Simply replace the unfilled areas such as "" and "[date]" with your information.
Dear [Hiring Manager],
As an employee of [Company] for over [number] years, I am dedicated to the values that have produced our success. As this company grows, I see even more opportunities where I can contribute to this success. Therefore, I am writing to express my interest in the [Position] within your department.
My qualifications include a [degree level] in [degree field]. My professional background before [Company] includes working in demanding environments such as [former employers]. My record within this organization is full of professional achievements and promotions. My accomplishments, including [relevant project] and [additional project], have all been to the benefit of this company.
My talents and abilities would greatly benefit your department in the position of [Position Name]. As you can see from my previous achievements, my professional experience, coupled with my result-oriented attitude, drives my ability to deliver superior solutions. My communication skills help me to build strong professional partnerships with my team members. All of these are traits valued by this organization.
My additional talents are listed in the enclosed resume. In an effort to discuss this matter further, I will contact you to see if we might set up a time to meet.