Requirements for the Employer Nomination Scheme Visa (186 visa) is that the employer is lawfully operating in Australia, have the need for a paid employee to fill the position, and have a record of compliance with workplace laws that is satisfactory. The employer, if compliant, then Nonminates you for this visa.
The employee themselves must be under the age of forty-five, must have at least competent English , having an approved employer nomination, being able to prove that they have the necessary qualifications and experience for the occupation plus any licencsing requirements, and meeting certain character and health requirements.
A Registered Migration Agent can assist in helping with ensuring all requirements are met.