App Marketing CRO Manager | Mid-Senior

At Saily, we’re removing the hassle from getting secure data plans while traveling.

No roaming charges, no plastic SIM cards. Just fast, secure mobile data in 200+ countries. Join the team behind Lonely Planet’s #1 eSIM—built for explorers, powered by NordVPN.

Your impact? Helping people stay securely connected, wherever they go.

Main Responsibilities

• Develop data-driven hypotheses for in-app A/B tests across key marketing funnels (onboarding, paywall, upsell, retention) and maintain a structured testing roadmap and backlog;
• Plan, prioritize, and manage the full A/B testing lifecycle — from hypothesis through execution to results analysis;
• Work cross-functionally 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 is in place for accurate measurement;
• Monitor live experiments for data quality, statistical significance, and anomalies; proactively flag and remove blockers that could delay launches or compromise results;
• Analyze test outcomes and synthesize findings into clear, actionable recommendations; communicate status and results to relevant stakeholders throughout the process;
• Create and maintain comprehensive documentation for each experiment (hypothesis, setup, audience, duration, results, next steps).

• Experience in digital marketing, CRO, or growth — with hands-on A/B testing involvement;
• Solid understanding of experimentation methodology: hypothesis design, sample sizing, statistical significance, common pitfalls;
• Familiarity with mobile app development processes and release cycles;
• Experience working with analytics and tracking tools (e.g., Amplitude, Firebase, Mixpanel or similar);
• Strong communication skills (verbal and written) — able to translate test results into clear narratives for both technical and non-technical audiences;
• Data-driven decision-making mindset with 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.

• Innovate with industry leaders
• Work alongside global experts to build world-leading cybersecurity tools, impacting millions of users around the world.
• Learn & grow
• Boost your skills via our extensive training programs (online and offline) & other resources. Benefit from mentorship and career-switch opportunities to grow within the company.
• Work in a next-gen Cyber City office
• Thrive in our bustling office, featuring ergonomic workspaces, modern meeting rooms, engaging events, and specialty coffee to fuel your day.
• Work from anywhere
• Recharge with a change of scenery – choose work from any location when you feel a need to power your creativity and drive.
• Physical well-being
• Boost your health with free-of-charge 24/7 gym access, onsite and online workouts, and consultations led by in-house Physical Well-Being experts.
• Mental & emotional health
• Nurture your mind with free psychologist consultations, dedicated mental health events, and premium access to top-rated wellness apps like Calm, Headspace, and Mindletic.
• Premium healthcare
• Receive private health insurance giving you peace of mind for your health needs.
• Extra days off
• Enjoy additional vacation days off as you grow with us. Plus, get extra days for sick leave, special occasions, or parenting needs.
• Joyful moments – special treats
• Celebrate life’s big moments with special gifts from us on your birthday, anniversary, and other major events, such as weddings or the arrival of a new family member.
• Company events & team-building
• Experience iconic Nord Security celebrations, team-buildings, and knowledge-sharing events, nurturing bonds that fuel our success.
• Workation
• Embark on a legendary company getaway abroad, filled with exciting activities, live concerts, engaging workshops, and epic time together.