Senior System Administrator
GIGATEC Engineering
NOTE - Our positions require a Top Secret clearance, as well as the favorable completion of a polygraph. Applicants must be authorized to work in the U.S. We are unable to sponsor an employment Visa. What You’ll Be Doing (We don't love the bullet points, but we love the work!) As the System Administrator, you'll get to be responsible for providing network management and systems administration support to maintain the Agency’s High-Performance Computing (HPC) infrastructure and HPC development environment. The Systems Administrator shall require SYS1 access and must have the Security+ certification. Requirements Perks and Benefits 100% Paid Healthcare 10% 401k in every paycheck 100% Fully Vested!!! Fifteen (15) years' experience Bachelors in Technical discipline,or an additional 5 years' experience Required Skills Experience using the Linux CLI and Linux Tools Experience developing scripts using Bash/Python Experience performing System Administration including installation, configuration, and support of COTS/GOTS/FOSS software in a large-scale Linux cluster environment Experience with Network Appliance clustered servers and applicable software with direct attached FC San storage Experience using Red Hat Satellite to automate the deployment, provisioning, and patching of REL Linux systems across physical, virtual, and cloud environments Experience with hands-on troubleshooting, customer interfacing, issue resolution, discrepancy tracking, and report generation Familiar with software frameworks used for searching, monitoring, and analyzing big data such as Splunk and Elastic Stack Experience with Linux configuration regarding Storage, Networking, Load Balancing, Memory Management, VMs, Firewalls, and System Monitoring Experience with corporate STE/STN security compliance policies, procedures, and tools Experience with corporate SSP accreditation processes Experience with IaC (Infrastructure as Code) principles and automation tools such as Ansible and SaltStack Experience configuring and sustaining VMware ESXi/Virtualization environments Desired Skills Experience with the Atlassian Suite of Tools such as Jira and Confluence Experience using system monitoring tools such as HPE One View and Nagios Experience with containerization technologies such as Docker Experience with sanitization of hardware, firmware, and / or software removed from computing environment in accordance with USG policies and procedures Experience with NetBackup and/or tape backup systems and archiving Experience with ePolicy Orchestrator and McAfee #J-18808-Ljbffr GIGATEC Engineering
- ...person mixed Contractor/Civilian SA team supporting 3rd party systems. • All supported systems are Linux hard boxes or VM's. •... ...and home directories. Required Skills: • LINUX Administration • Solid experience with STE/STN, DISA STIG compliance work...SeniorFor contractors
$168k - $250k
...information theft and augment protections for our customers systems. If you are looking to join a company that provides... ...consider joining our team! Peterson is seeking a talented Senior Systems Administrator . Provides day to day systems administration and support...Senior$96.2k - $192.3k
Accenture Federal Services in Annapolis Junction, MD is looking for an experienced Systems Administrator. The ideal candidate will provide support for IT systems, manage infrastructure, and troubleshoot issues. A minimum of ten years of experience in similar roles as well...Senior- CTI MD in Maryland seeks an experienced Systems Administrator to support federal contract requirements. You will maintain Windows Server and Active Directory, manage virtualization, and work with SALT, Ansible, Splunk, Puppet, and Nessus in a secure environment. The position...SeniorContract work
- Constellation Technologies, Inc. is seeking a seasoned Systems Administrator in Maryland to support federal contract requirements. You will manage Windows Server 2019, Active Directory, virtualization and security best practices while collaborating with developers, testers...SeniorContract work
- Belay Technologies, Inc. is seeking a System Administrator to join our intel team in Maryland. The role provides system administration support for a large, complex, distributed network, with air-gapped environments and multiple domains. The candidate will work in a fast...Senior
- Columbia Technology Partners is seeking System Administrators to support the implementation, maintenance, troubleshooting, and optimization of mission-critical IT systems and infrastructure. The ideal candidate will provide operational support across servers, storage, networks...Senior
- Prodigy One, LLC. is seeking a System Administrator to support a large, complex network environment with distributed systems. The role involves installing applications, maintaining server configurations, and ensuring security posture across air‑gapped environments. Strong...Senior
- Metrea in the United States is seeking a Classified Systems Administrator to secure and maintain air-gapped IT infrastructure used by the IC and DoD. You will lead a mixed Linux/Windows environment with a strong ownership mentality. Responsibilities cover security hardening...Senior
- Innovative Systems & Solutions in Annapolis Junction, MD is seeking a Senior System Administrator to support DoD IT infrastructure. The role requires TS/SCI clearance with polygraph and 10+ years of SA experience, managing UNIX and Windows environments. You will provide...Senior
$170k - $175k
A leading technology consulting firm is seeking a Senior System Administrator with an active TS/SCI clearance and polygraph. The role involves implementing and maintaining IT systems, providing Tier 1 and Tier 2 support, and managing daily operations across various environments...Senior- J&T in Annapolis Junction, MD seeks a Mid/Sr System Administrator to support a large distributed network. You will deploy, patch, and optimize air-gapped server and desktop environments, drive security compliance, and troubleshoot complex hardware/software issues to maximize...Senior
