You need a job offer from an Employer registered and trading in Ireland to apply for a Spouse permit

The spouse or dependant must be legally resident in the State on the basis of being a dependant of the employment permit holder, who must have one of the following:

• A valid Green Card Permit; or
• A valid permit of 12 months or more duration; or
• A valid Working Visa issued before the 31st December, 2006; or
• A valid Work Authorization issued before the 31st December, 2006; or
• A valid Intra-Company Transfer Permit of 12 months or more duration; and

The employment permit holder must still be working within the terms of their employment permit.