Development of a Secure Remote Access Solution for Home Automation Systems

Project Description: We are seeking experienced software developers to create a comprehensive and secure remote access solution for home automation systems, similar to Nabu Casa. This project involves building a cloud-based intermediary service that allows users to connect to their home automation systems (specifically Home Assistant installations, referred to as "nrjhub") from external locations without requiring router configuration changes such as port forwarding. Objectives: - Develop a secure, scalable cloud service that facilitates connection from external networks to multiple nrjhub Home Assistant installations. - Implement a system that manages authentication and secure communication channels between users and their home automation systems. - Provide a user-friendly interface for managing connections and system settings. Key Features: 1. **Real-Time Communication**: Implement WebSockets or similar technology to ensure real-time interaction between the cloud service and the nrjhub hardware. 2. **Secure Tunneling**: Use tools like ngrok, localtunnel, or develop a custom solution using frp (Fast Reverse Proxy) to create secure tunnels from the nrjhub hardware to the cloud server. 3. **Authentication System**: Develop an authentication mechanism using OAuth 2.0/OpenID Connect with a robust identity provider like Keycloak or ORY Hydra. 4. **User Interface**: Design and develop a responsive web application and optionally a mobile app using technologies such as React, Angular, React Native, or Flutter. 5. **Database Integration**: Utilize PostgreSQL or MariaDB for user management and session handling. 6. **SSL/TLS Encryption**: Ensure all communications are secured using SSL/TLS protocols. Requirements: - Proven experience in network programming, cloud-based infrastructure, and web development. - Strong knowledge of security practices related to web communications and data encryption. - Ability to work with open-source tools and integrate multiple technologies into a seamless solution. - Experience with Home Assistant or similar home automation platforms is a plus. Deliverables: 1. A fully functional cloud service setup on a Linux VPS (VPS is already available) that acts as an intermediary for remote connections. 2. A secure authentication server setup for managing user access. 3. A web interface and mobile app for system management and user interaction. 4. Comprehensive documentation covering setup, configuration, and usage. 5. Deployment scripts and maintenance guidelines. Duration: The project is expected to take approximately 1-2 months to complete, with regular milestones agreed upon at the project start. Budget: $1000-$2000 How to Apply: Please provide a portfolio of similar projects you have worked on, particularly those involving secure web communications and cloud services. Include a brief outline of your approach to the project and any initial thoughts on potential challenges or necessary technology.