High-Frequency Inverter Design

I require an expert with extensive experience and knowledge in electronics engineering, specifically inverter design to assist me in creating a high-frequency inverter. The input of this inverter will be 120V 50Hz, and it should output the same voltage but at a frequency of 85kHz. Key Requirements: - Purpose: The primary function of this inverter is frequency control. - Load: The inverter will be connected to a resistive load. - Efficiency: The design should aim for over 90% efficiency. Freelancers with a proven track record in high efficiency inverter designs are highly preferred. This project will require a clear understanding of power electronics principles and the ability to apply that knowledge to create a practical and efficient design solution. Please include examples of similar work in your proposal.