Sven is available for hire
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Verified Expert in Design
Designer
Tacherting, Bavaria, Germany
Toptal member since September 27, 2021
Bio
Sven designs complex interfaces that feel simple, including AI platforms, energy management systems, medical devices, and financial dashboards. With over 20 years of experience, he works seamlessly in Figma and code, and uses AI tools to increase his speed by 5–10x. Sven builds scalable, living design systems, bringing senior expertise, startup-level speed, and a deep love for typography and clean interfaces.
Experience
- Product Design - 18 years
- UX Design - 18 years
- UI Design - 18 years
- Dashboard Design - 15 years
- Complex Application User Interfaces (UI) - 15 years
- Design Systems - 15 years
- Figma - 7 years
- React - 3 years
Portfolio
AI Home Inspection Mobile App
Claude CodeFlutterFigmaAI ToolsArtificial Intelligence as a Service (AIaaS)Artificial Intelligence (AI)+ 30 more
VarioGuide Alignment Dialog
Adobe Experience Design (XD)Complex Application User Interfaces (UI)Complex Problem SolvingUI Style GuidesInterface TestingUser Testing+ 38 more
Work Experience
Head of Product and Design
2025 - PRESENT
Aeyes
- Took the product from zero to market launch in under one year as co-founder and sole designer, owning strategy, research, design system, and prototyping end-to-end.
- Designed an AI trust vocabulary incorporating confidence intervals and classification transparency, enabling home inspectors to rely on AI outputs without second-guessing results.
- Reduced post-inspection reporting from hours to minutes by designing a camera-centric mobile workflow optimized for real field conditions.
- Built a complete design system from scratch in Figma, covering iOS mobile app and desktop CRM, scalable for future product growth.
- Conducted field research with home inspectors in real working conditions, validating workflows and uncovering insights that directly shaped core product decisions.
- Prototyped the desktop CRM in HTML, CSS, and JavaScript, enabling faster iteration and more precise engineering handoff than Figma alone.
Technologies: AI Tools, Figma, Claude Code, Cursor AI, Flutter, Zed, Markdown, Xcode, Feature Analysis, Feature Planning, Component Design, Data, Claude, Web Application Design, Complex Web Systems, Software as a Service (SaaS), User Management, Feature Prioritization, System Design, iOS App Design, Style Guides, Web UI, Web Fonts, App UX, Software Design, Figma Prototyping, AI-powered Product Design, AI Design, AI Product Strategy, AI Programming, Software
Staff Interface Designer
2024 - 2026
Baind AG
- Built a component-based design system in React and Shadcn with a component index, enabling AI-assisted feature development without hallucinations or design drift.
- Designed AI/ML interfaces that made complex building automation outputs understandable and trustworthy for non-technical users.
- Simplified complex building management workflows, reducing cognitive load for facility managers handling multi-sensor energy data.
- Established design system governance across web and mobile, ensuring consistency as the product scaled across multiple platform surfaces.
- Designed energy optimization interfaces that translated dense real-time sensor data into clear, actionable decisions for building operators.
Technologies: AI Tools, Figma, Claude Code, Cursor AI, Figma Prototyping, Charts, Component Design, Feature Planning, Data, Claude, Web Application Design, Complex Web Systems, Software as a Service (SaaS), UX Audits, User Management, Feature Prioritization, System Design, Style Guides, Web UI, Web Fonts, App UX, AI-powered Product Design, AI Design, AI Programming, Storybook, React, Next.js
Senior Product Designer
2023 - 2024
Vaillant Deutschland
- Designed a complex web app and helped installers plan heat pump installations and manage clients, integrating many previous apps.
- Improved and advanced a complex heat pump planning application using an existing Figma design.
- Planned and conducted user research using the existing customer base.
Technologies: HTML UI, Figma, Tailwind CSS, Tailwind UI, HTML, CSS, Product Design, App UI, Web UI, Interactive Prototypes, Rapid Interactive Prototyping, Interactive UI, Testing, UI Testing, UX Testing, User-centered Design (UCD), Cross-functional Collaboration, Cross-functional Design, Analytical Thinking, Web Applications, AI Tools, Next.js, Figma Prototyping, Interface Design, UX Consulting, React, Charts, Enterprise System Design, Component Design, Claude Code, Feature Analysis, Data, Web Application Design, Software as a Service (SaaS), UX Audits, User Management, Feature Prioritization, System Design, Style Guides, Web Fonts, App UX
UI/UX Designer
2022 - 2022
Mochila Fulfillment LLC
- Created a design system for the B2B logistics web app and created a working prototype based on it.
