Dear [Hiring Manager's Name],

I am excited to apply for the Backend Engineer position at [Company Name], as seen on [where you found the job posting]. With a solid foundation in server-side languages and database management, and three years of experience in backend development, I have honed my skills in building robust, high-performance applications.

At [Your Current/Previous Company Name], I was instrumental in redesigning and optimizing our backend systems, which resulted in a 50% improvement in system efficiency. My expertise in [mention specific backend technologies such as Node.js, Python, Ruby, etc.] and my methodical approach to database architecture are assets that I would bring to [Company Name].

I am impressed by [Company Name]'s innovative approach to technology and its leadership in the industry. I am enthusiastic about the opportunity to contribute to your projects and support your business goals with efficient and scalable solutions.

Thank you for considering my application. I am looking forward to discussing how my background in backend development can effectively support the technical needs of [Company Name].

Sincerely,

[Your Name]