Senior Red Hat Linux Engineer

Tetra Tech; New Jersey; On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

On-site work

Job summary

LS Technologies is seeking a Senior Red Hat System Administrator/Engineer to support on-prem IT infrastructures running RHEL in a virtualized environment.

You will develop and maintain RHEL deployments, automate with Ansible, and integrate DevSecOps practices while ensuring security compliance across systems and containers.

Qualifications

• 10+ years of Red Hat Linux systems engineering with hands-on Kubernetes/OpenShift
• Experience with DISA STIGs and automated remediation tooling
• BSCS or equivalent prefixed; RHCE/RHCA/CKA would help

Responsibilities

• Design, deploy, and maintain RHEL deployments in a multi-platform environment
• Automate lifecycle with Ansible playbooks and roles across OS, VMs, and containers
• Implement security hardening, patching, and tuning in production environments
• Support container platforms such as OpenShift and Kubernetes clusters
• Prepare engineering docs, SOPs, change requests, and runbooks

Skills

Red Hat Linux

Kubernetes/OpenShift

Ansible

DISA STIGs

Container platforms

Education

B.S. in Computer Science

Tools

OpenSCAP

SCAP Compliance Checker

Job description

Job Description

LS Technologies, a Tetra Tech company, is seeking a Senior Red Hat System Administrator or Engineer who will support on-prem IT infrastructures running Red Hat Enterprise Linux (RHEL) in a virtualized environment. You will provide Second Level Engineering support for systems providing enterprise cybersecurity services in a dev/test/prod deployment environment supporting critical FAA cybersecurity capabilities.

In this role, the Senior Red Hat System AdministratorEngineer will work as part of a dynamic team of network and application administrators and engineers and will be responsible for developing and maintaining RHEL deployments supporting cybersecurity applications. You’ll work with teammates to design, configure, test, and deploy automation of task and integration of RHEL into the infrastructure ecosystem. You will apply strong security best practices and assist with developing an approach for patching, upgrades, and tuning when system maintenance is required. The Senior Red Hat System AdministratorEngineer will support the development and management of container technologies and the integration of DevSecOps solutions. You will also be responsible for the development and maintenance of operations-related documentation, including configuration data, change requests, installation procedures, knowledge base articles, Standard Operating Procedures (SOPs), engineering diagrams, and test plans.

Job Duties & Responsibilities (may include but are not limited to):

• Requirements development, analysis and supporting comprehensive trade studies
• Engineer or design storage requirements to support virtual deployments of applications using RHEL
• Provision, scale, and maintain enterprise container platforms (e.g., Red Hat OpenShift, Kubernetes)
• Manage cluster networking, persistent storage integration, and node health.
• Design and maintain sophisticated Ansible playbooks and roles to automate the entire lifecycle—from bare OS provisioning and virtual machine deployment to container cluster configuration and application rollouts
• Implement and enforce DISA STIG standards across both the Linux operating system layer and the container runtime environments
• Act as the highest escalation point for complex technical issues spanning the operating system, hypervisor, network, and container orchestrator
• Ability to apply system engineering techniques to solve and mitigate cyber vulnerabilities
• Experience working in a multi-platform (Microsoft, RHEL, VMWare,) infrastructure.
• Experience with RHEL 8 , RHHI, Openshift, Ansible
• Experience with using ticketing systems and Tier II or higher helpdesk
• Knowledge of Linux iptables, networking configuration, and DNS
• Minimum of 10 years of hands‑on experience designing, developing, and deploying RHEL environments
• Ability to work independently and in a group to resolve technical issues in a dynamic environment

Qualifications

Required: A successful candidate will have

• 10 years of experience performing Red Hat Linux systems engineering, with at least 3 years of hands‑on experience architecting and managing production‑grade Kubernetes or Red Hat OpenShift environments
• Proficiency managing traditional virtualized IT infrastructure (storage, LVM, networking) while simultaneously supporting container technologies and microservices
• Demonstrated experience with
• Experience in hardening enterprise environments using DISA STIGs, utilizing tools like OpenSCAP, SCAP Compliance Checker (SCC), or automated remediation playbooks
• Minimum of a B.S. in Computer Science preferred

