John Mark Delima

  • Mobile Developer
  • Full-Stack Developer
  • AI Engineer

© 2026 John Mark Delima | Cross-Platform Mobile Developer. All rights reserved.

ABOUT ME

I am a Full-Stack Developer specializing in building high-performance web and cross-platform mobile applications. With strong expertise in React Native, Next.js, and TypeScript, I take pride in owning products end-to-end—from database architecture and API integration to crafting clean, engaging user interfaces.

I actively leverage modern AI development tools to write scalable code and ship production-ready software efficiently.

When I’m not coding, I enjoy gardening, inline skating, and solving word games.

EXPERIENCES

Bugtong Cryptic

Bugtong Cryptic

Creator & Lead Developer

Dec 2025 - Present

  • Created and scaled a localized cross-platform mobile cryptic puzzle app using Expo, React Native, TypeScript, NativeWind, and Supabase.
  • Scaled the product to 5,000+ downloads and maintain 2,500+ Daily Active Users (DAU).
  • Executed a cross-platform organic marketing strategy on TikTok and Instagram, driving 180,000+ interactions for zero-cost user acquisition.
  • Designed a custom internal admin dashboard to manage user-generated content and streamlined the bug-reporting pipeline.
Dance Vision

Dance Vision

Software Engineer

Dec 2023 - Dec 2024

  • Maintained and extended cross-platform mobile and web applications using Expo, React Native, Next.js, and TypeScript.
  • Designed and implemented an AI-driven chatbot prototype leveraging OpenAI’s Assistant API.
  • Built and optimized system backends with Django’s DRF, delivering high-performance RESTful APIs.

PROJECTS

Bugtong Cryptic

Bugtong Cryptic

A cross-platform mobile application featuring localized Filipino cryptic puzzles. Available on the Google Play Store and web.

Expo
React Native
TypeScript
NativeWind
Bugtong Cryptic
Walwal Cards

Walwal Cards

A mobile party and drinking card game featuring multiple themed decks. Built with Expo React Native, NativeWind, and Supabase.

Expo
React Native
TypeScript
NativeWind
Walwal Cards
Waldas Simulation

Waldas Simulation

A satirical, educational simulation that visualizes the immense net worth of Philippine politicians by letting you "shop" with their funds.

Vite
TypeScript
TailwindCSS
Waldas Simulation
CrosswordAI

CrosswordAI

An AI program that generates crossword puzzles, using a constraint satisfaction problem model with node consistency, arc consistency, and backtracking search.

Python
Pillow
CrosswordAI

EDUCATION

Rinconada State College

Bachelor of Engineering Technology Major in Electronics

Rinconada State College

  • Cum Laude
Harvard University

CS50's Introduction to Artificial Intelligence with Python

Harvard University

Oct 2024

  • Acquired concepts and algorithms at the foundation of modern artificial intelligence including neural networks, computer vision, and NLP.
    • Show credential
Harvard University

CS50's Web Programming with Python and JavaScript

Harvard University

Sept 2023

  • Implemented web apps with Python, JavaScript, and SQL using frameworks like Django, React, and Bootstrap.
    • Show credential
Harvard University

CS50x: Introduction to Computer Science

Harvard University

Sept 2022

  • Learned a broad and robust understanding of computer science and programming. Successfully built complex webpages and web application using various programming languages.
    • Show credential

TECHNOLOGIES

TypeScript

React Native & Expo

JavaScript

Python

Next.js

Tailwind CSS & NativeWind

Node.js

Django

Docker

Golang

BLOGS

My Beloved Strawberries

2024-10-18

I just want to share my strawberry patch, which is uncommon here in the Phillipines

Hello World - My First Experience Coding

2020-06-18

My first post on my new blog.

CONTACT

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