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Modernizing product design across a large employee benefits ecosystem

Modernizing product design across a large employee benefits ecosystem

Client

Global employee benefits and digital payments company

My role

Senior Product Designer

Timeline

2022 – 2024

Overview

The problem

The product ecosystem had grown over years of business expansion, legacy platforms and team changes. I had to move across e-commerce journeys, mobile apps, client spaces, partner portals, back-offices, payment flows and design systems, often taking over work started by other designers. The challenge was to modernize key experiences while keeping delivery moving across several teams, deadlines and older technologies.

The solution

I helped redesign and maintain several digital products across an employee benefits and digital payments ecosystem. I worked with designers, product teams, developers and stakeholders to simplify journeys, strengthen UI consistency, document reusable patterns and take over sensitive projects quickly when needed.

Who I worked with

Partners from product framing to delivery

Shaping product direction

Head of Design

Product managers

Product owners

Business stakeholders

Marketing teams

Sales teams

Turning designs into products

Developers

Designers

External partners

Customer support teams

Merchant partners

Junior designers

What I worked on

Benefits, payments and CSE platforms

Design systems

E-commerce journeys

Partner portals

Client spaces

Back-office products

Payment and security flows

What I worked on

Benefits, payments and CSE platforms

Design systems

E-commerce journeys

Partner portals

Client spaces

Back-office products

Payment and security flows

What I worked on

Benefits, payments and CSE platforms

Design systems

E-commerce journeys

Partner portals

Client spaces

Back-office products

Payment and security flows

Approach

Modernizing a mature product ecosystem without slowing delivery

Four moves to improve key experiences across benefits, payments, e-commerce, mobile apps, partner portals and back-office products.

Map the product landscape

Understand the existing products, teams, design systems and inherited work before changing anything.

Modernize critical journeys

Redesign high-value user flows across e-commerce, mobile, partner and payment experiences.

Connect design systems and teams

Improve reusable patterns, documentation and handoffs across different design and product teams.

Deliver under pressure

Take over sensitive projects quickly, keep work moving and support delivery across short deadlines.

Modernizing a mature product ecosystem without slowing delivery

Four moves to improve key experiences across benefits, payments, e-commerce, mobile apps, partner portals and back-office products.

Map the product landscape

Understand the existing products, teams, design systems and inherited work before changing anything.

Modernize critical journeys

Redesign high-value user flows across e-commerce, mobile, partner and payment experiences.

Connect design systems and teams

Improve reusable patterns, documentation and handoffs across different design and product teams.

Deliver under pressure

Take over sensitive projects quickly, keep work moving and support delivery across short deadlines.

Modernizing a mature product ecosystem without slowing delivery

Four moves to improve key experiences across benefits, payments, e-commerce, mobile apps, partner portals and back-office products.

Map the product landscape

Understand the existing products, teams, design systems and inherited work before changing anything.

Modernize critical journeys

Redesign high-value user flows across e-commerce, mobile, partner and payment experiences.

Connect design systems and teams

Improve reusable patterns, documentation and handoffs across different design and product teams.

Deliver under pressure

Take over sensitive projects quickly, keep work moving and support delivery across short deadlines.

01. Map the product landscape

Before redesigning anything, I had to understand how the ecosystem had been built over time. Products came from different teams, older platforms, design systems and business needs. I often had to step into work started by other designers, read the logic behind it, identify what could move and what had to stay, then turn that into a usable direction.

Product ecosystem mapping

Focus areas

  • Legacy platforms

  • Existing user journeys

  • Design system gaps

  • Team ownership

  • Handoff context

  • Business priorities

  • Technical reality

Product ecosystem mapping

Focus areas

  • Legacy platforms

  • Existing user journeys

  • Design system gaps

  • Team ownership

  • Handoff context

  • Business priorities

  • Technical reality

Inherited design work

Fast onboarding

  • Existing files

  • Past decisions

  • Ongoing delivery

Inherited design work

Fast onboarding

  • Existing files

  • Past decisions

  • Ongoing delivery

Product coverage

Across the ecosystem

  • E-commerce

  • Mobile apps

  • Partner portals

  • Back-office products

Product coverage

Across the ecosystem

  • E-commerce

  • Mobile apps

  • Partner portals

  • Back-office products

02. Modernize critical journeys

A large part of the work was about improving journeys that directly impacted users, clients, partners and business operations. I worked on browsing, checkout, authentication, client spaces, partner flows and mobile experiences. The goal was to make these journeys easier to understand, more consistent and easier to ship.

