I have a query. My primary noc is 2173 - Software engineer. I have 2 years relevant work experience to this occupation . I tried to obtain a reference letter for it but my title seems as a "Researcher" and there is no job description in anywhere. Contract says "since it is confidential, we can't share your job description". After this, I searched NOC catalog for "researcher" but there is none. I also have teaching assistant experience for 4 years. They can see I am a computer engineer and I gave courses about software engineering.Problem is I can't change my primary noc right now since I got Noi with it.Do you think a reference letter with different title and with no description on it will be a problem( only mentions it was an IT department). Can I explain this with LOE?