Turning
Curiosity
Into Code.

Statue Logo

. . . zenn*

* zenn /zɛn/ (n.) — one who builds for real conditions, not ideal ones.

/Contact

/ABOUT THIS SITE

Built solo with Tailwind CSS. Still sharpening the edges —
this site is as much a work in progress as I am.

Designed and developed by Justine Lawrence Coronel.

Built with passion and curiosity.

Hey!

Design & Dev by Justine, a developer based in Cavite, currently part of Cavite State University.

this-is-justine.jpg
Justine Lawrence Coronel
(02)

I am a Full-Stack developer and Computer Science student with a growing focus on cybersecurity — particularly secure system design, authentication, and access control. My work also spans back-end database performance and strict, accessible front-end experiences, all built with security as a core consideration rather than an afterthought.

A responsive full-stack restaurant administration POS system featuring live sales metrics and roles-based access control.

Key Contributions
  • Built a responsive web dashboard utilizing HTML5, CSS3, and Firebase to streamline food orders, real-time client status, and kitchen inventories.
  • Integrated Firestore NoSQL database to engineer instant data syncing across client tablets and staff terminal devices.
  • Designed robust database access rules for security and live stock alerting updates.
HTML5 CSS3 Vanilla JS Firebase Auth Firestore NoSQL
Ramenila Operational Dashboard
Ramenila Dashboard Preview

A mobile-first educational app designed to gamify digital health, recovery logging, and digital footprint assessments.

Key Contributions
  • Built dynamic, mobile-first pages with raw CSS Grid/Flexbox layouts targeting screen contrast.
  • Gamified diagnostic assessments and daily screen-time logs to encourage recovery habits.
  • Complied with WCAG 2.1 AA accessibility regulations for readability, keyboard support, and contrast.
HTML5 CSS Grid Vanilla JS Accessibility Dark UI
DigiSelf Wellness App
DigiSelf Dashboard Preview

An advanced operational layout and UI prototype conceptualized for student card administrative management.

Key Contributions
  • Conceptualized the operational model and dashboard parameters for student card verification.
  • Engineered a high-fidelity dashboard prototype to validate admin approval tasks and card status states.
  • Optimized user transaction structures, lowering click counts for account registrations.
UI Architecture NFC e-Wallet Prototyping Figma Workflow
CvSUKey NFC e-Wallet Admin Dashboard
CvSUKey Dashboard Preview

An interactive sorting visualizer developed in Next.js to demonstrate algorithm speeds and side-by-side performance benchmarks.

Key Contributions
  • Engineered a Canvas API-based visualizer window for Bubble and Quick Sort calculations.
  • Configured parallel arrays to highlight processing differences on identical datasets.
  • Incorporated custom playback controls (playback speed, list size) for user evaluation.
Next.js TypeScript Canvas API Framer Motion Benchmarking
Sorting Algorithms Visualizer
Sorting Algorithms Visualizer Preview
(03)

Currently studying Computer Science at Cavite State University - Imus Campus. My focus spans backend database integration, accessible frontend development, API design, and a growing interest in security-first engineering — building applications that scale nicely across modern platforms.

Firestore Integration

Configuring database schemas, managing authorization rules, and structuring operations using Firestore.

Accessibility Standards

Designing dark-themed layouts that meet WCAG 2.1 AA standards for color contrast and full keyboard navigation.

REST API Design

Designing and consuming RESTful APIs to connect frontend interfaces with backend services efficiently.

Security-First Practices

Applying secure coding practices in authentication, data validation, and access control — with a growing focus on cybersecurity.

Tech Stack

JavaScript Python Java HTML5 / CSS3 Firebase NoSQL Git & GitHub Tailwind CSS Arduino & Hardware
Conduent PH Dec 2025 - June 2026

Customer Experience Associate I

  • Primary point of contact handling client accounts, offering solution-driven user support across multiple platforms.
  • Guided end-users through digital benefits platforms, validating records accurately inside system rules.
  • Collaborated with internal teams to troubleshoot software system concerns and verify updates.
Telus Digital June 2026 - August 2026

IT Technical Support Intern

  • Primary point of contact for end-user technical issues, providing first-line support across hardware, software, and connectivity concerns.
  • Guided users through troubleshooting steps remotely, resolving issues accurately while following internal support protocols.
  • Collaborated with senior IT staff to escalate complex tickets, ensuring timely resolution and clear documentation of recurring issues.

Let's build something.

I'm always open to new opportunities, collaborations, and discussions about full-stack development, design systems, or tech.

Get in touch →