Skip to main content
Senior engineering · Flat fee · Written quote in 48 hours

You have something to build,or something to fix.Cardinal does both.

A senior team with production experience across regulated industries, fast-moving startups, and everything in between. Flat fee. Written quote in 48 hours. No call required.

Selected work

TheryoFilerlinkAIMS ClinicalLawtimeProspectusConnect
01Selected work

A sampling of what we have shipped.

Selected projects across several industries. Some are in regulated sectors where the engineering bar is highest. All are in production.

Theryo homepage — AI-augmented platform for therapists with session prep, documentation support, and client app
Theryo

Theryo

Healthcare · HIPAA

AI-powered mental health platform for providers and clients. iOS, Android, and web apps with AI journaling, clinical documentation support, and provider-client communication. Mental health data is some of the most sensitive information in production, and every LLM call runs through Redactor before any external model sees it.

HIPAA · BAA-grade · PHI in production

Filerlink SEC filing platform showing EDGAR-connected prepare, validate, submit, and archive workflow
Filerlink

Filerlink

Financial · SEC

Online SEC form submission platform for compliance and disclosure reporting, built for EDGAR-connected regulatory workflows. A filing error at the SEC is not a bug report, it is a regulatory event. This system was built with that knowledge in every decision.

SEC · EDGAR-integrated

Lawtime

Legal

Legal case discovery and case management application for plaintiff-side legal teams. Attorney-client privilege is not a compliance checkbox, it is the foundation of the client relationship. Every architecture decision treated it that way.

Attorney-client privilege · Confidential data handling

Mutual NDA on every engagement, regardless of industry or project size.

See more of our work

Cardinal Direction Free

See what you should build next.

A free tool from the Cardinal Stacks team. Upload a résumé, or pitch an idea. Either way, you walk away with a ranked, evidence-backed shortlist in about twelve minutes. No discovery call, no strategy deck.

Explore Cardinal Direction
direction.cardinalstacks.comLive
Cardinal Direction landing screen, showing the two real entry paths: upload a résumé or validate an idea

The actual Cardinal Direction app, live.

Tell us what you have. We'll tell you what it takes.

Send a brief, a repo, or a sketch. Every brief gets read by a founder. We write back within 48 hours.