Whoop Staff Android Engineer on the Connectivity team owning the architecture of the software connecting WHOOP hardware to the Android app. Responsible for ensuring connection performance, reliability, and firmware delivery at scale.
Responsibilities
Own the architecture of the Android connectivity layer end to end, from the BLE transport up through history sync and firmware delivery, and drive its evolution across a large modular codebase
Collaborate within a cross-functional environment alongside WHOOP hardware, firmware, and software teams
Establish and refine communication protocols between the WHOOP strap and Android, ensuring alignment with iOS standards
Apply expert-level mastery of the Android Bluetooth stack to manage GATT operations, bonding, and reconnection logic in real-world scenarios
Own connection reliability across the fragmented Android device landscape by diagnosing and mitigating OEM specific Bluetooth, power management, and permission behavior
Create and own systems that aid in analyzing connectivity health of our members, and use that telemetry to set team priorities
Manage a prioritized backlog centered on reducing technical debt, improving code health, and enhancing module testability
Elevate engineering quality through rigorous code reviews, expanded test coverage, and refined architectural design practices
Utilize expert Kotlin proficiency to build product features and define patterns for the broader engineering team
Document new features and architecture using Jira, Confluence and preparing code using Github feature, develop, and master branches
Participate in the incident commander rotation for the whole WHOOP ecosystem and also the release process including getting the app built, managing build variants, signing, sending and testing through Firebase, and submitting to the Play Store
Analyze and monitor user metrics and feedback to determine crash rate or potential bugs and to improve engagement
Qualification
Extensive experience buildingExcellent knowledge of Android Studio
Required
You are experienced working with consumer-facing apps that control BLE devices.
Expert knowledge of best practices for concurrency and multithreading, including Kotlin coroutines and Flow
Product minded engineer with empathy for the member experience
Willingness to learn and grow rapidly across Android and external systems
Extensive experience building, testing, debugging, and delivering native Android apps in a professional environment
Expert knowledge of Android application structure and components as well as lifecycle and Android Design Guidelines
Strong experience with Jetpack Compose and modern declarative Android UI
Experience with Kotlin and frameworks such as Koin, Android Jetpack libraries (including ViewModel, Flows, and Navigation), Room database, and Retrofit / OkHttp
Experience designing modular architecture and dependency boundaries in a large multi-module Gradle codebase, including patterns such as MVI and MVVM
Excellent knowledge of Android Studio, Gradle and CI systems
Experience debugging and diagnosing issues across complex or distributed systems such as firmware, mobile, and backend
