Top Android Developer Jobs in Chicago, IL

Seeking an experienced Android Developer with 5+ years of mobile application development, expertise in Xamarin and .NET technologies, and strong project management skills.

Design, build, test, and maintain Android apps using Kotlin (and Java when needed). Collaborate with product, design, backend, and QA teams; implement responsive UIs, integrate REST APIs and third-party SDKs, optimize performance, support Play Store deployments, and follow SDLC standards.

Lead Android engineer responsible for designing and delivering Android client solutions, partnering with cross-functional teams, mentoring junior engineers, leading major platform components, participating in agile ceremonies, reviewing code, and advocating mobile platform best practices. Emphasis on Kotlin, high-quality customer experiences, and cross-discipline collaboration.

Build and maintain Signal's Android app with strong emphasis on code quality and user privacy. Architect major enhancements, ship features to millions, and contribute immediately to the open-source Android codebase while collaborating across a small, distributed team.

Build and maintain mobile applications using React Native and native iOS/Android technologies. Write performant, maintainable code, participate in product and platform design discussions, support prototyping and internal testing, and test/debug apps across many devices. Ship production-quality mobile apps; published apps preferred.

Design, develop, test, and deploy advanced Android applications. Lead and mentor an Android team, conduct code reviews, collaborate with cross-functional teams and UX/UI designers, integrate RESTful and third-party APIs, troubleshoot complex issues, and optimize apps for performance, security, and scalability.

Lead technical direction and architecture for Android-native POS and handheld apps. Build offline-first, high-performance systems, mentor engineers, drive cross-team initiatives, improve reliability, modularize codebase, and enhance CI/CD and observability for production at scale.

Build and ship native Android features for onboarding, accounts, cards, payments, transfers, rewards and AI-assisted journeys. Turn complex financial flows into simple mobile experiences, own app quality (performance, crashes, loading states), integrate APIs and secure authentication, and iterate using production feedback and analytics while collaborating with product, design, backend and AI engineers.

Build and improve features for Rare Candy's Android app using Kotlin and Jetpack Compose. Integrate with GraphQL APIs, fix bugs, and raise UI quality. Collaborate with product, design, and backend engineers, ship production work, and grow quickly under senior mobile leadership in a fast-moving startup.

Develop and maintain Android mobile applications in Kotlin. Implement MVVM/MVP and Clean Architecture, use DI frameworks, write unit tests, integrate network protocols (HTTP/REST/OAuth/JSON), publish apps to Google Play, follow code style and team development practices, and use Git and bug-tracking tools.

Design and implement Kotlin-based Android/AOSP/AAOS apps, frameworks, and SDKs for vehicle infotainment. Deliver features and fixes, use TDD, perform code reviews, write design docs and roadmaps, collaborate with UX/product/engineering, and provide technical leadership.

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.

As a Senior Android SDK Engineer, you will design and implement SDK features, maintain integrations with ad networks, and ensure SDK performance and reliability for mobile apps.

Design, develop, and maintain mobile applications in Kotlin, ensuring healthcare compliance, collaborating with teams, and mentoring others.

Lead technical ownership of the Gateway Android app for a safety-critical mobile cardiac telemetry product. Architect and implement reliable long-running Android applications, make architectural decisions, write production code, drive design discussions and code reviews, mentor engineers, and establish durable engineering practices. Collaborate with cross-functional teams and ensure robust BLE, background execution, and secure communication capabilities.

Design and implement custom Android system services, AIDL interfaces, and hardware abstractions for headless AOSP devices. Build system-level features in Kotlin/Java/Rust/C++, diagnose OS-level memory and concurrency issues, create CTS/VTS tests and update pipelines, and perform root-cause analysis on tombstones and kernel logs across Qualcomm-based hardware.

Design, build and ship native Android features using Kotlin and Jetpack Compose. Integrate REST APIs, improve performance and reliability, debug production issues, and create AI-assisted on-device experiences (TensorFlow Lite). Collaborate with product and design to simplify complex financial user journeys.

The Android Developer will build and maintain AI-integrated Android applications, focusing on UX and system performance while collaborating with backend and ML engineers.

As an Android Software Engineer, you'll design and develop applications, enhance Android components, and improve telemetry solutions for device reliability in rugged tech environments.

Lead development of native Android launchers and a reusable launcher platform. Integrate Unity-as-a-Library, optimize performance and memory, implement ad monetization compliant with Google Play, own releases from architecture through Play Store deployment, mentor Android engineers, and use AI-assisted tools to accelerate development while ensuring quality and policy compliance.

Lead development of the Fable Android app: design and build high-quality experiences, drive architecture and performance improvements, collaborate with product/design/QE, mentor engineers, improve code quality and release reliability, and own features from concept to release.

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.

Design and build scalable, maintainable Android client infrastructure and product experiences using Kotlin and modern Android tooling. Define best practices, write automated tests, improve app architecture (MVVM, unidirectional state), collaborate with product and design, mentor engineers, and lead high-impact projects to improve performance, quality, and developer velocity across the Netflix Android app.

Design, build, and maintain high-quality Android/iOS mobile applications integrated with OXIO's telecom platform. Contribute to architecture, write reusable/testable code, optimize performance, implement automated tests, troubleshoot across devices, and support CI/CD and releases while collaborating with backend and platform teams.

Develop and maintain high-performance Android mobile apps using React Native. Collaborate with designers and backend engineers, integrate RESTful APIs, implement state management, optimize performance, debug issues, participate in code reviews, and follow best practices for testing, CI/CD, and app deployment to the Google Play Store.