Senior Product Designer (m/f/d)

Description

Your mission

• Take full ownership of the end-to-end product design process, working on clearly defined problems in close collaboration with the Product Team — from ideation and prototype testing to ready-to-ship visual designs.
• Collaborate with our existing Product Designer to evolve our design language and ensure a cohesive experience across both sides of the platform.
• Work hand-in-hand with our product and engineering teams, identifying high-impact UX opportunities and delivering solutions that are technically feasible and ship fast.
• Translate concepts into high-fidelity designs, adhering to and maintaining our scalable design system in Figma.
• Craft clear, engaging UI copy to guide users through the product.

Your profile

Must-have:

• 3–5 years of experience as a Product Designer in a well-known B2B SaaS company or high-growth SaaS startup.
• Proven ability to design complex, desktop-first B2B web applications end-to-end — from problem framing to interaction design and handoff, ideally demonstrated in your portfolio.
• Strong product thinking: Ability to find pragmatic “80/20” solutions that balance user value, technical constraints, and business goals.
• Expert-level Figma skills and experience collaborating with other designers in shared workspaces, including component libraries and design systems.
• Self-driven, outcome-oriented, able to work independently while communicating trade-offs and constraints clearly.
• Native German speaker with fluent English.

Nice-to-have:

• Experience using AI-assisted coding tools (like Claude code, cursor etc) to build realistic, functional prototypes.
• Foundational understanding of HTML/CSS to ship smaller improvements to the product or website yourself.
• UX copywriting experience.

Why us

• You'll shape a product that solves real-life problems in the construction industry and see the results of your work in the hands of real users.
• You’ll work in an open-minded, collaborative, and international team where your ideas are valued.
• Choose to work fully remote (within Germany) or from our modern office in Berlin Friedrichshain.
• Regular company and team events (offline and online).
• Competitive compensation, a permanent contract, and modern work equipment.
• An open feedback culture with regular 1-on-1s to support your professional development.

About us

Cosuno – Revolutionizing construction through technology.

We are Cosuno – a fast-growing tech startup that is making the construction industry more efficient and transparent with our digital platform for tenders and procurement processes. Our goal: to solve the most complex challenges in the industry with innovation and simplicity.

Why Cosuno?

Artificial intelligence is the key to our solution: it analyzes millions of price data points and helps construction companies create precise and efficient bids. This not only saves our customers time but also helps them avoid unnecessary costs.

But for us, it's not just about technology – it's about the people who drive it. At Cosuno, you will work with creative minds who are reshaping the construction industry. We believe in diversity because we know that the best ideas come from different perspectives. An integrative and inclusive work environment is a matter of course for us.

Join us – Build the future of construction.