John Daniel
De Castro
About
I'm a passionate full stack developer with a strong interest in cloud infrastructure and Linux systems. I recently graduated with a Bachelor of Science in Information Technology from the University of Santo Tomas, where I took on leadership and technical roles that shaped my foundation in software engineering.
My experience includes serving as a backend developer intern at Asceoft, a frontend developer at TomasinoWeb, and a technical lead in various academic and personal projects. I've also held leadership roles as class vice president and the Commission on Elections deputy for our department, reflecting my commitment to both technical and organizational excellence.
My long-term goal is to become a Chief Architect or Principal Engineer at a leading tech company—designing scalable systems, mentoring engineers, and driving impactful innovation.
Certifications
AWS Certified Cloud Practitioner
Amazon Web Services (AWS)
Issued: August 2025
Expires: August 2028
Experience
Accenture
September 2025 - Present
Achieved a 96.58% score in Application Development bootcamp covering SQL, C#, Web Technologies, and Azure. Engaged in a continuous technical upskilling program to enhance capabilities in Cloud First Development and Agentic AI.
Position
Associate Software Engineer
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. I designed the database schema, built secure and scalable RESTful APIs, and applied Agile methodologies to ensure timely delivery of all project milestones—often ahead of schedule. By fostering collaboration during the design phase, I helped improve overall team velocity and delivered a robust backend architecture that aligned with real business needs.
Position
Backend Developer Intern
Location
Hybrid @ Sampaloc, Manila
Industry
IT Services and Consulting
Website
www.asceoft.comTomasinoWeb
September 2023 - June 2025
I worked as a frontend developer, beginning with the successful completion of a full-featured blog application within one week as part of the technical onboarding. Over my term, I developed user interfaces using React and Next.js, streamlined API integration with backend teams to improve performance, and maintained detailed documentation for all development activity. This role honed my frontend engineering skills while reinforcing best practices in collaboration, maintainability, and performance optimization.
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. 🐔
Grocy
Personal Project
October 2024 - November 2024
full-stack
system-design
devops
docker
restful-apis
react
laravel

1 / 4
Managing your nutrition get a little hard sometimes. Especially when going to the grocery store, wondering how much of X and Ys you should buy to last you the week or the 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

As CICS students who 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.
Outside the Box
Software Engineering
August 2023 - May 2024
leadership
technical-documentation
aws-ec2
full-stack
nextjs
nodejs
figma

The business owner of Outside the Box 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
Languages: TypeScript/JavaScript, Java, C#, Python
Frameworks: Angular, Spring Boot, React, ASP.NET, Laravel
Tools: Linux, Docker, AWS, Azure, Git, Github