Senior Software Engineer: Mobile Development

## Senior Software Engineer:
Mobile Development Apply locations:
Peoria, Illinois time type:
Full time posted on:
Posted Todayjob requisition :
R
** Career Area:
** Technology, Digital and Data
*
* Job Description:

**** Your Work Shapes the World at Caterpillar Inc.
** When you join Caterpillar, you're joining a global team who cares not just about the work we do – but also about each other.  We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here – we make it happen, with our customers, where we work and live.

Together, we are building a better world, so we can all enjoy living in it.
* Cat Digital is the digital and technology arm of Caterpillar Inc., leveraging the latest technologies to build industry leading digital solutions for our customers and dealers. With over 1.5 million connected assets worldwide, our teams use data, technology, advanced analytics, telematics and AI capabilities to help our customers build a better, more sustainable world.
**
* Job Summary:

** The Senior Software Engineer performs implementation, regular problem solving, maintenance and support for the SIS2

Go mobile application, primarily focused on developing and maintaining custom native plugins that bridge platform-specific capabilities to the cross-platform application layer.
*
* What You Will Do:

*** Designing, developing, and maintaining custom native plugins (Java/Kotlin for Android, Swift/Objective-C for iOS) that expose device hardware and platform APIs to the application layer.
* Acquiring client requirements; resolving workflow problems through automation optimization and integration with device hardware and field equipment (WiFi connectivity, mDNS, dual-connectivity, barcode scanning, biometrics).
* Writing source code for new native plugins, and/or enhancing and debugging existing plugins for capabilities including file system operations, network management, and secure storage.
* Implementing platform-specific security features including SSL pinning, encrypted databases, and secure keychain/keystore access.
* Utilizing automated testing tools to perform testing and maintenance of native plugin interfaces and platform integrations.
* Leveraging AI productivity tools (e.g., Git Hub Copilot, AI coding assistants) to accelerate development, streamline code generation, and improve debugging efficiency.
** What

You Will Have:

**** Software Development:
*** Develops native mobile code in Java/Kotlin (Android) and/or Swift/Objective-C (iOS) to implement platform-specific functionality.
* Writes JavaScript/Type Script interface layers to expose native capabilities to the application.
* Manages complex interactions between web and native layers across multiple target platforms.
** Software Integration Engineering:
*** Designs and implements native bridge layers between JavaScript and platform-specific APIs on Android and iOS.
* Integrates with external systems including OAuth identity providers and field equipment over local network protocols.
* Develops and maintains plugins that interface with hardware subsystems (WiFi, Bluetooth, cameras, biometrics).
** Software Product Technical Knowledge:
*** Configures and maintains platform-specific build configurations (Gradle for Android, Xcode for iOS).
* Applies knowledge of mobile platform security, including SSL pinning, encrypted databases, and secure keychain storage.
* Troubleshoots platform-specific performance issues using native debugging tools and profilers.
** Software Product Testing:
*** Designs and implements test suites for native plugin layers and platform-specific integrations.
* Validates plugin behavior across multiple OS versions and device configurations.
** Considerations For Top Candidates:
*** Hands-on native mobile development experience:
** Java/Kotlin** (Android) and/or
** Swift/Objective-C** (iOS).
* Familiarity with
** JavaScript/Type Script
** for writing plugin interface layers and bridging native code to the application.
* Experience writing
** native plugins or SDKs
** that expose platform APIs to higher-level application frameworks (Capacitor, Cordova, React…