Jr. Linux Administrator

Company Overview

By Light Professional IT Services LLC readies warfighters and federal agencies with technology and systems engineered to connect, protect, and prepare individuals and teams for whatever comes next. Headquartered in McLean, VA, By Light supports defense, civilian, and commercial IT customers worldwide. 

Cole Engineering Services (CESI), a By Light company, is recognized as a premier provider of modeling and simulation (M&S) training solutions to the Federal Government and industry. Since 2004, CESI has been at the forefront of developing, maintaining, and integrating simulation-based training, serious gaming, technical services, training and other support in live, virtual, constructive, and gaming (LVCG) domains.  CESI also designs, builds and runs infrastructure, platforms, applications and processes that enable cyber training for the integrated multi-domain force. Our vision is to become a worldwide full spectrum LVCG and cyber training/analysis developer, integrator and services provider.

Position Overview

The candidate will provide Linux administration of a virtualized data center computing environment. The candidate will participate in the program value streams to provide management and support of all Linux-based system within the platforms and other related duties as assigned.

Works alongside other platform teams to provide management and support for all Red Hat based services on the platform; includes but is not limited to Red Hat IdM Red Hat SSO, and Red Hat Satellite. In addition to Red Hat products, candidate is expected to support troubleshooting and maintenance across other Linux-based services.

Required Experience/Qualifications

• Bachelor's degree in a technical discipline such as information technology, computer science, systems or software engineering from an accredited college or     university and Two (2) years' experience solving complex engineering and technical problems.
• Ability to obtain DoD IAT Level II (or greater) certification (i.e. CompTIA Security , ISC2 CISSP, or other equivalent certification).
• Basic understanding of IT fundamentals. Candidate is expected to have a general understanding of networking and the OSI model to assist in troubleshooting efforts. Basic understanding of the following terms and uses within an information system are required:
  • IP Address
  • MAC Address
  • VLAN
  • DNS
  • DHCP
• Competence with Linux technologies; Red Hat specific a plus but not required. Candidate must have a working knowledge of basic Linux fundamentals as it pertains to command line management of Linux-based systems; this includes (but is not limited to) the following:
  • Set or change hostname
  • Set or change IP
  • Install patches
  • Change permission of files
• Working with and troubleshooting SELinux strongly preferred; general understanding of SELinux as a capability and its use is required

Preferred Experience/Qualifications

• General understanding of automation fundamentals. This can be with automation technologies (i.e. Ansible, Terraform, etc.) or via basic scripting (i.e. Bash, Python, etc.).
• Basic understanding of shell scripting
• Basic understanding of one major scripting language (Bash, Python, Ruby, etc.)
• Basic understanding of one major automation technology (Ansible, Terraform, Chef, etc.)
• Basic understanding of LDAP; FreeIPA, 389-DS, or OpenLDAP preferred
• A strong desire to learn in a rapid paced environment

Special Requirements/Security Clearance

In accordance with the specifications of a government contract, eligibility for this position mandates U.S. Citizenship status and a secret security clearance with the ability to obtain TS/SCI security clearance. The precise security clearance requisites will be detailed in the Government's Task Order.

This job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee. The above is intended to describe the general contents of and requirements for the performance of this job.

Benefits Overview

CESI recognizes that our strength is our people. We support every employee as an individual to build strong teams across the enterprise.  Our benefit package includes:

• Medical, Dental & Vision Coverage
• Wellness Program
• 401(k) Matching
• Disability (Short Term & Long Term)
• Employee Assistance Program
• Life Insurance
• Education & Training
• Generous Leave Policy (11 Federal Holidays, PTO, Military Leave, Bereavement and Jury Duty)

Cole Engineering Services, Inc. is an equal opportunity employer. We consider qualified applicants without regard to race, color, creed, religion, national origin, sex, sexual orientation, gender identity and expression, political affiliation, age, marital status, disability, genetic information, veteran status, membership in an employee organization, or any other basis prohibited by federal, state, or local laws.