Murena is hiring a Senior Android Security Engineer to work on Android app compatibility, user experience, and trust, while respecting user privacy and complying with legal and regulatory constraints.
Key Highlights
Technical Skills Required
Benefits & Perks
Job Description
Important note: we DO NOT process applications through LinkedIn.
In order to apply: send an email to techjobs@murena.io with subject Applying for Senior Android Security Engineer
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.
Overview of the role
To accelerate our roadmap on Android app compatibility, we are hiring a Senior Android Security Engineer – Play Integrity / microG
You will work on the design and implementation of Play Integrity / SafetyNet-like compatibility in the microG + /e/OS ecosystem, in a way that:
- respects user privacy,
- complies with legal and contractual constraints,
- avoids direct dependency on proprietary Google Play services.
Your work will have a direct impact on:
- App compatibility on /e/OS, especially for sensitive apps (banking, payments, etc.),
- User experience and trust,
- The overall credibility of /e/OS as a viable alternative for the general public.
Responsibilities:
- Perform in-depth technical analysis of Android attestation mechanisms:
- Play Integrity, legacy SafetyNet, device and app attestation, anti-tamper / anti-root logic, etc.
- Design and implement compatibility solutions within the microG + /e/OS stack, considering:
- privacy and data minimization,
- legal and regulatory constraints,
- technical constraints of AOSP-based custom ROMs.
- Work at the framework / system level of Android:
- system services, hooks, APIs, integration with microG and /e/OS components.
- Contribute to microG 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.
Requirements:
- 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 at least one of the following:
- Play Integrity, SafetyNet, 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, bootloader unlock, Magisk, etc.),
- server-side attestation flows (APIs, backends, signatures).
- Comfortable working in an open-source environment:
- public issues, merge requests, code review, and technical discussions.
- Fluent English, written and spoken (international remote team and community).
Preferred Qualifications:
- Previous contributions to microG, a custom ROM, or related open-source Android projects (privacy, security, de-Googling, etc.).
- Experience with applied cryptographyb (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).
What we offer
- 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.
Location & contract
- 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.
How to apply
Please send us:
- Your CV or links to GitHub/GitLab 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.
Important note: we DO NOT process applications through LinkedIn.
In order to apply: send an email to techjobs@murena.io with subject Applying for Senior Android Security Engineer