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Fabian Mohr, Founder and CEO of 

UnitPlus

"Lisa is one of the most talented product designers I’ve had the pleasure to work with. Her purpose-driven approach consistently results in outstanding work, and her keen eye for detail sets her apart. Lisa’s ability to view UX and UI from multiple perspectives leads to innovative and user-centric designs. On top of that, she brings a positive energy to the team, making her both a joy to work with and an invaluable team player.

Lisa, I hope I will get the pleasure to work with you again."

Hello,
I'm Lisa.

Work experience

I am an accomplished Senior Product Designer with six years of experience in enhancing user experiences in the financial sector, complemented by an extensive background in user research. Proven ability to lead design initiatives and collaborate effectively with cross-functional teams to deliver user-friendly interfaces that increase CVR. Expertise in design systems and user research drives the creation of intuitive solutions that simplify complex concepts. Passionate about leveraging behavioral insights to elevate user engagement and commitment. Ready to tackle global projects and push the boundaries of fintech design.

Taxfix - 2022 - Today
Senior Product Design
er

As a Senior Product Designer at Taxfix, the focus has been on enhancing user experiences for financial solutions. This role involves leading design initiatives, collaborating with cross-functional teams, and ensuring the delivery of user-friendly interfaces. Regular user testing and feedback integration are part of refining designs and improving product functionality.

  • Championed the design of intuitive interfaces that simplify novel financial concepts

  • Conducted extensive user research (moderated and unmoderated, qualitative and quantitative) to identify pain points and opportunities for enhancing the product

  • Worked closely with product managers and data analysts to align design strategies with business goals

  • Facilitated design workshops to create innovation, engage stakeholders, and gather valuable insights for iterative improvements.

  • Refined design systems to ensure brand consistency and scalability

  • Developed high-fidelity mock-ups and style guides to communicate designs to stakeholders

  • Championed the hand-off phase to deliver pixel-perfect outcomes while keeping engineers well-informed and able to work independently by writing detailed hand-off documentation tickets in JIRA

  • Identified crucial business issues and drove improvements that led to a 10x reduction in the processing time of legal updates

  • Continuously contributing to Taxfix' Design System, most recently with data import cards and patterns for displaying auto-filled data

  • Contributed to an app redesign initiative that overhauled every single screen in the Taxfix product on mobile and web, using a responsive design system with new principles and engineering documentation, contributed to pattern templates in the design system

  • Reporting to the VP of Design at Taxfix

Taxfix - 2021-2023
Product Designer
  • Onboarding, user flows, user research

  • Opt-in experiments

  • Quantitative and qualitative surveys

  • Top funnel experiments for calculating refunds early on

  • Design vision projects

Tomorrow University - 2022 until Today
Product Design Mentor
  • Mentoring master students of Tomorrow University in the field of sustainable entrepreneurship.

  • My role is to sharpen the students' perspective of their target users

  • share my expertise on testing product hypotheses with users so they can uncover their user's greatest needs and thereby their ideas' greatest potential.

UnitPlus Bank - 09/2020-01/2021
Product Design Consultant
  • Created a pitch deck for a novel way of banking that fetched a 7-figure seed funding 

  • Presented in investor pitches together with the founders

  • Created product visualizations and card visualizations

  • Drafted the early brand identity of UnitPlus, along text styles color scheme and Logo

Element AG - 2019- 2020
UX/UI Designer
  • Developed wireframes and prototypes to demonstrate product ideas and features to stakeholders

  • Created a design system that improved design consistency across all product features and reduced design iteration time by 50%

  • Collaborated with developers to ensure product designs are implemented accurately and consistently

  • Analyzed user feedback and data to identify areas of improvement and inform product decisions

  • Developed interactive animations and visuals that enhanced user engagement and improved user understanding of complex products

© 2025 LISA NELHIEBEL

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