Senior Android Security Engineer – Remote​/e​/OS Development

Senior Android Security Engineer at Murena – Remote | /e/OS Development

MURENA develops /e/OS
, a privacy‑by‑design, de‑Googled mobile operating system based on Android, as well as Murena Cloud / Murena Workspace
. Our mission is to offer a credible, privacy‑respecting alternative to mainstream mobile ecosystems, without tracking or profiling. We are a small, international, fully distributed team with a strong open‑source culture and an active community around /e/OS.

To accelerate our roadmap on Android app compatibility, we are hiring a Senior Android Security Engineer – Play Integrity / micro

G. You will work on the design and implementation of Play Integrity / Safety Net‑like compatibility in the micro

G + /e/OS ecosystem, in a way that respects user privacy, complies with legal and contractual constraints, and avoids direct dependency on proprietary Google Play services.

• Perform in‑depth technical analysis of Android attestation mechanisms:
  Play Integrity, legacy Safety Net, device and app attestation, anti‑tamper / anti‑root logic, etc.
• Design and implement compatibility solutions within the micro
  
  G + /e/OS stack, considering privacy and data minimization, legal and regulatory constraints, and technical constraints of AOSP‑based custom ROMs.
• Work at the framework / system level of Android: system services, hooks, APIs, integration with micro
  
  G and /e/OS components.
• Contribute to micro
  
  G and related open‑source projects, in collaboration with maintainers and the wider community.
• Build and maintain testing and validation for real‑world scenarios: banking apps, payment apps, streaming, and other high‑sensitivity apps, automated compatibility tests where possible.
• Monitor evolution of Play Integrity and related APIs, and propose technical strategies accordingly.
• Provide clear technical documentation of designs, trade‑offs, and limitations for internal teams and, where relevant, public developer documentation.

• 5+ years of experience in low‑level Android development, such as AOSP / Android framework, system services, OEM / BSP work, or custom ROMs.
• Strong knowledge of Java/Kotlin for Android and good working knowledge of C/C++ (NDK / low‑level components).
• Hands‑on experience with one or more of:
  Play Integrity, Safety Net, attestation mechanisms, DRM, anti‑tamper, or advanced mobile security;
  Android reverse engineering (smali, bytecode, hooking, instrumentation frameworks).
• Solid understanding of mobile application security and typical Android threat models (root, boot loader unlock, Magisk, etc.).
• Comfortable working in an open‑source environment: public issues, merge requests, code review, and technical discussions.
• Fluent English, written and spoken.

• Previous contributions to micro
  
  G, a custom ROM, or related open‑source Android projects (privacy, security, de‑Googling, etc.).
• Experience with applied cryptography (signatures, certificates, tokens, attestations).
• Backend experience (Go / Java / Kotlin / Node, etc.) for handling attestation responses on the server side.
• Strong interest in privacy and digital rights;
  European or international regulatory topics (GDPR, data protection, digital sovereignty).

• A high‑impact mission: helping to build a real alternative to the dominant mobile ecosystems.
• A remote‑first, flexible work environment within an international team.
• Competitive compensation depending on profile and location.
• High level of technical autonomy and ownership, working closely with the /e/OS core team and leadership.

• Remote, ideally within Europe or time zones close to CET.
• Contract type: full‑time employee or long‑term freelance, depending on your situation and local regulations.

• Your CV or links to Git Hub/Git Lab or similar.
• A few concrete examples of work related to Android low‑level development, security, or reverse engineering (repositories, talks, blog posts, etc.).
• A brief note explaining why this topic interests you and your view on Play Integrity compatibility in a privacy‑first context.

In order to apply :
send an email to techjobs with subject Applying for Senior Android Security Engineer
.

Important note: we DO NOT process applications through Linked In.

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