Aaron Sleeper

I design and build software for health, government and nonprofit teams.

Eighteen years across product design and front-end engineering, from the first research conversation to production code. For the past year I’ve built with AI agents in daily production, with automated checks that stop off-system or broken work before it ships. One design system now produces a care platform’s app screens, slide decks, diagrams, posters and Word documents.

I take on fixed-term projects and permanent roles.

Résumé · Essays · LinkedIn · Email

Recent launches

A compliance site with a deadline written into law

The need: Circular Action Alliance runs California’s SB 54 packaging-recycling program. It needed a site that explains the law to the companies it covers, built inside the organization’s existing website and brand.
The window: About ten weeks of part-time work, April to June 2026. Delivered to the client in June 2026, and live on their site now. The law’s deadline is January 1, 2027.
What shipped: The microsite, built with the client’s own site builder and approved by its communications team. The brand’s typeface wasn’t licensed for the web, so I chose a substitute, set it against their live pages until the two read as one organization, and fixed the sizes so nothing could grow past what I’d checked.
What the team kept: Reusable page blocks their staff can place into new pages without me.

See it live

A statewide campaign site, built to the state’s own standard

The need: California’s Governor’s Office of Business and Economic Development (GO-Biz) needed a website for its statewide brand campaign, Just Another Day in CA, delivered inside a team spanning several agencies.
The window: July to September 2026, from contract kickoff to launch.
What shipped: The campaign site, built on the California Design System to the contract’s WCAG 2.1 AA accessibility standard.
What the team kept: Handover documentation written for the in-house web staff taking the site over.

See it live

One design system, every format

The need: A small care platform needed its product, its decks, its diagrams and its printed pieces to look like one organization, without a designer hand-adjusting each one.
The window: Mid-2025 to now, alongside the product itself.
What shipped: A design system that the app screens, slide decks, diagrams, posters, print pieces and Word documents all render from. Automated checks block any page that uses a color, size or component from outside the system.
What the team kept: One place to make a change, and the change reaches every format.

One check, one catch

I leave private notes in my working files, in a format my editor hides. In August I learned that the converter I use to turn those files into shared documents doesn’t hide them. It prints them as plain text. So I added a check that blocks any file headed out with a note still in it.

The day it went in, it found one: a note of mine on line 207 of a client report, one step from being shared. I deleted the note and the report went out clean. The check has run on every outgoing file since.

Earlier work

Rescue, The Behavior Change Agency · Led design and development for two FDA youth tobacco-prevention campaigns that drew more than 15 million site visits.
Accenture · Replaced a logistics company’s 45-foot scheduling whiteboard with a coordination platform that grew with the business.
Faro Health · Led UX for a platform that shows pharmaceutical teams a clinical trial’s cost, patient burden and risk while they design it.
Bessemer Trust · Led UX for a wealth-management client platform and built its design system.