Home Automation Controller Board Design

I need a custom controller board for home automation. The board should manage the following components:

Lights
Relay
Real Time Clock (RTC)
RF Receiver
SD Card Interface
RS485 Communication

It should communicate via Ethernet.

Ideal Skills and Experience:
- Experience with designing custom controller boards
- Proficiency in Ethernet communication protocols
- Knowledge of interfacing with lights, relays, and other specified components
- Familiarity with RS485 and SD card integration
- Strong background in home automation systems