Preferred

• Red Hat Certified Engineer (RHCE) or Red Hat Certified Architect (RHCA)
• Red Hat Certified Specialist in OpenShift Administration or Certified Kubernetes Administrator (CKA)
• CompTIA Security or equivalent

Work Requirements:

• Work location: William J Hughes Technical Center, Atlantic City, NJ or Mike Monroney Aeronautical Center, Oklahoma City, Oklahoma
• Position is: Completely in‑person/on‑site
• Work Hours: 40/week
• Travel: Minimal, but possible

Background check: Must have Secret Clearance

Physical requirements:

• Extended Computer Use: Regular and prolonged periods of working at a computer terminal.
• Lifting and Carrying: Occasional lifting of equipment and materials weighing up to 50 pounds may be required during installations or maintenance.
• Mobility: Ability to move around the office environment to access computer hardware, networking equipment, and server rooms.
• Dexterity: Manual dexterity and visual acuity to operate computer equipment, troubleshoot issues, and perform tasks requiring precision.
• Sitting/Standing: Both prolonged sitting and occasional standing may be required for troubleshooting and attending to system issues.

About LS Technologies

At LS Technologies, a Tetra Tech Company, we’re enhancing our nation’s critical infrastructure by providing engineering, technical, and professional services to Federal Government agencies. The quality of our work, deep technical expertise, and genuine passion for public service sets us apart. As a growing organization we are expanding our benefits and communication with our employees, offering add-ons that speak to our growing employees’ needs. Join us in delivering high-quality solutions and shaping the future of safety and innovation for our government partners. In 2024 we joined Tetra Tech, enabling us to combine our expertise with the reach and resources of a prestigious global organization.

EEO Commitment

LS Technologies, a Tetra Tech Company, is proud to be an Equal Opportunity Employer. All qualified candidates will be considered without regard to race, color, religion, national origin, age, disability, sex, marital or familial status, status as a protected veteran, or any other characteristic protected by law. Tetra Tech is a VEVRAA federal contractor, and we request priority referral of veterans.

We invite applications from all interested parties.

Requesting an Accommodation

LS Technologies is committed to providing equal employment opportunities for persons with disabilities or religious observances, including reasonable accommodation when needed. If you are hired by LS Technologies and require accommodation to perform the essential functions of your role, you will be asked to participate in our reasonable accommodation process. Accommodations made to facilitate the recruiting process are not a guarantee of future or continued accommodations once hired.

If you would like to be considered for employment opportunities with LS Technologies and have accommodation needs for a disability or religious observance, please send us an email [e-mail] or speak with your recruiter.

Compensation (Pay Bands)

Salary at LST is determined by a wide array of factors, such as (but not limited to) education, certifications, knowledge, skills, competencies, and experience, location, and clearance level, as well as contract-specific affordability and organizational requirements and applicable employment laws. Please note that the salary information is a general guideline only.

The projected compensation range for this position is provided within the posting and is based on full-time, 40 hour/week status. Part-time staff receive compensation at an hourly rate. The estimated minimum and maximum displayed represents the broadest range for this position (inclusive of high geographic and high clearance requirements) and is just one component of LSTs total compensation package for employees. ** In compliance with local laws, LS Technologies presents this reasonable compensation range as a guideline for roles in California, Colorado, New York, or Washington D.C.”

Benefits offered to all employees who work 30 hours per week: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Annual Leave, and Holidays.

Life at Tetra Tech:

• The perks of working at Tetra Tech include:
• Comprehensive and market-competitive benefits.
• Merit-based financial rewards.
• Flexibility and company-wide commitment to work/life balance.
• Collaborative team atmosphere that values the contributions of all employees.
• Learning and development opportunities for ongoing professional growth.

About Tetra Tech:

Tetra Tech is the leader in water, environment, and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide. With 30,000 employees working together, Tetra Tech provides clear solutions to complex problems by Leading with Science® to address the entire water cycle, protect and restore the environment, design sustainable and resilient infrastructure, and support the clean energy transition.

Explore our open positions at https://www.tetratech.com/careers.

LinkedIn: TetraTechCareers; X (Twitter): @TetraTechJobs

Additional Information

• Organization: 230 LST