Hey, I'm

Samuel Diaz

Software Cybersecurity Data Science

Professional portrait of Samuel Diaz

About Me

I'm driven by continuous learning across software, cybersecurity, and data science. I continuously explore different areas of computing and enjoy understanding how systems work.

This portfolio highlights my professional experience, technical projects, education, and certifications as I continue growing throughout my career.

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Current focus

Currently

  • Working in enterprise and program cybersecurity as an Information Systems Security Officer.
  • Completing an MS in Information Systems expected December 2026.
  • Building AWS expertise and pursuing certification.

Technical Skills

  • Programming: Python, Java, SQL, JavaScript, C++, R, Bash, HTML, CSS, C#
  • Development: AI/ML, APIs, Agile, Docker, Git, GitLab, .NET, Jira, Confluence, React, VS Code, Jenkins CI/CD, SDLC
  • Data Science: Excel, Matplotlib, MySQL Workbench, Pandas, RStudio, NumPy, PyTorch, Scikit-learn
  • Cloud & Platforms: AWS, Google Cloud, macOS, RHEL 8, Ubuntu, Windows
  • Systems Engineering: Systems Architecture, Network and Data Flow Diagrams, Requirements Analysis, Configuration Management, System Integration Laboratory (SIL), Technical Writing
  • Cybersecurity: RMF, ATO, NIST SP 800-53, NIST SP 800-171, CMMC Level 2, DoD STIGs, SSPs, Governance

Professional Experience

Programs Management Analytics & Technologies (PMAT)

San Diego, CA

Information Systems Security Officer (ISSO) Mar 2026 – Present

Enterprise Cybersecurity

  • Supported CMMC Level 2 compliance by aligning cybersecurity policies with NIST SP 800-171.
  • Developed network and data flow diagrams for enterprise systems.

Ship Self Defense System (SSDS)

  • Conducted 300+ RMF security control assessments.
  • Identified and coordinated remediation of 20+ security deficiencies.

Software Engineer May 2023 – Mar 2026

Ship Self Defense System (SSDS)

  • Maintained combat system software for the Navy’s Ship Self Defense System.
  • Resolved 20+ software defects through debugging and root cause analysis.
  • Integrated 30+ code merges across multiple software baselines.

Credentials

Education

  • MS, Information Systems
    Graduate Certificate in Data Science
    San Diego State University
  • BS, Computer Science
    Western Governors University
  • BSBA, Information Systems
    San Diego State University

Certificates

  • Google Cloud Computing Foundations
    Google Cloud
  • CompTIA Security+
    CompTIA
  • Linux Essentials
    Linux Professional Institute

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Projects

Resume Role Analyzer AI

Built an AI/ML platform that analyzes resumes and recommends five matching career paths using normalized skills and O*NET occupation data.

Tech: Python • MiniLM • ASP.NET Core • C# • JavaScript • Docker

Source Code

AWS Cloud Portfolio Website

Designed, developed, and deployed a personal portfolio website on AWS with secure cloud configuration.

Tech: HTML • CSS • Amazon S3 • CloudFront • Route 53 • IAM • CloudTrail

Source Code

Package Delivery Route Optimization System

Developed a Python application implementing the nearest neighbor algorithm to optimize package delivery routes.

Tech: Python • Algorithms • Data Structures • Optimization

Source Code

Customer Appointment Management System

Developed a JavaFX desktop application with MySQL integration to manage customers, appointments, time zones, and scheduling conflicts.

Tech: Java • JavaFX • MySQL • JDBC • SQL

Source Code

Customer Relationship Management System Design

Designed a customer relationship management (CRM) system by developing software requirements, UML models, and system design documentation.

Tech: UML • SDLC • Systems Analysis • Software Design

Source Code

Relational Database Design & SQL Development

Designed and implemented normalized relational databases while developing SQL queries to support business reporting and data management.

Tech: MySQL • SQL • ER Modeling • Database Design • Normalization

Source Code
View GitHub Profile

Let’s Connect

Thanks for taking the time to explore my portfolio. For professional opportunities, feel free to reach out.

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