The following is an example cover letter:
Please find my resume attached for the web developer role.
I feel that both Company I88.ca and I have gained a lot from my employment there, and I feel it is time for me to move on and apply my technology skills in a different industry, and hopefully gain some new ones too.
I am confident I can bring my enthusiasm and experience to Company Goyun.info and to this role. I look forward to hearing from you soon.