Senior Product Designer, AI & Web (f, m, d)

OH-SO Digital

10d

About The Position

OH-SO is a startup digital agency working across ecommerce, marketing, automotive, and other industries. Its work includes Shopify and Next.js ecommerce experiences, customised websites built with Next.js and React, digital platforms, AI tools, and integrations. The agency applies AI across its work and treats product design, communication design, UI, and content as connected disciplines. Projects vary in length and scope, from builds lasting several months to shorter explorations of how businesses can use AI. The Senior Product Designer owns projects or major workstreams and is accountable for their outcomes and craft quality. The role designs AI-enabled products and platforms, including conversational and agentic interfaces, generative features, and the trust, transparency, and error states needed to make them usable. The designer works closely with engineering from early sketches through live implementation, including prototyping in code and quality assurance of the implemented product. The role also sets design direction across product, content, and brand-in-product work; owns project design-system architecture; and serves as the primary design contact for clients. It leads workshops and client conversations, guides teams of two to five designers and adjacent crafts, reviews and signs off work, and mentors junior and intermediate designers. The designer helps develop AI-enabled ways of working and shares effective practices with the wider team. The position is based within a company with offices in Hamburg, Prague, Berlin, and Munich; no specific work arrangement is stated.

Requirements

Fluent German at C1 level or native, and very good English.
Typically five or more years of experience designing digital products, with a portfolio demonstrating end-to-end ownership from concept to launched product.
Recognised expertise in two or three areas, such as AI-native design, design systems, brand in product, or communication design.
Hands-on experience designing for generative or agentic AI, with a clear understanding of interface failure points and how to design for them.
Use AI as a daily working tool for research, exploration, prototyping, and production, applying personal craft and judgment to every output before release.
Working understanding of modern web development, including components, states, responsive layout, performance, and animation in React and Next.js; ability to read and prototype code and communicate with engineers in their terms.
Expert Figma skills, including auto layout, variables, components, Dev Mode, and Code Connect, and experience creating design systems that engineering teams adopt and maintain.
Ability to treat writing and interface language, including copy for AI-driven interfaces, as part of design.
Build accessibility in from the start, including WCAG, and test and validate work.
Ability to translate business goals into design decisions, make trade-offs explicit, decide, and stand by decisions.
Confidence facilitating client workshops, design sprints, and critiques with clients, strategy, and engineering.

Nice To Haves

Represent OH-SO externally through case studies, talks, and articles.

Responsibilities

Own entire projects or major workstreams across product, content, and brand in product, and define what completion means in product and communication terms.
Shape the main creative idea with Strategy and Content and drive design direction across surfaces.
Design AI-native experiences, including conversational UX, prompt-aware patterns, agentic flows, and transparency, trust, and error states.
Own project design-system architecture, including tokens, components, governance, Code Connect, and handover documentation.
Pair with engineers throughout builds, prototype in code when useful, and conduct design quality assurance against live implementations.
Serve as the primary design contact for clients; lead workshops, handle difficult conversations, defend quality, and say no when needed.
Lead project teams of two to five designers and adjacent crafts, review and sign off their work, and mentor Junior and Intermediate designers.
Use AI to define new ways of working and share effective practices, including prompt libraries, generation playbooks, skills, and delivery patterns.
Optionally represent OH-SO externally through case studies, talks, and articles.
Test and validate design work and translate findings into design decisions.
Facilitate workshops, design sprints, and critiques with clients, strategy, and engineering.