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The Cash App Consumer Platform is responsible for laying the foundation that every Cash App engineer builds on. We own the shared systems, abstractions, and tooling that power product development across the app. We sit at the product platform layer, building on top of core systems enabling feature development. Our customers are the engineers and teams building Cash App's product experiences, and we measure our success by their velocity and quality. As AI fundamentally reshapes software engineering, Cash’s Consumer Platform is uniquely positioned to define what AI-native development looks like at Cash App and Block, both by building AI-powered capabilities into our platform and by establishing the practices that help hundreds of engineers leverage AI effectively every day. As a Staff Android Engineer on Cash App Consumer Platform, you are a multiplier for the entire client engineering discipline. You think in systems. You spot problems before they have names. You create platforms and patterns that make the right thing easy and the wrong thing hard. You operate at an organizational scope. Your work shapes how hundreds of Builders build and how millions of customers experience Cash App. You don't wait to be handed a problem - you identify what needs to exist, build the case for it, and lead the work to completion. You bring deep Android expertise and a genuine conviction that AI is a transformative force in how we build software, and you act accordingly.
Job Responsibility
Build and Own the Android Platform: own and evolve foundational Android infrastructure including modularization, dependency injection, navigation, deep linking, and app lifecycle systems
design and deliver shared libraries and frameworks that feature teams rely on daily with developer and AI ergonomics as a first-class concern
drive Cash App's Android architecture forward, making high-leverage decisions that compound over time
invent thoughtful Android platform tech and open source it where it creates value for the broader community
develop and steward rapid experimentation in support of the fast iteration enabled by the AI world
build upon observability and performance tooling that gives engineers and on-callers clarity and confidence
partner with iOS, Web, and backend engineers to deliver consistent, high-quality cross-platform experiences
Lead as an AI-Native Engineer: evolve how Cash App's Android engineering org uses AI
proactively identify where AI creates real leverage in platform and product engineering workflows, and act on it
introduce and evaluate emerging AI development tools (Claude Code, GPT/Codex, Goose, and what comes next), forming a clear point of view on adoption
build AI-powered capabilities into the platform itself where they create durable value for product teams
Drive Organizational Impact: operate beyond your immediate team
identify cross-cutting technical problems across Cash App's Android org and mobilize the resources to address them
surface unknown risks and systemic issues before they become customer problems or engineering crises
lead architecture and design reviews across team boundaries - help set standards that scale
mentor and grow engineers at all levels, raising the technical ceiling of the Android community at Cash App
Collaborate Broadly: partner with engineers, product managers, and designers across Cash App to align platform investments with what teams actually need
represent Android platform needs in cross-functional, cross-org, and Block-wide technical discussions
communicate complex technical tradeoffs with clarity to engineers, product partners, and leadership alike
Requirements
10+ years of Android development experience with a demonstrated track record of impact at organizational scope
BA/BS degree in Computer Science or equivalent practical experience
Proven organizational leadership - driven large-scale technical initiatives across multiple teams and left systems meaningfully better
AI-native development practice - actively uses AI-assisted development tools and has a strong, evolving point of view on where AI creates real leverage in engineering - and where it falls short
Strong systems thinking - identifies non-obvious problems and designs solutions that are simple enough to be right
Exceptional communication - crisp design docs, productive design reviews, and the ability to build alignment across senior engineers and non-engineers alike
Deep Android expertise - Kotlin, Jetpack Compose, modern architecture patterns, build systems, performance profiling, and testing at scale
Platform or infrastructure builder's mindset
A high agency mindset
Nice to have
Experience building developer platforms, shared libraries, or internal tooling used across large engineering organizations
Experience with Kotlin Multiplatform
Background in fintech, financial services, or other high-trust regulated environments
Experience with mobile experimentation infrastructure, feature flagging, or A/B testing at scale
A track record of identifying and naming problems that weren't yet on anyone's roadmap