E-commerce experience

From browse to purchase

  • Navigation

  • Product pages

  • Checkout

E-commerce experience

From browse to purchase

  • Navigation

  • Product pages

  • Checkout

Security and payment flows

Built for trust

  • MFA journeys

  • Payment steps

  • Error states

Security and payment flows

Built for trust

  • MFA journeys

  • Payment steps

  • Error states

Critical journey redesign

Focus areas

  • Navigation

  • Product discovery

  • Checkout flows

  • Authentication

  • Partner onboarding

  • Client space flows

  • Responsive behaviour

Critical journey redesign

Focus areas

  • Navigation

  • Product discovery

  • Checkout flows

  • Authentication

  • Partner onboarding

  • Client space flows

  • Responsive behaviour

03. Connect design systems and teams

The work was not only about screens. I also helped maintain and improve reusable design assets so teams could work with more consistency across products. I cleaned files, organized components, documented patterns and helped other designers understand how to use the system. This made the design work easier to read, easier to reuse and easier to hand off.

Shared product design bridge

04. Deliver under pressure

I often had to move between products, teams and inherited files without much time to ramp up. Some products had been shaped over years, with older technologies, existing habits and decisions made by other designers before me. My role was to understand the logic quickly, take ownership where needed and keep delivery moving without lowering the quality of the work.

Fast project takeover

Focus areas

  • Inherited files

  • Existing decisions

  • Short deadlines

  • Legacy platforms

  • Product logic

  • Team handoffs

  • Delivery follow-up

Fast project takeover

Focus areas

  • Inherited files

  • Existing decisions

  • Short deadlines

  • Legacy platforms

  • Product logic

  • Team handoffs

  • Delivery follow-up

High-stakes scopes

Risk areas

  • Sensitive products

  • Large audiences

  • Payment flows

High-stakes scopes

Risk areas

  • Sensitive products

  • Large audiences

  • Payment flows

Reliable delivery

how I worked

  • Audit

  • Redesign

  • Handoff

Reliable delivery

how I worked

  • Audit

  • Redesign

  • Handoff

Impact

Dimension

The outcome

Consistency

Reusable patterns, cleaner files and stronger documentation helped make product work easier to read, reuse and maintain across several teams and platforms.

Velocity

I was able to take over existing projects quickly, understand previous decisions and keep delivery moving across short timelines and active product teams.

Quality

Key journeys were redesigned with stronger UX/UI decisions across e-commerce, partner portals, client spaces, mobile apps, payment flows and back-office products.

Trust

Teams could rely on me to handle sensitive projects, recover inherited work and deliver clean, usable designs without needing months of onboarding.

Scale

The work supported a wide employee benefits and digital payments ecosystem, from consumer-facing journeys to business platforms and operational products.

The real value was not another screen. It was making high-stakes products easier to own, improve and ship.

Dimension

The outcome

Consistency

Reusable patterns, cleaner files and stronger documentation helped make product work easier to read, reuse and maintain across several teams and platforms.

Velocity

I was able to take over existing projects quickly, understand previous decisions and keep delivery moving across short timelines and active product teams.

Quality

Key journeys were redesigned with stronger UX/UI decisions across e-commerce, partner portals, client spaces, mobile apps, payment flows and back-office products.

Trust

Teams could rely on me to handle sensitive projects, recover inherited work and deliver clean, usable designs without needing months of onboarding.

Scale

The work supported a wide employee benefits and digital payments ecosystem, from consumer-facing journeys to business platforms and operational products.

The real value was not another screen. It was making high-stakes products easier to own, improve and ship.

©2026 Guillaume Dusseux-Gicquel

guillaume.dusseuxgicquel@gmail.com

©2026 Guillaume Dusseux-Gicquel

guillaume.dusseuxgicquel@gmail.com

©2026 Guillaume Dusseux-Gicquel

guillaume.dusseuxgicquel@gmail.com