About us: About the role: Ruby Labs seeks a Head of Product & Growth Manager to drive product value and revenue optimization. You'll be directly responsible for key metrics including retention, ARPU/ARPPU, and overall product performance. This role offers full autonomy in product strategy with clear KPIs: improving user retention, maximizing revenue per user, and enhancing product value through data-driven decisions. Key Responsibilities: - Own and optimize key metrics: retention, ARPU/ARPPU, L…