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Sr. Unix System Administrator Jobs (NOW HIRING)

Intepros Federal

Senior UNIX System Engineer

Radford, VA · On-site

$99K - $135K/yr

The Senior UNIX System Engineer will work with the existing UNIX team to manage, maintain, deploy ... Five or more years of experience as a UNIX/Linux Systems Administrator or IT Engineer, including ...

E*Pro, Inc.

UNIX System Administrator

Irving, TX

Unix System Administrator Location : Irving, TX Job Type : Permanent Full Time US Citizen/ Green Card Holder/EAD (GC) can apply for this Job Required Skills: Minimum of 5-7 years of experience in ...

IntePros Federal

Senior UNIX System Engineer

Radford, VA

$99K - $135K/yr

The Senior UNIX System Engineer will work with the existing UNIX team to manage, maintain, deploy ... Five or more years of experience as a UNIX/Linux Systems Administrator or IT Engineer, including ...

IntePros Federal

Senior UNIX System Engineer

Radford, VA · On-site

$99K - $135K/yr

The Senior UNIX System Engineer will work with the existing UNIX team to manage, maintain, deploy ... Five or more years of experience as a UNIX/Linux Systems Administrator or IT Engineer, including ...

ChaTeck Incorporated

Senior Linux/UNIX System Administrator Location: Brevard County , FL 32925 Let's create our future together at The AES Group! About The AES Group: The AES Group is a premier technology and ...

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Sr Unix System Administrator information

What are some common challenges faced by Sr. Unix System Administrators in maintaining large-scale enterprise environments?

Sr. Unix System Administrators often encounter challenges such as managing complex system architectures, ensuring high availability, and minimizing downtime during critical updates or migrations. Balancing security with user accessibility, staying current with rapidly evolving technologies, and responding to incidents promptly are also key responsibilities. Collaboration with development, network, and security teams is essential to troubleshoot multifaceted issues and implement robust, scalable solutions.

What does a Sr. Unix System Administrator do?

A Sr. Unix System Administrator is responsible for managing and maintaining Unix-based servers and systems within an organization. Their duties include installing, configuring, and upgrading Unix operating systems, monitoring system performance, ensuring security, and troubleshooting issues. They also perform backups, manage user accounts, automate routine tasks using scripting, and provide technical support to other IT staff. Senior administrators often mentor junior team members and help design system architecture to ensure reliability and scalability.

What are the key skills and qualifications needed to thrive as a Sr. Unix System Administrator?

To thrive as a Sr. Unix System Administrator, you need deep expertise in Unix/Linux operating systems, scripting, troubleshooting, and a strong background in IT infrastructure, often supported by a bachelor’s degree and relevant experience. Familiarity with configuration management tools (like Ansible or Puppet), virtualization platforms, shell scripting, and certifications such as RHCE or CompTIA Linux+ are typically required. Exceptional problem-solving, communication, and teamwork skills help you effectively manage complex environments and collaborate with cross-functional teams. These skills are crucial for ensuring system reliability, security, and optimal performance in mission-critical enterprise settings.

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

AspectSr. Unix System AdministratorLinux Systems Engineer
CertificationsUnix/Linux certifications (e.g., LPIC, RHCE)Linux certifications (e.g., RHCE, CompTIA Linux+)
Work EnvironmentUnix-based servers, enterprise data centersLinux servers, cloud environments
Industry UsageFinancial, healthcare, governmentTech companies, startups, cloud providers
Job FocusMaintaining Unix systems, troubleshooting, scriptingDesigning, deploying, optimizing Linux infrastructure

The main difference is that Sr. Unix System Administrators focus on managing and maintaining Unix-based systems in enterprise environments, while Linux Systems Engineers are more involved in designing and deploying Linux infrastructure, often in cloud or development settings. Both roles require similar certifications and technical skills but differ in scope and application.

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What job categories do people searching Sr. Unix System Administrator jobs look for? The top searched job categories for Sr. Unix System Administrator jobs are:
Sr Unix System Administrator jobs near you
Infographic showing various Sr. Unix System Administrator job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 12% Part Time, and 3% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution.

