whoami

Antonio Martinez III

Software Engineer

Hey, I’m Antonio. I work across backend services, developer infrastructure, and embedded systems, with a focus on security and reliability.

history --work

Trane Technologies [CURRENT]

Software Engineer · Indiana

Building CI/CD infrastructure and automated test workflows from the ground up. Driving embedded cybersecurity efforts and developing monitoring and control systems for medical-grade refrigeration, spanning access control, temperature sensing, and networking.

Bank of America

Software Engineer · 2024–2026 · Plano, Texas

Built Java and Spring services for authentication and SSO, including JWT token lifecycle management. Drove mobile driver’s license development, presenting proof-of-concept demos to leadership that led to funded follow-on work. Also worked on API modernization and backend performance.

Bank of America

Software Engineer Intern · Summer 2023 · Plano, Texas

Developed C#/.NET REST APIs and remediated security vulnerabilities in internal applications.

Rocket Mortgage

Software Engineer Intern · Summer 2022 · Detroit, Michigan

Built CI/CD pipelines for automation teams, streamlining delivery of containerized services on AWS. Also developed analytics dashboards and data pipelines with Angular, Python, and SQL.

ls ~/workbench/

Things I wanted to exist and problems worth tinkering with. Some practical, some just for fun.

diiggy.dev [ACTIVE]

This little corner of the web. Plain HTML, CSS, and JavaScript, styled like the terminal I spend too much time in.

bldbadge.com (opens in a new tab) [ACTIVE]

A home for car builds: scan a physical QR decal to see a car’s specs, modifications, and the person behind it. My main active project, built with Next.js, TypeScript, and Postgres.

note-sh.com (opens in a new tab)

A lightweight text editor in the browser. Built for a very specific audience: me. Sometimes a small tool that does exactly what you want is enough.

better calendar

The calendar I kept looking for: lightweight, cross-platform, with infinite weekly scrolling, timeline planning, and throwaway calendars for trying out a schedule before committing to it.

outplayed.gg

Quick 1v1 minigames for the downtime: reaction tests, sorting, and click races, with casual or Elo-based matchmaking. Started as a way for my friends and me to compete while waiting in Escape from Tarkov queues.

Valorant scouting tool

Back when I competed in Valorant tournaments, I built a tool to scout opposing teams through shared opponent history and matchup insights. A quick read before practice, with enough depth for a full team review.

ls ~/off-screen/

cars & sim racing

I love driving, being part of the car community, and sim racing. That interest is also behind bldbadge. A real track day is on the list, in my car or something else. Rally and drifting look incredible; I’m just not sure I could bring myself to put a car through that much punishment.

FPV drones

I love flying. Currently rebuilding my 5-inch quad after a crash. I said I love flying, not that I’m great at it.

cat about.txt

toolkit

languages
Java, Python, C#, C++, SQL, TypeScript
backend
Spring Boot, .NET, REST APIs
infra
CI/CD, AWS, Docker, Kubernetes, Terraform
security
OAuth 2.0, JWT, PKI, embedded security
frontend
React, Angular

education

Rensselaer Polytechnic Institute
B.S. Computer Science · 2024
Go Engineers!

ls contact/

Want to talk engineering? Let's connect.

email antonio@diiggy.dev
linkedin /in/amiii/