• Lead complex, cross-cutting technical initiatives that directly impact user acquisition, activation, and retention. • Design and evolve distributed, high-scale systems that power user acquisition and retention. • Partner with Product, Design, and Data teams to identify growth opportunities and translate them into reliable, measurable engineering solutions. • Mentor engineers across Product and Platform teams — guiding architecture, design, and execution. • Ensure high engineering standards across the stack: reliability, performance, security, and maintainability. • Collaborate across teams to align on architecture, tooling, and technical strategy.