Maik-Sebastian Rieffenstahl

Digital service, warranty and insurance platform for kitchens. I own UX across the customer app, the B2B partner platform and the website, plus both design systems and the design process. Freelance, embedded.

• Rebuilt the customer app from a non-functional state into a production mobile product. Customers now file claims in the app instead of by phone.
• Designed the B2B partner platform: a CRM for kitchen partners and internal teams with role-based views, public at the area30 trade fair in 2026.
• Built and maintain two design systems that share tokens and code components across app and platform, with an audit that keeps them aligned per release.
• Working with AI since summer 2024, first for my own work, then in the design process: Figma Make from its first months, AI tooling in the company workflow from early 2026, now an end-to-end setup with published Figma skills, Jira automation, design system extraction and a company-wide knowledge base.
• Founded and run the design board in Jira, and write dev-facing tickets spec-forward so engineering implements without asking.
• Lead one junior designer at a time and wrote the team’s Figma contribution workflow: branch per ticket, review by comment, merge checklist.
• Own the marketing website in Framer: CMS content, partner landing pages and trade fair pages.
• Shipped against trade fair deadlines three years running and a partner product go-live in 2026.

• Stabilised two legacy products in the first months: platform modules, consistent formal German across all surfaces, first design hub in Confluence.
• Laid the foundation of the design practice: Figma file structure, the handoff flow between design and development, and the first version of the app design system.
• Delivered the customer app MVP and its booking funnel, from payment flow to error and success states.

• Built a Figma design system from scratch for a live ad-tech product: primitives, components and patterns.
• Documented every component state on manual spec sheets, before Figma Dev Mode existed.
• Carried the rebrand through the component layer so the team applied it once instead of on every screen.

• Run digital for Germany’s most successful water polo club and its swim school: website, information architecture and the swim course booking flow.
• Design the templates and imagery the club communicates with: Instagram content, news posts, Mailchimp newsletters and match photography, aligned across club and swim school.
• Build campaigns that turn Instagram reach into course bookings and memberships, with tracked links so results can be measured.