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Senior Unix System Administrator Jobs in Florida

ARSIEM

DoD Instructor (Windows/Linux)

Pensacola, FL · On-site

Host and network-based system security mechanisms * 3-5 years of experience as a UNIX-like developer/administrator with CLI experience * Red Hat Certified System Administrator (RHCSA), Red Hat ...

ARSIEM

DoD Instructor (Windows/Linux)

Pensacola, FL · On-site

Host and network-based system security mechanisms * 3-5 years of experience as a UNIX-like developer/administrator with CLI experience * Red Hat Certified System Administrator (RHCSA), Red Hat ...

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Senior Unix System Administrator information

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$36.6K

$76.4K

$107.2K

How much do senior unix system administrator jobs pay per year?

As of Aug 22, 2026, the average yearly pay for senior unix system administrator in Florida is $76,395.00, according to ZipRecruiter salary data. Most workers in this role earn between $64,300.00 and $87,100.00 per year, depending on experience, location, and employer.

What is a senior Unix system administrator?

Senior Unix System Administrators are experienced IT professionals who manage, maintain, and troubleshoot Unix or Linux-based server systems within an organization. They are responsible for ensuring system reliability, security, and performance by configuring servers, applying updates, monitoring system health, and responding to incidents. In addition to technical duties, they may also mentor junior admins, design system architecture, and implement automation tools to streamline operations. Their expertise is essential for organizations that rely on Unix or Linux servers for critical applications and data management.

What are the key skills and qualifications needed to thrive as a senior Unix system administrator?

To thrive as a Senior Unix System Administrator, you need deep expertise in Unix/Linux operating systems, scripting languages (such as Bash, Python, or Perl), and a strong understanding of networking and security principles, usually backed by relevant certifications or degrees. Familiarity with configuration management tools (like Ansible or Puppet), virtualization platforms, and monitoring systems is typically required. Strong problem-solving, communication, and leadership skills help you manage complex issues and mentor junior staff. These skills and qualities are crucial for maintaining system reliability, optimizing performance, and ensuring secure, efficient IT operations.

What are some common challenges senior Unix system administrators face when managing large-scale, multi-user environments?

Senior Unix System Administrators often deal with challenges such as maintaining system uptime across multiple servers, ensuring security compliance, and managing complex patching schedules in environments with numerous users. Balancing proactive monitoring with rapid incident response is crucial, as is collaborating with developers, network engineers, and support staff to troubleshoot issues efficiently. Additionally, adapting to evolving technologies and automating repetitive tasks are key to maintaining system performance and reliability.

What is the difference between Senior Unix System Administrator vs Linux Systems Engineer?

AspectSenior Unix System AdministratorLinux Systems Engineer
CertificationsUnix/Linux certifications (e.g., LPIC, RHCE)Linux certifications (e.g., RHCE, CompTIA Linux+)
Work EnvironmentUnix servers, enterprise data centersLinux servers, cloud environments
Industry UsageFinancial, telecom, large enterprisesTech companies, startups, cloud providers
Job FocusSystem maintenance, troubleshooting, scriptingDeployment, automation, infrastructure design

Both roles require Linux/Unix knowledge and certifications, but Senior Unix System Administrators focus more on maintaining enterprise Unix systems, while Linux Systems Engineers often work on deploying and automating Linux environments, especially in cloud and development settings.

What cities in Florida are hiring for Senior Unix System Administrator jobs?

Cities in Florida with the most Senior Unix System Administrator job openings:

Infographic showing various Senior Unix System Administrator job openings in Florida as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 13% Part Time, and 3% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $76,395 per year, or $36.7 per hour.

Senior Specialist Systems Administrator

L3HHCM20

Melbourne, FL • On-site

$79K - $147K/yr

Full-time

Medical, Retirement, PTO

Re-posted 22 days ago

Job description

Job Title: Senior Specialist, System Administrator

Job Code: 42550

Job Location: Melbourne FL, Rochester NY

Job Schedule: 9/80

 

Job Description:

The Linux Enterprise System Administrator is responsible for maintaining, managing, configuring, and troubleshooting Linux systems in secure program areas. Duties include installing, configuring, troubleshooting, upgrading, patching, and maintaining Linux and related NetApp storage units, as well as maintaining engineering software tools. This person must be able to communicate technical concerns and solutions to various levels of management, engineering, and security teams, as well as lead IT projects at the local level. Perform other IT duties as required. 

 

Essential Functions:

  • Subject Matter Expert responsible for the configuration and maintenance of Linux while ensuring system reliability, data integrity, and availability. 
  • Implement routine system updates and patches, remediate findings and vulnerabilities while maintaining compliance with industry standards. 
  • Monitor system health and proactively identify and resolve performance issues. 
  • Develop and maintain scripts and tools for deployment automation, striving for increased efficiency in our operational processes. 
  • Collaborate with engineering teams to understand program requirements and deliver tailored technical solutions. 
  • Communicate complex technical issues and strategies to management and non-technical stakeholders in a clear and concise manner. 

 

Qualifications:

  • Bachelor's Degree and minimum 6 years of prior relevant experience. Graduate Degree and a minimum of 4 years of prior related experience. In lieu of a degree, minimum of 10 years of prior related experience. 
  • Four years of Linux and/or NetApp systems administration experience. 
  • Two years of experience with VMware or similar virtualization solutions. 
  • One year of experience with Ansible Automation.
  • Strong knowledge of Linux operating systems, NetApp Storage Devices, networking protocols, PowerShell or Bash, and security best practices.          
  • Current/active TS/SCI security clearance and CI Polygraph are required. 
  • CompTIA Security +, CISSP or any DoD 8570 IAT level I or higher approved certification. 
  • Ability to support overtime, as needed, and ability to lift equipment (50 LBS).
  • Ability to support up to 20% offsite travel.

Preferred Additional Skills:

  • Experience working with Nessus Security Center.
  • Experience with Cisco/Ariba Network and network protocols.
  • Experience working with Windows Distributed File System (DFS).
  • Experience working with Active Directory.
  • Experience with Commvault or similar backup solution.
  • Experience managing systems under the NIST Risk Management Framework.

In compliance with pay transparency requirements, the salary range for this role in New York state is $79,500 - $147,500. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including health and disability insurance, 401(k) match, flexible spending accounts, EAP, education assistance, parental leave, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements.

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