- Prototyped various pages to use as marketing material.
- Solved complex UI problems around controling of handling delivery items.
Technologies: Web App Design, UI Design, UX Design, B2B, Enterprise Design, HTML, CSS, Tables, UI Style Guides, SaaS Design, Design Systems, Dashboard Design, Dashboards, Digital Product Design, Prototyping, Typography, Responsive Web Apps, Complex Problem Solving, Product Design, Web Design, User Experience (UX), Web App UI, Web App UX, Mockups, Web Applications, Responsive UI, Mobile Design, Wireframing, User Interface (UI), DataViz, Low-fidelity Mockups, Low-fidelity Prototypes, Interaction Design (IxD), Custom Solutions, Web UI Design, Design, Information Architecture (IA), Data Visualization, Web Dashboards, Responsive Web Design (RWD), Web UX Design, Responsive Design, Consulting, SaaS, Tailwind CSS, Startups, New Product Development, UX Wireframes, Product Discovery, Visual Design, Rapid Interactive Prototyping, Analytical Thinking, Analytical Dashboards, Tailwind UI, Interface Design, Web Application Design, Software as a Service (SaaS), User Management, Web UI
UI/UX Designer
2021 - 2022
Maxtel Software Ltd
- Set up a design system to rapidly prototype product ideas using HTML/CSS and test them in real-world payroll scenarios to inform platform improvements.
- Facilitated regular workshops to completely rethink the existing product structure and propose a new and simplified approach.
- Simplified a very complex product to a more user-friendly version.
Technologies: Web App Design, User Journeys, Web App UX, Web App UI, User Interface (UI), User Experience (UX), Wireframing, High-fidelity Mockups, HTML, CSS, Tailwind CSS, Complex Application User Interfaces (UI), Web UX, Web UI, Design Systems, UI Style Guides, Product Design, Product Discovery, Digital Product Design, App Design, Mobile UI Design, Prototyping, Desktop App Design, Typography, Responsive Web Apps, Complex Problem Solving, App UX, App UI, Mobile UX, UX Design, SaaS Design, Web Design, Information Design, Mockups, Web Applications, Responsive UI, Dashboard Design, Mobile App Design, Mobile App UI, Mobile UI, Mobile UX Design, Mobile Design, iOS App Design, iOS Design Guidelines, DataViz, Low-fidelity Mockups, Low-fidelity Prototypes, Interaction Design (IxD), Custom Solutions, Web UI Design, Design, Information Architecture (IA), Design Patterns, Workflow, Data Visualization, Dashboards, Web Dashboards, Analytical Dashboards, Financial Reporting Dashboards, Responsive Web Design (RWD), B2B, Enterprise Design, Web UX Design, Redesign, Responsive Design, Android, Mobile, Consulting, SaaS, Enterprise SaaS, UX Prototyping, UI Prototyping, Rapid Interactive Prototyping, Software Prototyping, Rapid Prototyping, UI Components, New Product Development, UX Wireframes, Visual Design, Design Thinking, Ideation, Interactive Prototypes, User-centered Design (UCD), Cross-functional Collaboration, Cross-functional Design, Tailwind UI, Software Design, Interface Design, UX Consulting, Feature Analysis, Data, Web Application Design, Software as a Service (SaaS), UX Audits, User Management, Style Guides, Web Fonts, Software
Senior UX Designer
2018 - 2021
Brainlab
- Designed a tablet user interface for a mobile CT scanner used by surgeons during surgery. Made it easy and failsafe for operating under stressful conditions.
- Explored and researched the possibilities, constructed the first concept, and designed a prototype for Magic Leap in the hospital environment. Worked on a challenging project because there was a lack of good prototyping tools.
- Led a team effort to modernize, optimize, and fix the existing interface library and style guide without disrupting the day-to-day business.
