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Senior Product Designer - Growth (Inbox)

Proton· CC - Product Design
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Hybrid (Paris, London)€49k - €90kfull-timePosted 3mo ago

About the role

Senior Product Designer for Growth at Proton, focused on growth moments across Mail and Calendar with a strong emphasis on trust, clarity, and premium experience. Co-owns roadmap with Growth PMs and Engineering, shaping onboarding, activation, upgrade, and cross-product adoption.

Responsibilities

  • 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.

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.

Skills

Required:Product designTypographyMotion designCollaboration with PMs

Benefits

  • Work that Matters: Millions of people trust Proton with their privacy.
  • A Great Team: Diverse, collaborative, and tight-knit.
  • Technology: The right hardware and software to do your best work.
  • Learning & Development: Growth-focused, with real ownership from day one.
  • Employee Benefits: Health coverage, retirement options, leave, and wellness support.
  • Stock Options: Ownership from day one.
  • In-Person Collaboration: Offices across Geneva, Zürich, Barcelona, London, and more.
  • Food: Lunch and snacks in the office.
  • Transport: Public transport, bike allowances, or parking.
  • Flexible Working: Outcomes matter more than clock-in times.
Last updated Oct 1, 2026. Interested? Apply on the company site.

About Proton

Privacy by default

Proton was started in 2014 by scientists who met at CERN and shared a vision of an internet that defends freedom and puts people first.

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