// muller

end-to-end prdct design

// brands worked

2018 - 2026

ADP

human tech

Binance

crypto

Decathlon

e-com

SAP

data technology

Fila

e-com

Jack in the Box

food tech

Yalo

data technology

Agibank

banking

Tok&Stok

e-com

RBI

food tech

Multi

e-com

dengo

e-com

umbro

e-com

CacauShow

e-com

Reserva

fashion

02・work

homepage.scale

Hi, Mr. Scott

Welcome to Business Data Cloud

Ask or find...

What's new?

Help me to approve access

Resume System Health

Here some options to show <Data> from <Source> to <Location> in a <input> way.

Saved. You can see again your request on the history.

I want to compare Data Product activations, by type and department to be able to know how the dashboards are being distributed

BD9904

Datasphere 1

Generate

Strategic redesign of the homepage to scale conversion for large e-commerce. Research, A/B testing, component library, and delivery for multiple markets.

/role

UX Specialist

/scope

US,EU and BR

+ engagement

outcome

+ company pattern

outcome

1.1

nda:request

decahtlon.app: launch

Leadership of the Decathlon super-app launch in Brazil. From scratch to national launch: architecture, design system, multiple squads, global stakeholders.

/role

Senior UX

/platform

Android, iOS

+ user adoption

outcome

+ %14 conversion

outcome

2.1

access

kore.ds

Multi-brand Design System for mobile e-commerce. One system, multiple brand: delivery speed 3× faster and scalable visual consistency.

/role

Design Lead

/platform

Android, iOS

3x faster delivery

outcome

+20 clients

outcome

3.1

access

//daily manager

sofie.status:

just wake up - demanding walk

food.approval:

approved

uptime:

7y 6m - approval rate: 94%

//contact

linkedin.com/in/leormuller

porto alegre, Brazil - utc-3

03・about

hello

-30.0346º -51.2177º

/ and Sofie, my daily manager

analog photographer and designer.

specialized in design systems, accessibility and discovery.

masters in media studies and auto-adaptative AI UI

experienced with e-commerce, banking, crypto, and data industries.

linkedin

//talks

design handoff: best practices

guix

watch

accessibility in design systems

guix

watch

design system to scale

tdc

watch

scaling design team

tdc

watch

end-to-end ux: translating data in apps

ebac ・online course

watch

//experience

2025 →

ux designer specialist

sap ・canada・remote

full-time

2023 → 2025

lead product designer

ambush ・united states・remote

full-time

2021 → 2023

sr product designer / lead product designer

kobe apps ・brazil

full-time

2020 → 2021

ux designer

dragon venture capital ・brazil

full-time

2019 → 2020

ux designer

adp brazil labs ・brazil

part-time

//education

2026 →

msc media studies and communications

puc-rs ・ai and self-adaptative ui

masters

2018 → 2022

ba communications and advertising

espm-sul

bachelors

2021

design system specialist

meiuca

specialization

2022.award

cannes future lions・short list

2021.award

young lions live award・short list

2021.award

expocom national・best art direction

2020.award

student of the year・gold award

2020.award

hackathon un social challenge・1st award

// muller

end-to-end prdct design

// brands worked

2018 - 2026

ADP

human tech

Binance

crypto

Decathlon

e-com

SAP

data technology

Fila

e-com

Jack in the Box

food tech

Yalo

data technology

Agibank

banking

Tok&Stok

e-com

RBI

food tech

Multi

e-com

dengo

e-com

umbro

e-com

CacauShow

e-com

Reserva

fashion

/senior-ux

Decathlon app

/lead-ux

Wendy's Fresh AI

/lead-ux

Multi Brand Mobile

02・work

homepage.scale

Hi, Mr. Scott

Welcome to Business Data Cloud

Ask or find...

What's new?

Help me to approve access

Resume System Health

Here some options to show <Data> from <Source> to <Location> in a <input> way.

Saved. You can see again your request on the history.

I want to compare Data Product activations, by type and department to be able to know how the dashboards are being distributed

BD9904

Datasphere 1

Generate

Strategic redesign of the homepage to scale conversion for large e-commerce. Research, A/B testing, component library, and delivery for multiple markets.

/role

UX Specialist

/scope

US,EU and BR

+ engagement

outcome

+ company pattern

outcome

1.1

nda:request

decahtlon.app: launch

Leadership of the Decathlon super-app launch in Brazil. From scratch to national launch: architecture, design system, multiple squads, global stakeholders.

/role

Senior UX

/platform

Android, iOS

+ user adoption

outcome

+ %14 conversion

outcome

2.1

access

kore.ds

Multi-brand Design System for mobile e-commerce. One system, multiple brand: delivery speed 3× faster and scalable visual consistency.

