As long as you get the company, or a colleague, to give a full description of the responsibilities you have, this slight problem can be got round. The job title you currently have doesn't matter. (After all, an employer can call a job anything he feels like, and it doesn't have to match up to anything, or be descriptive at all - e.g. 'Room 12 supervisor', or 'assistant to Mr Brown'.) Therefore, it's the job descriptions, giving the range of skills used, responsibilities taken and qualifications required for each employment, which will be taken into consideration by NZQA.