Simply replace the unfilled areas such as "[]" and "[date]" with your information.
Dear [Company Representative or Hiring Manager],
Allow me to take this opportunity to restate my interest in joining your company in the position of [Position Title].
I am a professional with a [relevant education], extensive _[brief relevant industry experience]_ experience, and the ability to [relevant professional skill]. I eagerly await more career challenges that can be met by my [relevant "soft" skill].
My skills, accomplishments, and professional history show a strong commitment to the success of my employer. I believe my background and future goals are tailored for the position of [Position Title], and would appreciate the opportunity to interview.
Thank you for your time, [Company Representative or Hiring Manager]. I look forward to hearing from you.
Sincerely,
Encl: Resume