- General Dynamics Information Technology is seeking a Systems Specialist to support, maintain, and improve IT infrastructure. You will focus on system administration, troubleshooting, and user support to keep servers, apps, and security measures performing at peak levels...Senior
- Innovative Systems & Solutions in Annapolis Junction, MD, is seeking a Senior System Administrator to support IT systems across client/server/storage/network environments for DoD and Federal customers. The role includes handling Tier 1/2 support, system maintenance, and...Senior
- General Dynamics Information Technology (GDIT) is seeking an Active Directory Systems Administrator to manage enterprise virtualization and secure compute environments onsite in Maryland. The role focuses on Windows/Linux server administration, vCenter operations, patching...Senior
- Cornerstone Defense is seeking a Senior System Administrator to support secure enclave development networks in Annapolis Junction, MD. The role focuses on maintaining operability, implementing SOPs, and enforcing security baselines across Windows and Linux servers with...Senior
- J&T Business Consulting seeks a Mid/Sr System Administrator to support a large, distributed network in Annapolis, MD. You will manage Windows and Linux environments across air-gapped enclaves, deploying patches, ensuring security, and maintaining uptime while coordinating...Senior
- BCT LLC is seeking a System Administrator III to support a large-scale Linux environment. The role requires an active TS/SCI with POLY and entails installation, operation, monitoring, and performance optimization of compute, network, memory, and storage components. Responsibilities...Senior
- Power3 is looking for a System Administrator III in Annapolis Junction, MD. The candidate will provide support for implementation, troubleshooting, and maintenance of IT systems while managing system infrastructure. Responsibilities include Tier 1 and Tier 2 problem resolution...Senior
- Innovative Systems & Solutions (ISSI) is seeking a Senior System Administrator (TS/SCI with Polygraph) in Annapolis Junction, Maryland. The role focuses on implementing, troubleshooting, and maintaining IT systems across client, server, storage, and network environments...Senior
- Erias Ventures, LLC seeks engineers to support IT systems, troubleshoot, and maintain infrastructure across UNIX/Windows servers and storage environments. The role emphasizes secure, scalable IT operations and proactive problem-solving in a growth-oriented company. The...Senior
- SITEC is seeking a Senior Systems Administrator to support lifecycle sustainment activities for commercial and custom-developed education, learning, and training applications. This role will join an existing technical team responsible for maintaining secure, reliable,...Senior
$115k - $175k
...of a small company with the impact of a big mission. Riverstone is seeking a motivated, career, and customer-oriented Senior Systems Administrator to join our team at Annapolis Junction, Maryland . This is an onsite position. Primary Responsibilities Provides support...SeniorHourly payContract workWork experience placement- Innovative Systems & Solutions | Full time - Onsite Senior System Administrator - FFPP-8802 Annapolis Junction, United States | Posted on 03/17/2026 Innovative Systems & Solutions (ISS) works with a wide spectrum of talent to establish an atmosphere that stimulates creativity...SeniorFull timeTemporary workLocal areaImmediate start
$170k - $250k
Job Description The System Administrator III is a senior technical contributor responsible for designing, implementing, securing, and maintaining the organization’s core IT infrastructure. This role provides Tier 3 support for complex incidents, leads infrastructure projects...SeniorPermanent employmentContract workWork experience placementLocal area$128k - $160k
Responsibilities & Qualifications RESPONSIBILITIES The Senior Systems Administrator is expected to be able to accomplish the following: Monitors and manages system resources, including CPU usage, disk usage, and response times to maintain operating efficiency. Performs...SeniorFull timeContract workTemporary workLocal areaShift work$235k - $270k
...facing our customers. Description Provides support for implementation, troubleshooting and maintenance of Information Technology (IT) systems. Manages IT system infrastructure and any processes related to these systems. Provides support to IT systems including day-to-day...SeniorHourly payTemporary workImmediate startFlexible hours$103.8k - $218.1k
## Senior System AdministratorHanover, MD, USApply NowFind out how well you match with this jobJob ID328668Job Title: Senior System AdministratorJob... ...used across the IC.**Responsibilities:**As a System Administrator, you will:* Build, configure, and deploy Docker containers...SeniorContract workFor contractorsWork experience placementFlexible hours$235k - $270k
Annapolis Junction, MD Description Provides support for implementation, troubleshooting, and maintenance of Information Technology (IT) systems. Manages IT system infrastructure and related processes. Provides support to IT systems including day‑to‑day operations, monitoring...SeniorHourly payTemporary workImmediate startFlexible hours$190k - $240k
Overview Senior System Administrator to join one of our Prime Contracts supporting the Government's Corporate Management Services (CMS) organization. In this role, you will help design, modernize, secure, and sustain the enterprise applications and platforms that keep the...SeniorFlexible hours
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