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

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 Tennessee, Cadre5 provides innovative technical solutions to our customers locally and nationally. Our ...

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 ...

ITR

Senior Linux HPC Storage Engineer

Oak Ridge, TN

Basic Qualifications * A BS degree in computer science, computer engineering, information ... Strong Linux administration and advanced troubleshooting experience. * Experience supporting large ...

idexcel

Senior Systems Engineer

Knoxville, TN

$99K - $136K/yr

Senior Systems Engineer 810 Innovation Dr, Knoxville, Tennessee, USA 37932 10 months Contract to ... Develop industrial control applications in C on real-time OS (Linux, VxWorks). * Implement designs ...

Cadre5

Senior Platform Engineer

Knoxville, TN · On-site

$93K - $127K/yr

Senior Platform Engineer Founded in 1999 in the beautiful Smoky Mountains of East Tennessee, Cadre5 ... Strong working knowledge of Linux systems fundamentals and networked computing environment concepts

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 ... Lead ongoing improvements in reliability and scalability for our Kubernetes and Linux based ...

ITR

Site Reliability Engineer

Oak Ridge, TN · On-site

$54.50 - $72.50/hr

Senior Site Reliability Engineer, HPC Infrastructure and Platforms Overview: Seeking highly ... Linux based applications and services. * Contribute as senior technical resource to define and ...

ITR

Kubernetes Platform Engineer

Oak Ridge, TN · On-site

Senior Kubernetes Platforms System Engineer Experience level: senior-level Work location: on-site ... Strong working knowledge of Linux systems fundamentals and networked computing environment concepts

360 IT Professionals

DevOps Engineer

Knoxville, TN · On-site

$50.25 - $69/hr

... patches to Linux systems Knowledge of tuning Linux (RedHat 6.x) virtual machines Strong ... Harmanpreet Singh Walia | Sr. Talent & Client Acquisition Specialist - TAG US | 360 IT ...

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How much do senior linux engineer jobs pay per hour?

As of Sep 2, 2026, the average hourly pay for senior linux engineer in Oak Ridge, TN is $50.98, according to ZipRecruiter salary data. Most workers in this role earn between $41.73 and $62.55 per hour, depending on experience, location, and employer.

What is a senior Linux engineer?

A Senior Linux Engineer is responsible for designing, implementing, and maintaining Linux-based systems and infrastructure. They ensure system reliability, security, and performance while automating tasks using scripting and configuration management tools. This role often involves troubleshooting complex issues, optimizing system resources, and collaborating with development and operations teams. Senior Linux Engineers also contribute to scaling IT environments, integrating new technologies, and mentoring junior engineers. Strong expertise in networking, security, and cloud-based solutions is typically required for this position.

What does a senior Linux engineer do?

Senior Linux Engineers are often responsible for designing, deploying, and maintaining scalable Linux-based infrastructure, automating routine tasks, and ensuring high system availability. They regularly collaborate with software development teams, troubleshoot complex technical issues, and implement security best practices. In addition, they may participate in infrastructure upgrades, disaster recovery planning, and mentor junior team members. This combination of technical and collaborative work keeps the role both challenging and rewarding while offering opportunities for professional development.

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

To thrive as a Senior Linux Engineer, you need in-depth expertise in Linux system administration, scripting, networking, and troubleshooting, typically backed by a bachelor's degree in computer science or related field and several years of hands-on experience. Familiarity with tools such as Ansible, Docker, Kubernetes, and certifications like RHCE or LPIC are highly valued. Strong analytical skills, clear communication, and the ability to mentor junior engineers help set top performers apart. These skills are essential for maintaining reliable infrastructure, driving automation, and supporting team success in dynamic technical environments.

How much does a senior Linux engineer make?

A senior Linux engineer typically earns between $90,000 and $140,000 annually, depending on experience, location, and certifications such as RHCE or LPIC. They often work with Linux systems, scripting, and cloud environments, with higher salaries in tech hubs and for those with specialized skills.

Is Linux still in demand?

Linux engineers are in high demand due to the widespread use of Linux in servers, cloud infrastructure, and embedded systems. Skills in Linux system administration, scripting, and familiarity with tools like Bash and Docker enhance job prospects in this field.

What are the most commonly searched types of Linux Engineer jobs in Oak Ridge, TN?

The most popular types of Linux Engineer jobs in Oak Ridge, TN are:

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

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

What cities near Oak Ridge, TN are hiring for Senior Linux Engineer jobs?

