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Job Details

Linux Infrastructure Engineer


Applications Engineer


Chantilly, Virginia, United States


The Digital Modernization Sector at Leidos is seeking a Linux Infrastructure Engineer to support global enterprise networks. The Linux Infrastructure Engineer will solutions for modernizing the network while supporting service delivery an operational enterprise.

The job duties of the Linux Infrastructure Engineer are as follows:

  • Engineer and support the rapidly evolving Red Hat Enterprise Linux (RHEL) common service requirements for mission critical network management systems and applications

  • Patching and maintaining server builds

  • Coordinating and managing patching repositories in offline environments to ensure timely vulnerability patching

  • Building and deploying automated server and workstation builds across an enterprise infrastructure with environments that are logically separated

  • Troubleshooting and resolving complex hardware/software issues, restoring the environment to an operational state with minimal downtime, performing root cause analysis, and providing a forward leaning mitigation strategy

  • Researching emerging technologies to determine impact on application/system integration and execution

  • Collaborating with developers/engineers across disciplines to define system requirements and then designing a solution that meets the current requirements and is scalable to meet future enterprise requirements

  • Continuous improvement and process optimization as well as soliciting feedback from operations to simplify and enhance processes they use

  • Common security requirement implementation and scanning automation tools with ability to evaluate and properly configure security compliance requirements​.

  • Compliance with Department of Defense (DoD) 8570 Information Assurance Technical (IAT) Level 2

  • Understanding of all phases of the software and system development lifecycle and the ability to comprehend user business needs and concerns and integrate that understanding with technical skills.

  • Strong Unix/Linux system knowledge and administrator experience providing RHEL 7.x through 9.x platform and administrative support as well as operating system management and troubleshooting.

  • Scripting and command line experience in automating routine tasks

  • Design and administration experience using Red Hat products such as Satellite, Ansible and containerization.

  • Experience building and deploying automated server and workstation builds across an enterprise infrastructure with environments that are logically separated

  • Experience with proactive monitoring concepts, including experience configuring and deploying network and systems monitoring (i.e., SNMP, Splunk, Nessus, etc.)

  • Enterprise VM-based computing and competencies of systems including Fault tolerance, High availability, Scalability and Capacity planning, Data center organization, and Backup & Recovery

  • Familiarity with Encryption, IDS/IPS, Firewalls, Anti-Virus, VPNs, SSL

  • Possess a degree in Computer Science or a related technical field

  • A highly motivated candidate must be able to work independently and with local and geographically diverse team members using effective time management skills to meet deliverable timelines

  • The position is on site within an AT&T facility; the position does not require travel; however, the candidate is expected to be in the office five days per week during business hours

Desired Qualifications:

  • Tooling and automation development experience

  • Extended knowledge of API design (JSON, REST, etc.)

  • Solid understanding of Layer 1-4 fundamental protocols

  • Knowledge of standard networking monitoring technologies (SNMP, *Flow, etc.)

  • Knowledge of network device configuration and management

  • Experience in configuration development on Management Software (Ansible, Salt, Puppet, Chef, etc.) a plus

  • Knowledge of Unit Test framework a plus

  • Knowledge of Agile & Scrum Methodologies

  • Excellent verbal and written communication skills regarding developing project briefings, updating system designs, rack elevations, wiring diagrams, and system outage after action reports

  • Displays understanding of open-source frameworks, with experience deploying various open-source packages and/or application stacks into sponsor's production landscape

  • Establishes ability to deploy and maintain Linux baseline for physical and virtual platforms

  • Establishes ability to develop and maintain capacity metrics

  • Interprets and implements new concepts, technologies, and products quickly

  • Collaborator with strong emotional intelligence; otherwise, a strong self-starter who can work independently and manage multiple task assignments

  • Illustrates experience performing trend analysis on overall system health, performance, and capacity management regarding utilization and growth

Basic Qualifications

  • TS SCI CI Poly

  • The candidate must have 16 years of experience that can be a combination of work history and education. This equates to a doctorate and 8 years, a master’s and 10 years, a bachelor’s and 12 years, an associates and 14 years or a HS diploma and 16 years. Required qualifications include:

Original Posting Date:


While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $87,100.00 - $157,450.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.