Senior Product Designer - Growth (Inbox)

Greenhouse Software, Inc.; Paris; Hybride; EUR 49 000 - 90 000; Plein temps

Avantages offerts par ce poste

Health coverage

Stock options

Flexible schedule

In-person collaboration across offices

Résumé du poste

Proton is seeking a Senior Product Designer for Growth (Inbox) to shape the moments that convert interest into trust across Mail and Calendar. You will own the growth journey, from discovery to upgrade, while maintaining a high craft bar and a user-centric mindset.

You will partner closely with Growth Product Managers and Engineering as a co-owner of the roadmap, ensuring growth experiences are clear, trustworthy, and on-brand across multiple apps and platforms.

Qualifications

• 5+ years of experience designing and shipping digital products with strong visual craft.
• A portfolio showing polished UI and work on growth, onboarding, or monetization.
• A sharp eye for typography, spacing, color, and iconography.
• Strong visual communication skills, with the ability to create visual elements for product experiences. A background in graphic design / visual communication is a plus.
• Experience with motion and micro-interactions in product UI.
• Experience partnering closely with Product Managers on strategy and roadmap.
• Experience running A/B tests or other product experiments and using results to make decisions.
• Experience building and evolving design systems.
• Strong Figma skills and experience using AI tools to explore ideas, create variants, or prototype faster.
• Good judgment about the line between persuasion and manipulation.

Responsabilités

• Own the growth moments across Mail and Calendar, including sign-up, onboarding, activation, upgrade, and cross-product adoption.
• Set a high visual bar for growth experiences, using typography, layout, color, and hierarchy to feel polished and premium.
• Design upsell and checkout flows, plan comparisons, and upgrade prompts that feel helpful rather than pushy.
• Use motion and micro-interactions thoughtfully to guide attention, clarify interactions, and communicate value.
• Partner with Product Managers to shape the growth roadmap: framing problems, sizing opportunities, and deciding which bets to make.
• Co-own experiments with Product Managers and Data, from defining hypotheses to test design and analysis.
• Maintain a high level of craft while moving quickly; even an experiment variant should be something you’d be proud to ship.
• Contribute components and guidelines to the design system for reusable growth patterns.
• Bring the user perspective into prioritization, advocating for experience quality when conversion goals conflict with UX.

Connaissances

Experience design

Figma

Motion & micro-interactions

A/B testing

Design systems

Collaboration with PMs

Visual craft

AI-assisted ideation

Outils

Figma

AI tools

Description du poste

Senior Product Designer - Growth (Inbox)

Paris, London

Join Proton and build a better internet where privacy is the default

Proton was founded in 2014 by scientists from CERN on a simple truth: privacy is a fundamental human right. Since then, we've built the world's largest encrypted email service (Proton Mail) and expanded into Proton VPN, Proton Drive, Proton Pass, and Proton Calendar — tools used by millions globally to protect their freedom, fight censorship, and keep their data safe. In some situations, Proton has literally helped save lives.

We are profitable, independent (no VC control), and selectively hire from the top ~1% of applicants. Our 700+ team members across 50+ countries come from leading organizations and elite academic backgrounds. We move fast, keep hierarchy light, and prioritize impact over optics. If you want to do meaningful work with exceptionally high-caliber people, this is it. Check our open-source projects here .

The Design Team

Proton's Design team shapes the visual and interaction layer across Mail, Drive, VPN, Pass, and Calendar — products used by millions of people, many of whom rely on them in high-stakes moments. We work at the intersection of security and simplicity: our products must inspire trust without feeling intimidating, and feel refined without sacrificing clarity. Designers are embedded within engineering teams and involved from the very beginning — problem framing, planning, implementation, and quality assurance — not brought in at the mockup stage. The team is organized as a guild: high autonomy, shared standards, and real influence over how design is practiced across Proton.

We hold a high craft bar. Typography, layout, spacing, color, iconography, motion — the details most companies treat as polish, we treat as the product. If your best work is the work itself — pixels you're proud to sign — you'll be in good company here.

The role

Growth at Proton works differently. We don’t sell user data, optimize for clicks at any cost, or use dark patterns. We track as little as possible and design growth around trust.

For us, growth means helping millions of people take back control of their digital lives. Every sign-up is someone choosing privacy, and every upgrade helps fund an internet that doesn’t depend on surveillance. That makes growth harder - but also far more meaningful.

