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Senior Unix Engineer Jobs in Oak Ridge, TN (NOW HIRING)

Cadre5

Senior Site Reliability Engineer

Knoxville, TN · On-site

$50.75 - $67.50/hr

Senior Site Reliability Engineer Founded in 1999 in the beautiful Smoky Mountains of East Tennessee ... Experience managing Linux/UNIX operating systems in a heterogeneous environment. * Solid ...

ITR

Site Reliability Engineer

Oak Ridge, TN

$54.50 - $72.50/hr

Senior Site Reliability Engineer, HPC Infrastructure and Platforms Overview: Seeking highly ... Experience managing Linux/UNIX operating systems in a heterogeneous environment. * Solid ...

Cadre5

Senior Linux HPC Systems Engineer

Knoxville, TN · On-site

Senior Linux HPC Systems Engineer Founded in 1999 in the beautiful Smoky Mountains of East ... Five (5) or more years with managing UNIX/Linux Systems. * Three (3) or years of proven experience ...

Cadre5

Senior Linux HPC Systems Engineer

Knoxville, TN · On-site

$120 - $160/hr

... qualified Senior Linux HPC Systems Engineer. The Emerging Technology Computational Group ... Five (5) or more years with managing UNIX/Linux Systems. * Three (3) or years of proven experience ...

ITR

Senior Linux HPC Storage Engineer

Oak Ridge, TN

Basic Qualifications * A BS degree in computer science, computer engineering, information ... Five (5) or more years managing UNIX/Linux systems. * Demonstrated experience managing HPC storage ...

ITR

Senior Linux HPC Systems Engineer

Oak Ridge, TN · On-site

Basic Qualifications: * A BS degree in computer science, computer engineering, information ... Five (5) or more years with managing UNIX/Linux Systems. * Three (3) or years of proven experience ...

CGI Inc.

Senior Technical Incident Manager

Knoxville, TN · On-site

$108K - $149K/yr

... of Linux/Unix and Windows server administration • Experience using ServiceNow for Incident ... Engineering, or a related field (or equivalent professional experience) CGI is required by law in ...

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Senior Unix Engineer information

See Oak Ridge, TN salary details

$56.9K

$121K

$175.4K

How much do senior unix engineer jobs pay per year?

As of Aug 24, 2026, the average yearly pay for senior unix engineer in Oak Ridge, TN is $120,994.00, according to ZipRecruiter salary data. Most workers in this role earn between $99,900.00 and $137,200.00 per year, depending on experience, location, and employer.

What does a senior Unix engineer do?

A Senior Unix Engineer is responsible for designing, implementing, and maintaining Unix-based systems within an organization. They handle advanced troubleshooting, system performance tuning, security configurations, and ensure the reliability and scalability of Unix infrastructure. In addition, they often mentor junior engineers, develop automation scripts, and collaborate with other IT teams to support business operations. Their expertise is crucial for managing large-scale, mission-critical environments.

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

To thrive as a Senior Unix Engineer, you need deep expertise in Unix/Linux system administration, scripting, troubleshooting, and a relevant degree or equivalent experience. Familiarity with automation tools (such as Ansible or Puppet), shell scripting languages (like Bash or Perl), and certifications like RHCE or CompTIA Linux+ is highly valued. Strong problem-solving skills, effective communication, and the ability to mentor junior staff help set top performers apart in this role. These skills ensure reliable systems, smooth operations, and robust support for complex enterprise environments.

What are some of the most common challenges faced by senior Unix engineers in a large enterprise environment?

Senior Unix Engineers in large enterprises often face challenges related to managing complex, heterogeneous server environments and ensuring high availability. Balancing routine maintenance, security patching, and system upgrades with the need to minimize downtime can be demanding. Additionally, staying up to date with evolving technologies and scripting languages, while coordinating with cross-functional teams like network, storage, and application groups, requires strong communication and problem-solving skills.

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

AspectSenior Unix EngineerSystem Administrator
CredentialsBachelor's in Computer Science, Unix/Linux certifications (e.g., RHCE, LPIC)Bachelor's in IT or related field, Linux/Unix certifications often preferred
Work EnvironmentDesigning, implementing, and maintaining Unix systems, often in enterprise environmentsManaging daily system operations, troubleshooting, and user support
Industry UsageTech, finance, healthcare, and large enterprisesVaries across industries, including small to large organizations
Search & Comparison IntentFocus on advanced Unix skills and system designFocus on operational support and system maintenance

The main difference is that Senior Unix Engineers focus on designing and optimizing Unix systems, while System Administrators handle daily operations and support. Both roles require similar certifications and work in related environments, but their responsibilities differ in scope and complexity.

What are popular job titles related to Senior Unix Engineer jobs in Oak Ridge, TN?

