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Head of Growth

Proton· CC - Growth - Inbox
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Hybrid (London, Paris, Geneva)Posted 7mo ago

About the role

Head of Growth to own product-led growth for Proton Mail & Calendar, aligning product-led and marketing-led growth efforts, owning growth roadmap and metrics.

Responsibilities

  • Own the end-to-end user funnel, including signup, onboarding, activation, free-to-paid conversion, upgrade paths, and retention, and identify where friction or leverage exists at each stage
  • Design and ship in-product growth experiments (onboarding flows, activation nudges, paywalls, upsell moments, referral and invite mechanics) in close partnership with product managers and engineers
  • Partner closely with product marketing, influencer, social, and performance marketing teams to develop cross-functional growth strategies that connect top-of-funnel acquisition with in-product activation and retention
  • Partner with the other product teams on core Mail and Calendar features that maximise retention and LTV
  • Build and own a rigorous experimentation pipeline, including hypotheses, A/B tests, instrumentation, and clear read-outs that inform both the product and marketing roadmaps
  • Identify and build virality and network-effect loops (referrals, sharing, collaboration features) that drive organic growth, coordinating with marketing on how these loops are amplified externally
  • Define the core growth metrics for the business (activation rate, conversion rate, retention/churn, LTV, referral coefficient, etc.) and be directly accountable for moving them
  • Partner with data and analytics teams to build the instrumentation and dashboards needed to see the funnel clearly and act on it
  • Synthesize user research and behavioral data into product and marketing bets that improve the funnel, acting as the user's advocate inside planning across both functions
  • Directly influence the product roadmap, treating growth as a core input into what gets built next

Qualifications

  • Proven experience owning product-led growth at a SaaS or consumer tech product, having built or scaled onboarding, activation, conversion, or retention systems from inside the product
  • Experience working cross-functionally with marketing teams (product marketing, performance, social, influencer) to align product and marketing growth efforts
  • Fluency in experimentation: designing tests, understanding statistical validity, and knowing when a result is actionable versus noise
  • Strong technical and analytical fluency, comfortable in product analytics tooling, and able to speak credibly with engineers about implementation trade-offs
  • Experience building or scaling virality and referral mechanics, ideally in a product with network effects
  • Leadership by influence, with the ability to align product, engineering, marketing, and data stakeholders outside your reporting line around a shared growth vision
  • A strong bias toward shipping and testing, matching Proton's culture of hands-on builders
  • A cost-efficient, scrappy mindset, as Proton is bootstrapped and wins through smart execution rather than big budgets
  • Comfort with ambiguity and a willingness to make bold, high-conviction calls about where the growth potential lives in the product

Skills

Required:Product-led growthExperimentation & A/B testingCross-functional leadership

Benefits

  • Work that Matters: millions of people trust Proton with their privacy
  • A great Team: diverse, collaborative, top academic institutions background
  • Technology: right hardware and software to do your best work
  • Learning & Development: investment in growth and real ownership from day one
  • Employee Benefits: strong health coverage, retirement options, generous leave, wellness support
  • Stock Options: real stake in the company from day one
  • In-Person Collaboration: offices across Geneva, Zürich, Barcelona, London and more
  • Food: lunch and snacks provided in offices
  • Transport: cover public transport, bike allowances, or parking
  • Flexible Working: own your schedule, outcomes matter more than hours
Last updated Jul 30, 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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