Content designer


I’m a Content Model Designer at Thumbtack, helping people get answers that sound less like robots and more like good help. Before that, I designed content for edtech companies like BrainPOP. As a former school principal and English professor, I’m still a teacher at heart.

I do my best work where words, research, and systems shape how people experience a product, whether that’s an onboarding flow or what AI says.

Sarah Mondestin
Companies I’ve worked with
Thumbtack BrainPOP Quizizz Boston Public Schools Dallas College West Coast University

How I think

Content design is evolving. But writing is still at the heart of the practice.

When we design content with AI tools, we don’t have to lose our voice or our brand. We use these tools to push our thinking and build the structure behind every word. Then we hold AI to the same bar as any good writer: be honest, be clear, and know when to be quiet.

And every so often, when we want to ditch AI and write with pencils and paper, we do.

My work

See more of my work →

My work is password-protected. Email me for the password, and I’ll send it the same day.

Beyond the product

The systems and ways of working I bring to a whole organization.

Content design office hours

I revamped our company’s office hours into ongoing content research. We learn the pain points of our internal customers, and our AI tools keep teams organized, surveyed, and coming back.

Read how we did it →

A team of one

When BrainPOP’s content team went from six people to one, I was the one. I built the systems that got four products speaking in one voice, and content errors dropped 20%.

See the systems (password-protected) →

AI Champions

I’m the design representative on our company’s AI Champions team, leading the charge on new AI initiatives. I host a design-organization-wide AI build time, and my Claude Design collaboration with a product designer landed us a presentation spot at a company-wide event.

Writing-help plugins

I own our content design plugins for Figma, Claude, and ChatGPT. I keep them accurate, up to date, and useful by tracking usage and making changes as we learn.

See it in action (password-protected) →
How I work

Good content still starts
with knowing your audience

As an educator, I’ve learned that being understood matters more than sounding smart. We don’t need fluffy language or corporate jargon. People crave simplicity. When we know what our audience needs, we can give them exactly that.

The bar I hold every word to
CriterionPass ifFail if
HonestIt says only what happened or what we know.It promises, guesses, or overstates. “The pro will reply soon.”
ClearA first-time reader gets it in one pass.It needs jargon, or a second read.
HumanIt sounds like a person helping.It sounds like a form. “You will be contacted.”
RespectfulIt protects people’s privacy and time.It names, exposes, or overshares.
QuietIt knows when to stop.It asks again, or says more than it needs to.

I use a version of this for UX copy, style guides, and AI evals.

What people say

[Sarah] had an excellent quarter. Call Summaries v2 stands out, both for the prompt work and for everything [she] put in place to support it: the eval workflow, the changelog, the prompt crits, and a handoff doc that makes it easier for others to carry the work forward.

Rae Broviak · Content Design Manager at Thumbtack

Sarah reshaped how we design with words. Her strategic approach to UX content design improved countless opportunities for conversion, feature adoption, and user task completion.

Stephanie Hom · VP of Product Design, BrainPOP
More reviews →
The AI Build Time page: a monthly, one-hour session where the design organization learns from each other and builds with AI. Thirty minutes of peers sharing work in progress, then thirty minutes to try something. Claude, using the content design plugin, scoring a screen’s copy during a brand audit: the scope, an overall score of 3 out of 5 as shown and 4 out of 5 with a suggested comment applied.
A pre-read message from the Content Design Bot: who is coming, the problem, the Figma link, whether it’s AI-related, and a note that the participant already got a reminder.
Pre-read. The morning of a session, an AI bot sends me who’s coming and what they need, and reminds them for me.
A recap message from the Content Design Bot: what we discussed, next steps, terminology to add to the repository, and a drafted follow-up for me to approve.
Recap. After the session, the bot sums up what we discussed, flags new terms for our terminology repository, and drafts a follow-up I approve before it’s sent.
The office hours sign-up tracker: date, time, content designer, the requester, the problem, Figma and Loom links, project phase, and whether it’s AI-related.
Tracker. Every session is logged, so we can spot patterns in what teams need.
BrainPOP’s product menu: BrainPOP Jr., BrainPOP, BrainPOP Science, BrainPOP ELL, BrainPOP Español, and BrainPOP Français, above the subject tiles.