Custom software
Internal tools, back-office systems and workflow automation built around how your business actually operates.
Software & app development · Austin, Texas
Software, built here.
MJC Systems designs and builds custom software, web platforms and mobile apps for businesses that need them done right. Every line of code is written by our own engineers in the United States.
Engineers in TexasYou talk to the people who write the code.
Nothing subcontractedNo offshore vendors, no handoffs you never see.
Your code, your accountsRepos, cloud and domains stay in your name.
Working software, every milestoneNot slide decks. Deployed, testable builds.
What we build
From a first version to the system your business runs on.
Web platforms
Customer portals, dashboards, e-commerce and subscription products. Fast, secure, and built to be maintained.
Mobile apps
iOS and Android apps that share a backend with your web product, so one change ships everywhere.
Integrations & APIs
Payments, identity, reporting, and connections between the systems you already use. Stripe, QuickBooks, state and industry APIs.
Finish & modernize
Stalled projects, inherited codebases, and platforms that need to be hardened before launch. We finish what others started.
Hosting & support
We run what we build. Monitoring, backups, security updates and a real person to call when something breaks.
How we work
Small team, direct communication, no surprises.
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Scope with an engineer
Your first conversation is with the person who will build your product, not a salesperson. We read your existing code, documents and requirements before we quote.
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Fixed price where it fits
Well-defined work gets a fixed price and a milestone schedule. Open-ended work gets a clear hourly rate and weekly reporting. You always know what you are paying for.
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Working builds at every milestone
Each milestone ends with software you can click through on a staging site, with tests and a written account of how it was verified.
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Built and supported in the United States
Our engineers are here in Texas. Your project is never subcontracted, offshored, or handed to a vendor you have not met. Your code and data stay under your control.
About MJC Systems
MJC Systems is a software development company based in Austin, Texas. We build for small and mid-sized businesses, professional practices and regulated industries: the kind of work where correctness, security and a clear paper trail matter.
We are comfortable with payments, personal data, audit logs and state reporting requirements, and we design for them from the start rather than bolting them on later.
What we work with
Tell us what you need built.
Send a few sentences about the project and where it stands. You will hear back from an engineer, usually within one business day.
info@mjcsystems.com