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Senior Linux System Engineer Jobs in Exeter, NH (NOW HIRING)

Mercury Systems

Senior Test Engineer

Hudson, NH · On-site

Mercury Systems is seeking a Test Engineer III to lead test efforts in developing and executing ... Proficient in Linux-based development and test workflows, (ie: including scripting, permissions ...

Smith & Nephew

Senior Systems Engineer

Andover, MA · On-site

$111K - $167K/yr

As a Senior Systems Engineer within our Sports Medicine R&D organization, you will play a critical ... Contributing to system architecture including functional and physical design and interface ...

DEKA

Senior Quality Systems Engineer

Manchester, NH · On-site

$88K - $119K/yr

As a Senior Quality Systems Engineer, you'll be working closely with the QA & Compliance Manager ... Ensure the quality system is fit for purpose, and drive QMS improvements and changes through to ...

BAE Systems

Eng Sr - SW

Hudson, NH · On-site

$97K - $164K/yr

Work collaboratively with multidisciplinary teams including systems, hardware, and test engineers ... Experience developing in Linux environments * Hands-on experience with version control and ...

Freseniusglobal

Sr Engineer (Systems-Risk)

North Andover, MA · Hybrid

$112K - $153K/yr

Performs additional R&D system engineering activities as needed including requirements management ... Advise senior management regarding appropriate action. Works on solving complex issues within ...

Fresenius Kabi

Sr Engineer (Systems-Risk)

Andover, MA · On-site

$105K - $144K/yr

Performs additional R&D system engineering activities as needed including requirements management ... Advise senior management regarding appropriate action. Works on solving complex issues within ...

Saab

Senior Software Engineer

West Boxford, MA · On-site

$138K - $180K/yr

Saab Inc.'s Autonomous and Undersea Systems (AUS) division is seeking an innovative and experienced ... Scripting languages including Linux/Unix Shells, Matlab, etc. * Integrated Development Environments ...

Saab

Senior Software Engineer

Gloucester, MA · On-site

$138K - $180K/yr

Saab Inc.'s Autonomous and Undersea Systems (AUS) division is seeking an innovative and experienced ... Scripting languages including Linux/Unix Shells, Matlab, etc. * Integrated Development Environments ...

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All JobsSenior Linux System Engineer JobsSenior Linux System Engineer Jobs in Exeter, NH

Senior Linux System Engineer information

See Exeter, NH salary details

$102.3K

$130.2K

$161.3K

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

As of Jun 16, 2026, the average yearly pay for senior linux system engineer in Exeter, NH is $130,166.00, according to ZipRecruiter salary data. Most workers in this role earn between $120,100.00 and $140,400.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Senior Linux System Engineer, and why are they important?

To thrive as a Senior Linux System Engineer, you need deep expertise in Linux operating systems, scripting (such as Bash, Python, or Perl), system architecture, and a relevant degree or equivalent experience. Familiarity with configuration management tools (like Ansible or Puppet), virtualization platforms, cloud services, and certifications such as RHCE or LPIC are highly valued. Strong problem-solving, collaboration, and communication skills help you efficiently manage complex environments and mentor junior staff. These capabilities are crucial for ensuring system stability, security, and scalability in mission-critical IT infrastructures.

What are some common challenges a Senior Linux System Engineer faces when managing large-scale server environments?

Senior Linux System Engineers often encounter challenges related to maintaining system uptime, managing complex configurations, and ensuring security across a large number of servers. Troubleshooting issues in distributed environments, automating repetitive tasks, and keeping systems up-to-date with the latest patches are also frequent responsibilities. Collaboration with development, security, and networking teams is essential to resolve cross-functional issues and implement new solutions efficiently. Staying current with evolving technologies and best practices is key to overcoming these challenges and excelling in the role.

What does a Senior Linux System Engineer do?

A Senior Linux System Engineer is responsible for designing, implementing, maintaining, and troubleshooting Linux-based systems and servers within an organization. They ensure the reliability, security, and optimal performance of these systems, often leading projects and mentoring junior engineers. Their tasks may include automation, scripting, system updates, monitoring, and responding to incidents. They also collaborate with other IT teams to support business needs and implement best practices for system administration.

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

AspectSenior Linux System EngineerLinux System Administrator
CertificationsLinux Professional Institute Certification (LPIC), RHCELPIC, RHCE often preferred
Work EnvironmentDesigning, implementing, and optimizing Linux infrastructureMaintaining and supporting existing Linux systems
ResponsibilitiesAdvanced troubleshooting, system architecture, scriptingSystem setup, user management, routine maintenance

The Senior Linux System Engineer typically focuses on designing and optimizing Linux environments, requiring advanced skills and certifications. In contrast, the Linux System Administrator handles daily maintenance and support tasks. Both roles often require similar certifications and work in similar environments, but their responsibilities differ in scope and complexity.

