Senior Mobile App Engineer – iOS & Android Development

About the role

QuantumGate is seeking a Senior Mobile App Engineer to design, build and maintain cloud‑based mobile solutions for its post‑quantum security platform. The role focuses on both Android and iOS applications and requires close collaboration with infrastructure, cloud, and QA teams.

Key responsibilities

• Plan and design mobile applications for Android and iOS, covering the full development lifecycle.
• Develop, test, deploy and support production‑grade mobile apps.
• Engineer an Android AOSP baseline running in a virtual‑machine cloud environment.
• Create cloud‑front‑end components for management and administration functions.
• Develop cloud service connectivity, including remote‑viewer protocols.
• Integrate security concepts such as authentication, authorization, key management and secure boot.
• Collaborate with infrastructure, cloud, mobile client and QA teams to ensure performance and scalability.
• Continuously improve application performance throughout the product lifecycle.

Required profile

• Minimum 10 years of professional experience in mobile application development (approximately 120 months).
• Proven expertise in both Android (including AOSP) and iOS development.
• Strong background in cloud‑based application architecture and service integration.
• Experience working in security‑focused environments is preferred.

Required skills

• Android AOSP development
• iOS application development
• Flutter
• React Native
• Capacitor
• Ionic
• Cordova
• WebRTC
• Google Cloud
• Azure
• Kubernetes
• Terraform
• Angular
• Application security practices and tools
• Tekton