Senior Systems Engineer - Secure, Cross‑Domain Crypto

QuantumGate is dedicated to developing and commercializing cutting-edge post-quantum cryptographic solutions. Our mission is to safeguard enterprise digital environments through innovative protocols and applications that address the evolving challenges of the post-quantum era.About the role:We are looking for a versatile engineer who can work across multiple domains of our complex project while maintaining strong security practices. You'll develop in different languages and layers—from Android/AOSP and system services to infrastructure—and ensure security is baked into everything.Key Responsibilities:Develop across multiple areas: C/C++, Java, Golang—using the right tool for the jobOwn security implementation: design secure components, implement cryptographic solutions, conduct threat assessments, manage vulnerability patchingBuild and customize AOSP with security hardeningBuild system modifications and toolchain workSystem framework and service developmentSecurity updates and patch integrationMove fluidly between project domains as needed:Android application and system-level workInfrastructure and DevOps focused workDrive security culture: implement best practices, code reviews, vulnerability managementAutomate and script for builds, testing, deploymentsPreferred Qualifications:Android/AOSP knowledge: Comfortable building from source, understanding frameworks, modifying system servicesMulti-language capability: Strong in at least 1 of the following: C/C++, Java, Golang and willing to learn others.Security mindset: Understanding of cryptography, threat modeling, vulnerability managementLinux fundamentals and scripting/DevOps experienceVersatility & Ownership: comfortable context-switching across different project areas and driving decisions independentlyJoin us to drive innovation and shape the future of technology!#J-18808-Ljbffr