Led code reviews and emphasized TDD with Jest and React Testing Library.

Senior Full Stack Engineer at HDWEBSOFT Vietnam

September 1, 2023 - September 1, 2023

Led development of a team collaboration platform with a Node.js (NestJS) backend and a modern React frontend. Implemented RESTful and GraphQL APIs to provide flexible data access; enabled real-time updates via WebSockets and Apache Kafka. Designed PostgreSQL schemas with Redis caching and optimized queries. Implemented secure authentication using JWT, OAuth (Google/Microsoft), and RBAC for Admin, Manager, and User roles. Built reusable React components with TypeScript and Tailwind CSS. Implemented reporting dashboards and exportable analytics. Integrated Slack/Microsoft Teams notifications. Containerized apps with Docker and deployed to Azure App Services with GitHub Actions CI/CD. Wrote unit/integration tests with Jest, Cypress, and React Testing Library.

Junior Full Stack Engineer at HDWEBSOFT Vietnam

September 1, 2022 - September 1, 2022

Developed scalable B2B e-commerce APIs using Node.js (Express) and enhanced UI with React. Migrated legacy systems to a modular microservices architecture, enabling improved maintainability. Implemented RabbitMQ for asynchronous service communication. Exposed data via REST and GraphQL endpoints. Designed relational PostgreSQL databases with optimized queries. Modernized the frontend with React and Bootstrap for responsive UX. Automated deployments with Docker and Terraform for consistent environments. Deployed on Azure.

Software Engineer at Kyanon Digital

June 1, 2021 - June 1, 2021

Designed HR management system with Node.js (Express) backend and React frontend. Built RESTful APIs documented with Swagger for seamless integration. Designed PostgreSQL schemas and optimized queries. Implemented authentication using JWT. Deployed on AWS with Docker and Jenkins CI/CD. Enhanced UI with Material-UI for a clean, responsive interface.