John Daniel
De Castro
About
I'm a passionate full stack developer with a strong interest in cloud infrastructure and system design. I graduated with a Bachelor of Science in Information Technology from the University of Santo Tomas, where I built a foundation in software engineering through leadership roles and hands-on technical experience.
My experience spans multiple roles and technologiesāassociate sofware engineer at Accenture, backend development at Asceoft, frontend engineering at TomasinoWeb, and technical leadership in academic and personal projects. I've led system design initiatives, built scalable RESTful APIs, and delivered full-stack applications using TypeScript, Java, C#, React, Angular, and Spring Boot. I'm also AWS and Azure certified, reflecting my commitment to continuous learning and cloud expertise.
Certifications
Microsoft Certified: Azure Fundamentals
Microsoft
Issued: December 2025
AWS Certified Cloud Practitioner
Amazon Web Services (AWS)
Issued: August 2025
Expires: August 2028
Experience
Accenture
September 2025 - August 2026
Undergone full-stack training, worked with SharePoint migrations (on-prem to online), and supported an internal application for a utility company in the US.
I got my Azure Fundamentals certificate here.
Position
Packaged App Development Associate
Location
Hybrid @ Uptown, Taguig
Industry
IT Services, Consulting, and Outsourcing
Website
www.accenture.comAsceoft
February 2025 - May 2025
I served as a backend developer intern where I led the system design and implementation of an internal invoicing system and an ad management system. First time working with Agile. Adapted well with the tools already used in their projects. I really liked their codebase standards.
I loved our retros and activities here!
Position
Backend Developer Intern
Location
Hybrid @ Sampaloc, Manila
Industry
IT Services and Consulting
Website
www.asceoft.comTomasinoWeb
September 2023 - June 2025
I was a frontend developer in this organization. I learned a lot of React, Next.js, code standards, Github, and many more. It was challenging to balance academics and contribute to the codebase, but I had a lot of fun with these people.
Some Contributions

1 / 4
Projects
Felbel Check Writer
Personal Project
June 2025 - July 2025
full-stack
system-design
restful-apis
java
spring-boot
react

1 / 3
Writing numerous checks is a chore for the employees of Felbel Trading Corporation. I created a React + Spring Boot app that solves this through check management, payee management, and check printing.
Crossy Road Clone
Personal Project
June 2025
game-development
three.js
I created a simple 3D web game to explore Three.js, and game development concepts. A clone of the popular game, Crossy Road. š
Grocy
Personal Project
October 2024 - November 2024
full-stack
system-design
devops
docker
restful-apis
react
laravel

1 / 4
Managing your nutrition gets a little hard sometimes. Especially when going to the grocery store and thinking about how much of these and that should be bought for the whole week/month.
I created Grocy to help users create their recipes, and craft out grocery lists based on the recipes they add. They can also tweak how many sets of recipes they will cook, and the application will intelligently summarize everything in a single list.
Thomsight
Capstone Project
June 2024 - December 2024
system-deployment
frontend
react
state-management

CICS students had a hard time getting an internship opportunity. We created Thomsight to create a platform where students, company representatives, and alumni communicate and share their experiences to help guide students in picking their dream company.
Coursescape
Software Engineering
August 2023 - May 2024
leadership
technical-documentation
aws-ec2
full-stack
nextjs
nodejs
figma

The business owner of Coursescape near Dapitan St. wanted an application to manage their customer logs, reservations, and business performance reports.
This was also the first time I've developed an application of this complexity, and take on a role of a "senior engineer" who oversees the development. Along the way, I learned about technical documentations and how to design a system.
GwaCalc
Computer Programming II - Object-Oriented
May 2022 - June 2022
collaboration
ui-ux
github
java
java-swing
oop

1 / 4
This project has a special place in my heart. It was the first collaboration project I have done on Github. Designing was done on Figma. I learned event handling, exception handling, local packages/packaging, basic filesytem interaction, and a lot of OOP.
Skills
Core: OOP, System Architecture & Design, REST API Development, System Administration, Cloud Computing, DevOps
Languages: TypeScript/JavaScript, Java, C#, SQL, Python
Frameworks: Angular, Spring Boot, React, ASP.NET, Laravel
Tools: Linux, Docker, AWS, Azure, Git, Github, SQL Server