Technologies: Adobe Experience Design (XD), Prototyping, Complex Application User Interfaces (UI), UI Design, Usability, Digital Product Design, Desktop App Design, Typography, Readability, Complex Problem Solving, App UX, User Testing, App UI, Mobile UX, Product Design, UX Design, Web Design, Information Design, User Experience (UX), Web App UI, Web App UX, Mockups, Web Applications, Wireframing, Design Leadership, High-fidelity Mockups, User Interface (UI), User Journeys, DataViz, Low-fidelity Mockups, Low-fidelity Prototypes, Interaction Design (IxD), Figma, User Requirements, Interface Testing, Custom Solutions, User Flows, Design, Design Patterns, Workflow, Data Visualization, Enterprise Design, App Design, User Research, Usability Testing, Medtech, Medical Software, Internet of Things (IoT), UX Prototyping, UI Prototyping, Software Prototyping, Enterprise, Rapid Prototyping, UI Components, New Product Development, UX Wireframes, Product Discovery, Visual Design, User Interviews, Design Thinking, Ideation, Interactive Prototypes, Rapid Interactive Prototyping, User-centered Design (UCD), Cross-functional Design, Analytical Thinking, Software Design, Interface Design, UX Consulting, Enterprise System Design, Feature Analysis, Remote User Testing, Feature Prioritization
Senior UX Designer
2018 - 2018
KI Labs (part of KI Group)
- Created a concept and prototype—based on artificial intelligence—in HTML and CSS for the chemical marketplace.
- Developed an idea, prototype, and final design for a connect truck project based on artificial intelligence. Helped with a conference organization in Lisbon to launch a local incubator for this company.
- Created a concept, prototype, and final design for a mobile app that helped sell electric cars for a prominent German car manufacturer.
Technologies: HTML, CSS, Sketch, Usability, Digital Product Design, Prototyping, Responsive Web Apps, Complex Problem Solving, App UI, Product Design, SaaS Design, Web Design, User Experience (UX), Web App Design, Web Applications, Responsive UI, Mobile App Design, Mobile UI, Mobile UX Design, Mobile Design, Wireframing, Design Leadership, High-fidelity Mockups, User Interface (UI), User Journeys, iOS App Design, iOS Design Guidelines, DataViz, Low-fidelity Mockups, Low-fidelity Prototypes, Figma, Custom Solutions, Web UI Design, Design, Information Architecture (IA), Data Visualization, Dashboards, Responsive Web Design (RWD), Web UX Design, Redesign, Responsive Design, Mobile, Consulting, SaaS, Internet of Things (IoT), UX Prototyping, UI Prototyping, Startups, Rapid Prototyping, New Product Development, UX Wireframes, Product Discovery, Visual Design, Mobile-first Design, Rapid Interactive Prototyping, MVP Design, Design Thinking, Mobile Web, Mobile Apps, Software Design, Figma Prototyping, Data, Software as a Service (SaaS), Remote User Testing, Fintech, Web UI, App UX
Senior UX Designer
2017 - 2018
Ottonova
- Redesigned the product and company's website entirely; optimized the page load times and sales funnel.
- Integrated a CMS to help the marketing team build different sites for the A/B testing.
- Helped fix problems and added missing elements to the company's style guide.
Technologies: HTML, CSS, Sketch, Usability, Digital Product Design, Prototyping, Typography, Responsive Web Apps, Web Design, User Experience (UX), Responsive UI, Mobile Design, Wireframing, High-fidelity Mockups, User Interface (UI), Low-fidelity Mockups, Low-fidelity Prototypes, Interaction Design (IxD), Personas, Figma, Design, Information Architecture (IA), Responsive Web Design (RWD), Web UX Design, Responsive Design, Rapid Interactive Prototyping, New Product Development, UX Wireframes, Product Discovery, Visual Design, Accessibility, Design Thinking, Ideation, Mobile Web, Style Guides, Reading Interfaces, Web Fonts
Senior UX Designer
2017 - 2017
Talentry
- Designed a shareable snippet of a specific job to help employees share the job postings with their friends and followers, which was challenging as the content had to be adjusted to different social networks.
- Created a concept and design for the company's back-end editor, which enabled employees to add, edit, or share jobs.
- Designed various eye-catching reward graphics in Sketch.
Technologies: HTML, CSS, Sketch, Web UI, Complex Application User Interfaces (UI), UI Design, Usability, Prototyping, Web Design, User Experience (UX), Web Applications, Wireframing, High-fidelity Mockups, User Interface (UI), Low-fidelity Mockups, Low-fidelity Prototypes, High-fidelity Prototypes, Personas, Interaction Design (IxD), Custom Solutions, Design, Design Patterns, UI Prototyping, Startups, UX Wireframes, Visual Design, Design Thinking
Senior UX Designer
2016 - 2017
Allianz
- Created a concept, prototype, and final app for an internal case management app to help the company process case files faster.