For Senior Unix Engineer jobs in Oak Ridge, TN, the most frequently searched job titles are:

What job categories do people searching Senior Unix Engineer jobs in Oak Ridge, TN look for?

The top searched job categories for Senior Unix Engineer jobs in Oak Ridge, TN are:

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Cities near Oak Ridge, TN with the most Senior Unix Engineer job openings:

Senior Unix Engineer jobs near you

Senior Site Reliability Engineer

Cadre5

Knoxville, TN • On-site

$50.75 - $67.50/hr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 8 days ago

Job description

Senior Site Reliability Engineer
Founded in 1999 in the beautiful Smoky Mountains of East Tennessee, Cadre5 provides innovative technical solutions to customers locally and nationally. Our Cadre5 Lab Partners division has partnered with the National Center for Computational Sciences (NCCS) at Oak Ridge National Laboratory (ORNL) to recruit a Senior Site Reliability Engineer for the American Science Cloud (AmSC) initiative.
AmSC is a first-of-its-kind, federally funded cloud infrastructure and API platform designed to accelerate AI model development, data sharing, and large-scale computational science across the U.S. Department of Energy (DOE). ORNL is a premier research institution delivering breakthroughs in energy, national security, and advanced computing.
Located near Knoxville, TN, the lab provides world-class resources to solve some of the nation’s most complex scientific challenges. This is a rare opportunity to be part of a groundbreaking project that will help shape the future of U.S. scientific computing. If you’re passionate about cloud engineering, DevOps, and enabling large-scale science, we’d love to hear from you!
**Please note: The first step in the interview process requires candidates to join a Microsoft Teams meeting with the video turned on.**
This is a full-time position that can telecommute. Occasional travel to the Oak Ridge facility may be required.
Why Cadre5?
  • Working with highly talented team members
  • 3 weeks’ vacation
  • Excellent medical insurance, including employer-paid benefits
Job Responsibilities:
  • Lead ongoing improvements in reliability and scalability for our Kubernetes and Linux based applications and services.
  • Contribute as senior technical resource to define and implement best practices and standards for the center.
  • Provide primary operational support and engineering for production applications.
  • Define and implement define KPIs, processes and drive continuous improvement.
  • Influence the architecture and implementation of solutions.
  • Tune operating systems and applications to increase performance and reliability of services.
  • Mentor junior staff and enable them for success.
  • Diagnose system operational problems quickly and effectively.
  • Participate in on-call rotation providing 24-hour, 7-day support and off-hours maintenance windows.
  • Coordinate with vendors to resolve hardware and software problems.
  • Deliver ORNL’s mission by aligning behaviors, priorities, and interactions with our core values of Impact, Integrity, Teamwork, Safety, and Service. Promote diversity, equity, inclusion, and accessibility by fostering a respectful workplace – in how we treat one another, work together, and measure success.
Basic Qualifications:
  • Bachelor’s Degree in computer science or closely related field and a minimum of 8 years of experience as an SRE/Systems Engineer. An equivalent combination of education and experience may be considered.
  • The ability to obtain and maintain a Department of Energy "Q" clearance may be required. This requires US Citizenship.
Preferred Qualifications:
  • Excellent interpersonal/communication skills, and the ability to work as part of a team.
  • Strong working knowledge of Unix system fundamentals and common network protocols.
  • Experience managing Linux/UNIX operating systems in a heterogeneous environment.
  • Solid understanding of networked computing environment concepts.
  • Ability to develop and maintain programs and scripts that aid in the operation and automation using various shell (primarily bash) and high-level languages (Python or Go).
  • Ability to proactively identify performance issues, problems, and areas for improvement.
  • Ability to identify requirements and to define, plan, and implement requisite solutions.
  • Ability to plan, organize, prioritize tasks, and complete assigned projects with minimal supervision.
  • Experience with continuous integration and continuous deployment software methodologies and how they apply to SRE/systems engineering.
  • An understanding of code review and familiarity with tools like GitHub and GitLab
  • Experience using tools such as Nagios, Grafana and Prometheus to monitor systems, metrics, and create dashboards.
  • Experience designing and implement highly available systems/services utilizing virtual machines and Kubernetes resources.
  • Experience participating in an opensource community with patches accepted upstream.
  • Experience deploying and maintaining automated configuration management software such as Puppet or Ansible
  • Experience implementing systems-level security technologies like SELinux and following security best practices.
Benefits
Cadre5 offers excellent pay and benefits, to include full medical, dental, and vision coverage coupled with 401K match, 15 days PTO, and 10 holidays.
Cadre5 is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply. Cadre5 is an E-Verify Employer.
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About Cadre5

Sourced by ZipRecruiter

Industry

Software development

Company size

11 - 50 Employees

Headquarters location

Knoxville, TN, US

Year founded

1999

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