Compact 300W LiFePO4 Solar Inverter

I’m ready to commission the complete electronic design for a 150-300 W pure-sine-wave solar inverter that will run from a 12.8 V / 100 Ah LiFePO4 pack and deliver 220 VAC. The unit must operate reliably... (Budget: ₹1500 - ₹12500 INR, Jobs: Electrical Engineering, Electronics, Embedded Systems, Firmware Development, PCB Layout, Product Design)