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

Senior Linux Engineer jobs near you
Infographic showing various Senior Linux Engineer job openings in Oak Ridge, TN as of August 2026, with employment types broken down into 85% Full Time, 8% Part Time, 5% Contract, and 2% Nights. Highlights an 85% Physical, 5% Hybrid, and 10% Remote job distribution, with an average salary of $106,044 per year, or $51 per hour.

Senior Linux HPC Systems Engineer

Cadre5

Knoxville, TN • On-site

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 2 days ago

Job description

Senior Linux HPC Systems Engineer
Founded in 1999 in the beautiful Smoky Mountains of East Tennessee, Cadre5 provides innovative technical solutions to our customers locally and nationally. Our Cadre5 Lab Partners division has partnered with the Emerging Technologies amp; Computing (ETAC) Group in the Research Computing Support Division (RCSD) of the Information Technology Services Directorate (ITSD) at Oak Ridge National Laboratory (ORNL) to recruit a qualified Senior Linux HPC Systems Engineer. The Emerging Technology Computational Group facilitates ORNL goals through HPC systems engineering, integration, and support for the research community at ORNL. By providing design, deployment, optimization, monitoring, and tooling support across multiple clustered infrastructures, they facilitate Lab-wide R amp;D projects. Their HPC clusters range in scope from just a handful of nodes to over fifty thousand cores.
ORNL delivers scientific discoveries and technical breakthroughs needed to realize solutions in energy and national security and provides economic benefit to the nation. This premier research institution located near Knoxville in Oak Ridge, TN, addresses national needs through impactful research and world-leading research centers.
This is a full-time, permanent position that requires on-site work in Oak Ridge, TN.
Why Cadre5?
  • Working with highly talented team members
  • 3 weeks’ vacation
  • Excellent medical insurance, including employer-paid benefits
Job Responsibilities:
  • Advocate and promote HPC and clustered computing services to researchers who process large data sets and/or develop code as a part of their project.
  • Ensure the availability, performance, scalability, and security of production systems.
  • Leverage automation and monitoring solutions that minimize our day-to-day maintenance and scout opportunities to optimize system management practices or system performance.
  • Collaborate with technical POCs for the programs that we support to install and help tune the performance of various scientific toolsets.
  • Optimize both workflows and monitoring solutions to take advantage of our 24/7 operations staff, which significantly reduces the need for off-hours support. We use Email, Jira, Confluence, Teams, Slack, and other collaboration solutions to stay in contact.
Basic Qualifications:
  • A BS degree in computer science, computer engineering, information technology, business, science, or a related field of study and eight (8) to twelve (12) years of proven experience is required. An overall combination of equivalent experience may be considered.
  • Five (5) or more years with managing UNIX/Linux Systems.
  • Three (3) or years of proven experience with configuration management and automation tools such as Git, Jenkins, Ansible, or Puppet.
  • Moderate proficiency in at least one scripting language such as Bash, Python, or others.
  • Experience performing advanced troubleshooting and system administration with Linux Servers.
  • Experience supporting large data systems.
  • A strong desire to innovate and identify new technologies and opportunities and be able to communicate the potential benefits of those choices to others within the team and our research partners.
  • A collaborative and upbeat approach to thrive on the opportunity to build trust and credibility, and ultimately become a trusted advisor to our research teams.
  • The ability to obtain and maintain a Department of Energy "Q" clearance is required. This requires US Citizenship.
Preferred Qualifications:
  • Solid understanding of multiple operating systems and cluster technologies.
  • Experience with Centos/RHEL, Ubuntu, VMware
  • Understanding of HPC platforms to support users with SLURM job submissions and troubleshooting.
  • Experience building and running containerized applications in an HPC environment.
  • Experience with multiple deployment mechanisms like Diskless, Warewulf, and traditional deployment (cobbler, PXEboot, and/or Bright).
  • Experience managing systems utilizing GPU (NVIDIA and AMD) clusters for AI/ML and/or image processing.
  • Knowledge of networking fundamentals including TCP/IP, traffic analysis, common protocols, and network diagnostics.
  • Experience with Infiniband networks and diagnostics.
  • Extensive experience with High Performance Parallel File Systems (Lustre, WEKA, GPFS, etc).
  • Experience with performance and diagnostic tools for benchmarking, analysis and tuning of systems, networking, and storage.
  • Experience with Grafana, CheckMK, Nagios, Zabbix, SolarWinds, Ganglia, or other network and device monitoring systems.
  • Previous experience working in a government, scientific or other highly technical environment.
  • Good documentation skills, including ability to prepare simple documentation web pages.
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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