Need help installing smart home devices and automation system

I'm looking for someone experienced in home automation to help install and set up smart devices throughout my house. This includes smart lights, thermostats, and security cameras. I want everything to be integrated and controlled via a single app. Ideally, the person should be familiar with popular smart home platforms and able to troubleshoot any connectivity issues. The house is a two-story with about 150 square meters. Looking for a reliable and knowledgeable professional to get this done efficiently.