I trained as an architect. Then I spent 25 years designing and building software, teams, and organizations. The thread connecting all of it: making complex things work for people.

I started at Amazon during its European expansion, then spent 14 years at 1&1 building products for 30 million users. From there: enterprise platforms at censhare, industrial tools at KUKA and BMW, PropTech at casavi. Always B2B, always complex workflows, always the kind of products where "intuitive" means something different than consumer apps.

Along the way I've led teams of up to 16 people, built design systems with 100+ components, run international research programs, and driven product strategy alongside C-level leadership. I've also redesigned how teams work together: org structures, decision-making patterns, the invisible friction that keeps good people from shipping good work. Service design at the organizational scale.

What changed recently: I build with AI every day. This website, a community platform (Next.js + Sanity CMS), a structural engineering tool, automation pipelines. All built with Claude Code as my development partner. I keep the tool stack lean: curiosity, human-centric thinking, and one good AI tool go further than a shelf full of frameworks.

That hands-on practice matters. I know where AI accelerates real work (prototyping, code generation, pattern analysis) and where it generates confident nonsense (strategic decisions, qualitative research, anything requiring taste). That experience informs how I think about AI-augmented products and teams.

I never stopped making things myself. The leadership grew from the craft, not the other way around. I'm a player-coach: I can work at the C-level table and I can ship the prototype that night.

Based in Munich. Open to permanent roles, consulting, or embedded project work.

Experience

2025 – present

Independent

Munich

Building with AI daily: this portfolio site, a community platform (Next.js + Sanity CMS), a structural engineering tool (Konva.js canvas), CV generation pipelines, multi-agent workflows. Completing Digital Product Manager certification (IU Akademie). Designing and shipping, not just advising.

2023 – 2024

Head of Product Design

casavi

Led product design for PropTech SaaS platform serving 2,500+ property managers. Built design team from scratch, established design system with 80+ components. Drove product strategy alongside CEO and CPO.

2021 – 2022

Lead Product Designer

MaibornWolff

Consulting for enterprise clients including BMW and KUKA. Delivered complex B2B interfaces and industrial applications. Introduced user research practices to development-focused teams. Led workshops with stakeholders across three countries.

2019 – 2021

Head of UX Design

censhare

Transformed legacy enterprise DAM software used by global marketing teams. Built and led team of three designers. Implemented design system with 100+ components. Conducted international user research. Reduced user onboarding time by 60%.

2004 – 2018

Head of UX / UI

1&1 / GMX

Consumer-facing web products for one of Europe's largest email providers with 30M+ users. Led design through multiple platform migrations. Established UX practice within engineering-driven organization.

2000 – 2003

Senior UX Designer

Amazon EU

E-commerce optimization during Amazon's European expansion. Retail platform design, checkout flow improvements, localization for German market.

Let's Talk

I'm looking for a role where I can design and build. Whether that's a senior IC position, a player-coach leading a small team, or embedded consulting on a complex product. If you need someone who thinks strategically but still ships, let's talk.

Book a 30-minute call

Or reach out directly:
sriess@pm.me · LinkedIn