As our Senior Product Designer for Growth, you’ll shape the moments that turn interest into trust and trust into long-term adoption: how people discover Proton, understand its value, get started, and bring more of their digital life into the ecosystem.

You’ll work closely with Growth Product Managers and Engineering as a true co-owner of the roadmap, shaping the problems we pursue, the bets we make, and how we measure success. You’ll ensure that every growth experience - from first impression to upgrade and expansion - feels as thoughtful, clear, and trustworthy as the products themselves.

What you'll do

• Own the key growth moments across Mail and Calendar, including sign-up, onboarding, activation, upgrade, and cross-product adoption.
• Set a high visual bar for growth experiences, using precise typography, layout, color, and hierarchy to make onboarding and upgrade moments feel polished and premium.
• Design upsell and checkout flows, plan comparisons, and upgrade prompts that feel helpful rather than pushy.
• Use motion and micro-interactions thoughtfully to guide attention, clarify interactions, and communicate value.
• Partner closely with Product Managers to shape the growth roadmap: framing problems, sizing opportunities, and deciding which bets to make.
• Co-own experiments with Product Managers and Data, from defining hypotheses and success metrics to test design, analysis, and deciding what to do next.
• Maintain a high level of craft while moving quickly; even an experiment variant should be something you’d be proud to ship.
• Make growth patterns reusable by contributing components and guidelines to the design system, so experiments can ship quickly while staying consistent and on-brand.
• Bring the user perspective into prioritization, and advocate for experience quality when conversion goals create tension with the user experience.

What we're looking for

• 5+ years of experience designing and shipping digital products with strong visual craft.
• A portfolio showing polished UI and work on growth, onboarding, or monetization.
• A sharp eye for typography, spacing, color, and iconography.
• Strong visual communication skills, with the ability to create visual elements for product experiences. A background in graphic design / visual communication is a plus.
• Experience with motion and micro-interactions in product UI.
• Experience partnering closely with Product Managers on strategy and roadmap.
• Experience running A/B tests or other product experiments and using results to make decisions.
• Experience building and evolving design systems.
• Strong Figma skills and experience using AI tools to explore ideas, create variants, or prototype faster.
• Good judgment about the line between persuasion and manipulation.

Nice to have

• Experience working on products with multiple apps or a broader product ecosystem.
• Strong illustration or icon design skills.
• Experience prototyping motion or interaction concepts.
• Experience working in a fast-moving experimentation or growth team.
• Familiarity with privacy-focused products or designing with strong ethical constraints.

What We Offer

• Work that Matters: Millions of people trust Proton with their privacy. We answer only to our users — not advertisers, not investors with conflicting agendas, not governments.
• A Great Team: Diverse, collaborative, and tight-knit, with people from MIT, Harvard, Stanford, Caltech, Cambridge, ETH, and more.
• Technology: The right hardware and software to do your best work.
• Learning & Development: We invest in your growth. Proton is one of the fastest ways to accelerate your career — real challenges, real ownership, from day one.
• Employee Benefits: Strong health coverage, solid retirement options, generous leave, and wellness support.
• Stock Options: From day one, you have a real stake in what we're building. When Proton wins, you win.
• In-Person Collaboration: Offices across Geneva, Zürich, Barcelona, London, and more. You'll spend most of your time collaborating face‑to‑face.
• Food: Lunch and snacks on us every day in the office.
• Transport: We cover public transport, bike allowances, or parking — whichever works for you.
• Flexible Working: You own your schedule. Outcomes matter more than clock‑in times.
• Compensation range
  Paris: 49,000 - 90,000 EUR gross annually*
  Other locations: Compensation will be discussed during the interview process
  *Final compensation will be determined based on the candidate's qualifications, skills, and previous experience

Our Commitment to Diversity and Inclusion

At Proton, we believe diversity drives innovation and strengthens our mission to provide privacy as a default for all. We are committed to fostering an inclusive environment where all individuals — regardless of race, ethnicity, gender, age, sexual orientation, physical ability, or socio-economic background — feel valued and empowered.

If you need any extra support or reasonable adjustments during the hiring process, please let your talent partner know.

Candidate Privacy Notice

When you apply for a position at Proton Technologies AG, your information is stored in Greenhouse in accordance with its Service Privacy Policy. This information is used to evaluate your suitability for the posted position and may be retained for future roles.

If we no longer have a legitimate business need to process your information, we will either delete or anonymise it. For questions about your data, contact: [e-mail]

Proton does not accept unsolicited CVs from any sources other than directly from candidates.