What cities near Exeter, NH are hiring for Senior Linux System Engineer jobs? Cities near Exeter, NH with the most Senior Linux System Engineer job openings:
Senior Linux System Engineer jobs near you
Infographic showing various Senior Linux System Engineer job openings in Exeter, NH as of June 2026, with employment types broken down into 83% Full Time, 13% Part Time, and 4% Contract. Highlights an 89% Physical, 4% Hybrid, and 7% Remote job distribution, with an average salary of $130,166 per year, or $62.6 per hour.
Senior Test Engineer

Senior Test Engineer

Mercury Systems

Hudson, NH • On-site

Full-time

Posted 28 days ago

Mercury Systems rating

8.2

Company rating: 8.2 out of 10

Based on 7 frontline employees who took The Breakroom Quiz

36th of 139 rated electronics manufacturers

Job description

Job Summary:
Mercury Systems is seeking a Test Engineer III to lead test efforts in developing and executing server systems for mission critical aerospace and defense applications. This role plays a pivotal part in ensuring product reliability, performance, and security across the full engineering lifecycle from concept to sustainment. You will have the opportunity to make an impact and gain breadth and depth of experience by working on multiple projects in a fast-paced environment in a collaborative multi-disciplined engineering team.
Job Responsibilities:
  • Implement standardized system testing practices across Mercury's ruggedized servers and secure software product lines.
  • Design and implement robust test procedures that meet military standards (e.g., MIL-STD-810, DO-461, DO-167, DO-178C, DO-254) and cybersecurity requirements
  • Oversee and conduct functional, environmental, stress, and security testing of hardware and software systems, ensuring performance in extreme conditions and mission-critical environments
  • Collaborate with software development teams to integrate and validate secure software solutions
  • Partner with systems engineering, hardware design, and software development teams to align test objectives with product requirements; coordinate with program managers to meet timelines and deliverables
  • Ensure all testing procedures developed comply with strict security protocols and regulatory standards, leveraging active security clearance for classified projects
  • Support the development of tools to streamline test analysis, reporting, and documentation
  • Assist in defining and developing tools to streamline test analysis and reporting
  • Establish and maintain test requirements for test equipment and work with Test Support to bring test equipment to operational status
  • Prepare comprehensive test documentation including acceptance test plans, test reports, and performance metrics for internal stakeholders and external customers, including government agencies as well as present findings to senior leadership and clients
  • Support the standardization of systems used to track testing issues and document results
  • Collaborate with Mission Assurance teams to conduct root cause analyses for issues identified during testing and sustainment

Required Qualifications:
  • Bachelor of Science degree in Engineering or a related field. Typically requires a minimum of 4+ years' experience in testing similar systems.
  • Prior experience with Aerospace, Defense, Government or Military Sectors
  • General understanding of engineering principles and demonstrated application of those concepts with a focus on safety and regulatory compliance
  • Experience in developing and executing verification and validation test procedures
  • Proficient in Linux-based development and test workflows, (ie: including scripting, permissions management, command-line navigation, and process monitoring).
  • Solid understanding of system and subsystem requirements & specification generation processes
  • Proven ability to lead testing initiatives and demonstrate expertise across hardware, electrical, and software systems in various environments.
  • Ability to obtain and maintain an active U.S. Secret Security Clearance. This position requires you to have or can obtain a government security clearance. Security clearances may only be granted to U.S. citizens.

Preferred Qualifications:
  • An active DoD Secret Clearance
  • Proficiency in Python, Bash, or other programming languages used for data collection and analysis
  • Familiarity with engineering lifecycle tools such as Jama, Jira, BitBucket
  • Skilled in documentation and collaboration platforms, including Confluence and SharePoint
  • Hands-on experience testing hardware in various environments (e.g. rugged, extreme temperatures, shock, vibration)
  • Familiarity with military standards such as MIL-STD-810, MIL-STD-461, and MIL-STD-1275
  • Demonstrated leadership experience with the ability to guide Integrated Product Teams (IPTs) through ambiguity and tight deadlines
  • Experience supporting both military and commercial programs

Why should you join Mercury Systems?
Mercury Systems is a technology company that makes the world a safer, more secure place. We push processing power to the tactical edge, making the latest commercial technologies profoundly more accessible for today's most challenging aerospace and defense missions. From silicon to system scale, Mercury enables customers to accelerate innovation and turn data into decision superiority. Headquartered in Andover, Massachusetts, Mercury employs more than 2,300 people in 24 locations worldwide. To learn more, visit mrcy.com
Our Culture
We are committed to making Mercury a great place to work, no matter where our employees are located. We offer a casual and enjoyable atmosphere that allows employees to learn and grow. We help and care for one another and work as one to achieve results for us and for our customers. We value communication and transparency, and strive to foster two-way dialogue at all levels of the organization. We are committed to lifelong learning, offering comprehensive skills training and tuition reimbursement. Whether you're just starting out on your career journey or you are an experienced professional, it's important to us that you feel recognized and rewarded for your contributions.
To find out more about Why Mercury?, or visit the Mercury Community or find answers to general questions at Mercury FAQs
Mercury Systems is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex (including pregnancy), sexual orientation, gender identity, national origin, genetic information, creed, citizenship, disability, protected veteran or marital status.
As an equal opportunity employer, Mercury Systems is committed to a diverse workforce. In order to ensure reasonable accommodation for individuals protected by Section 503 of the Rehabilitation Act of 1973, the Vietnam Veterans' Readjustment Act of 1974, and Title I of the Americans with Disabilities Act of 1990, applicants that require accommodation in the job application process may contact the number below for assistance.
(978) 256-1300
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