Open position

Engineering Team • Sofia, Sofia City Province, Bulgaria

Android OS Developer

We are looking for an Android OS Developer to be part of the full scope of development – from early brainstorming through execution to release and refinement.

Who We Are

At Secure Group, we ensure that the mobile data and communication are secured against interception and threats (such as data leakage, physical tampering, and data-mining) through advanced encryption technologies.

We have been competing globally to deliver the most secure phone to businesses, individuals, government institutions, and military and defense organizations for ten years.

Secure Group mobile solutions are designed and created in our headquarters and R&D center in Sofia, Bulgaria, and distributed in 100+ countries around the world.

We are the game changer that eliminates workarounds to security and gives users the ultimate privacy-oriented communication experience in a single device.

What We Do

Secure Group designs and manufactures mobile phones with multi-layered security that runs on custom hardware, with a custom Operating system; our product has a Secure Communication Suite. The suite includes our state-of-the-art applications for end-to-end encrypted communications and secure file storage: Secure Chat, Secure Vault, and Secure Calendar.

What We Offer

  • We pay top of the market to attract the best and the brightest. Salary Range (BGN net): 7.000 - 11.450
  • Our unique Secure Group Management Model (SGMM) guarantees that performance and continuous growth get rewarded instantly.
  • Our salary grids are publicly available and showcase clear and measurable career progression customized for each role.

Read more about it here:

Based on the Secure Group Management Model, everyone in the company contributes in a unique way to its success by fulfilling a range of specific requirements tightly related to particular daily and strategic responsibilities.

Your Strategic Contribution

Join our Software Engineering team as an Android OS Developer and be part of the full scope of development – from early brainstorming through execution to release and refinement. By becoming part of Secure Group you will build our custom operating system that utilizes multiple defense layers to isolate, encrypt, and secure our customers' data against any mobile threat. To enable innovation and ensure a great product, we ensure all team members' opinions are respected and that everyone is constantly exposed to new technologies.

Throughout the Day

  • Design and implement components at all layers of the system, from drivers to frameworks
  • Design and build applications integrated into the OS platform
  • Improve CI/CD Pipelines to support development
  • Debug complex, system-level, multi-component issues that typically span across multiple layers
  • Ensure the performance, quality, and responsiveness of the OS and applications
  • Collaborate with the team to define, design, and release new features
  • Identify and correct bottlenecks


  • 2+ years of experience with Android development OR AOSP OR Embedded Linux development

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