Daniel Treufeld
Senior Designer with focus on UX/UI
Experience
As an employee and freelancer
Senior UX/UI Designer with 10+ years of experience building user-centered, accessible and scalable digital products. Certified in Digital Accessibility (Deque University). Experienced in agile environments, strong in stakeholder communication, and passionate about international, cross-functional collaboration.
02/2023 – present
ZEISS Digital Partners
Senior Designer UX/ UI
ZEISS Academy (ZEISS Portal) – Cross-Functional Team
- Optimized course booking flow based on user research and interviews, improving usability and reducing booking time
General
- Raised accessibility awareness through internal lectures, contributing to the hiring of a dedicated accessibility specialist
- Primary UX responsibilities in each team: Leading UX strategy, information architecture, competitive analysis, user journey mapping, stakeholder interviews, user research (qualitative/quantitative) and creating low/high fidelity prototypes (Sketch, InVision, Figma) in collaboration with stakeholders, product owners, developers and researchers
06/2016 – 01/2023
Kaiser X Labs GmbH a company of Allianz AG
Senior Designer UX/ UI
Allianz Loyalty Program – Cross-Functional Team
- Restructured complex IA and purchase flow, improving findability and increasing logins by 35%
- Conducted usability and hallway tests; introduced accessibility enhancements and dynamic filtering.
Online Claims Navigator – Cross-Functional Team
- Designed Help Box and expectation logic; reduced support center calls significantly; NPS rose to +75
Allianz Health Insurance App (iOS/Adroid) – Cross-Functional Team
- Redesigned claims submission flow with SPA integration; reduced support inquiries by 60%
- App rated 4.7 (iOS) / 4.6 (Android) with 100k+ installs
Icon System
- Led design and rollout of icon system across Allianz platforms, aligning with brand and design system standards
General
- Development of a strategy for „Digital Accessibility“ for Kaiser X Labs GmbH, achieved by establishing awareness and mandatory seminars for developers and measured using OKRs
- Primary UX responsibilities in each team: Leading UX strategy, information architecture, competitive analysis, user journey mapping, stakeholder interviews, user research (qualitative/quantitative) and creating low/high fidelity prototypes (Sketch, InVision, Figma) in collaboration with stakeholders, product owners, developers and researchers
09/2014 – 06/2016
Holtzbrinck Publishing Group
Senior Designer UX/ UI
NetDoktor – Cross-Functional Team
- Improved navigation and access speed on NetDoktor through user testing and optimization
- Independent implementation and institutionalization of user testing in the company, conducting tests with employees (tasks were set to search the company website), evaluation through internal acceptance and subsequent expansion to further user testing with the users of the website
HELPSTER – Cross-Functional Team
- Development of a new brand and new website from scratch
- Launched new brand and high-performance website for HELPSTER, reducing load time by 80%
- Introduction and establishment of user testing in the company, through support of the UX Test Lab, evaluation through internal acceptance and subsequent expansion to further user testing with website users
- Optimization of advertising placement through Google Analytics, measured based on the evaluation in Google Analytics
General
- Primary UX responsibilities in each company: Leading UX strategy, information architecture, competitive analysis, user journey mapping, stakeholder interviews, user research (qualitative/quantitative) and creating low/high fidelity prototypes (Sketch, InVision, Figma) in collaboration with stakeholders, product owners, developers and researchers
08/2009 – 08/2016
Freelancer
Senior Designer UX/ UI
Worked as a freelancer for various clients. For example:
- Support at Deutsche Telekom AG Bonn P&I: new design library and new icons
- Designed new CD for Solution Seekers, supported strategy for German Doctors and BR’s “Ankommen” app
- Carrying out competitive analyzes and communicating with customers and stakeholders
- Developed and continuously enhanced expertise in HTML and CSS
Soft Skills
Rapid process adaptation
High willingness to learn
Personal responsibility
Strategic thinking
Interdisciplinary collaboration
Systemic thinking for embedding UX in
business and technology contexts
Self-efficacy and ownership mentality
Critical thinking and reflection skills
Business and user empathy
Facilitation skills
Anticipatory thinking
Perseverance and resilience
Conflict resolution skills
Skills
UX Methods
User Research, Usability Testing
Journey Mapping, IA, Wireframing
Competitor Analysis
Prototyping (Low/High Fidelity)
Design Focus
UI Design, Iconography, Illustration
Accessibility (Deque University certified)
Approach
Rapid iteration, user-centered design, systems thinking
Design & Prototyping
Figma, Sketch, InVision, Adobe XD, Illustrator, Photoshop
Workflow & Development
Jira, Azure DevOps, HTML/CSS
Presentation & Docs
Keynote, InDesign, Adobe CS, Google Presentation
Languages
German (native), English (fluent), Chinese (basic)
Initiatives & Awards
Initiatives
- Deputy Chair, Student Council, Dortmund – organized workshops & lectures
- Organizer, ZEISS Planetarium event “Electronic Night”
- Creator of “Lieschen” magazine, Symposium “33pt”
Awards
- Red Dot Junior Award, DDC Future Award, Die 100 besten Plakate
- Special Prize at Szene1 Award 2007
Education
Studies
Diplom Communication Design, Dortmund University of Applied Sciences (2004–2009)
Internships
kognito gestaltung (Berlin), Webdesign Bestisch
”Designers are not users.“
Jakob Nielsen
Ph.D. is a usability pioneer, Co-founder Nielsen Norman Group
Get My Resume and Portfolio as Printable PDFs
Daniel Treufeld Senior Designer UX / UI