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

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

30,000+ downloads

Lotería Tradicional

Personal project · 2020 – 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

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

FreeTogether

Personal project · 2026

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

Rally Competitions

Founder · 2026

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

dannydominguez.dev

Personal project · 2022 – Present

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

Astro · AWS Amplify · Route 53 · Playwright

Role Model Chatbot sign-in and home screens

Conversational Agent

M.S. capstone, Drexel · 2021 – 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.