Product Designer

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WHO WE ARE

Zefir is building an AI autopilot for home sales in Europe, starting in France: an AI agent runs the entire sale and purchase journey end-to-end, orchestrating local brokers, portals, buyers, and documents.

Backed by over $55 million from top-tier investors like Sequoia Capital, we're committed to accelerating life changes for millions of current and future European homeowners.

PRODUCT TEAM

We’re building the first fully AI-based real estate experience in Europe, from the first search to the final signature. Our goal is simple: help users buy and sell on autopilot, by combining smart automation with human expertise.

We focus on high-impact, high-friction moments in the journey (pricing, visits, offers etc.), and design AI agents that act before users even have to ask. Beyond helping buyers and sellers, we also build powerful tools that enhance our partner agents’ daily work, from smarter visit scheduling to automated ad creation.
Our approach is pragmatic, data-driven, and built to deliver real outcomes, not just features.

RESPONSIBILITIES/MISSION

As a Product Designer, you'll shape the experience for our core users. You'll design the foundations of the platform: from seamless onboarding and conversion flows to smart systems and intuitive tools that make their daily work more efficient. You'll operate at the intersection of strategy, craft, and iteration, turning complex problems into simple, yet efficient solutions that drive real impact.

- Leading end-to-end design processes: from user research and discovery, through ideation and prototyping, to delivery and iteration.

- Designing thoughtful UX and pixel-perfect UI: crafting user flows, wireframes, high-fidelity mockups, ensuring scalable and visually coherent designs ready for development. We’re looking for hands-on builders, people who love to prototype, test, and get things done rather than wait for perfect conditions.

- Measuring impact and iterating continuously: defining and tracking success metrics using tools like Hotjar, Amplitude, and NPS to continuously refine your designs based on data-driven insights.

- Collaborating cross-functionally: closely working with Product Managers, Engineers, Operations, and stakeholders, ensuring design feasibility and seamless implementation.

- Contributing to the Design System and design culture: maintaining and expanding our design system, creating reusable components, and actively participating in team rituals such as reviews and retrospectives.

- Bridging tech, business, and product strategy: balancing engineering constraints with business outcomes, making design decisions aligned with strategic company goals.

QUALIFICATION

This role is perfect for you if you:

- Have 3–8 years of experience in product design. You’ve built and shipped impactful products, either by growing fast in a top-tier environment or by making your mark in a high-growth startup. Experience in tech-driven or marketplace products, where design meets business impact, is a strong plus.

- Have exceptional product sense. You think from first principles, identify leverage points, and turn complex problems into intuitive experiences that move the needle.

- Bring strong technical curiosity. You understand system trade-offs, collaborate seamlessly with engineers, and explore how AI can elevate your design craft.

- Have already designed AI-powered experiences, or show a strong, hands-on interest in how AI is reshaping product design.

- Rely on a quantitative and iterative mindset. You care about outcomes, use data to inform design decisions, and refine through fast feedback loops.

- Excel at collaboration and communication. You bring clarity, empathy, and alignment across teams through thoughtful design and storytelling.

- Operate with autonomy and initiative. You take ownership, push boundaries, and move fast without waiting for permission.

- Are fluent in English. All rituals and documentation are in English.

BENEFITS

THE FOLLOWING IS FOR PERMANENT EMPLOYEES ONLY. FOR OTHER CONTRACTS (INTERNS, APPRENTICES, FIXED-TERM..), PLEASE, CHECK WITH YOUR RECRUITER.

- Competitive salary: You can run your own simulation with our salary calculator https://www.zefir.fr/zefir-salary-calculator.

- BSPCE (Stock Options): Available for everyone, with monthly vesting after year one, over a 4-year period.

- Healthcare plan: Full coverage with Alan for team members, their partners, and children.

- Office in Le Peletier, Paris (9th arrondissement): With flexible remote work options.

- Swile meal card: €11 per worked day.

- Swile mobility card: €45/month to support sustainable transportation (metro, carpooling, biking…).

- Team events: Monthly Mixers to connect and share good times, and quarterly All Hands to celebrate wins across the company.

OUR OPERATING PRINCIPLES

🏔️ Steep Mountains Are Steep: Setting ambitious goals and working hard to achieve them.

🌊 Ride Reality: Actively seeking challenges and thriving by adapting flexibly to changes.

🏀 Play for the Front of the Jersey: Prioritizing team success over individual recognition.

APPLICATION & PROCESS

We welcome applications from anyone, regardless of background, gender, sexual orientation, religion, age, or experience. Our team values authenticity and diverse perspectives.

For all roles, our interview process emphasizes hands-on exercises, case studies, or discussions about specific examples of your previous work. We ensure objectives and expectations are clearly communicated at every step.

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