- Conducted extensive research with the internal users and built a concept based on the users' needs.
- Helped the internal design team members to evolve their daily design work to focus more on HTML and CSS.
Technologies: HTML, CSS, Sketch, Prototyping, Complex Application User Interfaces (UI), UI Design, Usability, Digital Product Design, Typography, Readability, Responsive Web Apps, Complex Problem Solving, User Testing, Product Design, SaaS Design, Web Design, User Experience (UX), Web App UI, Mockups, Web Applications, Responsive UI, Dashboard Design, Mobile UI, Mobile Design, Wireframing, Design Leadership, High-fidelity Mockups, User Interface (UI), Low-fidelity Mockups, Low-fidelity Prototypes, Personas, Interaction Design (IxD), User Requirements, Custom Solutions, User Flows, Design, Design Patterns, Workflow, Dashboards, Responsive Web Design (RWD), B2B, Enterprise Design, Web UX Design, Responsive Design, Consulting, SaaS, Enterprise SaaS, UI Prototyping, Enterprise, New Product Development, UX Wireframes, Product Discovery, Visual Design, Accessibility, Rapid Interactive Prototyping, MVP Design, Design Thinking, Ideation, Software Design, Interface Design, UX Consulting, Enterprise System Design, Web UI, Web Fonts, App UX
Senior UX Designer
2014 - 2016
Cliqz
- Created a concept, prototype, and final design for a mobile search app that respects privacy. The app was built in HTML and CSS for optimal user testing.
- Planned and executed extensive user testing in a controlled setting.
- Created the product landing page, including a content management system.
Technologies: HTML, CSS, Sketch, Framer Prototyping, Complex Application User Interfaces (UI), UI Design, Usability, Mobile UI Design, Digital Product Design, Prototyping, Desktop App Design, Typography, Readability, Responsive Web Apps, Complex Problem Solving, App UX, User Testing, App UI, Mobile UX, Product Design, UX Design, SaaS Design, Web Design, Information Design, User Experience (UX), Web App Design, Web App UI, Web App UX, Mockups, Web Applications, Responsive UI, Dashboard Design, Mobile App Design, Mobile App UI, Mobile UI, Mobile UX Design, Mobile Design, Wireframing, Design Leadership, High-fidelity Mockups, User Interface (UI), User Journeys, iOS App Design, iOS Design Guidelines, DataViz, Low-fidelity Mockups, Low-fidelity Prototypes, Interaction Design (IxD), High-fidelity Prototypes, Interface Testing, Custom Solutions, Web UI Design, Design, Information Architecture (IA), Design Patterns, Workflow, Data Visualization, Dashboards, Responsive Web Design (RWD), Web UX Design, Responsive Design, Android, Mobile, App Design, Consulting, User Research, Usability Testing, SaaS, UX Prototyping, UI Prototyping, Rapid Interactive Prototyping, Startups, Rapid Prototyping, UI Components, New Product Development, UX Wireframes, Product Discovery, Visual Design, User Interviews, MVP Design, Design Thinking, Ideation, Mobile Web, Mobile Apps, Native Mobile Apps, Software Design, Interface Design, Charts, Web Application Design, Remote User Testing, Reading Interfaces, Web UI
Lead UX Designer
2005 - 2014
BoerseGo
- Built a concept, prototype, and final design for a completely new financial app that is still the primary revenue stream for the company.
- Established and led a design team for several years.
- Created and built a company-wide design system and style guide.
