Seattle · Design leader & builder

Jeni Sadler

Design leadership, now building & shipping with AI.

For nearly a decade I led UX for Amazon's Kids & Family product line, most recently as a Senior UX Manager directing a 15-person multidisciplinary team across Fire tablets, Kindle, Echo, Fire TV, and mobile. Today I bring that leadership to a new way of building: directing a five-agent, AI-augmented workflow to design and ship iPadOS and iOS apps, solo.

01

Selected work

NihonGo Ink

Flagship · Indie iPadOSPre-launch

Helps people learn beautiful Japanese handwriting with correct stroke order, direction, and shape, for Japanese learners and native writers improving their everyday pen handwriting.

RoleFounder · Product & UX Lead
StackiPadOS · SwiftUI · PencilKit · Supabase · KanjiVG

How it's builtDesigned, built, and shipped solo by directing a five-role AI development team.

Read the case study →
NihonGo Ink Today screen on iPad with daily practice goal, character flashcards, and sakura branding
Echo Dot Kids Edition Tiger on a child's desk with art on the wall, a microscope, and toy car

Kids Edition Echo

Amazon · Devices
RoleSenior UX Manager · Built & led the design org
View case study →
Amazon India delivery associates on a motorcycle on a busy Indian street, passing an amazon.in storefront banner with local-language ads

Amazon India Marketplace

Amazon · Shopping
RoleUX Design Manager
View case study →
Child with green headphones watching Amazon Kids on a purple Fire HD 8 Kids Edition tablet at a kitchen counter

Amazon Kids Redesign

Amazon · Kids & Family
RoleSr. UX Design Manager
View case study →
Young girl smiling and holding a purple illustrated Kindle Kids case in a living room

Unified Product Design

Amazon · Product Strategy
RoleSr. UX Design Manager
View case study →
02

Leadership, by the numbers

15
person team I led as Senior UX Manager
~10
years leading UX at Amazon
5
platforms I shipped products on: Fire tablets, Kindle, Echo, Fire TV, mobile
5
AI agents I now direct, solo
03

About

I'm a UX design leader with nearly a decade at Amazon, most recently a Senior UX Manager leading a 15-person multidisciplinary team shaping Kids & Family products across Fire tablets, Kindle, Echo, Fire TV, and iOS/Android.

Since 2020 I've deepened my Japanese fluency, earned a Project Management certification, and launched Iguanahouse, where I design and build iOS and iPadOS apps using a structured, five-agent AI-augmented workflow.

I'm ready to bring that methodology, and everything I built and learned leading teams at Amazon, into a senior design or design leadership role.

Based inSeattle, WA
StudioIguanahouse
FocusProduct design · AI prototyping
BuildingiPadOS · iOS · SwiftUI
Open toLeadership · Contract · Sprints
04 · Get in touch

Let's build something worth shipping.

Open to design leadership roles, contract UX, and AI prototyping engagements.