Danny Dominguez
Portrait of Danny Dominguez

Danny Dominguez

Software Engineer II at Invoice Cloud

McAllen, TX

I build reliable payment platforms and backend services in .NET and Azure.

Four years shipping payment APIs, modernizing legacy .NET services, and building AI-assisted tooling that speeds up how my team works.

Open to new roles.

Experience

Invoice Cloud

– Present

Software Engineer II

– Present
  • Built a machine-learning fraud and abuse detection service, saving about $90K a month in third-party vendor costs.
  • Delivered payment APIs, a ledger service, and onboarding for a payment-facilitator platform, cutting processing costs about 50% for participating customers.
  • Led migration of legacy services to modern .NET, raising transaction throughput 25%.
  • Built a reusable AI skill that takes work items from grooming to ready-for-testing.

Software Engineer I

–
  • Automated on-call diagnostics, cutting time-to-resolution for priority-one incidents 30%.
  • Improved Azure DevOps CI/CD pipelines, reducing failed deployments 45%.
  • Refactored legacy Visual Basic and C# applications for testability with NUnit, Moq, and Playwright.
  • Supported payment and batch systems serving 3,000+ customer organizations.

Drexel University

–

M.S., Software Engineering

Personal Projects

2020

Lotería home screen with the El Gallo card and Jugar, Tabla, and Voces buttons

Lotería Tradicional

30,000+ downloads

Personal project2020 – Present

The app is the caller for Lotería, the traditional Mexican bingo game. I first built it in React Native, then rewrote it natively in SwiftUI and Kotlin, adding custom voice profiles you can record and share.

SwiftUI, Kotlin, Jetpack Compose, React Native

2026

FreeTogether group calendar showing each member's availability as colored dots

FreeTogether

Personal project2026

An iOS app for small groups to mark their availability and rank the best dates for trips, reunions, and shared plans.

SwiftUI, Firebase, Cloud Functions

2026

Rally Competitions

Founder2026

A platform for functional-fitness competitions: public event pages and organizer tools on the web, a mobile app for athletes and spectators, and one typed API behind both.

Next.js, Expo / React Native, FastAPI, PostgreSQL, Docker, GitLab CI/CD

2022

dannydominguez.dev

Personal project2022 – Present

This site: a static Astro build with automated accessibility, visual, and performance checks, deployed on AWS Amplify.

Astro, AWS Amplify, Route 53, Playwright

2021

Role Model Chatbot sign-in and home screens

Conversational Agent

M.S. capstone, Drexel2021 – 2022

A chatbot that lets students talk with historical role models, trained on first-person narratives from a custom web scraper.

React Native, Dialogflow, Firebase, Python

Skills

Backend & APIs
.NET 8, .NET Framework, ASP.NET Core, WCF, REST, SOAP
Payments
Datacap, Chase Orbital Gateway, J.P. Morgan Commerce Platform, Cybersource, Bluefin
Languages
C#, SQL, Python, JavaScript, Visual Basic
AI & automation
Claude, OpenAI Codex, Cursor, reusable AI skills, workflow automation
Cloud & delivery
Azure App Service, Functions, Key Vault, Azure DevOps, CI/CD, Git, GitHub
Databases
SQL Server, Oracle, MySQL
Testing
NUnit, Moq, Playwright

About

Danny Dominguez at the Hoover Dam

I'm based in McAllen, Texas. Coding is my job and also a hobby: I like finding software fixes for everyday problems.

Outside of work I travel, stay active, and spend time with family, friends, and my dog, Todd.

Let's talk.

I'm open to new roles, and happy to hear about freelance projects.