A spreadsheet that was really a database, rebuilt as an application.
A preparer’s Schedule C workbook became a full application in 19 hours. It can grow with the practice and send its data into the tools they already use.
I’m a software engineer with fifteen years of experience building for clients. I help small businesses choose and set up the right AI tools, build AI into everyday workflows, and develop custom software that was once too costly to justify. You work with me directly, from the first conversation through delivery.
Start a conversationMost small businesses don’t need an AI strategy. They need the inbox to stop eating the morning. Depending on where your time goes, the right answer usually looks like one of these.
There are more AI tools than anyone has time to evaluate. I help you choose the ones that fit, set them up with your accounts and data handled properly, and show your team how to get good results from them.
Some of the most useful AI is invisible. It can read incoming requests, pull out the details, draft the reply, and update your records, with a person approving anything that matters. I build those steps into the workflows you already have.
Custom software has always been priced for companies with an IT budget. AI has changed how quickly it can be built, so the tool that would fit your business exactly may now be affordable. I build it, and I build it to be maintained.
19 hours
From a tax preparer’s spreadsheet to a working application.
A few projects in progress. Each one started with someone describing a problem in their week.
A preparer’s Schedule C workbook became a full application in 19 hours. It can grow with the practice and send its data into the tools they already use.
AI describes and tags every image in the library, so pairing a post with the right picture takes a quick search instead of twenty minutes of scrolling.
Ask visitors for less, then fill in the rest automatically. More people finish the form, and the CRM still gets everything it needs. Until recently, this was an enterprise feature.
Sites built so AI-assisted workflows can handle updates, routine changes, and fixes quickly, with me reviewing the work. Less upkeep and a lower ongoing cost.
Most clients start with discovery. From there, you can take on a single project or reserve part of my month for whatever comes up.
I spend time with you and your team, follow how work moves through the business, and come back with a short, prioritized plan: what’s worth doing, what isn’t, and a first project scoped and priced. The plan is yours, whether or not we continue.
Take one item from the plan, such as an automation, an AI-assisted workflow, or a custom tool, and build it to an agreed scope. You end with something in daily use, not a report.
Reserve a set number of my hours each month and use them for whatever matters most: building, maintaining, advising, or sorting out the question your vendor can’t answer. We set the priorities together each month.
I’m Tim Heuermann. I build software around the people who use it.
Before software, I studied hospitality, and it still shapes how I work: listen closely, take responsibility, and pay attention to what it’s like for the people on the other end.
I started SanTan Systems because the tools have finally caught up with what small businesses need, and I wanted to work with those businesses directly. I’m based in Arizona and work with clients wherever they are.
A few sentences is plenty. You don’t need to know what AI can do yet; figuring that out is my job. I read and reply to every message myself.