By Light HQ

Systems Administrator

Job Locations US-FL-Orlando
Job ID
2025-10444
# of Openings
1
Job Function
Systems Support
Minimum Clearance
Tier 3 - Secret/ADP II

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, and2052 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

CESI is seeking a motivated technical candidate to lead the management of a cutting-edge virtual private cloud environment in support of the US Department of Defense. The candidate will provide critical management of user credentials, ensure software development teams have appropriate system resources, perform patching, manage system backups, establish complex infrastructure architectures, and support critical DevSecOps functions, such as the install of cybersecurity controls and other related technical leadership duties.

Responsibilities

  • Efficient and effective written and verbal communication skills to adjudicate requirements and system priorities by internal and external teams.
  • The candidate will ensure that authorized users have system accounts and the ability to access the appropriate system resources, specifically utilizing Red Hat IdM and Keycloack SSO products.
  • Manage a virtualization environment based on VMWare ESXI, vSphere and vCenter.
  • Manage an operating system and core application environment based on Kubernetes.
  • Provides help desk support to internal and external users.
  • Candidate must have an ability to rapidly triage user issues and resolve issues directly or when necessary, seek the appropriate engineering support to come to a resolution. 

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.

  • Minimum 10+ years applicable systems administrator, IT, or DevOps experience solving complex technical challenges.

  • IAT Level II or greater. Security+, CISSP or other equivalent certification.

  • Demonstrated experience with the administration of software systems within virtual machine and container-based cloud infrastructure. Competence with Virtual Machines, containers, and Red Hat Linux technologies.
  • Environment is primarily built with Linux, VMware, Kubernetes and Red Hat suite of enterprise products.
    Familiarity with computing hardware infrastructure tasks, such as iDRAC patches, troubleshooting servers, UPS maintenance, etc.
  • Basic familiarity with managing physical networking hardware and understanding network protocols (e.g. login and configuration of network switches).
  • Experience managing and troubleshooting networked storage systems.
  • Experience with private and hybrid cloud design/operation/monitoring/deployment:
    • VMware vCenter and ESXi, generally maintained at the most current version.
  • Analyzes real world problems and implements solutions according to corporate guidelines and procedures, and industry best practices. 
  • Provides professional-level IT, virtual environment, and network support functions.
  • Must be a self-starter in a fast-paced environment and able to work with/manage a range of engineers holding a diverse set of skills at differing levels of experience.
  • Be sensitive and flexible to the needs and requirements of the customer.
  • Ability to function effectively within a team environment.

Preferred Experience/Qualifications

  • Expertise with offensive and/or defensive cyber training.
  • Configuration Management, version control, and backup various scripts and work products created to execute and maintain the environment.
  • Ability to prioritize multiple tasks, projects, and demands.
  • Interact with vendors/users/customers and developers to understand needs and operational requirements changes that will impact development and testing activities, examine any relevant change implementation, then report the changes to developers and testers welcoming feedback for future improvements.
  • Ability to solve technical problems involving a variety of integrated software and hardware platforms.

Special Requirements/Security Clearance

Please note that pursuant to a government contract, this specific position requires U. S. Citizenship status and a SECRET security clearance.

 

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)

CESI is committed to principles of inclusion and equal employment opportunity.  We foster a non-discriminatory, professional work environment for all our teams.  We do not discriminate based on race, color, religion, sex, pregnancy, sexual orientation, gender identity, genetic information, national origin, age, marital status, disability, or veteran status.

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