Seeking a Sr Java android /react native developer for hybrid contract opportunity with my direct client in Richfield MN.
If interested , share your word document resume, work authorization, expected hourly pay rate, current location, availability for onsite /hybrid work , skill stack and LinkedIn.
Will consider candidates willing to relocate on own expenses.
Any references let me know.
Location: Richfield MN-hybrid Local, 3-days a week, Tues, Wed, Thurs
Tell us about your department:
We build, deploy, and support all infrastructure for retail, supply chain, and corporate employees .. Our engineering team has engineers of all types (Windows, Linux, Mac, Android, iOS, Hardware, Software, Security, and Network) as well as a group of developers who help develop software to facilitate deployment and support of this infrastructure.
Project Description:
This developer would be focused on an Android application with a Java back end that we use on our mobile Android devices in the field. This application manages login (OIDC-based SSO), retail time notifications (FCM), and session management for internal as well as third party applications and provides security and usage tracking and reporting.
Position Summary/Job Description:
We’re looking for an experienced Android developer to help modernize and add enhancements to this application. We have 2 existing developers working in this space already.Need more .
Skills Overview:
Top skills:
- Technical Requirements (Must-Haves)
- Deep Java & Architecture Expertise:
- Expert-level knowledge of Java 11/17/21 and traditional Android threading models.
- Advanced knowledge of WorkManager, Foreground Services, and BroadcastReceivers.
- Experience managing "Always-On" background services that must survive aggressive battery optimization and system reboots.
- Identity & Security (OIDC):
- Proven experience implementing OIDC (OpenID Connect) and OAuth 2.0 flows using the AppAuth-Android library.
- Experience managing secure token storage via EncryptedSharedPreferences and MasterKey management.
- Enterprise Messaging & Handshakes:
- Hands-on experience with Firebase Cloud Messaging (FCM) (Data Messages) and Microsoft Azure Notification Hub (ANH). Basic
- Experience implementing complex registration "handshakes" involving multi-tier authentication and device/session mapping.
- Inter-Process Communication (IPC):
- Proven experience with AIDL (Android Interface Definition Language) and Binders.
- Ability to manage secure communication and state synchronization between multiple separate apps on the same device.
- Modernization & SDK Migration:
- Experience migrating legacy projects (Support Library 28) to AndroidX and Android 14 (API 34).
- Understanding of modern security requirements: PendingIntent mutability, Foreground Service Types, and granular Permission models.
- Enterprise Device Management:
- Experience with Zebra/Symbol devices, EMDK, DataWedge.
- Data Integrity:
- Experience with oracle or SQL database for high-volume logging and local configuration storage.
- Tooling:
- Expert level with Gradle 8.5+, ProGuard/R8, and Git.
Interview Process:
- 1 interview with HM and the development lead-45 mins- 1 hour duration.
Never miss an opportunity! Create an alert based on the job you applied for.