Android Developer

Luxoft; Kraków; On-site; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Laptop and monitor provided

Job summary

Luxoft is seeking a senior Android/C++ engineer to develop and maintain Android applications and native C++ integration layers across a range of video collaboration devices. The role focuses on implementing new features, shaping architecture, and maintaining existing solutions.

You will design and extend the JNI bridge to C++20, collaborate with CV/ML researchers, and ensure robust IPC and threading across components. A strong emphasis on testing and code quality is expected.

Qualifications

• 5+ years IT experience.
• 5+ years in system or framework implementation.
• Strong Android development experience (Java and/or Kotlin).
• Experience with Android IPC mechanisms (AIDL, Messenger, ContentProvider, BroadcastReceiver, or similar).
• Strong native C++ development (C++11 or newer) and JNI experience.
• Hands-on experience with JNI - designing and maintaining the Java/native boundary.
• Experience with the Git version control system.

Responsibilities

• Design, implement, and maintain Android applications (Java/Kotlin) that surface CV/ML-powered features for conference room cameras.
• Build and extend the JNI integration layer connecting Android app to C++20 native libraries with clean API boundaries and proper threading semantics.
• Collaborate with CV/ML researchers and C++ engineers to expose algorithms and pipelines to the Android layer, including debug visuals and parameter tuning interfaces.
• Design and implement IPC interfaces between the Android app and the existing app ecosystem for efficient data exchange across processes.
• Debug and optimize multithreaded, real-time video processing pipelines on Android, bridging native and managed runtimes.
• Write and maintain unit and integration tests for both Android and native layers to ensure reliability across hardware.
• Participate in code reviews and uphold engineering standards for C++ (RAII, exception-safe) and Android best practices.

Skills

Android development

Java/Kotlin

JNI integration

C++11+/C++20

IPC mechanisms

Multithreading

Testing

Git

Tools

Git

Job description

The person hired for this position will be responsible for the development and maintenance of Android applications and native C++ integration layers for a broad range of video collaboration devices and related products. Software development will be related to the implementation of new features, the design and development of its architecture, as well as maintenance of existing solutions.

Responsibilities:

• Design, implement, and maintain Android applications (Java/Kotlin) that surface CV/ML-powered features (such as people-tracking, framing, and scene understanding) across our conference room camera product line.
• Build and extend the JNI integration layer connecting Android app logic to our C++20 native libraries, ensuring clean API boundaries, safe memory management, and correct threading semantics across the language boundary.
• Collaborate with CV/ML researchers and C++ engineers to expose new algorithms and pipeline outputs to the Android layer, including debug visualizations and parameter tuning interfaces.
• Design and implement IPC interfaces between the new Android application and the existing app ecosystem, ensuring reliable and efficient data exchange across process boundaries.
• Debug and optimize multithreaded, real-time video processing pipelines running on Android hardware, bridging native and managed runtime concerns.
• Write and maintain unit and integration tests for both the Android and native layers to ensure reliability across multiple hardware products.
• Participate in code reviews and uphold established engineering standards on both sides: modern C++ idioms (RAII, exception-safe error handling) and Android best practices (lifecycle awareness, threading, resource management).

Mandatory Skills Description:

• 5+ years IT experience
• 5+ years experience with system or framework implementation
• Strong experience with Android application development (Java and/or Kotlin)
• Experience with Android IPC mechanisms (AIDL, Messenger, ContentProvider, BroadcastReceiver, or similar) for inter-process data exchange between Android applications
• Strong experience with native C++ development (C++11 or newer, strictly required)
• Hands-on experience with JNI - designing and maintaining the Java/native boundary
• Experience with the Git version control system

What do we offer our employees

• Equipment, such as a laptop and monitor