Alexa integration - Home Automation , MQTT

I am looking for a skilled developer to integrate Alexa with my existing home automation system. The project needs to be completed within 1-2 weeks.

Specific features required:
- Voice control of lights and appliances

Requirements:
- Experience with Alexa integration and home automation systems
- Knowledge of MQTT protocol
- Familiarity with security systems and thermostat control

Please provide examples of previous projects involving Alexa integration and home automation.