Head of Product Design

4 weeks ago


Southampton, United Kingdom Downstream Full time

Head of Product Design (UI/UX, AI-Forward) - Contractor Downstream · Open to employees in Austria, Belgium, France, Germany, Italy, Liechtenstein, Luxembourg, Monaco, Netherlands, Portugal, Spain, Switzerland, and the United KingdomAbout DownstreamDownstream is transforming the construction industry by building a marketplace for equipment rentals, portable toilets, and roll-off dumpsters. We are scaling fast. Our vision: bring price transparency, automation, and intelligence into one of the most manual, underserved verticals in the economy.We’re inspired by clean design and modern architecture—and we’re pushing forward with AI-native product thinking, not bolting it on later.The RoleWe’re hiring a Head of Product Design (UI/UX) who is obsessed with creating intuitive, elegant, and impactful user experiences. You’ve shipped something before—whether at a startup that scaled, a product that users loved, or a platform that redefined a workflow. You know the pain of turning complex problems into simple, usable solutions, and you want another shot at shaping an industry from 0 → 1.At Downstream, you’ll work directly with our CEO, CTO, and Product team to:Define and own the design vision for our marketplace, supplier tools, and customer experience.Lead end-to-end design for web and mobile, including UX flows, UI systems, and visual identity.Architect AI-native product experiences that feel intuitive, not artificial—helping users trust automation and agents in critical workflows.Collaborate with engineers and product managers to ship fast: prototype, test, iterate, and refine.Build and scale our design system so we can move quickly without sacrificing quality.ResponsibilitiesDrive the product design strategy across customer, supplier, and internal platforms.Build and maintain UI/UX standards that reflect simplicity, trust, and efficiency.Design AI-native experiences—where agentic systems interact seamlessly with users, data, and decisions.Conduct user research and usability testing with construction industry stakeholders.Mentor and grow a design team as we scale.What We’re Looking ForBattle-tested designer: You’ve shipped real products (startup, marketplace, SaaS, or similar).AI-forward mindset: You don’t just add AI—you design around it, making it feel natural and empowering.Builder’s DNA: Comfortable with ambiguity, speed, and iteration. You’ve felt the pain of building in the real world and still want more.Technical & design skills:UI/UX design (Figma, Sketch, or equivalent)Strong UX research and prototyping chopsDesign systems and component librariesUnderstanding of modern frontend frameworks (bonus: Flutter, React)Experience designing for AI interactions (chat, agents, workflows)Startup mentality: Hands-on, resourceful, willing to go beyond your job title.Industry experience: Construction tech or marketplaces a huge plus—someone who can empathize with our users.Nice-to-HavesExperience in marketplaces, logistics, SaaS, or fintech.Familiarity with B2B workflows and procurement tools.Contributions to open-source design systems or AI products.Why DownstreamEarly-stage, high-growth startup with real traction.Work with a small, sharp, and ambitious product + engineering team.Opportunity to shape AI-native product experiences in an industry that hasn’t seen this level of innovation before.Competitive salary + equity



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