Staff Android Engineer

polymarket; United States; On-site; USD 250,000 - 500,000; Full time

Benefits offered by this job

Equity

Unlimited PTO

Health benefits (Vision/Dental)

401k match

Hardware setup

Job summary

Polymarket is seeking a Staff Android Engineer to lead Android platform direction and build a world-class trading app. You will shape architecture, own major features, and raise the bar across the codebase.

The role requires strong Kotlin skills, production UI with Jetpack Compose, and leadership in a fast-growing distributed team. Expect high ownership, AI-assisted workflows, and impactful decisions in a high-stakes trading environment.

Qualifications

• Significant Android engineering experience with platform ownership.
• Strong Kotlin expertise with architectural decision-making.
• Deep experience building production UI with Jetpack Compose.
• Experience owning CI/CD pipelines and Gradle builds end-to-end.
• Solid understanding of modern Android architecture and evolution.
• Track record of technical leadership within an engineering team.
• Active use of AI tools in development workflows.

Responsibilities

• Set the technical direction for Android at Polymarket and own architectural decisions.
• Build and own Android features spanning payments, real-time data, and core UI from design to production.
• Implement polished interfaces with Jetpack Compose that perform under real trading conditions.
• Own CI/CD pipelines and Gradle configuration to keep builds fast and releases reliable.
• Integrate WebSockets, gRPC, and streaming data to power live market features.
• Lead a distributed team through clear communication and code quality standards.
• Incorporate AI tools into the development workflow to move faster.
• Identify gaps in Android architecture and practices before scale challenges arise.

Tools

Gradle

CI/CD pipelines

WebSockets

gRPC

Job description

About Polymarket

Polymarket is the world's largest prediction market platform. We enable individuals to express views on real-world events by trading on outcomes across politics, economics, sports, culture, and current affairs. Built as a peer-to-peer marketplace with no centralized "house," Polymarket aggregates diverse opinions into transparent, market-based probabilities that reflect collective expectations about the future.

We're growing fast, both in terms of volume ($21B traded in 2025) and adoption as an alternative news source. Our ambition is to become a ubiquitous beacon of truth in global media and we need your help adding fuel to the fire.

About the Role

Polymarket is looking for a Staff Android Engineer to help build a world-class trading app on Android. Millions of users follow markets, track positions, and make trades on their phones - and the Android experience needs to match that level of engagement.

This is a high-ownership, high-influence role for someone who has operated at the staff level before and knows what it means to shape a platform, not just build on it. You'll set the technical direction for Android at Polymarket, raise the bar across the codebase, and help take a product that's already at scale to the next level.

What You'll Do

• Set the technical direction for Android at Polymarket, making and owning architectural decisions that the team builds around
• Build and own Android features spanning payments flows, real-time market data, and core UI with full accountability from design handoff through to production
• Implement polished, performant interfaces with Jetpack Compose that hold up under real trading conditions and meet a high bar for feel and reliability
• Own CI/CD pipelines and Gradle configuration, keeping the build fast and the release process reliable as the team and product grow
• Build and maintain integrations across WebSockets, gRPC, and streaming data to power the live market features traders depend on
• Operate as a technical leader across a distributed team: communicate clearly, make decisions without hand-holding, and raise the engineering bar through code reviews and strong engineering standards
• Actively incorporate AI tools into your development workflow to move faster and maintain a high output bar
• Identify and address gaps in Android architecture and engineering practices before they become problems at scale

What We're Looking For

• Significant Android engineering experience, with a track record of owning and shaping Android platforms at scale, not just contributing to them
• Strong, current expertise in Kotlin with the ability to speak concretely to tradeoffs and make architectural calls with confidence
• Deep experience building production UI with Jetpack Compose and a high bar for performance and polish
• Experience owning CI/CD pipelines and Gradle build configuration end-to-end
• Solid understanding of modern Android architecture with the judgment to evolve it as the product scales
• A track record of technical leadership: you've influenced how an engineering team works, not just what it ships
• Active use of AI tools in your development workflow, not occasionally, but as a real part of how you work
• (Plus) Experience integrating payments on Android
• (Plus) Experience with WebSockets, gRPC, or other real-time data patterns on mobile
• (Plus) Familiarity with cross-platform shared-code architectures
• (Plus) iOS or Swift experience
• (Plus) Background at a larger, more mature engineering organization where you saw and shaped practices as the company grew

Benefits

• Competitive salary & equity
• Unlimited PTO
• Full Health, Vision, & Dental coverage
• 401k match
• Hardware setup: new MacBook Pro, big display, & accessories

Pay Transparency

Base salary range: $250,000 to $500,000 annually, plus equity and benefits.