I'm a System Developer focused on building robust backend systems and clean user interfaces. I enjoy solving complex problems through structured code, aiming for scalability and exploring the latest in Web technologies.
- Languages: PHP(CI), JavaScript, HTML/CSS, TypeScript, React, Java
- Frameworks: NestJS, Laravel, NextJS, CodeIgniter, Spring Boot
- Tools: Git, Docker, Git Fork, Docusaurus, Postman API, Mermaid, Dbeaver
- Database: MySQL, PostgreSQL
- Deployment/DevOps Tools: Render, Supabase, Vercel, Netlify
- ✅ Currently working on backend API with nestjs and prisma with postgres.
- ✅ Currently learning typescript, graphql, and orm's.
- ✅ Building new projects with free tier deployments to showcase my experience not just by development but also handling deployments with CI/CD feature, and to add live Demo.
- ✅ Updating my new personal portfolio and converting it into CMS portfolio approach.
- ✅ Continuous updates and improvements on my deployed and on going development projects utilizing different resources and tech stack for self development.
- ✅ Planned to work on my first Laravel Projects and to add live Demo for portfoliio purposes.
- ✅ Successfully deployed my freelanced Laravel Web projects to Render, migrated from MySQL to PostgreSQL on Supabase
- ✅ Completed my portfolio blog cms phase
- ✅ Completed my portfolio to transition to CMS type portfolio to implement content control
- ✅ Added 0auth authentication for user and admin, only user that are invited for testimonies can be authenticated since records and details about the testimony are needed for the testimonies section
- ✅ Invited user, peers and colleagues will receive mail coming from me the admin and after giving testimony the admin will verify and check if the testimony is appropriate and then it will be approved and will be displayed, rejected testimonies from users will also recieve mails about the status of their testimony
- ☐ Upskilling my ERP experience and knowledge with Java language on Spring boot framework and also exploring Python language to further expand my experience by building intentional projects
- ☐ Building intentional projects with Spring boot using IntelliJ IDE, currently working with CRUD applications and diving through JWT authentications with RBAC implemented
- ☐ Continous updates and improvements in my CMS Portfolio
- ☐ To build react native mobile application for my laravel web projects
- ☐ To build chatbot or chat messaging app that can be integrated with my portfolio CMS later
- ☐ To build task management application
- ☐ To build tools and automate scripts that everyone can use
These cards update automatically based on my activity across all my repositories.
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- 👨🏻💻 Portfolio with personal platform: This project originally was planned to be a monorepo with documentation on docusaurus and web app portfolio with next js and both will be deployed through vercel separately, but as ideas come along I am planning to expand this to a personal platform.
- Update: I'm planning to add new feature to this project and turning this into a CMS type portfolio approach, I will be starting first in the Blog Page/Section where I will be documenting all my recent updates and additionals of features and the things I am currently working on which I think will be useful for me.
- Live Application: https://erzan-dev.vercel.app/
- Live Documentation Platform: https://erzan-docs.vercel.app/
- 🛒 ShopStack — Marketplace Management and Inventory System: This project is build with NestJS on the backend and NextJS on the frontend it is still in development, planning to add a proper documentation. This is suppose to be an ERP inventory commerce type of a system since scalability with NestJS is not a problem. I intended to use Next.JS since it is popular and can be deployed through vercel as a demo app.
- Update: As planned the frontend should be deployed with vercel but I choose to work it out with Netlify to test the waters here and to check how it differs from vercel deployments and for me to experience it firsthand. The backend service for this project is deployed using Render and the Database Management (PostgreSQL) I used Supabase.
- Live Application: https://shopstack-commerce.netlify.app/
- Live Backend Service: https://marketplace-management-inventory-system.onrender.com
- 🏗️ ERP API Project: This project is a NestJS Enterprise API Project that I myself develop and it is now and ongoing project for my current employer consisting with subsystems inside a company, it highlights my understanding and experience on Scalablity, Prisma ORM, Security/JWT/COOKIES, and utilizing Swagger UI API. Deployments via Render and Supabase.
- Live Backend Service: https://erp-api-rp7t.onrender.com/
- 🐮 Livestock Tagging & Profiling Management System: Livestock Tagging and Profiling Management System Using Wireless Technology is a web-based application built with Laravel. It helps streamline livestock management by providing a paperless, efficient, and accurate system for tracking animal records. Deployments via Render for Laravel App and PostgresDB. This project was a freelance project.
- Update: I just recently migrated from MySQL to PostgreSQL for this project, to further develop and enhance my understanding with PostgreSQL. I just recently released the stable version of this application v1.0.0 and added new features and multiple bugs and errors fixed. I also enhanced the Readme file added brief and attention to detail guides for users interested using this project in the future, I also added changelog file to monitor changes per release.
- Live Application: https://ltpms-web.onrender.com
- 🏥 SLSU Clinic Management System: A Laravel-based web application designed to digitize and streamline the operations of the Southern Leyte State University (SLSU) Clinic. The system's goal is to replace the clinic's manual, paper-based workflow with a completely digital, paperless one. It makes it possible for university staff and students to schedule dental and medical appointments online, cutting down on wait times and doing away with the necessity for in-person booking. The system increases productivity for patients, clinic employees, physicians, and dentists by digitizing records and automating appointment scheduling. It unifies schedules, medical findings, services, and patient data into one easily accessible system. Overall, the project improves service delivery by streamlining clinic operations.
- Note: This project was also my Capstone Project back in college and my first freelance project, now I have decided to pick it up again same goes for my other projects that i have left out to add new updates and features and make them accessible via deployments.
- Update: I also migrated from MySQL to PostgreSQL for this project since I am using Supabase for database management and Render for running the Laravel Application online.
- Live Application: https://slsu-clinic-appointment-system.onrender.com
- ⛶ QCAMS – QR Code Attendance Management System: A Laravel-based QR Code Attendance Management System designed for students and faculty to easily record attendance during events through QR code scanning. QCAMS simplifies attendance tracking by replacing manual logs with a fast, secure, and contactless solution and this is also one of my Freelance Project.
- Live Web/Mobile Application: https://qr-code-attendance-management-system-1kwx.onrender.com
- 📧 Email: do.earljan@gmail.com
- 💼 LinkedIn: https://www.linkedin.com/in/earl-jan-do-303253194/
- 🌐 Portfolio: https://erzan12.github.io/Erzan12/
- 📖 Documentation Platform: https://erzan-docs.vercel.app/
- 🌐 PortfolioV2: https://erzan-dev.vercel.app/
“I aint perfect, I just keep on showing up”