Available for select freelance work · Remote collaboration

I turn your idea into a website, mobile app, custom business system, AI tool, or automation that people can actually use.

Websites / Apps / AI / AutomationAngelo Santiago, a software developer and AI engineer
Angelo Santiago
Programmer & problem solver

What I can build for you

Choose what your business needs. I’ll handle the build.

01

Business automation

I connect your forms, email, and existing tools so routine tasks happen automatically and your team spends less time copying information or chasing follow-ups.

02

Websites, mobile apps & custom systems

Need a website, a mobile app, or a system built around the way your business works? I handle the design, development, and launch.

03

AI tools for your business

I build practical AI assistants and internal tools that use your business information to help your team answer questions, create content, and get work done.

Selected work

See what I’ve built for other businesses.

Websites, AI tools, and custom systems built around real business needs.

HiGantic conversational AI agent builder dashboard
01AI assistant builder

HiGantic

Problem
Make it simple for people to create capable, specialized AI assistants through conversation.
Built
A complete platform where users can give AI assistants memory, tools, schedules, integrations, and dedicated workspaces.
Result
Users can create agents that work across tasks, notes, spreadsheets, schedules, webhooks, and connected services.
Visit live project
WellChat AI mental health support application interface
02AI conversation and support app

WellChat AI

Problem
Create a guided conversation app with safety features and helpful resources.
Built
One app with guided AI personalities, crisis detection, training scenarios, audiobooks, stories, subscriptions, and admin controls.
Result
Users can access guided conversations and related support tools in one place.
Visit live project
Hometown Roofing and Restoration website shown across desktop and mobile screens
03Business website + lead automation

Hometown Roofing TX

Problem
Replace an outdated Wix website and manual lead follow-up with a site that is easier to manage.
Built
A fast, mobile-friendly website with migrated content, automated form handling, and follow-up emails.
Result
Lead capture and service inquiries now enter a hands-off follow-up pipeline as soon as a form is submitted.
Visit live project
Hometown AI internal platform interface with company AI tools
04Company AI toolkit

Hometown AI

Problem
Give roofing employees useful, company-specific AI without requiring technical expertise.
Built
A private company platform for sales practice, staff chat, document search, image generation, and admin controls.
Result
Employees can practice sales scenarios and get answers from company documents when they need them.
Private client platform

Professional experience

Four years of professional software development.

RoleSoftware Developer

CompanyExpert Solution Outsourcing

Period2022–2026

  • Built and maintained web applications for business use.
  • Created AI-powered internal tools that helped teams work with company information.
  • Automated recurring business tasks and connected the services those workflows depended on.
View full résumé

About / working style

You don’t need to speak developer. I’ll help you make the right technical choices.

I’m Angelo, a developer who builds websites, mobile apps, custom systems, AI tools, and business automations for clients and teams.

You don’t need a finished plan or technical vocabulary to get started. Bring the idea or problem. I’ll help shape the scope, explain the options in plain language, and build something reliable that fits how people will use it.

A simple process

You’ll know what’s happening from start to launch.

  1. 01

    Plan

    We talk through your idea, who it is for, and what the first useful version needs to do.

  2. 02

    Build

    I build it in clear stages and show you the progress, so you can give feedback while the work takes shape.

  3. 03

    Launch

    I test the important parts, polish the details, and make sure you know how to use and manage what was built.

Have an idea or a problem to solve?

Tell me what you need. We’ll work out the next step.

Whether you need a website, app, custom system, AI tool, or automation, a rough description is enough to start.

Prefer email?Email me directly

Available for remote collaboration