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Peter Roumeliotis

Peter
Roumeliotis

Cybersecurity Professional & Full-Stack Developer building secure, intelligent systems.

Cybersecurity & DFIR Investigative Analyst | Web Developer @ T&M USA

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About Me

Securing Systems.
Building Solutions.

I hold a B.S. and M.S. in Computer Science (with a focus in Data Science and Artificial Intelligence) from St. John's University. With a passion for cybersecurity, digital forensics, and full-stack development, I bring a unique blend of security expertise and software engineering skill to every project.

Currently working as a Cybersecurity & DFIR Investigative Analyst and Web Developer at T&M USA, I specialize in incident response, threat analysis, and building secure web applications. My experience spans from working alongside the FBI at InfraGard to developing production applications with modern frameworks.

Trilingual in English, Greek, and Spanish — I thrive in diverse, collaborative environments and bring strong communication skills to technical teams.

3
Certifications
M.S.
Computer Science
3
Languages Spoken
4+
Years Experience
Career

Experience

CURRENT POSITION
Cybersecurity & DFIR Investigative Analyst | Web Developer
T&M USA
  • Conducting digital forensics and incident response investigations
  • Developing and maintaining secure web applications
  • Analyzing threats and implementing security measures
AUG 2024 — OCT 2024
Website Developer
Women in Cyber Leadership
  • Developed the organization's website and presented progress weekly
  • Built their LinkedIn presence by creating a group, assigning roles, and creating posts
MAY 2024 — OCT 2024
Cyber Security Intern
New York Metro InfraGard
  • Participated in weekly events with critical infrastructure owners, operators, and the FBI
  • Gave presentations on critical vulnerabilities and threats to national infrastructure
  • Analyzed risk management, frameworks, threat vectors, and network security
  • Edited podcasts and created marketing materials targeting the cybersecurity sector
JUL 2022 — AUG 2022
Software Engineer
CTS Logistics
  • Built an asset/inventory tracking system with Java using arrays and GUIs
  • Managed statistics and package data in MySQL as a database administrator
  • Presented work to the company on how to utilize the tracking system
Work

Projects

🔐
Electronic Health Record System
St. John's University · CUS 1156 · Software Design Methods
A comprehensive EHR system tracking patient admissions and discharges with enforced access controls, IAM management, and segregation of duties. Features a patient portal with medications and doctor's notes.
IAM Database Security Java
📱
Phi Delt Connect
St. John's University · CUS 742 · Mobile App Development
An iOS social networking app built with SwiftUI and Firebase featuring real-time data, user auth, dynamic post feeds, comments, likes, follow/unfollow, personalized "For You" tab, and integrated search.
SwiftUI Firebase iOS Real-time
🔥
AI Fire & Smoke Detection
Research Project · Computer Vision · Deep Learning
A deep learning research project comparing a custom CNN and fine-tuned YOLOv8 Nano for real-time wildfire detection. Features Grad-CAM visualizations, video processing with detection overlays, and side-by-side model comparison.
TensorFlow YOLOv8 Computer Vision Python
🏥
SJU Health Center System
St. John's University · CUS 1166 · Software Engineering
A Java desktop application for managing patient healthcare records, appointments, and billing. Features separate patient and employee portals with role-based access control, appointment scheduling, and medical records management.
Java MySQL Java Swing JDBC
📈
Stock Price Forecasting
St. John's University · AI in Finance · Capstone Project
A comprehensive comparison of ARIMA, LSTM, and GRU models for stock price prediction across three market sectors. Neural networks achieved 64-82% RMSE reduction over classical models, with GRU emerging as the best balance of accuracy and efficiency.
LSTM ARIMA Python Time Series
🐾
Critter Simulation
St. John's University · Java · Simulation
A grid-based animal simulation where 125 critters with unique movement patterns roam a wrapping 100x50 world and compete for survival through collisions. Features a real-time Swing GUI with start, stop, and step controls.
Java Java Swing OOP Simulation
Expertise

Skills & Technologies

💻 Languages
Java JavaScript Python C++ Swift Scala SQL PHP
⚡ Frameworks & Tools
React Node.js Next.js Flask SwiftUI Firebase MySQL Laravel Vue.js Bootstrap Tailwind CSS jQuery Chart.js TensorFlow Keras Java Swing JDBC
🛡️ Security
Cybersecurity DFIR IAM / Access Controls Vulnerability Mgmt Threat Analysis Risk Management
☁️ Cloud & AI
AWS Cloud Computing Machine Learning LLMs CNNs Computer Vision YOLOv8 LSTMs Time Series APIs MCPs
🤝 Professional
Public Speaking Leadership Data Analysis Collaboration Law Enforcement Liaison Trilingual
Credentials

Certifications

☁️
AWS Certified Cloud Practitioner
Amazon Web Services
🏗️
AWS Solutions Architect – Associate
Amazon Web Services
🔍
Cellebrite CCPA Certified
Cellebrite

Let's Connect

I'm always open to a great conversation about cybersecurity, software development, or anything in between. Let's connect.

proumeliotis07@gmail.com LinkedIn GitHub