/role

Design Lead

/platform

Android, iOS

3x faster delivery

outcome

+20 clients

outcome

3.1

access

//daily manager

sofie.status:

just wake up - demanding walk

food.approval:

approved

uptime:

7y 6m - approval rate: 94%

//contact

linkedin.com/in/leormuller

porto alegre, Brazil - utc-3

03・about

hello

-30.0346º -51.2177º

/ and Sofie, my daily manager

analog photographer and designer.

specialized in design systems, accessibility and discovery.

masters in media studies and auto-adaptative AI UI

experienced with e-commerce, banking, crypto, and data industries.

linkedin

//talks

design handoff: best practices

guix

watch

accessibility in design systems

guix

watch

design system to scale

tdc

watch

scaling design team

tdc

watch

end-to-end ux: translating data in apps

ebac ・online course

watch

//experience

2025 →

ux designer specialist

sap ・canada・remote

full-time

2023 → 2025

lead product designer

ambush ・united states・remote

full-time

2021 → 2023

sr product designer / lead product designer

kobe apps ・brazil

full-time

2020 → 2021

ux designer

dragon venture capital ・brazil

full-time

2019 → 2020

ux designer

adp brazil labs ・brazil

part-time

//education

2026 →

msc media studies and communications

puc-rs ・ai and self-adaptative ui

masters

2018 → 2022

ba communications and advertising

espm-sul

bachelors

2021

design system specialist

meiuca

specialization

2022.award

cannes future lions・short list

2021.award

young lions live award・short list

2021.award

expocom national・best art direction

2020.award

student of the year・gold award

2020.award

hackathon un social challenge・1st award

// muller

end-to-end prdct design

// brands worked

2018 - 2026

ADP

human tech

Binance

crypto

Decathlon

e-com

SAP

data technology

Fila

e-com

Jack in the Box

food tech

Yalo

data technology

Agibank

banking

Tok&Stok

e-com

RBI

food tech

Multi

e-com

dengo

e-com

umbro

e-com

CacauShow

e-com

Reserva

fashion

/senior-ux

Decathlon app

/lead-ux

Wendy's Fresh AI

/lead-ux

Multi Brand Mobile

02・work

04 cases

warning of nda

US/EU/BR

PRJ 01

homepage.scale

design strategy

specialist ux

Strategic redesign of the homepage to scale conversion for large e-commerce. Research, A/B testing, component library, and delivery for multiple markets.

/role

UX Specialist

/scope

US,EU and BR

+ engagement

outcome

+ company pattern

outcome

1.1

nda:request

Hi, Mr. Scott

Welcome to Business Data Cloud

Ask or find...

What's new?

Help me to approve access

Resume System Health

Here some options to show <Data> from <Source> to <Location> in a <input> way.

Saved. You can see again your request on the history.

I want to compare Data Product activations, by type and department to be able to know how the dashboards are being distributed

BD9904

Datasphere 1

Generate

PRJ 02

decahtlon.app: launch

mobile app

sr product designer

Leadership of the Decathlon super-app launch in Brazil. From scratch to national launch: architecture, design system, multiple squads, global stakeholders.

/role

Senior UX

/platform

Android, iOS

+ user adoption

outcome

+ %14 conversion

outcome

2.1

access

PRJ 03

kore.ds

design system

design lead

Multi-brand Design System for mobile e-commerce. One system, multiple brand: delivery speed 3× faster and scalable visual consistency.

/role

Design Lead

/platform

Android, iOS

3x faster delivery

outcome

+20 clients

outcome

3.1

access

03・about

hello

-30.0346º -51.2177º

/ and Sofie, my daily manager

analog photographer and designer.

specialized in design systems, accessibility and discovery.

masters in media studies and auto-adaptative AI UI

experienced with e-commerce, banking, crypto, and data industries.

linkedin

//experience

2025 →

ux designer specialist

sap ・canada・remote

full-time

2023 → 2025

lead product designer

ambush ・united states・remote

full-time

2021 → 2023

sr product designer / lead product designer

kobe apps ・brazil

full-time

2020 → 2021

ux designer

dragon venture capital ・brazil

full-time

2019 → 2020

ux designer

adp brazil labs ・brazil

part-time

//talks

design handoff: best practices

guix

watch

accessibility in design systems

guix

watch

design system to scale

tdc

watch

scaling design team

tdc

watch

end-to-end ux: translating data in apps

ebac ・online course

watch

//education

2026 →

msc media studies and communications

puc-rs ・ai and self-adaptative ui

masters

2018 → 2022

ba communications and advertising

espm-sul

bachelors

2021

design system specialist

meiuca

specialization

2022.award

cannes future lions・short list

2021.award

young lions live award・short list

2021.award

expocom national・best art direction

2020.award

student of the year・gold award

2020.award

hackathon un social challenge・1st award

//daily manager

sofie.status:

food.approval:

approved

uptime:

7y 6m - approval rate: 94%

//contact

linkedin.com/in/leormuller

porto alegre, Brazil - utc-3