Lena Fischer
Senior UX/UI Designer · Product Design · Design Systems
Senior Product Designer with 6 years of experience creating intuitive web and mobile products for fintech and e-commerce. Led the redesign of a banking app used by 1.2M customers, raising its store rating from 3.4 to 4.7. Strong in user research, interaction design and building scalable design systems in close collaboration with engineering.
Employment
Senior Product Designer
Lumen Bank GmbH, Berlin
Apr 2022 – Present
- Led the end-to-end redesign of the mobile banking app (1.2M users); App Store rating rose from 3.4 to 4.7.
- Built and maintain the Lumen design system in Figma with 140+ components and tokens shared with iOS, Android and web.
- Ran 60+ user interviews and usability tests per year; onboarding completion improved by 28%.
- Coached 4 designers and established a weekly design critique across product squads.
Tools: Figma, FigJam, Maze, Lottie, Storybook, Jira
UX/UI Designer
Kaufhaus Digital GmbH, Berlin
Jul 2019 – Mar 2022
- Redesigned checkout for an online fashion retailer, lifting conversion by 14% in A/B tests.
- Created responsive interfaces and micro-interactions for web shop and app.
- Partnered with data analysts to turn funnel insights into design hypotheses.
Tools: Sketch, Figma, Hotjar, Optimizely, Adobe Creative Cloud
Education
B.A. Communication Design
2015 – 2019
Berlin University of the Arts (UdK), Germany
Focus on interaction design. Graduation project: accessible ticketing app for public transport.
Certifications & Training
Google UX Design Professional Certificate
2021
Coursera · Google
Accessibility for Designers (WCAG 2.2)
2023
Interaction Design Foundation
Skills
Design
Product Design, Interaction Design, Visual Design, Prototyping
Research
User Interviews, Usability Testing, Journey Mapping, A/B Testing
Systems
Design Systems, Design Tokens, Accessibility (WCAG)
Tools
Figma, Sketch, Maze, Adobe CC, Lottie, basic HTML/CSS
Languages
German — Native
English — C1
Spanish — A2