Available for work

Available for work

Hello, I am David. I design products people can trust.

Hello, I am David. I design products people can trust.

I work with product teams and founders in London,
from the first research interview to engineering handover.

I work with product teams and founders in London, from the first research interview to engineering handover.

SELECTED WORK

SELECTED WORK

Paper2Sim

AI answers scientists can check

Dense scientific papers become interactive simulations. I put every stage on screen, so researchers can check the answer before they rely on it.

Product Designer

AI research tool

Solo contract

Handed over

Dec 2025 to Mar 2026

Paper2Sim

AI answers scientists can check

Dense scientific papers become interactive simulations. I put every stage on screen, so researchers can check the answer before they rely on it.

Product Designer

AI research tool

Solo contract

Handed over

Dec 2025 to Mar 2026

Paper2Sim

AI answers scientists can check

Dense scientific papers become interactive simulations. I put every stage on screen, so researchers can check the answer before they rely on it.

Product Designer

AI research tool

Solo contract

Handed over

Dec 2025 to Mar 2026

Collectivault

A marketplace built on proof

An auction marketplace for sports memorabilia, where provenance decides every purchase. I took it from capstone research to 9 build-ready flows.

Product Designer

Collectibles marketplace

Capstone team, then solo

Handed over

Mar to Aug 2026

Collectivault

A marketplace built on proof

An auction marketplace for sports memorabilia, where provenance decides every purchase. I took it from capstone research to 9 build-ready flows.

Product Designer

Collectibles marketplace

Capstone team, then solo

Handed over

Mar to Aug 2026

Collectivault

A marketplace built on proof

An auction marketplace for sports memorabilia, where provenance decides every purchase. I took it from capstone research to 9 build-ready flows.

Product Designer

Collectibles marketplace

Capstone team, then solo

Handed over

Mar to Aug 2026

HeartMind

Meditation, minus the noise

A meditation app where experienced practitioners build their own sessions. They asked for less, so I designed less, without streaks or badges.

Product Designer

Meditation app

Certification project

Built with a developer

2025

HeartMind

Meditation, minus the noise

A meditation app where experienced practitioners build their own sessions. They asked for less, so I designed less, without streaks or badges.

Product Designer

Meditation app

Certification project

Built with a developer

2025

HeartMind

Meditation, minus the noise

A meditation app where experienced practitioners build their own sessions. They asked for less, so I designed less, without streaks or badges.

Product Designer

Meditation app

Certification project

Built with a developer

2025

WORKING WITH ME

WORKING WITH ME

01

Listen first

Before I open Figma, I talk to the people who will use the product. For Collectivault, my team and I spoke with more than forty fans, collectors, and investing experts; for Paper2Sim, scientists already let down by AI tools. What they tell me becomes the brief.

01

Listen first

Before I open Figma, I talk to the people who will use the product. For Collectivault, my team and I spoke with more than forty fans, collectors, and investing experts; for Paper2Sim, scientists already let down by AI tools. What they tell me becomes the brief.

01

Listen first

Before I open Figma, I talk to the people who will use the product. For Collectivault, my team and I spoke with more than forty fans, collectors, and investing experts; for Paper2Sim, scientists already let down by AI tools. What they tell me becomes the brief.

02

Map every flow

Next, your team and I map every flow, step by step, until we agree on how the product should work. On Collectivault, that meant nine flows, from sign-up to owning a share of an item. Only then do I design a screen, so every screen answers a question we have already settled.

02

Map every flow

Next, your team and I map every flow, step by step, until we agree on how the product should work. On Collectivault, that meant nine flows, from sign-up to owning a share of an item. Only then do I design a screen, so every screen answers a question we have already settled.

02

Map every flow

Next, your team and I map every flow, step by step, until we agree on how the product should work. On Collectivault, that meant nine flows, from sign-up to owning a share of an item. Only then do I design a screen, so every screen answers a question we have already settled.

03

Design in one system

I build every screen from one shared design system, so the product stays consistent as it grows, and engineers can reuse each part. My years in graphic design taught me that the details people barely notice are often the ones that earn their trust.

03

Design in one system

I build every screen from one shared design system, so the product stays consistent as it grows, and engineers can reuse each part. My years in graphic design taught me that the details people barely notice are often the ones that earn their trust.

03

Design in one system

I build every screen from one shared design system, so the product stays consistent as it grows, and engineers can reuse each part. My years in graphic design taught me that the details people barely notice are often the ones that earn their trust.

04

Test with real people

Real people try the design before engineers build it. I watch where they hesitate, ask why, and change what needs changing. On Paper2Sim, four testing sessions produced five specific changes, and every one went into the final designs.

