Senior system administrator resume examples from 2025

A resume summary is your opening statement that highlights your strongest skills and top accomplishments. It is your chance to quickly let recruiters know who you are professionally - and why they should hire you for the senior system administrator role.

Step 1: Start with your current job title, or the one you aspire to. Are you a passionate manager? A skilled analyst? It's a good starting point.

Step 2: Next put your years of experience in senior system administrator-related roles.

Step 3: Now is the time to put your biggest accomplishment or something you are professionally proud of.

Step 4: Read over what you have written. It should be 2-4 sentences. Your goal is to summarize your experience, not recite your resume.

These four steps should give you a strong elevator pitch and land you some senior system administrator interviews.

Use your Skills section to show you have the knowledge and technical ability to do the job. Here is how to make the most of your skills section and make sure you have the right keywords:

1. You often need to include the exact keywords from the job description in your resume. Look at the job listing and consider which of the listed skills you have experience with, along with related skills.
2. Include as many relevant hard skills and soft skills as possible from the listing.
3. Use the most up to date and accurate terms. Don't forget to be specific.

These five steps should give you a strong elevator pitch and land you some senior system administrator interviews.

A work experience section is a vital part of your resume because it shows you have the experience to succeed in your next job.

1. Put your most recent experience first. Prospective employers care about your most recent accomplishments the most.
2. Put the job title, company name, city, and state on the left. Align dates in month and year format on the right-hand side.
3. Include only recent, relevant jobs. This means if you're a fairly experienced worker, you might need to leave off that first internship or other positions in favor of highlighting more pertinent positions.

Your resume is not a list of responsibilities or a job description. Instead, it is your chance to show your accomplishments and show why you're good at what you do.

• Use the What, How, and Why format. Answering these questions turns a bland job description into an effective showcase of your abilities.
• What were your responsibilities or goals?
• How did you accomplish them?
• Why were your results important? (How did it impact your company? Can you quantify the results in numbers? )

Here are examples from great senior system administrator resumes:

Here is the best way to format your education section:

• Display your highest degree first.
• If you graduated over 5 years ago, put this section at the bottom of your resume. If you lack relevant work experience, the education section should go to the top.
• If you have a bachelor's or master's degree, do not list your high school education.
• If your graduation year is more than 15-20 years ago, it's better not to include dates in this section.

Here are some examples of good education entries from senior system administrator resumes:

If you have any additional certifications, add them to the certification section.

Start simple. Include the full name of the certification. It's also good to mention the organization that issued the certification. Next, specify when you obtained the certification.

If you have any of these certifications, be sure to include them on your senior system administrator resume:

1. Microsoft Certified Systems Engineer (MCSE)
2. VMware Certified Professional 5 - Data Center Virtualization (VCP5-DCV)
3. Certified UNIX System Administrator (CUSA)
4. Certified Information Systems Security Professional - Architecture (CISSP)
5. Pro: Windows Server 2008, Enterprise Administrator (MCITP)
6. Microsoft Certified Systems Administrator (MCSA)
7. VMware Certified Professional 6 - Cloud (VCP-Cloud)
8. Certified Information Security Manager (CISM)
9. Certified Information Systems Security Professional (CISSP)
10. Microsoft Certified Technology Specialist: .NET Framework 3.5, Windows Workflow Fnd Applications (MCTS)