Systems Administrator/Engineer

Leidos•Fort Meade, MD

12d•$87,100 - $157,450•Onsite

About The Position

Leidos is seeking a Systems Administrator to join their Intelligence Sector's Cyber & Analytics Business Area (CABA). This role supports a high-priority foreign engagement mission, providing advanced technical, engineering, and system administration expertise within a secure, high-trust environment. The program focuses on architecting, integrating, modernizing, and optimizing systems to drive operational outcomes. The Systems Administrator will be responsible for hands-on administration, maintenance, and troubleshooting of mission-critical IT systems, including Linux and Windows infrastructure, core enclave services, and resolving issues from the operating system to the application layer. The ideal candidate will possess strong Linux administration skills, a good understanding of networking, virtualization, storage, and security, and the ability to support complex operational environments. This position requires a proactive administrator capable of independent problem-solving, maintaining system compliance, and ensuring infrastructure availability and performance.

Requirements

Seven (7) years of experience as a System Administrator supporting programs and contracts of similar scope, type, and complexity.
Bachelor’s degree in a technical discipline from an accredited college or university.
Five (5) additional years of System Administration experience may be substituted for the bachelor’s degree.

Nice To Haves

Experience administering or supporting AWS cloud environments.
Experience with virtualization platforms such as KVM, Proxmox, VMware, or similar technologies.
Experience with enterprise identity and authentication technologies such as FreeIPA, Centrify, LDAP, and Active Directory.
Knowledge of PKI, TLS, certificates, encryption, and other cryptographic technologies.
Experience with container technologies such as Docker, Podman, Kubernetes, or comparable platforms.
Familiarity with automation and configuration management tools such as Ansible, Bash, Python, or PowerShell.
Strong understanding of TCP/IP networking, DNS, routing, firewalls, system hardening, and secure network architecture.
Ability to independently troubleshoot complex infrastructure issues, identify root causes, and implement sustainable technical solutions.

Responsibilities

Administer, maintain, and troubleshoot Linux and Windows systems, diagnosing and resolving technical issues ranging from the operating system through the application layer.
Install, configure, patch, upgrade, secure, and maintain Linux servers, including RHEL, Rocky Linux, CentOS, or comparable enterprise Linux distributions.
Configure and maintain core enclave infrastructure services, including DHCP, DNS, domain services, identity management, authentication, and related network services.
Deploy and support virtualized and/or containerized environments while managing supporting infrastructure, including compute, storage, networking, and system resources.
Support storage platforms, network connectivity, system interfaces, and associated infrastructure; troubleshoot performance, availability, and connectivity issues across complex environments.
Maintain systems in accordance with applicable System Security Plans (SSPs) and secure administration requirements, including Secure the Enterprise (STE)/Secure the Network (STN) activities.
Configure, monitor, and maintain security tools required to support DoD networks and cybersecurity requirements.
Provide day-to-day administration and technical support within classified operational environments, maintaining secure and reliable mixed Linux/Windows environments while ensuring systems remain operational, compliant, and mission ready.