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Design lead at Orrin
Booking projects from November

Noor Castell

1111 × 190

Product designer in Rotterdam. I turn complicated workflows into software people actually keep open.

▣at-the-desk.jpg
Noor sketching interface ideas on a tablet
◇Now: Orrin app
Pay run · Oct● Ready
€12,480.00
14 freelancers · paid Friday
Approve pay run
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Noor Castell
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at-the-desk.jpg
Now: Orrin
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◇Shipped with8 clients · 10 skills
OrrinFintechQuayside ClinicsHealthHolm & HearthCommerceVale HutsTravelKiln AudioHardwareTessel ArchitectsArchitectureFietsbankMobilityHarbour LabsLogisticsOrrinFintechQuayside ClinicsHealthHolm & HearthCommerceVale HutsTravelKiln AudioHardwareTessel ArchitectsArchitectureFietsbankMobilityHarbour LabsLogistics
TInteraction designTPrototypingTDesign systemsTUser researchTFramer sitesTService designTMotionTWorkshopsTAccessibilityTDesign QATInteraction designTPrototypingTDesign systemsTUser researchTFramer sitesTService designTMotionTWorkshopsTAccessibilityTDesign QA
▣ at-the-desk.jpgCrop · 381 × 476
Sketching interface ideas on a tablet
[03]About

I've spent nine years untangling the software people use at work, for 4.2M people a month: payroll, physio bookings, furniture and mountain huts.

I start where the problem happens: on the reception desk, in the pay run, at the trailhead. Then I design the fewest decisions that get someone from stuck to done, and I stay until it ships.

Before going independent I designed at Fietsbank and Harbour Labs. Today I lead design at Orrin and take one outside project at a time.

Based inRotterdam, NL
Working withTeams of 5 to 5,000
LanguagesEnglish, Dutch, German
ResearchInteraction designPrototypingDesign systemsFramerWorkshops
More about me
[04]Selected work
01 Orrin
02 Quayside
03 Holm & Hearth
04 Vale
Orrin Payroll·2026

Orrin

Payroll for freelancers, rebuilt so a monthly pay run takes four minutes instead of an afternoon.

4 min
average pay run, down from 3 h
−38%
failed first payments
4.8
App Store rating, 11k reviews
FintechiOSDesign system
Read the case study
01 Background
02 Layout grid
03 Hero image
04 UI cards
05 Type
06 Redlines
01 Background
02 Layout grid
Orrin
03 Hero image
Orrin Payroll
€12,480.00
Pay run ready · 14 people
Continue
✓Invoice #0142 paid
04 UI cards
OrrinProductPricingStoriesGet started
Pay your freelancers in one tap.
Payroll for freelancers.
05 Type
36242412M
06 Redlines
# Orrin — Hero · 1920 × 1200
[05]In numbers

The file so far

Updated Sep 2026
Wyears01
0
designing software for teams of 5 to 5,000
Hproducts02
0
shipped to production, and still running
XM03
0.0M
people use them every month
Ysystems04
0
design systems built and documented
[07]Process

How a project runs

Auto layoutHorizontalGap 24Padding 24Step 1 / 4
01Week 1

Discover

I sit where the problem happens: on the desk, in the field, in the support queue. One week, no slides.

02Week 2

Define

We agree the one outcome that matters and write it down with a number next to it.

03Weeks 3–8

Design

Prototypes in the real font on the real device, tested with five people every Friday.

04Weeks 8–12

Deliver

I stay through the build, review every pull request that touches the interface and measure the result.

[08]

TESTIMONIALS

Comments left on the file

Six clients, six threads. Resolve them if you’ve read enough.

Start a project →

ML
Mara Lindqvist
Head of Product, Orrin
◇ Orrin

“Noor asked better questions in week one than we had in a year. The pay run redesign paid for itself in a month of support tickets.”

1 reply · Noor
IA
Idris Achterberg
Operations Director, Quayside Clinics
◇ Quayside

“She spent four mornings on our front desk before drawing anything. Our receptionists still talk about it, and the booking flow shows it.”

1 reply · Noor
SH
Saskia Holm
Co-founder, Holm & Hearth
◇ Holm & Hearth

“The 'will it fit?' check was a text field. It cut our returns by a quarter. Noor has no ego about the size of the idea.”

1 reply · Noor
ED
Eirik Dahl
CTO, Vale Huts
◇ Vale

“Offline-first sounded like an engineering problem until Noor made it a design rule. Every screen had a weight budget, and she kept us to it.”

1 reply · Noor
LB
Lotte Brink
Founder, Kiln Audio
◇ Kiln Audio

“We launched with six people and a sound test in the browser. 11,000 pre-orders later, I'd hire Noor for anything.”

1 reply · Noor
TV
Tomas Verhey
Partner, Tessel Architects
◇ Tessel

“She got ninety architects to agree on what 'status' means. That alone deserves an award.”

1 reply · Noor
[09]Playground

Things I make when nobody's paying

Type experiments, motion studies and photos from the sketchbook. Drag anything around.

Open the playground
bike-poster-test.jpg
bike-poster-test.jpg
Every button on this board is fake. Every idea is real.
Noor · note
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◇ Toggle, 4 states
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Sunday project: a typeface made of bike parts.
Noor · note
lamp-study.jpg
lamp-study.jpg
stripes.jpg
stripes.jpg
Motion study: things that bounce should also squash.
Noor · note
#experiments
Drag anything · board resets on reload

[10]

JOURNAL

Notes from the file

Short essays on research, systems and the business of design. One a month, no newsletter pop-ups.

Read the journal →

[11]Questions

Before you ask

The questions I get in almost every first call. If yours isn't here, ask it in the form; I answer every one.

Ask something else
LayersFAQ7 items

Digital products and websites where a real workflow needs untangling: fintech, health, commerce, travel and internal tools. I work best with teams that can ship every week.

Usually alone, embedded in your team. For larger projects I bring in two long-time collaborators: a front-end developer and a researcher.

A fixed price for a defined outcome, agreed after a free 20-minute call. Monthly retainers are available for ongoing product work.

Figma for design, Framer for websites and prototypes, and whatever your engineers use for the build. I'm happy to work in your files.

I book about six weeks ahead. The next opening is in November; research sprints can sometimes start sooner.

Yes. About a third of my clients are in North America. I keep four hours of overlap with your working day.

I can, but it's rarely the best use of your budget. Most of the value comes from the research and decisions before the pixels.

[12]Next step

Got a messy workflow? Let's untangleText · 104 it.

Tell me what's slow, confusing or costing you support tickets. I reply within one working day with a first idea and a fixed price.

Book a 20-min intro

Local time ● online

--:--:--
Rotterdam. I reply within one working day, usually faster.

Version history v26.10

v26.10Added the Kiln Audio case studyv26.07New journal: receptionists and booking flowsv26.04Orrin pay run results are inv26.01Portfolio rebuilt as a design file
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