What makes this cover letter great
This cover letter is a great example because it clearly outlines relevant technical skills and certifications, demonstrates hands-on experience with specific technologies, and provides concrete examples of past responsibilities and achievements. The candidate highlights both technical and soft skills, such as communication and teamwork, which are essential for a System Administrator. The letter is concise, well-structured, and tailored to the job, showing genuine enthusiasm for the role.
Cover letter example for System Administrator
Strong cover letter
I am excited to apply for the System Administrator position. With over five years of experience managing and maintaining enterprise IT infrastructures, I have developed a strong foundation in server administration, network management, and security best practices. My expertise includes configuring and supporting Windows and Linux servers, managing Active Directory, and implementing backup and disaster recovery solutions. I am proficient in scripting with PowerShell and Bash to automate routine tasks, and I have hands-on experience with virtualization technologies such as VMware and Hyper-V. In my previous role at Tech Solutions Inc., I was responsible for monitoring system performance, troubleshooting hardware and software issues, and ensuring high availability of critical business applications. I collaborated closely with cross-functional teams to deploy new systems and upgrade existing infrastructure, always prioritizing security and compliance. My proactive approach to patch management and vulnerability assessments helped reduce downtime and protect sensitive data. I am committed to continuous learning and have earned certifications including CompTIA Security+, Microsoft Certified: Azure Administrator Associate, and Red Hat Certified System Administrator (RHCSA). My strong communication skills and customer-focused mindset enable me to provide excellent support to end-users and stakeholders. I am confident that my technical skills and dedication to operational excellence make me a valuable addition to your IT team.
Weak cover letter
I am applying for the System Administrator job. I have some experience with servers and networks. I know how to use Windows and Linux, and I can do some scripting. I have worked with teams before and can help users with their problems. I think I would be a good fit for your company.
Cover letter best practices
Tailor Each Cover Letter to being a System Administrator
Avoid generic letters. Customize your content to reflect the specific job description, company values, and how your experience aligns with their needs.
Use a Professional Format
Stick to a clean, business-like layout with consistent fonts, spacing, and margins. Match the formatting of your resume for a cohesive application package.
Address the Right Person
Whenever possible, address the letter to a specific individual (e.g., “Dear Ms. Johnson”). Use LinkedIn or the company website to find the hiring manager’s name.
Start with a Strong Opening
Capture attention in the first paragraph by stating the position, expressing genuine interest, and previewing the value you’ll bring to the role.
Highlight Relevant Achievements
Focus on 1–2 specific accomplishments that relate directly to the job. Use metrics, outcomes, or project details to demonstrate impact.
Show You Understand the Company
Demonstrate knowledge of the company’s mission, recent news, or culture. This shows you’ve done your homework and care about where you work.
Explain Career Transitions Briefly
If you’re changing industries, roles, or returning to work, provide context for your move and highlight transferable skills.
Keep It Concise and Focused
Limit your letter to one page and avoid repeating your resume. Aim for clarity and brevity—ideally 3–4 paragraphs.
Use a Confident, Professional Tone
Write assertively without arrogance. Avoid overused buzzwords unless supported by real examples.
Close with a Clear Call to Action
End with a confident statement of interest, and invite the employer to connect or schedule an interview.
Proofread Carefully
Typos and grammatical errors can ruin a strong letter. Review it multiple times, and consider reading it out loud or asking someone else to check it.