Top Senior Android Developer Jobs in Philadelphia, PA

Develop and maintain Android mobile features for Comcast Xfinity Home Protection IoT products. Collaborate with product, backend, and device teams to build scalable, backend-driven UI and device orchestration workflows, improve performance and reliability, debug production issues, and participate in architecture and code reviews.

Build and maintain iOS features for Comcast's Home Security IoT products. Collaborate with product, backend, and device teams to deliver end-to-end solutions, contribute to app architecture, implement Spec-Driven Development UIs, integrate REST APIs, improve performance and reliability, and debug complex production/connectivity issues.

Develop and maintain Android features for Comcast's Home Protection mobile experiences, collaborating with product, backend, and device teams. Contribute to app architecture, implement Spec-Driven Development UI frameworks, integrate REST APIs, improve performance and reliability, debug production connectivity issues, and participate in code reviews to support scalable, maintainable Kotlin codebases.

Develop and maintain Android camera and video features for the Xfinity app, collaborate cross-functionally, contribute to app architecture, write clean Kotlin code, improve performance and reliability, debug production issues, and participate in code reviews.

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.

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.

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, develop, and maintain Android point-of-sale software for high-availability, real-time restaurant systems focused on payments. Collaborate with product, design, and backend teams to deliver features, ensure quality through testing and code reviews, and address complex technical challenges. Provide technical leadership and mentorship while contributing to subsystem design focused on scalability, security, and performance.

The role involves architecting and developing mobile healthcare applications, ensuring security and usability, and managing multiple development teams.

Design, build, and maintain Android tablet platform across firmware, bootloader/BSP, kernel, and device-tree layers. Support MediaTek platforms, integrate hardware components, ensure secure boot and OTA safety, maintain ROM build/release processes, develop device-side apps/tools in Kotlin/Java, run validation and QA, support factory flashing and field deployments, and provide on-call diagnostics and fixes.

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 maintain high-performance Android applications, design new features, troubleshoot code, and work with REST/Web Services in a multi-threaded environment.

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, 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.

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 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.