If you have heard on the grapevine that there is a position at a company, you may either work for the company already or you may have a friend who has informed you of a position and you would very much be interested.
An employer may want to know where you have heard about their future recruitment plans and this is where you need to be careful so that you do not get anyone into trouble. If it is a friend who has advised you to apply, would your friend consider approaching the manager and telling them that they have a friend interested in the role so that you can freely apply? If not then it may be a case of you applying on a speculative basis and maybe referring to your friend as someone who recommended the company to you. A lot of companies operate a recommend a friend system for vacancies so it will all depend on the company type.
If you are looking for an example of how to write a cover letter to apply for a role that has not yet been advertised, please see the below example which you can use as a guide.
Related: Speculative Cover Letter
Cover Letter for Unadvertised Job Openings
Mr. A. Employee
1, My House
Mrs. A. Manager
Speculative Application – JOB TYPE
I have been referred to your company by a friend of mine who works for you (NAME OF FRIEND) and I wanted to send in my CV as I am an experienced WHAT looking for a fresh challenge and your company comes highly recommended.
Having done my research into your company I particularly like your vision for your services/products/future and would very much like to be a part of that.
My skills and experiences come from WHERE – give a brief synopsis of your CV including any qualifications that could be relevant or specific to the area they are looking to recruit in.
Thank you for reading my letter and CV, I very much appreciate the time you have given me and should you have any questions for me, please do not hesitate to contact me.
I look forward to hearing from you.