Sr. Unix System Administrator

LCI-Lawinger Consulting

Denver, CO • Remote

$175K - $200K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 8 days ago

Job description

Location: Remote (U.S.) or Arvada, CO (Hybrid/On-Site Available)
Job Type: Full-Time

About the Role

We're seeking an experienced Senior UNIX Systems Administrator with deep expertise in commercial UNIX environments, specifically AIX, HP-UX, and Solaris.

This is not a Linux administration position with occasional UNIX work. We're looking for a true UNIX expert who enjoys solving complex production issues, supporting enterprise customers, and working with technologies that many organizations still rely on for mission-critical operations.

You'll work directly with customers to troubleshoot, diagnose, and resolve challenging infrastructure issues involving operating systems, storage, clustering, networking, virtualization, and performance optimization.

If you're passionate about enterprise UNIX and enjoy tackling problems others can't solve, we'd love to hear from you.

Responsibilities
  • Resolve advanced UNIX infrastructure and operating system issues for enterprise customers
  • Troubleshoot complex storage, networking, performance, boot, and clustering problems
  • Support production environments running AIX, HP-UX, and Solaris
  • Implement solutions remotely and occasionally on-site
  • Participate in a low-frequency on-call rotation for critical customer escalations
  • Maintain and expand internal UNIX lab environments for testing and validation
  • Share technical expertise through quarterly webinars and knowledge sharing
  • Continuously learn and develop expertise across supported UNIX platforms
Required QualificationsCommercial UNIX Experience

Candidates must have strong hands-on production experience with at least two of the following platforms:

  • IBM AIX
  • HP-UX
  • Oracle Solaris

Experience supporting all three platforms is highly preferred.

Technical Expertise

Qualified candidates should demonstrate experience with many of the following:

  • Enterprise UNIX administration and troubleshooting
  • Logical Volume Manager (LVM)
  • Filesystem administration (JFS/JFS2, ZFS, VxVM, SVM)
  • High Availability clustering (PowerHA/HACMP, Serviceguard)
  • Shell scripting (ksh, sh, bash)
  • Performance tuning and diagnostics
  • Enterprise storage (SAN, Fibre Channel, multipathing)
  • NFS and SMB/CIFS administration
  • TCP/IP networking and troubleshooting
  • LDAP, Active Directory integration, PAM, and Kerberos
  • Patch management and security hardening
  • Operating system installation, upgrades, and disaster recovery
  • Boot process troubleshooting across enterprise UNIX platforms
Preferred Qualifications

Experience with any of the following is a plus:

  • PowerHA / HACMP
  • Serviceguard
  • Solaris Zones or Logical Domains (LDOMs)
  • NIM or Ignite-UX
  • Veritas Volume Manager
  • SPARC systems
  • IBM Power Systems
  • NetApp, EMC, Ceph, GPFS, or Lustre storage
  • Python, Perl, or Ruby automation
  • Legacy UNIX platforms such as Tru64 or IRIX
What We're Looking For

We're looking for a senior-level engineer who:

  • Has extensive production experience supporting enterprise UNIX environments
  • Can independently troubleshoot highly complex technical issues
  • Enjoys solving difficult infrastructure problems
  • Is comfortable working directly with customers
  • Thrives in a collaborative, highly technical team

This position is not intended for Linux administrators with limited exposure to AIX, Solaris, or HP-UX. Candidates should have substantial experience administering commercial UNIX operating systems in production environments.

Why Join Us?
  • Work alongside a team of highly experienced UNIX professionals
  • Support mission-critical enterprise environments
  • Access to a dedicated multi-platform UNIX lab
  • Remote flexibility within the United States
  • Opportunities to continue expanding your UNIX expertise
  • High-impact work with a wide variety of enterprise customers
Benefits
  • Medical, Dental & Vision Insurance
  • Health Savings Account (HSA) with employer contributions
  • Employer-funded Life Insurance
  • 401(k) with employer contributions
  • Employee Ownership Program
  • Unlimited Paid Time Off
  • Paid Company Holidays
  • Flexible work environment (Remote, Hybrid, or On-Site)
Apply Today

If you're an experienced UNIX administrator with expertise in AIX, HP-UX, Solaris, or multiple commercial UNIX platforms, we'd like to speak with you.

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