Tomas Oliva.

Let's talk

Product Designer UX/UI · Buenos Aires, Argentina

Available · Remote / Buenos Aires

Complex rules.

Clear flows.

Senior Product Designer specialising in fintech, payments, loyalty, and complex digital products. I turn regulated, data-heavy problems into experiences engineers can ship and users can trust.

TOMI

SHELL BOX

12h → 2h

−83% cycle time on operational flows

EWALLY PIX

Pix-first

Wallet designed around Pix as primary

BLU DESIGN SYSTEM

1 system

Shared across web, mobile and operations

Experience at

Digital wallet with Pix

Designed a Material 3 mobile wallet that puts Pix at the centre of every interaction, from the 5-tab navigation with a floating Pix indicator to the dark-mode Área Pix action hub.

Fintech · PRODUCT DESIGN · Mobile

Check case

From 12 hours to 2 hours

Redesigned Shell Box's station operator dashboard, cutting the end-of-day reconciliation workflow by 83%. Discovery, stakeholder alignment, and shipped to production.

Check case

SHELL · EMPLOYEE EXPERIENCE · BACKOFICCE

Ewally • Blu Design System

Built a fintech-grade design system from scratch, colour tokens, type scale, components, and documentation covering web, mobile, and operations surfaces.

Check case

Design System · MATERIAL DESIGN · DOCUMENTATION

Selected work

Cases that shipped.

What I bring

Complex systems,
clear thinking.

Seven years designing products at the intersection of regulation, data, and real human need.

◈

Fintech native

Payments, wallets, credit, loyalty

⌥

Complex flows & states

Multi-step, conditional UX

◎

Research to delivery

Discovery through production

⊞

Design systems

Tokens, components, docs

⟡

Stakeholder alignment

Eng, product, business

⬡

AI-assisted workflow

Accelerated exploration

Trusted twice

Ewally´s CEO hired me twice.

Ewally's Founder & CEO chose me as an independent designer to help launch his new financial startup in the US

Selected impact

−83%

Cycle time · Shell Box

150+

Loan requests / day · Microcredit

1 system

Shared DS · Ewally

How I work

End-to-end & cross-functional.

Product

Engineering

Marketing

Data

Operations

More cases

More complex product work.

Anti-Fraud · Operations · Pix

Pix Anti-Fraud Operations

Designed the internal tooling used by fraud analysts to monitor, investigate and act on suspicious Pix transactions in real time.

Shell · Strategy · Discovery

Shell · Cross-country product discovery

Mapped divergent Argentina and Brazil product roadmaps into a unified design strategy, navigating regulatory, language, and market constraints.

Fintech · Credit · Onboarding

Microcredit experience

Redesigned the microloan request flow to achieve 150+ daily loan requests, simplifying a complex credit product into a mobile-first step-by-step experience.

Brand · Product · Launch

Finperx · From brand to launch

Led end-to-end design for Finperks, from brand identity and design language to product screens, twice.

Shell · Promo · Visual

Shell · Ferrari promo UI

High-stakes promotional campaign interface for Shell's Ferrari partnership, tight deadline, high-visibility execution.

Fintech · Onboarding · Identity

Digital account onboarding

Designed a compliant, low-friction onboarding flow for digital account opening, balancing KYC requirements with a warm, approachable user experience.

Pix · Self-service · Support

Reclaiming a Pix key

Simplified the contested-Pix-key recovery process into a self-service flow, reducing support load while giving users confidence through a tense, high-stakes interaction.

"I turn complex rules into flows that engineers can ship and users can trust."

— Tomás Oliva, Product Designer

Core strengths

Complex flows & states

95%

Design systems

90%

Stakeholder alignment

85%

Research & discovery

88%

AI-assisted workflow

82%

About

Designer. Strategist. Fintech native.

Based in Buenos Aires, working globally. I design products that operate in regulated, high-complexity environments, fintech, payments, operations, where getting the details right isn't optional.

My background spans product design, branding, digital marketing, and motion, giving me an unusual range that lets me work across the full product lifecycle, from early research to polished delivery.

Years of experience by discipline

Product Design

7+

Graphic Design & Branding

10+

Digital Marketing

10+

Motion & Animation

5+

◎

Product thinking

Strategy, discovery, prioritisation

⌥

Complex systems

Multi-state, conditional flows

◈

Visual craft

Typography, layout, motion

⟡

Collaboration

Eng, PM, brand, data

⊞

Design systems

Tokens → components → docs

⬡

ES · PT · EN

Fluent across three markets

End-to-end.

Discovery through delivery and back again.

