Android Developer

Pentangle Tech Services is seeking a Senior Android Developer to lead the design, delivery, and operation of high-quality native Android applications used at scale. The role involves owning mobile architecture decisions and collaborating with cross-functional teams to drive performance, reliability, and secure development practices across the Android codebase.

Responsibilities

• Design and evolve Android architectures (MVVM/MVI, Clean Architecture, modularization) to support scalability, maintainability, and rapid delivery
• Build production Kotlin features end-to-end, from discovery and prototyping through implementation, testing, release, and post-launch support
• Partner cross-functionally with product, design, backend, QA, and security to deliver intuitive, accessible, and compliant user experiences
• Drive app performance and stability improvements (startup time, ANRs, memory pressure) using profiling, Android Vitals, and telemetry
• Implement reliable networking and data layers using REST/GraphQL, Retrofit/OkHttp, offline caching, and persistence (Room/SQLite/DataStore)
• Establish observability practices (crash/telemetry monitoring, dashboards, release health), and improve automated testing coverage (unit/UI)
• Ship safely using CI/CD, feature flags, incremental rollouts, and rollback strategies
• Mentor engineers through design reviews, code reviews, and technical guidance; help raise mobile engineering standards across teams
• Build and integrate platform/device capabilities where needed (BLE, wearables, IoT, NDK/JNI/AOSP components)

Skills

• Extensive experience building and maintaining native Android applications in Kotlin/Java in production environments
• Strong command of Android SDK and modern Jetpack libraries (AndroidX, Jetpack Compose, Navigation, WorkManager)
• Proven expertise in mobile architecture and design patterns (MVVM/MVI, Clean Architecture) and large-scale codebase evolution
• Cross-platform experience (Flutter/Dart) and/or backend integrations (Node.js/TypeScript/Python)
• Experience with concurrency (Coroutines, Flow; RxJava a plus) and building responsive, thread-safe apps
• Hands-on knowledge of networking and API integration (REST and/or GraphQL), plus security and privacy best practices
• Track record improving stability and performance using monitoring tools and data-driven optimization
• Strong collaboration skills and ability to communicate technical tradeoffs to both engineers and non-engineers

Company Overview

• Pentangle Tech Services is the fastest-growing Engineering Services Firm. It was founded in undefined, and is headquartered in Farmington Hills, Michigan, USA, with a workforce of 51-200 employees. Its website is https://pentangletech.com.

Company H1B Sponsorship

• Pentangle Tech Services | P5 Group has a track record of offering H1B sponsorships, with 16 in 2026, 93 in 2025, 36 in 2024, 9 in 2023, 24 in 2022, 9 in 2021, 2 in 2020. Please note that this does not guarantee sponsorship for this specific role.