Senior IoT Full-Stack Developer/Team Needed for Custom CCTV Mobile App & Cloud Architecture - Contract to Hire

We are looking for a highly experienced Full-Stack Developer or a Specialized Agency to build our software ecosystem from scratch. We will not use the manufacturer's public cloud. Instead, we need to build our own Private Cloud Server and Custom Mobile App (iOS & Android) that communicates with the camera via SDK/API. Scope of Work: Phase 1: Consultancy & Architecture Design (Crucial) Review the SDK/API documentation provided by the hardware manufacturer. Advise on the best cloud architecture (AWS/Google Cloud/) for cost-effective video streaming and storage. Design the system architecture to ensure low latency, security, and scalability. Phase 2: Backend & Cloud Development Develop a secure backend to manage user accounts, device pairing, and permissions. Set up a Media Streaming Server (handling RTSP, WebRTC, or HLS) to relay live video from cameras to the mobile app. Implement P2P (Peer-to-Peer) connection logic to minimize server bandwidth costs. Set up Cloud Storage integration for video playback. Phase 3: Mobile Application Development (iOS & Android) Develop a user-friendly app Key Features: QR Code Device Pairing. Live Video Streaming (Low latency). Two-way Audio (Talk/Listen). Motion Detection Alerts (Push Notifications). Playback from SD Card & Cloud. PTZ Controls (Pan/Tilt/Zoom). Ai Tracking Phase 4: Testing, Deployment & Handover Rigorous testing for connectivity, speed, and bugs. Deploy server infrastructure and publish apps to App Store/Play Store. Provide full source code and documentation. Phase 5: Long-term Maintenance (Retainer) Ongoing bug fixes, server monitoring, and feature updates. Required Skills & Qualifications: Proven experience in IoT / Smart Home / CCTV applications. Strong knowledge of Video Streaming Protocols (RTSP, RTMP, WebRTC, H.264/H.265). Experience working with Hardware SDKs (C/C++, Java, Objective-C wrappers). Proficiency in Cloud Infrastructure (AWS Kinesis, EC2, S3, or equivalent). Ability to communicate technical concepts clearly (Consultative approach). Preferred Tech Stack: Native App To Apply, Please Answer: Have you ever worked with CCTV or IoT camera SDKs before? If yes, which brands/chipsets? How would you handle the video streaming architecture to keep server costs low? Please share links to similar apps you have developed. Apply tot his job