04

Test with real people

Real people try the design before engineers build it. I watch where they hesitate, ask why, and change what needs changing. On Paper2Sim, four testing sessions produced five specific changes, and every one went into the final designs.

04

Test with real people

Real people try the design before engineers build it. I watch where they hesitate, ask why, and change what needs changing. On Paper2Sim, four testing sessions produced five specific changes, and every one went into the final designs.

05

Hand over with reasons

My files explain what to build and why, so engineers are not left guessing. On HeartMind, developer Michael Phillips wrote that my wireframes and prototypes ‘made it easy for me to understand what we were building and why each design decision mattered’.

05

Hand over with reasons

My files explain what to build and why, so engineers are not left guessing. On HeartMind, developer Michael Phillips wrote that my wireframes and prototypes ‘made it easy for me to understand what we were building and why each design decision mattered’.

05

Hand over with reasons

My files explain what to build and why, so engineers are not left guessing. On HeartMind, developer Michael Phillips wrote that my wireframes and prototypes ‘made it easy for me to understand what we were building and why each design decision mattered’.

WHAT PEOPLE SAY

WHAT PEOPLE SAY

“A proactive and independent design partner who will bring actionable insights to any team and project.”

Brian K. Petkov

CEO, Junction Bioscience

“Working with David on HeartMind showed me how good UX thinking transforms an idea into something people actually want to use.”

Michael Phillips

Developer, HeartMind

“He took the time to understand Hørning’s brand and vision, and his workflow was smooth and professional from start to finish.”

Audrey Lawton

UK Design Manager, Hørning Parket

“We were concerned about how easy to read it would be for older members, but Dave found good solutions to this.”

Vajragupta

Chair, Croydon Buddhist Centre

“A proactive and independent design partner who will bring actionable insights to any team and project.”

Brian K. Petkov

CEO, Junction Bioscience

“A proactive and independent design partner who will bring actionable insights to any team and project.”

Brian K. Petkov

CEO, Junction Bioscience

“Working with David on HeartMind showed me how good UX thinking transforms an idea into something people actually want to use.”

Michael Phillips

Developer, HeartMind

“Working with David on HeartMind showed me how good UX thinking transforms an idea into something people actually want to use.”

Michael Phillips

Developer, HeartMind

“He took the time to understand Hørning’s brand and vision, and his workflow was smooth and professional from start to finish.”

Audrey Lawton

UK Design Manager, Hørning Parket

“He took the time to understand Hørning’s brand and vision, and his workflow was smooth and professional from start to finish.”

Audrey Lawton

UK Design Manager, Hørning Parket

“We were concerned about how easy to read it would be for older members, but Dave found good solutions to this.”

Vajragupta

Chair, Croydon Buddhist Centre

EARLIER WORK

EARLIER WORK

Fifteen years of graphic design, from global rebrands to landmark London property developments.

Fifteen years of graphic design, from global rebrands to landmark London property developments.

GRAPHIC DESIGN

Complete brand identities and systems, from a century-old Danish flooring brand to a canal-side crêperie: logo to launch, design to print.

GRAPHIC DESIGN

Complete brand identities and systems, from a century-old Danish flooring brand to a canal-side crêperie: logo to launch, design to print.

PROPERTY MARKETING

Sales campaigns and brand guidelines for landmark London property developments totalling over 14,000 new homes.

PROPERTY MARKETING

Sales campaigns and brand guidelines for landmark London property developments totalling over 14,000 new homes.

WAYFINDING

National forecourt rebrands from Morocco to New Zealand, concept to installation, and interactive navigation concepts for the Thomson Reuters Innovation Centres.

WAYFINDING

National forecourt rebrands from Morocco to New Zealand, concept to installation, and interactive navigation concepts for the Thomson Reuters Innovation Centres.

GRAPHIC DESIGN

Complete brand identities and systems, from a century-old Danish flooring brand to a canal-side crêperie: logo to launch, design to print.

PROPERTY MARKETING

Sales campaigns and brand guidelines for landmark London property developments totalling over 14,000 new homes.

WAYFINDING

National forecourt rebrands from Morocco to New Zealand, concept to installation, and interactive navigation concepts for the Thomson Reuters Innovation Centres.

Looking for a product designer?
Get in touch.

Looking for a product designer?
Get in touch.

© 2026 David Esteban. All rights reserved.

Designed and built in Framer

© 2026 David Esteban. All rights reserved.

Designed and built in Framer

© 2026 David Esteban. All rights reserved.

Designed and built in Framer