I am building an enterprise-grade, stealth monitoring solution dedicated to Android 14 devices and I need a senior security engineer who can take it from proof-of-concept to a production-ready SaaS platform. What the agent must do The core of the job is a lightweight background service that captures user activity—specifically app-usage timelines, every keystroke, and continuous location—even under the new Android 14 background-execution limits. All data has to be streamed in real time, encrypted end-to-end (AES-256 at rest, TLS 1.3 in transit), and made available for remote access from a web console. Zero-root, zero-popup, and zero-battery-drain are non-negotiable. How the platform should feel Think managed SaaS: multi-tenant, horizontally scalable, sub-second ingest for at least 10 000 concurrent devices, with an intuitive dashboard for live device views and remote commands. I am comfortable with Kubernetes, Terraform, and a micro-service approach (Go, Node, or Java), but you can propose an alternative stack as long as latency targets are met and the code base is clean, testable, and fully documented. Deliverables • Android 14 agent (Kotlin/NDK) that survives reboots, Play Protect scans, and OS upgrades, auto-updates itself, and streams app usage, keystrokes, and location in real time • Cloud backend (API, WebSocket, event queue) plus infrastructure-as-code ready for AWS or GCP deployment • Web dashboard showing live data, historical playback, and remote management controls • Complete build scripts, unit/integration tests, and technical hand-over documentation Acceptance criteria 1. Device-to-dashboard latency ≤ 1 s for 10 k devices 2. 100 % encrypted data path with key rotation support 3. Agent footprint ≤ 2 % average CPU and ≤ 50 MB daily mobile data on a Pixel 7 running Android 14 4. Successful test run across a full OS-upgrade cycle without loss of persistence or permissions If you have deep reverse-engineering skills, a track record in Android security, and can architect cloud systems that never fall over, let’s talk.