Top Senior Android Developer Jobs in Seattle, WA

Build and maintain Layla’s cross-platform Flutter mobile applications for iOS and Android. Own end-to-end feature delivery, including architecture, API integration, data modeling, testing, performance, reliability, and release support. Collaborate with product, design, and backend teams to create accessible conversational travel-planning and booking experiences. Integrate AI/ML capabilities responsibly, contribute to native platform interoperability, improve engineering architecture and standards, and mentor other engineers.

Build, enhance, and maintain Android features across Expedia Group brands using Kotlin and modern Android practices. Design APIs and data models, ensure performance and reliability, write tests, debug issues, and collaborate cross-functionally to deliver end-to-end mobile experiences. Safely integrate AI/ML-enabled solutions where appropriate.

Design and deliver Android system applications for Toast POS devices, including device policy enforcement, setup, firmware and app updates, background services, and fleet deployment. Lead technical design, cross-functional planning, Android and hardware upgrades, automated testing, production issue investigations, and staged rollouts. Mentor engineers and collaborate with product, hardware, QA, and software teams to build secure, reliable device-management systems.

Develop and launch scalable Android features from design through implementation, creating smooth and stable user experiences. Evaluate technical tradeoffs, collaborate with design, conduct code reviews, and maintain high standards for correctness, security, performance, and production readiness. Use Kotlin, Java, RxJava, Dagger, and AI-assisted development tools. The role requires substantial software development experience and Android application expertise.

Build identity, login, registration, and account experiences for Android mobile and Android TV using Kotlin. Develop shared Android SDKs, feature-flagged releases, A/B tests, telemetry, and privacy-related functionality at large scale. Diagnose Android device issues, maintain code quality through testing and reviews, document integrations, and collaborate with product, data science, design, legal, and privacy teams.

Build Grow Therapy’s native Android app from the ground up as the founding Android engineer. Own architecture, developer tooling, testing, CI/CD, production releases, observability, security, and consumer-facing features. Set Android standards and technical direction while partnering with product, design, iOS, and backend teams. The role requires hands-on delivery, strategic decision-making with incomplete information, and preparation for a growing Android organization.

Own Uber’s Android build platform across Bazel, Starlark rules, toolchains, dependency management, remote caching, remote execution, and CI. Improve build speed, reliability, cost, diagnostics, and test selection across a large monorepo. Lead platform migrations, upgrades, observability, incident response, technical standards, and cross-team initiatives while mentoring engineers and setting the Android build roadmap.

Develop Android features and platform capabilities for Uber’s autonomous mobility products. Lead technical projects from inception through deployment, collaborate with product, data science, and operations teams, and make trade-offs across performance, quality, and delivery speed. Establish testing, monitoring, and alerting standards, manage complex incidents, improve engineering velocity, and deliver high-quality customer-facing mobile experiences at global scale.

Develop and lead frontend platform engineering for native and hybrid mobile applications. Build reusable, well-tested Android and iOS SDK components, contribute to architecture and system design, collaborate with product and engineering teams, own customer-facing deliverables, and identify product improvements while maintaining strong engineering standards.

Design, build, and maintain high-quality Android applications using Kotlin/Java. Collaborate with product, design, backend, and QA teams to implement features, fix bugs, optimize performance, and ensure code quality through testing, code reviews, and CI/CD workflows.

Build and own Android growth and monetization experiments across subscriptions, pricing, advertising, purchases, and upgrade flows. Partner with product, design, data science, and analytics to instrument experiments, manage staged rollouts, monitor performance, and act on results. Use AI tools throughout development, contribute to Android architecture and engineering practices, participate in on-call support, mentor engineers, and help scale reliable mobile experiences to tens of millions of users.

Build and improve scalable, accessible Android applications for Wikipedia and Wikimedia users worldwide. Responsibilities include leading technical discovery and system design, implementing Kotlin and Jetpack Compose features, optimizing performance, developing testing and observability practices, managing delivery risks and scope, and collaborating with product, design, analytics, and engineering teams.

Own Android accessibility across Slack, including Compose component fixes, TalkBack troubleshooting, automated accessibility testing infrastructure, VPAT compliance, regression testing, and cross-platform planning. Provide accessibility guidance to feature teams, mentor engineers, coordinate with QA vendors, and promote best practices through documentation, onboarding, and presentations.

Designs, builds, and evolves production Android applications using Kotlin and modern Android frameworks. Owns complex features, architecture, modularization, testing, observability, performance, security, and release quality. Collaborates with product, design, backend, quality, and iOS teams; contributes to Swift or SwiftUI when useful. Provides technical mentorship, reviews code, supports incident response, and improves mobile engineering practices.

Develop and maintain scalable native Android applications using Kotlin, focusing on performance, usability, architecture, testing, and code quality. Collaborate with product, design, and backend teams; troubleshoot complex issues; maintain CI/CD workflows; document systems; lead technical initiatives; mentor junior engineers; and contribute to feature planning and estimation.

Designs and owns complex Android features using Kotlin, Jetpack Compose, and modern architecture. Establishes technical direction, improves testing, observability, performance, security, privacy, and release quality. Partners with product, design, backend, quality, and iOS teams on APIs, shared mobile standards, and platform tradeoffs. Reviews code, mentors engineers, contributes to planning and incident response, and occasionally makes targeted Swift or SwiftUI changes.

Lead hands-on development of user-facing Android and iOS applications, taking ownership from design through production release. Build maintainable, well-tested features, optimize performance, debug unfamiliar systems, and manage app-store publishing. Collaborate with product, design, backend, and users in an agile, remote environment. Use AI coding agents responsibly to accelerate implementation, testing, reviews, infrastructure work, and incident investigation.

Build, test, release, and maintain native Android and iOS applications across a portfolio of consumer mobile products. Use Kotlin, Swift, modern mobile frameworks, automated testing, analytics, experimentation, and AI coding agents to deliver high-quality software. Collaborate with product, design, marketing, operations, and engineering teams, measure user impact, manage app-store releases, and adapt across codebases and product pods.

Own Android and iOS mobile development for a large consumer VPN product. Inherit and modernize existing codebases, integrate native VPN networking libraries, improve security, testing, CI/CD, release management, and app-store compliance. Collaborate with product, design, backend, DevOps, and marketing teams to deliver reliable user-facing features. Diagnose networking issues across mobile and Go components, optimize connection performance, and use AI coding agents responsibly.

As a Staff Software Engineer, you will define technical strategy for Drive-Thru solutions, standardize Android practices, and ensure seamless integration between mobile clients and backend services while mentoring peers.

Design, build, test, and maintain Android applications with a focus on user experience and design. Collaborate on flagship Android development and new product prototypes.

The role involves architecting and implementing Android applications, optimizing performance, and leveraging AI technologies within a collaborative environment.

Build and ship robust Android features for ClassPass in a large modular codebase. Collaborate with product and design, mentor junior engineers, conduct code reviews, write technical documentation, solve complex problems, improve systems, and contribute to architectural decisions using Kotlin and Jetpack Compose.

Develop and ship production-quality mobile apps using React Native and native iOS/Android technologies. Write performant, maintainable code, support prototyping, test and debug across devices, and translate product requirements into working features.

Design, build, and maintain core Android infrastructure, app architecture, developer frameworks, and release tooling. Implement cross-platform UI frameworks, server-driven UI, and scalable libraries using Kotlin, Java, Jetpack Compose, Dagger/Hilt, and GraphQL. Drive testability, performance, accessibility, and production tooling while collaborating with product and client teams to enable engineering velocity at scale.