App Marketing CRO Manager
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Job Description
App Marketing CRO Manager optimizing Saily’s secure eSIM app funnels through data-driven A/B testing. Driving experimentation across onboarding, paywall, upsell, and retention journeys.
Responsibilities:
- Develop data-driven hypotheses for in-app A/B tests across onboarding, paywall, upsell, and retention funnels
- Maintain a structured testing roadmap and backlog
- Plan, prioritize, and manage the full A/B testing lifecycle from hypothesis through execution and results analysis
- Collaborate with designers, developers, analysts, and marketing stakeholders to scope, build, and launch experiments
- Define success metrics and KPIs for each test
- Ensure proper data tracking and instrumentation for accurate measurement
- Monitor live experiments for data quality, statistical significance, and anomalies
- Flag and remove blockers that could delay launches or compromise results
- Analyze test outcomes and synthesize findings into actionable recommendations
- Communicate experiment status and results to relevant stakeholders
- Create and maintain documentation covering hypotheses, setup, audience, duration, results, and next steps
Requirements:
- Experience in digital marketing, CRO, or growth, with hands-on A/B testing involvement
- Solid understanding of experimentation methodology, including hypothesis design, sample sizing, statistical significance, and common pitfalls
- Familiarity with mobile app development processes and release cycles
- Experience with analytics and tracking tools such as Amplitude, Firebase, Mixpanel, or similar
- Strong verbal and written communication skills
- Data-driven decision-making mindset and strong analytical thinking
- Rigorous attention to detail, especially around data accuracy and test setup
- Ability to manage multiple experiments in parallel in a fast-paced environment
- Self-motivated and self-managing, comfortable owning the process end to end
- Solid organizational skills, including prioritization, time management, and stakeholder alignment
- Must be currently based in Poland and able to work from Poland
Benefits:
- Training, mentorship, and room to grow
- Extra vacation days, sick days, and time off when life calls
- Fully covered private health insurance in Lithuania and Poland
- Free subscriptions to Calm, Headspace, and Mindletic
- Resilience and mindfulness trainings
- In-house gyms, sport cards, online workouts, and personal guidance
- Company-wide trip abroad
- Work from wherever keeps you in the zone
- Gifts for birthdays, weddings, and new family members
- Children’s summer camps and schedule flexibility
- Team building and company events
- Access to Vilnius HQ facilities including coffee bar, open gyms, kids’ room, music room, and massage chairs
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