Public profile

Sarah Klein

UX / Product Designer

Explore selected projects, practical skills, and experience presented through the lens of Sarah Klein’s ux / product designer profile.

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[email protected] Berlin

Projects

Skills

4 yrs 4 mo

Work exp.

2 yrs 9 mo

Study time

Member since June 2026

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Featured Projects

1 highlight

Featured project

Mobile banking redesign

Featured

Mobile banking redesign

Task success in usability tests rose from 62% to 91%.

Problem

Users struggled to find core actions and abandoned key flows.

Solution

Ran research, restructured navigation and built a new component library in Figma.

figma User research Prototyping

View case study

Selected Projects

Case studies showing the path from user research to a shipped, measurable design outcome.

Generated cover

Mobile banking redesign

Project

Mobile banking redesign

Task success in usability tests rose from 62% to 91%.

End-to-end redesign of a retail banking app focused on everyday tasks.

SaaS onboarding flow

Activation within the first session improved by 28%.

A guided onboarding experience for a B2B analytics platform.

Design system foundations

Cut design-to-build time and removed visual inconsistencies.

A token-based design system unifying three product surfaces.

Skills

Research-led product design skills spanning discovery, interaction design and design systems.

Technical

User research

Advanced

Level: Advanced

Experience: 3 yr(s)

Last used: May 1, 2026

Prototyping

Advanced

Level: Advanced

Experience: 3 yr(s)

Last used: June 1, 2026

Design systems

Advanced

Level: Advanced

Experience: 3 yr(s)

Last used: May 1, 2026

Accessibility (WCAG)

Intermediate

Level: Intermediate

Experience: 2 yr(s)

Last used: April 1, 2026

Tools & Frameworks

Figma

Level: Expert

Experience: 4 yr(s)

Last used: June 1, 2026

Languages

English

Expert C2 — working language in an international team.

German

Expert Native speaker.

Soft Skills

Communication

Level: Expert

Experience: 5 yr(s)

Formal design education backed by ongoing UX research practice.

Education History

BA Communication Design at Berlin University of the Arts

Communication & Interaction Design

October 2018 — July 2021

Berlin

Studied visual communication, interaction design and design research.

Achievements

Graduation project on inclusive mobile interfaces.

Skills Learned

Figma Accessibility (WCAG)

Work Experience

Three years designing digital products across fintech and SaaS.

Product Designer

Current

Lumen Fintech

Sep 2023 — Present · Berlin · Hybrid · Full-time

Overview

Designing core flows for a consumer fintech product.

Responsibilities

Lead research and interaction design for key features
Maintain and extend the design system

Achievements

Redesign lifted task success to 91%
Established the first shared component library

Tech used

Figma User research Design systems

UX Designer

Cobalt SaaS

Jan 2022 — Aug 2023 · Remote · Remote · Full-time

Overview

Owned onboarding and activation design for a B2B platform.

Responsibilities

Run usability tests
Design and prototype onboarding flows

Achievements

Improved first-session activation by 28%

Tech used

Figma User research Prototyping