Senior Product Manager (New Product Line & Portfolio Growth)

Senior Product Manager at Appstero for new product line & portfolio growth. Full-time, hybrid in Warsaw. Competitive salary. Own subscription business and launch consumer privacy & security product (iOS+Android).

Appstero is looking for a Product Manager to strengthen the current subscription business and launch a new consumer product in privacy & security (iOS + Android). The role is hands-on IC-to-lead: you decide what to build and why based on cohorts and real user behavior, and take it through launch. Responsibilities: - Own end-to-end product strategy for two directions: existing portfolio and new privacy & security product - In the first 6 weeks, validate willingness-to-pay and pricing on current products, build UX for the new product MVP, and take it to soft launch in CA/AU, then US/UK - Prioritize roadmap based on funnels, cohorts, churn curves, LTV/CAC — not intuition but data - Design and interpret experiments around onboarding, pricing, paywalls, retention - Work closely with engineers on scope decisions and with the growth team on acquisition and monetization mechanics - Connect product decisions to conversion, retention, ARPU, LTV at different horizons - Ensure engineers, design, growth, marketing, and support move in the same direction

Requirements: - 5+ years in product management with proven independent ownership of a consumer product from strategy to launch and measurable results - Experience with consumer mobile subscription products, where you personally influenced activation, conversion, retention, churn, or LTV - Strong quantitative fluency: funnels, cohorts, churn curves, LTV/CAC models — ability to make prioritization calls independently - Hands-on experimentation mindset — A/B tests around onboarding, pricing, paywalls, retention - Strong consumer UX instincts and comfort in scope discussions with engineers - Experience building or evolving an MVP under real time/resource constraints - Commercial mindset — product decisions in terms of conversion, retention, ARPU, LTV - Ownership, low-ego, high-accountability, strong cross-functional communication - English from B2 Nice to have: - Experience in consumer privacy, cybersecurity, VPN, password management, or related subscription categories - Experience with App Store / Google Play launches and subscription pricing mechanics (plans, trials, paywalls, packaging) - Experience partnering with performance marketing / growth teams transitioning to product-led / owned growth - Experience with AI-powered consumer products — ability to distinguish genuinely useful AI capabilities from positioning features

Employment: full-time Work format: hybrid, Warsaw (2 days office, 3 remote) Salary: competitive, discussed individually