Note: The job is a remote job and is open to candidates in USA. Block is a company that has transformed financial products through Cash App, aiming to redefine money's relationship with users. As a Staff Android Engineer on the Cash App Consumer Platform, you will enhance foundational Android infrastructure, drive AI-native development practices, and lead organizational impact by addressing technical challenges across teams.
Responsibilities
- Own and evolve foundational Android infrastructure: 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
- 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
- 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
- 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
Skills
- Platform or infrastructure builder's mindset. You've built systems for engineers as your customers, and you care deeply about developer experience
- A high agency mindset - if you see a problem you take the initiative to find a solution
- 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. You've driven large-scale technical initiatives across multiple teams and left systems meaningfully better
- AI-native development practice - You actively use AI-assisted development tools and have a strong, evolving point of view on where AI creates real leverage in engineering - and where it falls short
- Strong systems thinking - You identify non-obvious problems and design 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
- 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
Benefits
- Remote work
- Medical insurance
- Flexible time off
- Retirement savings plans
- Modern family planning
Company Overview
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