Senior Product Designer, Growth & Onboarding

Proton Technologies; Genf, Zürich; On-site; GBP 49,000 - 90,000; Full time

Benefits offered by this job

Health coverage

Stock options

Flexible schedule

Lunch and snacks

Transit support

Office across London

Job summary

Proton’s Design Team is seeking a Senior Product Designer for Growth to shape growth moments across Mail and Calendar, ensuring onboarding, activation, upgrades, and cross-product adoption feel polished and trustworthy.

You’ll partner with Growth Product Managers and Engineering as a co-owner of the roadmap, help define hypotheses, success metrics, and run experiments, while maintaining high craft and accessibility across Proton’s privacy-first products.

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.
• Experience with motion and micro-interactions in product UI.
• Experience partnering 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.

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.

Skills

Growth design

Typography

Visual craft

Motion design

Design systems

A/B testing

PM collaboration

AI prototyping

Education

Background in graphic design / visual communication

Tools

Figma

AI design tools

Job description

Proton’s Design Team is seeking a Senior Product Designer for Growth to shape growth moments across Mail and Calendar, ensuring onboarding, activation, upgrades, and cross-product adoption feel polished and trustworthy.

You’ll partner with Growth Product Managers and Engineering as a co-owner of the roadmap, help define hypotheses, success metrics, and run experiments, while maintaining high craft and accessibility across Proton’s privacy-first products.