Painting the sky

Jean
contact@jeancarlos.dev

Jean CarlosLin Lai

Software Engineer

Software engineer who ships things that hold up. Two years building mission-critical systems at Lockheed Martin. Starting at Deloitte this January.

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Experience

Lockheed Martin

Multi-Functional Engineer (CWEP), Orlando, Florida. December 2023 to December 2025.

  • Built dashboards, data visualizations, and reporting tools with Blazor, Radzen, C#, Node.js, and SQL, giving teams clearer data for their decisions.
  • Cut grid load times from about 3 seconds to under half a second with optimized queries, caching, and asynchronous UI rendering.
  • Automated manual data-entry workflows, saving management teams 15+ hours a week.
  • Built a transaction log that records read and write activity, giving compliance reviews a full audit trail.
  • Built Excel and PowerPoint export tools that automate reporting, saving analysts and managers up to 10 hours a week.
  • Fixed API logic so information displays accurately across workflows.
  • Ran Agile Scrum ceremonies (sprint planning, stand-ups, retrospectives) for a cross-functional team of 5 to 7.
  • C#
  • Blazor
  • Radzen
  • SQL Server
  • Node.js
  • REST APIs

Projects

Each moon orbiting this planet is one of these builds. Hover a project to find its moon, or click a moon to jump to it.

Serpentine

Sep 2025

ShellHacks hackathon, Miami. A two-player territory game on a 16×16 LED matrix.

  • Programmed the game in C++ on an Arduino R4 WiFi, with debounced hardware inputs, serpentine LED addressing, and a non-blocking loop for capture, scoring, and win detection.
  • Built an HTML, CSS, and JavaScript web view that mirrors the LED board in real time.
  • Added a start screen, timer, and power-ups.
  • C++
  • Arduino
  • WS2812B
  • JavaScript

Psycall

Jan to Aug 2025

Back-end developer on a medical scheduling app for a PA sponsor, Orlando, built with ASP.NET, C#, and MySQL.

  • Built an automated scheduler for psychiatry and medicine residents (PGY1 to PGY3) that cuts schedule creation from weeks to under a minute.
  • Wrote max-flow and randomized-distribution algorithms that balance shifts and prevent overscheduling.
  • Built REST APIs over MySQL for resident data, shift assignments, and reporting, plus a swap-and-edit feature for real-time shift changes.
  • ASP.NET
  • C#
  • EF Core
  • MySQL
  • REST APIs

Umbra

Jan to Apr 2025

A 2D puzzle game built in Unity.

  • Built the “Shadow Form” mechanic with custom collision layers, Shader Graph translucency, and 2D physics overrides so the hero can phase through walls and slip past enemies.
  • Designed enemy AI with pathfinding, line-of-sight checks, and behavior trees for patrols and pursuit.
  • Wrote reusable, testable C# modules on ScriptableObjects.
  • Unity
  • C#
  • Shader Graph

Fusian

Aug to Dec 2024

Full-stack developer for an Orlando car club.

  • Designed and built a promotional website to grow the club's visibility and engagement.
  • Shipped event registration, a gallery, and contact forms with the team, meeting every deadline.
  • JavaScript
  • Material UI
  • Git

Travel Itinerary

Dec 2023

An AI trip planner that writes schedules for you.

  • Built a React, Tailwind, and Python app that uses the OpenAI API with custom prompts to generate tailored schedules.
  • Handled asynchronous API calls with Axios and rendered the structured JSON schedules on the front end.
  • Set up CI/CD through GitHub for the Node.js deployments.
  • React
  • Tailwind
  • Python
  • OpenAI API

Skills

Languages
  • C#
  • C
  • C++
  • Python
  • Java
  • JavaScript
  • SQL
  • CSS
Frameworks and libraries
  • React
  • Node.js
  • Express.js
  • Blazor
  • .NET
  • Unity
  • Arduino
Tools
  • SQL Server Management Studio
  • MySQL
  • MongoDB
  • Git
  • Jira
  • Postman
  • Agile Scrum
Coursework

Object-Oriented Programming, Data Structures and Algorithms, Algorithms in Machine Learning, Artificial Intelligence, Operating Systems, Security in Computing, Computer Logic and Organization, Systems Software, UI/UX Design, Discrete Mathematics.

Clearance and education

Secret clearance

U.S. security clearance at the Secret level.

University of Central Florida

B.S. Computer Science, August 2023 to December 2025.

Valencia College

Associate in Arts, August 2021 to April 2023.

AWS Academy Graduate

Cloud Security Foundations certification.

Off the keyboard

Brazilian Jiu-Jitsu blue belt.

Get in touch

Send an email LinkedIn Return to Earth