Embedded code developer need for TMS microcontroller

I have to develop a hybrid solar inverter of 5 kVA capacity.For that, I need firmware code developer who can write code, test and debug and support for prototype testing of model needs to apply for it. Only agency/ embedded software service company personnel needs to apply here. We will not entertain any individual or freshers on it. We needs to verify previous work experience/ credential to evaluate the party before awarding work.