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Senior Linux System Administrator Jobs in Merrimack, NH

BAE Systems

Systems Admin Prin

Merrimack, NH · On-site

$118K - $200K/yr

... system administrator experience with a high school diploma. * Strong command of Linux RHEL patching workflows and package management tools (e.g., YUM/DNF). * Experience with Trellix/McAfee agent ...

BAE Systems

Systems Admin Prin

Manchester, NH · On-site

$118K - $200K/yr

Government Secret Clearance with ability to obtain a Top Secret Clearance * 10+ years of experience (7+ years of experience with a degree) as a system administrator. * Strong command of Linux RHEL ...

CAI

System Administrator

Concord, NH · On-site

$40 - $44/hr

System Administrator Req number: R8348 Employment type: Full time Worksite flexibility: Hybrid Who ... senior level technician as needed * Creates and manages DHCP reservation records utilizing ...

Dew Softech Inc

System Administrator

Concord, NH · On-site

System Administrator Location: Concord, NH (Hybrid) Position Type: Contract In-Person interview Job ... senior level technician as needed * Creates and manages DHCP reservation records utilizing ...

DEW Softech, Inc

System Administrator

Concord, NH · On-site

System Administrator Location: Concord, NH (Hybrid) Position Type: Contract In-Person interview Job ... senior level technician as needed * Creates and manages DHCP reservation records utilizing ...

Raytheon

Sr. System Administrator (onsite)

Andover, MA

$87K - $118K/yr

Experience with Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, and server ... systems (OS). * Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 ...

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Senior Linux System Administrator information

See Merrimack, NH salary details

$22.5K

$130.3K

$182.8K

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

As of Aug 25, 2026, the average yearly pay for senior linux system administrator in Merrimack, NH is $130,262.00, according to ZipRecruiter salary data. Most workers in this role earn between $109,600.00 and $153,600.00 per year, depending on experience, location, and employer.

What is a senior Linux system administrator?

A Senior Linux System Administrator is responsible for managing, configuring, and maintaining Linux-based systems and servers. They handle system performance tuning, security hardening, troubleshooting, and automation through scripting and configuration management tools. Additionally, they oversee backups, software updates, and infrastructure reliability. This role often involves mentoring junior administrators and collaborating with development and IT teams to support business operations.

What are the typical daily responsibilities of a senior Linux system administrator?

Senior Linux System Administrators are responsible for managing, maintaining, and optimizing Linux-based servers and infrastructure. Their daily tasks often include monitoring system performance, managing user permissions, applying security patches, automating processes through scripting, and troubleshooting technical issues. They regularly collaborate with developer, security, and operations teams to support new deployments and ensure system reliability. Additionally, they may mentor junior administrators and contribute to designing infrastructure improvements, making this a dynamic and influential role within IT operations.

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

To thrive as a Senior Linux System Administrator, you need deep expertise in Linux/UNIX system administration, scripting, networking, and troubleshooting, typically backed by several years of industry experience and a relevant degree or certifications like RHCE or CompTIA Linux+. Proficiency with tools such as Ansible, Puppet, Docker, and monitoring platforms, as well as experience with cloud environments, is highly valued. Strong problem-solving abilities, communication skills, and the capacity to mentor junior team members are crucial soft skills. These abilities are essential for ensuring reliable system uptime, seamless team collaboration, and effective response to complex IT challenges.

What are popular job titles related to Senior Linux System Administrator jobs in Merrimack, NH?

For Senior Linux System Administrator jobs in Merrimack, NH, the most frequently searched job titles are:

What cities near Merrimack, NH are hiring for Senior Linux System Administrator jobs?

Cities near Merrimack, NH with the most Senior Linux System Administrator job openings:

Senior Linux System Administrator jobs near you
Infographic showing various Senior Linux System Administrator job openings in Merrimack, NH as of August 2026, with employment types broken down into 1% As Needed, 74% Full Time, 20% Part Time, 1% Temporary, and 4% Contract. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution, with an average salary of $130,262 per year, or $62.6 per hour.

Sr. Principal Linux Systems Administrator

Andover, MA • On-site

Prattwhitney
See more jobs at Prattwhitneyexternal

$107.50 - $204.50/hr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Posted 6 days ago

Job description

Overview

Sr. Principal Linux Systems Administrator, Infrastructure Workplace Services, onsite in Andover, MA. Relocation may be available per policy. This role supports fast-paced, critical programs with classified information system capabilities and requires on-site presence.

What You Will Do
  • Manage and optimize Red Hat Enterprise Linux infrastructure to ensure reliable and secure IT operations.
  • Act as a senior technical resource to maintain confidentiality, integrity, and availability of assigned IT systems and applications.
  • Partner with Cybersecurity teams to maintain compliance, and provide documentation, training, and guidance on advanced IT processes and procedures.
  • Mentor and guide junior administrators across corrective and preventive maintenance, routine tasks, account management, and system performance tuning.
  • Lead and contribute to technical meetings with internal teams and program stakeholders, providing guidance and best practices.
  • Develop, document, and enforce system administration processes, standards, and best practices.
  • Participate in Change Request reviews and serve on Change Management Boards at various program levels.
  • Support 24x7 operational systems; some work outside standard hours may be required.
  • May travel to other US domestic locations up to 10% per year as needed.
Qualifications (Required)
  • Bachelor’s degree or equivalent experience; or Advanced Degree with related experience (minimum 5–8 years, depending on degree).
  • Advanced experience administering Red Hat Enterprise Linux environments.
  • Experience mentoring individuals and teams.
  • Ability to obtain DoD Directive 8140/8570 certification (e.g., CompTIA Security+ CE or equivalent) within a reasonable timeframe.
  • Ability to obtain Interim U.S. government-issued security clearance prior to start date; U.S. citizenship required for security clearance eligibility.
Preferred Qualifications
  • Experience with VMware, Kubernetes, OpenShift, Podman, Terraform and/or Ansible (Infrastructure as Code), and Windows administration.
  • Scripting/coding proficiency (Python, Go, PowerShell, Bash).
  • Experience supporting engineers in software, simulations, and hardware development.
  • Familiarity with NISPOM, JAFAN, JSIG, and DoD/RMF guidelines.
  • Strong communication skills with the ability to influence and drive change.
Location, Travel & Relocation

Onsite role located in Andover, MA. Relocation may be available per company policy. Up to 10% travel to other US domestic locations as business needs dictate.

What We Offer
  • Competitive salary range: 107,500 USD – 204,500 USD.
  • Benefits including medical, dental, vision, life, disability, 401(k) match, and more.
  • Paid time off, holidays, parental leave, Employee Scholar Program, and other programs dependent on business unit and collective-bargaining status.
  • Incentive compensation programs where applicable.
Company and Equal Opportunity

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected class. RTX maintains privacy and policy terms at the company website.

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