About the role
About Us
Ruby Labs is a leading tech company that creates and operates innovative consumer products. We offer a diverse range of opportunities across the health, education, and entertainment industries. Our innovative teams are driving the future of consumer-led products, and we're always looking for passionate individuals to join us. Learn more about our story at: https://rubylabs.com/about-us/
About The Role
We are looking for a Mobile Growth Manager to take full ownership of monetization and retention for our AI LLM chat mobile app on iOS and Android. You will be accountable for how much revenue each mobile user generates and for how long they stay.
This is a senior, hands-on role with end-to-end ownership. You own the funnel from store listing to first session, trial, paid conversion, renewal and win-back. You decide what to test, what to scale and what to cut, and you are accountable for the results. We need someone who has grown ARPU and retention on subscription apps, who can run experiments quickly and independently, and who knows how to work within Apple and Google subscription rules.
You will manage performance against real revenue data (ARPU, trial-to-paid conversion, ROI D7, retention and cohorts), not vanity metrics. We also work AI-first, and we expect you to use Claude and automation to move faster.
Key Responsibilities
Own mobile growth end to end: from store page to paid conversion and renewal, across strategy, experimentation, launch, reporting and documentation.
Deliver a quarterly ARPU target on mobile (set against a measured baseline), through conversion, retention and perceived product value.
Own the paywall and pricing: offerings, packaging, trial and intro-offer structure, price tests by geo, and placement. Run them through RevenueCat or an equivalent.
Own onboarding and activation: shorten the path to the first moment of value and fix drop-offs in the first session and first week.
Build retention and win-back loops: push, in-app messaging, cancellation-save flows and involuntary-churn recovery (billing retries, grace periods).
Own store conversion: ASO, listing and screenshot tests, ratings and review prompts on the App Store and Google Play.
Keep web and app aligned: manage the web-to-app handoff and make sure subscribers get a consistent experience and entitlement across both.
Manage signal quality: subscription and in-app events, attribution and MMP data, and measurement under iOS privacy rules (ATT / SKAdNetwork).
Run a structured experiment process: own the mobile backlog, with a clear hypothesis, target metric and kill/scale rule for every test. Run the A/B tests end to end.
Review sessions daily: find friction, drop-offs and behavioural patterns, and turn them into backlog items.
Build the reporting: Mixpanel dashboards and a weekly report on mobile ARPU, trial conversion, ROI D7 on matured cohorts, 1-hour cancellation and retention.
Own policy compliance: keep paywalls, subscription disclosure, refunds and store listings within Apple and Google rules, with prevention-first checks before launch.
Prototype with AI: use Claude and automation for prototypes, analysis, QA and reporting, and ship the ones that work.
Diagnose drops and spikes quickly and act on them.
Document tests, learnings and playbooks.
Qualifications
Must-Have Experience
5+ years in mobile growth, product growth or lifecycle roles on subscription apps.
Proven, measured ARPU, conversion or retention gains on a live subscription app, on both iOS and Android.
Strong understanding of subscription economics: trials, intro offers, renewals, LTV, payback windows and cohorts.
Hands-on paywall and pricing experimentation (RevenueCat, Superwall or similar).
Hands-on with Mixpanel or an equivalent: funnels, cohorts, custom boards.
Experience with StoreKit and Google Play Billing mechanics: grace periods, billing retries, refunds, cancellation flows.
Experience with MMPs (AppsFlyer, Adjust, Singular or similar) and with ATT / SKAdNetwork-era measurement.
Experience with push and in-app messaging tools and with building retention mechanics.
Working knowledge of ASO and store listing conversion.
Strong experiment discipline: hypotheses, sample sizing, readouts and clean decisions.
Daily use of Claude or other AI tools for prototyping, analysis and writing.
Ownership mentality: you run the funnel with minimal supervision and take responsibility for outcomes.
Nice to Have
Experience with AI or consumer-subscription products.
Experience with web-to-app subscription funnels.
Experience coordinating paid acquisition with product conversion, as a partner to a UA lead.
Experience working under strict platform policy (subscription disclosure, ROSCA-type rules).
Location
Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ± 4 hours of CET. This ensures optimal collaboration and communication during working hours.
Benefits
Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance.
Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days.
Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge.
Company-provided MacBook: Apple MacBooks provided to all employees who need them.
Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Read more about it here: Independent Contractor Agreement
https://docs.google.com/document/d/1nkrN76JlZkbKj9WSOhlT1_mni_CZeDkHdwfIjPXVwvk/preview?tab=t.0#heading=h.ndsdl4wapxtt
Be part of our fast-growing team and seize this excellent opportunity for personal and professional growth!
Life at Ruby Labs
At Ruby Labs, we are more than a team; we're a community united in pushing the boundaries of technology and innovation. Our combined passion fuels our ambition for excellence, driving impact that resonates around the globe.
We are an equal-opportunity employer and celebrate diversity, recognizing that a diversity of thought and backgrounds builds stronger teams. We approach diversity and inclusion seriously and thoughtfully. We do not discriminate based on race, ethnicity, religion, color, place of birth, sex, gender identity or expression, sexual orientation, age, marital status, military service status, or disability status. Join us and be part of a company that is crafting the future of technology across multiple industries.