Top Senior Android Engineer Jobs in Chicago, IL

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.

Design, develop, and maintain scalable Android applications using Kotlin/Java and Jetpack components. Integrate REST APIs, optimize performance and security, participate in architecture and deployment activities, troubleshoot and resolve issues, and collaborate with cross-functional teams in an Agile environment while supporting CI/CD and release management.

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.

Design, build, and optimize native Android applications. Integrate RESTful backends, implement responsive UIs, handle offline storage and threading, use sensors, and automate code quality and CI/CD pipelines.

Design, develop, test, and maintain Android mobile applications. Implement new features from wireframes, ensure performance and UX, fix bugs, write clean, testable code, and collaborate with backend and design teams.

Perform deep static and dynamic analysis of Android apps and SDKs to uncover risks, malware, data leakage, and exploits. Use reverse-engineering tools and techniques to decompile, disassemble, debug, create detection signatures, gather threat intelligence, and collaborate with researchers and developers to improve mobile security.

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

Design, build, and maintain high-quality Android app features within cross-functional squads. Collaborate with PMs, designers, backend, firmware, and QA. Improve Android codebase, contribute to architecture, code reviews, testing, and mentor engineers while owning projects end-to-end from design to release and maintenance.

Lead design and development of high-performance, offline-capable iOS (iPad) and Android apps for mission-critical drone operations. Build real-time maps, video streaming, telemetry overlays; integrate with hardware; optimize battery, memory, and latency; implement offline-first sync; collaborate with backend/hardware teams; mentor engineers and establish CI/CD, testing, and security best practices.

Lead the development of Android products, design SDKs, enhance security measures, collaborate with cross-functional teams, and innovate in fraud prevention.

Design, build, and ship native Android features in Kotlin for BJAK's AI Neobank app. Integrate backend APIs, improve performance, reduce crashes, collaborate with product/design, use analytics to iterate, and add on-device AI where it improves UX.

Design and implement Kotlin/Java Android apps, frameworks, and SDKs for vehicle infotainment (AOSP/AAOS). Use test-driven development, collaborate with UX, product, cluster, and mobile teams, contribute to architecture and code reviews, and deliver high-quality embedded HMI features for EVs.

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.

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.

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.