01

Discover

Research, interviews, heuristics, competitive analysis

02

Define

Problem framing, flows, system mapping, constraints

03

Design

Wireframes, prototypes, design system, iteration

04

Deliver

Handoff, QA support, metrics, iteration post-launch

Tom.

Tomas Oliva.

Product Designer UX/UI · Buenos Aires, Argentina

Available · Remote / Buenos Aires

Complex rules.

Clear flows.

Senior Product Designer specialising in fintech, payments, loyalty, and complex digital products. Turning regulated problems into experiences engineers can ship.

T · O

T · O

SHELL BOX

12h → 2h

−83% cycle time

EWALLY PIX

Pix-first

Material Design Wallet

BLU DESIGN SYSTEM

1 system

Web & mobile

SHELL BACKOFFICE

Operational UX

Internal tool redesign

Experience at

7+

years Product Design

B2B & B2C

Product experience

ES · PT · EN

Languages

AR · BR · EU

Markets

Selected work

Cases that shipped.

Fintech · Mobile · Pix

Digital wallet with Pix

A Material 3 mobile wallet that puts Pix at the centre — from the 5-tab navigation to the dark-mode Área Pix hub.

Check case →

Shell · Operations · UX

From 12 hours to 2 hours

Redesigned Shell Box's station operator dashboard, cutting the end-of-day reconciliation workflow by 83%.

Check case →

Design System · Ewally · M3

Ewally · Blu Design System

A fintech-grade design system from scratch — colour tokens, type scale, components, and documentation.

What I bring

Complex systems, clear thinking.

Seven years designing products at the intersection of regulation, data, and real human need.

◈

Fintech native

Payments, wallets, credit

⌥

Complex flows

Multi-step, conditional UX

◎

Research to delivery

Discovery → production

⊞

Design systems

Tokens, components, docs

⟡

Stakeholder alignment

Eng, product, business

⬡

AI-assisted workflow

Accelerated exploration

Trusted twice

Ewally´s CEO hired me twice.

Ewally's Founder & CEO chose me as an independent designer to help launch his new financial startup in the US

Selected impact

−83%

Cycle time · Shell Box

150+

Loan req/day · Microcredit

1 DS

Shared · Ewally

How I work

End-to-end & cross-functional.

Product

Engineering

Marketing

Data

More cases

More complex product work.

Anti-Fraud · Operations · Pix

Pix Anti-Fraud Operations

Internal tooling for fraud analysts to monitor, investigate and act on suspicious Pix transactions in real time.

Shell · Strategy · Discovery

Shell · Cross-country product discovery

Mapped divergent Argentina and Brazil product roadmaps into a unified design strategy.

Fintech · Credit · Onboarding

Microcredit experience

Redesigned the microloan request flow to achieve 150+ daily loan requests on mobile.

Brand · Product · Launch

Finperx · From brand to launch

End-to-end design for Finperks — brand identity through product screens — twice.

Shell · Promo · Visual

Shell · Ferrari promo UI

High-stakes promotional campaign interface for Shell's Ferrari partnership.

Fintech · Onboarding · Identity

Digital account onboarding

Compliant, low-friction onboarding for digital account opening — balancing KYC with a warm experience.

Pix · Self-service · Support

Reclaiming a Pix key

Simplified the contested-Pix-key recovery process into a confident self-service flow.

"I turn complex rules into flows that engineers can ship and users can trust."

— Tomás Oliva, Product Designer

Core strengths

Complex flows & states

95%

Design systems

90%

Stakeholder alignment

85%

Research & discovery

88%

AI-assisted workflow

82%

About

Designer. Strategist. Fintech native.

Based in Buenos Aires, working globally. I design products that operate in regulated, high-complexity environments — where getting the details right isn't optional.

My background spans product design, branding, digital marketing, and motion — giving me unusual range across the full product lifecycle.

Years by discipline

Product Design

7+

Graphic Design & Branding

10+

Digital Marketing

10+

Motion & Animation

5+

◎

Product thinking

Strategy, discovery

⌥

Complex systems

Multi-state flows

◈

Visual craft

Type, layout, motion

⟡

Collaboration

Eng, PM, brand, data

⊞

Design systems

Tokens → delivery

⬡

ES · PT · EN

Three markets

End-to-end.

01

Discover

Research, interviews, heuristics, competitive analysis

02

Define

Problem framing, flows, system mapping, constraints

03

Design

Wireframes, prototypes, design system, iteration

04

Deliver

Handoff, QA support, metrics, post-launch iteration

Open to work

Let's build

something real.

Let's talk →

oliva.tomas@gmail.com

+54 9 2342 457441

Tomás Oliva

designer-tom.com

LinkedIn

oliva.tomas@gmail.com

Buenos Aires / Remote · 2026

oliva.tomas@gmail.com

+54 2342 457441