Derek Castelli
Derek J Design · Testament Made, LLC

Work with me

Open for work · from Dec 18

I’m Derek, a self-taught designer in Des Moines, designing since 2010. I make sites, logos and brands, give honest feedback, and help put AI to work where it helps. You’ll work with me directly, from the first call to launch.

“A crucial, fun partner to work with.”

Derek helped me revamp Scenery's brand, logo, and website in the first two months of my tenure and was a crucial, fun partner to work with throughout the process. Derek had a well defined process, integrated into the team well, and came up with creative approaches when they were most needed — at both the start and finish of the project. Thank you Derek!

Barrett JohnsonFormer Head of Marketing at Scenery Client
“Oh man, that’s legit.”

There’s a guy named Derek who, whenever I post these side projects, he’s like, “Hey man, I made a logo for you.” And then I’ll be like, oh man, that’s legit. Send me a Stripe invoice link and I’ll send you some money. This has happened maybe like five times now, where he does this and then I just give him money, unprompted.

Josh PigfordFounder of Baremetrics, maker of NameSnag Client
“A unique drive to always seek out the best solution.”

Derek is an incredibly talented Designer and Webflow Developer with a unique drive to always seek out the best solution and learn new things along the way.

Corey MoenFormer Brand/Web Designer at Webflow Friend
“My favorite website we've completed in just 6 months.”

We're celebrating the launch of River Valley's new website! Go check it out! Shoutout to Josh Coyle and Derek Castelli for what happens to be my favorite website we've completed in just 6 months!

Shelley MartinApollos Teammate
“Visually exceptional and user-friendly interfaces.”

I highly recommend Derek for his exceptional skills in User Interface (UI) design and Webflow Development. Derek's creative approach to UI consistently delivers visually exceptional and user-friendly interfaces that drives results. His proficiency in Webflow empowers him to bring his designs to life with seamless functionality and responsiveness. Derek's attention to detail, collaborative nature, and commitment to staying current with design trends makes him a valuable asset to any project.

Danny BegnocheOwner at One Branding Teammate

What I do

Websites Designed and built in Webflow or custom code, with content your team can update. Two rounds of revisions in design, two in the build. 10 examples
Logos A mark or wordmark that fits who you are, with the files you need for everything. 6 examples
Rebrands Week-long brand sprints: logo, type, color and a short guide, so everything starts to feel like the same place. 3 examples
Get an estimate Step 1

What can I help with?Pick as many as you like.

Your website

Project
What you need
Platform
Add to it

Your logo

Project
Logo type
Add to it

Your rebrandDone in week-long brand sprints: $1,500 for the first, 10% less for each week after. One covers the core of a brand.

Sprints
Logo

Feedback

What to look at
Format
Add to it

Your AI project

Type
Size
Add to it

When would you like to start?Prices move with timing, scope and what’s included.

Budget in mind

Who am I talking to?

Look right?It comes straight to my inbox. I’ll reply within two business days.

Thanks, friend.

Your request is in my inbox. I read every one myself and will reply within two business days, usually sooner.

  1. A short callAbout what you need and why.
  2. A proposalLike the one beside this, with real numbers.
  3. We get to workDesign, build, and launch together.
Get an estimate

Rather just talk? Email me at