Senior Linux/Unix Systems Administrator

Peraton; San Diego (CA); Hybrid; USD 104,000 - 166,000; Full time

Benefits offered by this job

Medical, Dental, Vision

Life Insurance

HSA & Disability

401(k) with company match

PTO and holidays

Job summary

Peraton seeks a Senior Systems Administrator in the San Diego area for a hybrid 50% remote/onsite role supporting US Navy modernization efforts.

You will automate infrastructure, maintain STIG/ACAS compliance, and manage Linux/Windows systems, virtualization, and cloud workloads with Kubernetes, Docker, and IaC tools.

Qualifications

• BS or MS in STEM with related experience; PhD counts for 0 years but acceptable.
• DoD cybersecurity/IA frameworks and STIG/ACAS knowledge required.
• Active DoD Secret clearance and US citizenship required.

Responsibilities

• Maintain system patches and STIG compliance for Linux/Windows.
• Scan and remediate vulnerabilities using ACAS.
• Manage Linux/Windows workstations and servers in virtualized/cloud envs.
• Administer AWS EC2, monitor and improve cloud infrastructure.
• Deploy and manage containerized apps with Kubernetes and Docker.
• Use Helm and IaC tools for microservice architectures.
• Collaborate with developers and ops to ensure production reliability.
• Provide guidance on complex issues for timely resolution.

Skills

Linux

Windows Server

VMware

Kubernetes

Docker

AWS

Azure

Security STIG

ACAS

DevOps

Automation (Python, PowerShell)

Education

BS in STEM (or equivalent)

MS in STEM (or equivalent)

PhD (0 years experience)

Tools

VMware

VirtualBox

Hyper-V

EC2 / AWS

OpenShift / Rancher

Ansible

Terraform / CloudFormation

GitLab / Jenkins

Bash / Python / PowerShell

Job description

About Peraton

Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees solve the most daunting challenges that our customers face. Visit peraton.com to learn how we’re keeping people around the world safe and secure.

About The Role

Peraton is seeking an enthusiastic and talented Senior Systems Administrator to build on ongoing modernization efforts for the US Navy with enabling microservices to be rapidly built, tested, fielded, and integrated to container orchestration platforms through heavy use of automation tools and security processes. This hybrid support role (50% remote, 50% onsite at a government facility) in the San Diego area is for folks who like being close to the work-maintaining security compliance, automating infrastructure, fixing what slows teams down, and adapting when a program needs something different.

We work in small-to-mid size, diverse teams with clear ownership of tasking. Engineers are trusted in solving problems and aren’t waiting for permission to execute.

U.S. Navy warfighters need your help to rapidly deliver cutting edge software solutions to the fleet for planning and executing missions for carrier strike groups conducting operations around the world. Mission planners need to collaborate in order plan for anti-surface warfare, anti-submarine warfare, ballistic missile defense, autonomous drone swarm information gain, and a wide range of other mission areas.

What you’ll do:

The Systems Administrator will be responsible for the following but not limited to:

• System Administration & Security Compliance

• Maintain system patches and operating system updates in accordance with Security Technical Implementation Guide (STIG) compliance.

• Scan systems using ACAS and collaborate with the team to remediate vulnerabilities.

• Enterprise IT & Cloud Management

• Administer, monitor, troubleshoot, and maintain Linux and Windows-based workstations, enterprise IT servers, and virtualized environments (VMware, VirtualBox, Hyper-V).

• Oversee the configuration, performance, and reliability of cloud-hosted EC2 implementing improvements to AWS and cloud infrastructures.

• Containerization & Orchestration

• Deploy and manage containerized applications using Kubernetes and other orchestration tools.

• Utilize containers (e.g., Docker) and orchestration configurations (e.g., Helm) to support microservice architectures.

• Collaboration & Problem Resolution

• Work closely with application developers, operations teams, and subject matter experts to support production applications and mission‑critical software systems.

• Provide guidance, assistance, and coordination on complex issues to ensure timely resolution and seamless integration of system components.

• Support new AA installs and troubleshoot issues with existing AA instances at secure labs, aboard ships, and other customer sites.

Qualifications

What you will need:

• Education & Certification:

• BS in STEM (or equivalent) with 5 years of experience, MS in STEM (or equivalent) with 3 years of experience, or 0 years with PhD.

• IAT Level II certified (e.g., CompTIA Security+).

• Citizenship & Clearance:

• Candidate must be a US Citizen.

• Must live in the San Diego metro area.

• Possess an active/current DoD Secret clearance.

• Systems Administration Experience:

• Hands‑on experience with Linux operating systems (e.g., RHEL, CentOS, Ubuntu) and Windows Server environments (e.g., 2019, 2016).

• Proven experience with virtualization (VMware, VirtualBox, Hyper-V) and cloud computing infrastructures (e.g., Amazon AWS, Microsoft Azure).

• Experience in maintaining Information Assurance Compliance (STIGs, ACAS, ENS/HBSS) and performing server administration tasks (user/group management, security permissions, group policies).

• DevOps & Automation Experience:

• Demonstrated DevOps experience involving:

• Containerization (e.g., Docker, Kubernetes, OpenShift, Rancher)

• Container orchestration tools (e.g., Kubernetes, OpenShift, Helm)

• Infrastructure-as-Code (e.g., Ansible, Vagrant, Terraform, CloudFormation)

• CI/CD automation tools (e.g., GitLab, Jenkins, AWS Code Build, Azure Pipelines)

• Proficiency in automation and scripting (e.g., Bash, Python, PowerShell) and working in headless RHEL environments.

• Familiarity with cybersecurity practices (e.g. HBSS) as applied to DevSecOps processes.

Desired Qualifications

• Experience with DoD accreditation processes (A&A, RMF, ATO) and identity management administration (Active Directory, AWS IAM, OpenAM).
• Knowledge of cloud infrastructure management tools (e.g., AWS Systems Manager, Azure Monitor).
• Familiarity with cybersecurity tools (e.g., OpenSCAP, JFrog Xray, Coverity).
• Proficiency with the Atlassian suite (JIRA, Confluence, Bitbucket) and test automation frameworks (e.g., Selenium, Cypress).
• Experience configuring OIDC and OAuth applications is advantageous.

Details

Target Salary Range: $104,000 – $166,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.

Benefits Statement: Peraton offers eligible employees a variety of benefits including medical, dental, vision, life, health savings account, short/long term disability, EAP, parental leave, 401(k), paid time off (PTO) for vacation, and company paid holidays. A full listing of available benefits can be viewed at https://www.careers.peraton.com/benefits.

EEO:

Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.