Christopher Marcellus

Graduate of Hofstra University (B.A. Computer Science)

Full-Stack Developer

Building clean, modern web apps with strong fundamentals.

Security-aware mindset

Interested in secure, scalable software and great user experiences.

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About Me

I’m a graduate of Hofstra University with a Bachelor’s degree in Computer Science and hands-on experience building modern web and mobile applications. I enjoy creating clean, user-focused interfaces backed by solid logic and real-world functionality.

My background spans frontend frameworks like React, Next.js, and Angular, along with APIs, databases, and cybersecurity fundamentals. I’m especially interested in building secure, scalable software and continuing to grow as a full-stack developer.

Experience

Software Engineering Intern — AlphaPrimeTech

New York, NY • Summer 2024

  • Collaborated on software development tasks involving frontend and backend components in a professional engineering environment.
  • Assisted with debugging, feature implementation, and improving application functionality.
  • Gained experience working with real-world codebases, version control, and team-based development workflows.

Code Coach — TheCoderSchool

Teaching & Mentorship Role

  • Taught students programming fundamentals using Python, Scratch, Roblox Lua, Java, and web technologies.
  • Designed interactive projects and games to reinforce concepts such as loops, functions, classes, and problem-solving.
  • Mentored students one-on-one and in small groups, adapting lessons to different learning styles and skill levels.

Projects

A few projects that show my skills across web, mobile, and algorithms.

Angular Housing Location Website

AngularTypeScriptHTML/CSS

Built a housing listings site with clean UI, reusable components, and filtering/search to quickly find locations.

  • Component-based architecture
  • Filtering + responsive layout
  • Clean routing and UI structure
GitHub →

React Native Trivia Quiz App (API)

React NativeJavaScriptREST API

Mobile trivia app that pulls questions from an API, tracks score, and provides instant feedback with smooth UX.

  • API-driven questions
  • Score tracking + game flow
  • Mobile-first UI
GitHub →

Personal Budget Tracker App

JavaScriptHTML/CSSLocal Storage

Built a personal finance app that allows users to track income and expenses, view balances, and manage spending over time.

  • Add, edit, and delete income & expense entries
  • Persistent data storage using browser local storage
  • Real-time balance and category breakdown
GitHub →

Skills

Technologies and tools I’ve used across projects, coursework, and certifications.

Frontend

  • React & Next.js
  • Angular
  • HTML, CSS, Tailwind CSS
  • Responsive UI & component-based design

Backend

  • Node.js & Express
  • REST APIs
  • Server-side routing & logic

Databases

  • MongoDB
  • SQL
  • Local Storage (client-side persistence)
  • Python Flask

Programming

  • JavaScript (ES6+)
  • TypeScript
  • Java
  • Object-Oriented Programming (OOP)

Cybersecurity

  • Security fundamentals & risk management
  • Linux & command-line basics
  • SIEM concepts & incident response

Tools

  • Git & GitHub
  • VS Code
  • npm & package management

Tech Stack

Technologies I’ve used across projects, coursework, and professional experience.

React
Angular
Node.js
Tailwind
MongoDB
Git
GitHub
HTML
CSS

Languages

JavaScript
TypeScript
Python
Java
C++

Certifications

Google Cybersecurity Professional Certificate

View Credential →

Issued by Google via Coursera

  • Security fundamentals & risk management
  • Network security, Linux, and SQL
  • SIEM tools, incident response, and threat analysis

Cyber Security Certifications

View Credential →

Issued by W3Schools

  • HTML & CSS fundamentals
  • JavaScript programming
  • SQL & database basics
  • Web accessibility & best practices

Contact

Email: Christopherjm625@gmail.com