Technologies: HTML, CSS, Sketch, Framer, Complex Application User Interfaces (UI), UI Design, Usability, Mobile UI Design, Digital Product Design, Prototyping, Desktop App Design, Typography, Readability, Responsive Web Apps, Complex Problem Solving, App UX, User Testing, App UI, Mobile UX, Product Design, UX Design, SaaS Design, Web Design, Information Design, User Experience (UX), Web App Design, Web App UI, Web App UX, Mockups, Web Applications, Responsive UI, Dashboard Design, Mobile App Design, Mobile App UI, Mobile UI, Mobile UX Design, Mobile Design, Wireframing, Design Leadership, High-fidelity Mockups, User Interface (UI), User Journeys, iOS App Design, iOS Design Guidelines, DataViz, Low-fidelity Mockups, Low-fidelity Prototypes, Fintech, Interaction Design (IxD), Interface Testing, User Requirements, Custom Solutions, User Flows, Financial UX, Web UI Design, Design, Information Architecture (IA), Design Patterns, Workflow, Data Visualization, Dashboards, Web Dashboards, Analytical Dashboards, Financial Reporting Dashboards, Responsive Web Design (RWD), B2B, Enterprise Design, Web UX Design, Redesign, Responsive Design, Android, Mobile, App Design, Consulting, SaaS, UX Prototyping, UI Prototyping, Rapid Interactive Prototyping, Software Prototyping, Enterprise, Rapid Prototyping, UI Components, New Product Development, UX Wireframes, Product Discovery, Visual Design, Mobile-first Design, Design Thinking, Ideation, Mobile Web, Mobile Apps, Native Mobile Apps, Software Design, Interface Design, Enterprise System Design, Charts, Data, Web Application Design, Software as a Service (SaaS), User Management, Feature Prioritization, Style Guides, Web UI, Web Fonts
Certifications
NOVEMBER 2015 - PRESENT
Interaction Design Specialization
University of California | via Coursera
AUGUST 2012 - PRESENT
Interface Design Bootcamp
Smashing Mag Conference
JULY 2011 - PRESENT
UsabilityWeek London
Nielsen Norman Group
SEPTEMBER 2009 - PRESENT
Masterclass of Art Direction
MCAD
Skills
Tools
Claude, Figma Prototyping, Adobe Experience Design (XD), Framer Prototyping, AI Tools, Sketch, Xcode
Languages
HTML, CSS, Markdown
Platforms
Figma, Mobile, Web, Android, Visual Studio Code (VS Code)
Other
Usability, UI Design, Complex Application User Interfaces (UI), Web UI, Interaction Design (IxD), Prototyping, Typography, Readability, Responsive Web Apps, Web Fonts, App UX, App UI, User Requirements, Style Guides, Mobile UX, User Flows, Product Design, UX Design, SaaS Design, User Experience (UX), Web Design, Information Design, Web App Design, Web App UI, Web App UX, Web UI Design, Mockups, Dashboard Design, Mobile App Design, Mobile App UI, Mobile UI, Mobile UX Design, Mobile Design, Wireframing, Design Leadership, High-fidelity Mockups, User Interface (UI), User Journeys, iOS App Design, Low-fidelity Mockups, Low-fidelity Prototypes, High-fidelity Prototypes, Design, Information Architecture (IA), Design Patterns, Workflow, Data Visualization, Dashboards, Web Dashboards, Analytical Dashboards, Financial Reporting Dashboards, Responsive Web Design (RWD), B2B, Enterprise Design, Web UX Design, Redesign, Responsive Design, App Design, Design Systems, Mobile UI Design, Digital Product Design, SaaS, Enterprise SaaS, Tailwind CSS, UX Prototyping, UI Prototyping, Rapid Interactive Prototyping, Software Prototyping, Startups, Enterprise, MVP Design, Rapid Prototyping, Tables, UI Components, New Product Development, UX Wireframes, Minimalism, Feature Prioritization, Web UX, Product Discovery, Visual Design, Mobile-first Design, Design Thinking, Ideation, Tailwind UI, Interactive Prototypes, Data-driven Design, Software as a Service (SaaS), Complex Web Systems, Web Application Design, IoT Design, Charts, Mobile Web, Software Design, Interface Design, UX Consulting, Cursor AI, Claude Code, AI Programming, Framer, Desktop App Design, Reading Interfaces, Complex Problem Solving, UI Style Guides, User Testing, Interface Testing, Business Requirements, Custom Solutions, Stakeholder Management, Responsive UI, iOS Design Guidelines, Fintech, Consulting, User Research, Usability Testing, System Design, Medtech, Medical Software, Internet of Things (IoT), User Management, User Interviews, Accessibility, UX Audits, Remote User Testing, Atomic Design, Next.js, React, Energy, Data, Enterprise System Design, Component Design, Feature Planning, Feature Analysis, Native Mobile Apps, Svelte, Zed, AI Design, AI Product Strategy, UX Research, Personas, Financial UX, Web Applications, DataViz, Landing Pages, HTML UI, Interactive UI, Testing, UI Testing, UX Testing, User-centered Design (UCD), Cross-functional Collaboration, Cross-functional Design, Analytical Thinking, Artificial Intelligence as a Service (AIaaS), Artificial Intelligence (AI), Industrial IT, Data Analysis, Data Analytics, WebApp, Analytics, Mobile Apps, Flutter, AI-powered Product Design, Storybook, Software
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