Senior Systems Administrator

teKnoluxion•Gaithersburg, MD

4d•$110,000 - $166,000•Onsite

About The Position

At Bcore, our strength comes from how we deliver impact to the mission. Whether it’s architecting critical IT solutions, producing actionable intelligence, or developing cutting edge technology, we succeed because of the expertise, collaboration, and agility of our teams. Our Mission Services division combines enterprise IT, cloud solutions, DevSecOps, systems engineering, software development, and operational support. Bcore accelerates decisive advantage for warfighters and intelligence professionals by fusing human insight, rapid-fire engineering, precision-measured outcomes, and relentless grit into mission-ready solutions. Do you want to join a team that is building tailored technical solutions to modernize our government’s mission and our client’s business? Do you have a desire to change how people work? Are you interested in helping to protect our nation’s cyber interests? Join our growing team as a Senior Systems Administrator, supporting the NGA customer mission. This is your opportunity to modernize enterprise infrastructure, automate operations, strengthen cybersecurity, and directly enable rapid software delivery for systems that make a real-world impact. If you're energized by innovation, collaboration, and solving some of the nation's most challenging technical problems, we'd love to have you on our team. As a Senior Systems Administrator, you will administer, secure, and optimize enterprise Windows and Linux environments supporting development, test, integration, and production systems. You'll play a critical role in ensuring highly available, resilient, and secure infrastructure while partnering with Agile teams to continuously improve system performance, reliability, and operational efficiency.

Requirements

Active TS clearance (with SCI Eligibility) and eligibility to obtain CI Poly
CompTIA Security+ certification or an equivalent DoD IAT Level II certification, Red Hat Certified System Administrator (RHCSA), and ITIL 4 Foundation
Requires Bachelor's degree in Computer Science, Engineering, Information Technology or related field
8-12 years of prior relevant experience or Master's with 6-10 years of prior relevant experience
8+ years of systems administration experience supporting enterprise environments
Strong experience administering: Windows Server
Strong experience administering: Red Hat Enterprise Linux (RHEL)
Strong experience administering: VMware vSphere
Strong experience administering: Active Directory
Strong experience administering: DNS/DHCP
Strong experience administering: Group Policy
Experience with scripting using PowerShell, Bash, or Python
Knowledge of storage technologies, backup solutions, and disaster recovery
Experience applying DISA STIGs and RMF security controls
Familiarity with configuration management and automation tools such as Ansible, Puppet, or Chef
Experience using Git and supporting CI/CD pipelines
Strong analytical, troubleshooting, and communication skills
Strong customer service orientation
Excellent written and verbal communication skills
Ability to prioritize multiple tasks in a dynamic Agile environment
Self-motivated with strong attention to detail
Collaborative mindset with cross-functional technical teams
Commitment to continuous process improvement and automation

Nice To Haves

Experience supporting cloud technologies such as AWS GovCloud, Azure Government, or C2S
Experience with Kubernetes and container platforms
Familiarity with Docker and OpenShift
Experience with Infrastructure as Code (Terraform, CloudFormation, or Ansible)
Knowledge of Elastic Stack, Splunk, Grafana, or Prometheus
Experience supporting DevSecOps environments
Understanding of Zero Trust architecture principles
Experience with SAN/NAS administration

Responsibilities

Administer and maintain Windows and Linux server environments.
Install, configure, patch, and upgrade operating systems and enterprise applications.
Monitor system health, performance, capacity, and availability.
Support Agile development teams by provisioning and maintaining development, test, staging, and production environments.
Implement infrastructure changes through established configuration management and change control processes.
Troubleshoot hardware, software, networking, and storage issues to minimize downtime.
Collaborate with DevSecOps engineers to automate system administration tasks using scripting and Infrastructure as Code (IaC) tools.
Maintain compliance with IC cybersecurity requirements, RMF controls, STIGs, and security policies.
Perform vulnerability remediation, security patching, and system hardening.
Support virtualization platforms such as VMware vSphere or Nutanix.
Manage Active Directory, Group Policy, DNS, DHCP, PKI, and identity management services.
Develop and maintain system documentation, standard operating procedures, and architecture diagrams.
Participate in Agile ceremonies including sprint planning, backlog refinement, standups, and retrospectives.
Provide Tier III operational support and participate in after-hours maintenance windows as required.