Principal Linux/Android Platform Developer

Sepura; Cambridge; On-site; GBP 75,000 - 95,000; Full time

Job summary

Sepura Ltd in Cambridge is seeking a Linux/Android Platform Developer to join the Software Team. You will focus on Android platform development, kernel configuration, and toolchain integration for embedded, battery-powered devices used in critical communications.

The role requires strong C++/Java, Linux kernel experience, and familiarity with Android open-source projects. You will work within a SCRUM team to deliver robust, secure platform software for diverse customers.

Qualifications

• Degree level qualification in a relevant discipline.
• Strong understanding of Android architecture and ecosystem.
• Experience with Linux kernel and system programming.
• Experience optimising Linux/Android performance, including power management.
• Proficiency with development/debugging tools (profiling, code coverage, memory leak detection).

Responsibilities

• Android platform development and kernel configuration, including scheduler modifications.
• Trialing and integrating open-source development tools for debugging and profiling.
• Prototyping demonstration systems to gather early feedback.
• Producing architectural, design and test specifications.
• Integration testing and issue resolution.
• Participation in project planning and technical reviews.

Skills

Android architecture

Linux kernel

C++/Java

Performance optimisation

Power management

NDK/JNI

AIDL

Binder

SE Linux

CTS

Education

Degree in a relevant discipline

Tools

Git

Job description

It’s an exciting time to come and join the Sepura team. We are on the lookout for Linux/Android Platform Developers to play a key role within the Software Team.

Sepura TETRA digital radio products are similar to mobile phones, but also provide robust, long range, secure communication in harsh environments to public safety, military, transport, utilities and commercial customers. Sepura offer a broad range of radio products, support tools and accessories. Our next generation products will need to meet similar requirements but will need to utilise broadband communication and platform technologies.

This role will focus on the development, configuration and tuning of the Android platform, Android framework/service alterations, and the Android development toolchain. Whilst experience of developing Android Apps is useful, this is not an Android App developer role.

Ideally, candidates will be able to demonstrate previous experience gained over the full development life-cycle of a released Android product. You will have a strong background in the development of Linux and Android based battery powered embedded systems. You will be capable of working in the Linux kernel and ASOP source trees. You will also be comfortable managing large code bases and confident using git to merge branches and upstream commits.

Come and join Sepura Ltd at an exciting time of growth and progress your career within this innovative technology company, based in Waterbeach, Cambridge.

Role

• Android platform development, kernel configuration including modifications to the scheduler, performance optimisations and minimising latencies.
• Trialling and integrating open-source development tools for debugging, profiling, code-coverage, memory leak detection etc.
• Prototyping of demonstration systems to generate early feedback on proposed solutions.
• The production of architectural, design and test specifications.
• Integration testing, investigation and resolution of issues.
• Participation in project planning and technical reviews.

Day to Day

Our customer base includes many different industries and markets around the world. Our complete TETRA and LTE solutions have been developed specifically for users in multiple sectors to face their critical communications challenges.

There is no such thing as a typical day here at Sepura. You will be supported by your manager and team, as well as collaborating with other departments across the business. You will be working as part of an agile scrum team focused on progressing projects, producing mission critical products, to meet our customer requirements.

Must-haves

What you need to succeed:

Qualifications

• Degree level qualification in a relevant discipline

Experience and Skills

• Good understanding of the Android architecture and ecosystem (including low level and security)
• Experience of Linux kernel and system programming
• Experience optimising Linux/Android performance, e.g. power management
• Experience with most of the following:
  • Binder
  • AIDL
  • Services (C++/Java)
  • Framework APIs
  • NDK, JNI
  • CTS
  • SE Linux
• Excellent knowledge of the C++ programming language in real-time multi-processor, multi-threaded, event-driven software.
• Experience of developing for mobile platforms
• Experience with development tools for debugging, profiling, code coverage, memory leak detection etc
• Structured in their working practices with a practical understanding of quality software development processes

Nice to have:

• Experience with Linux open-source project configuration management and patching techniques.
• Familiarity with working with a hardware development team (interpretation of schematics and a practical knowledge of debugging using logic analysers and oscilloscopes.