$ whoami
Ryan Medeiros
B.S.Comp Sci
7+Projects
2026Graduate
EN/PTBilingual

I'm a Computer Science graduate from UMass Dartmouth with a Cybersecurity concentration, currently working as a Technical Support Specialist at Connected Automotive Systems, where I troubleshoot software, hardware, and connectivity issues for automotive repair facilities and work closely with engineering to resolve escalated technical problems.

Outside of my day-to-day, I build secure applications and tools — from encryption simulators to AI-powered content platforms — and I'm especially interested in backend development, applied cybersecurity, and systems that have to work reliably for real users.

Off the keyboard, I'm into PC building, working on cars, and Lego — hobbies that all come back to the same thing: taking something apart to understand how it works, then making it work better.

$ cat work_history.log

B.S. in Computer Science — Cybersecurity Concentration

University of Massachusetts Dartmouth · College of Engineering, ABET Accredited · May 2025

Technical Support Specialist
Connected Automotive Systems
March 2026 — Present
Tier 2+ Support Networking System Config
  • Provide Tier 2+ remote technical support to automotive repair facilities, diagnosing software, hardware, connectivity, and configuration issues
  • Troubleshoot complex customer environments and assist with software implementation, delivering guidance via phone and remote support
  • Document incidents and identify root causes, collaborating with engineering teams to escalate and resolve advanced technical issues
Software Development Contractor
Rite-Solutions
Sept 2024 — April 2025
Python LangChain React Docker RAG
  • Collaborated with a development team to build a secure, fully air-gapped AI content generation application using open-source technologies
  • Implemented a dual-LLM architecture (Phi-4 and LLAMA 3.1) with a Python/LangChain backend using RAG for context-aware responses
  • Built a React frontend with full CRUD operations for Milvus vector database management; containerized the application with Docker
  • Delivered an MVP in December 2024 and the final product in April 2025
Customer Service Supervisor
Stop & Shop
May 2021 — March 2026
Leadership Troubleshooting
  • Led and supported a team of 10+ employees, delegating responsibilities and ensuring smooth day-to-day operations
  • Handled escalated customer issues, trained staff, and maintained operational efficiency in a high-volume retail environment
$ ls ./projects

Secure Chat Simulator

A desktop application simulating secure two-user communication using hybrid RSA and AES encryption, with attacker modules simulating confidentiality, integrity, and availability threats, and detailed logging for forensic tracking.

Python RSA AES Tkinter

AntiPhish Email Security Tool

A Python tool that analyzes .eml files to detect phishing characteristics, with a risk-scoring system evaluating suspicious content, link mismatches, domain patterns, and IP-based URLs through a simple Tkinter GUI.

Python BeautifulSoup Tkinter

ByteLock File Encryption Tool

A command-line file encryption and decryption tool written in C# providing AES-256 encryption with SHA256 checksums for integrity verification, supporting any file type for personal data protection.

C# .NET AES-256

AutoTrackr Vehicle Maintenance

A local Python application for tracking vehicle maintenance records, with vehicle management, cost-tracked maintenance logging, and a CustomTkinter GUI alongside a CLI interface.

Python CustomTkinter JSON

Gas Saver Mobile App

A React Native mobile app for tracking fuel efficiency and trip history, with MPG calculations, local-storage trip management, and planned OBD-II device integration, built with Expo for cross-platform deployment.

React Native Expo

Portfolio Website

This site — a responsive portfolio built with vanilla HTML, CSS, and JavaScript, featuring a dark theme with terminal-inspired accents, smooth section transitions, and a fully mobile-optimized layout.

HTML5 CSS3 JavaScript
$ cat skills.json

Languages

Python
Java
C#
C
C++
JavaScript
SQL

Frameworks

React
Node.js
.NET
LangChain
Tkinter

Tools

Git & GitHub
Docker
Visual Studio / VS Code
Linux
Windows

IT & Support

Tier 2 Technical Support
Remote Troubleshooting
Networking (TCP/IP, DNS, VPN)
System Configuration
Hardware Diagnostics
Software Deployment

Cybersecurity

RSA Encryption
AES Encryption
Digital Forensics
Network Security
Secure Development
$ contact --info

I'm currently working as a Technical Support Specialist at Connected Automotive Systems and always open to connecting on new projects, interesting problems, or opportunities in software development and cybersecurity. Feel free to reach out.