Senior Systems Administrator: Enterprise IT & Security
General Dynamics Information Technology
General Dynamics Information Technology seeks a Systems Administrator Senior to advance mission IT capabilities. You will monitor, manage, and restore critical systems across complex networks, ensuring high availability and security. The role involves patch management, DR planning, and collaboration with stakeholders to meet business needs. Candidates should have 3+ years of related experience and relevant certifications. #J-18808-Ljbffr General Dynamics Information Technology
- Kaimetrix is seeking a System Administrator - Level III to support enterprise IT systems in a secure, mission-critical environment at Fort Belvoir, Virginia. The ideal candidate will have at least 6 years of progressive experience and relevant certifications, ensuring high...Senior
- Tripoint Solutions is seeking an experienced Systems Administrator to provide advanced Tier III technical support for enterprise IT infrastructure in a federal space. You will... ...timely incident resolution while upholding security, stability, and performance across systems....Senior
- AV is seeking a Senior Linux Systems Administrator to design, deploy, and maintain enterprise Linux infrastructure across on‑prem and multi-cloud environments. You will... ...Canonical Landscape, enforce MFA, and drive security hardening and automation. You will implement...Senior
- ...Join to apply for the Senior Systems Administrator role at Tecolote Research Overview... ...Administrator to join our IT team. The ideal candidate... ...maintaining, and optimizing our enterprise systems and cloud... ...Design, implement, and maintain secure and scalable cloud infrastructure...SeniorFull timeTemporary workWork at office
- ...Services, LLC in Arlington, VA is seeking a seasoned Database Administrator to lead enterprise database environments supporting mission-critical... ...PostgreSQL, MySQL, MongoDB), manage backups and DR, ensure security and compliance, and collaborate with developers, network...Senior
- VTG Defense in McLean, VA is seeking a Systems Administrator to manage enterprise IT infrastructure, ensuring reliability, security, and performance of servers, networks, and applications. You will install, patch, monitor, and troubleshoot across Windows and Linux environments...Senior
- Empower AI, based in Arlington, Virginia, seeks a Senior Systems Administrator (Lead) to oversee the IT Support Team and ensure operational excellence. The role entails managing IT support, leading security implementations, and maintaining complex systems for military...Senior
- ...Citizenship required US Government Security Clearance required Assurance... ...ATC is seeking a highly experienced Senior RHEL Administrator to provide enterprise-level administration, security, and... ...optimize Red Hat Enterprise Linux systems across physical and virtual environments...Senior
- ...the United States is seeking a senior cybersecurity incident response leader to coordinate and drive enterprise IR activities. Responsibilities... ...executive reporting to strengthen security posture. Applicants should have a Master’s in IT/Cybersecurity (or equivalent), 1...Senior
- Galapagos Federal Systems LLC is seeking a skilled Systems Administrator to manage enterprise IT across DoD/IC environments, ensuring availability, security, and performance of Windows, UNIX/Linux, AD, and related infrastructure. You will support RMF lifecycle, implement...
$92.3k - $166.85k
Senior System AdministratorAlexandria, VALeidos is hiring a Senior System Administrator to support Red Hat systems operating within the Army Cloud Computing Enterprise Transformation (AC2SP) on both unclassified and... ...role in maintaining secure, reliable, and high performing...SeniorFull timeWork at officeRemote work- ...SHR Consulting Group, LLC is seeking Systems Administrators to operate and maintain the DoD Organizational Messaging enterprise—managing secure message traffic across DoD, U.S. Government agencies, Five Eyes partners, NATO, and U.S. installations worldwide. You will administer...SeniorWorldwide
$65k - $85k
...seeking a skilled and self-driven Systems Administrator with strong expertise in cloud services, Microsoft enterprise technologies, virtualization, and modern security platforms The ideal candidate... ...regulatory frameworks relevant to IT (e.g., CMMC, NIST 800-171 or C-SCRM...Senior$120k - $200k
...Senior IT Systems Administrator Scout Space is building a new way to see and operate in space: with a new paradigm of data empowering every satellite... ...and access issues Design, implement, and maintain IT security controls aligned with NIST, CMMC, and other applicable...SeniorPermanent employmentRemote workWork from homeRelocationFlexible hours$75k - $85k
...government customers. We are seeking a Senior Systems Administrator to play a key role in a critical... ...- powering the platform that securely collects, analyzes, reports, and exchanges... ...maintenance, monitoring, and optimization of enterprise IT infrastructure supporting the...SeniorTemporary workImmediate startRemote work- Systems Planning and Analysis, Inc. (SPA) is seeking Systems & Infrastructure Administrators to operate, maintain, and improve environments... ...remain available, secure, performant, and... ...Bachelor’s degree in IT or engineering, 4-8+ years in enterprise IT, the ability to troubleshoot...Senior
- Nationwide IT Services is seeking a Senior Application Administrator to lead and secure enterprise applications at Fort Belvoir, VA. The role involves installation, upgrades, deployments, integrations, and strict adherence to STIGs/SRGs across development, pre‑production...Senior
- TechFlow Inc. is seeking a Senior Systems Administrator to support a critical DoD program, administering and optimizing the enterprise IT infrastructure to ensure secure, available systems. Hybrid remote work requires in‑person meetings in the Northern VA/DC Metro area...SeniorRemote work
- Revolutional is seeking a System Administrator to install, configure, secure, and maintain mission-critical IT systems in a Washington, DC onsite environment. The role requires an active Top Secret clearance with SCI eligibility, a Bachelor's in IT/CS, 5 years of IT experience...SeniorShift work
- Kaimetrix is seeking a System Administrator - Level IV to lead IT infrastructure management in secure environments. This role requires at least 10 years of system administration experience and a bachelor's degree in IT or related fields. Candidates should have advanced...Senior
$130k - $150k
...Let’s Make It Real! The Senior Microsoft Systems Administrator must be able to meet the... ...professional experience Security Clearance: IBR is a... ...Architect and design enterprise‑grade Windows infrastructure... ...managing the Microsoft-based IT infrastructure for the National...SeniorFull timeTemporary workFor contractorsWork at officeLocal areaRemote workHome officeFlexible hours- A technology service provider is seeking a Master System Administrator in Washington, DC. The role requires 16+ years of experience in installing... ...environment. Candidates should have a Bachelor’s degree in IT or equivalent experience. The position supports critical emergency...Senior
- TechFlow, Inc. seeks a Senior Systems Administrator to maintain and optimize the enterprise IT infrastructure for a critical DOD program, ensuring security, stability, and high availability. You will collaborate with cybersecurity, engineers, and government stakeholders...Senior
- Booz Allen Hamilton seeks an experienced system administrator to lead enterprise-level IT infrastructure for a mission-critical customer. You will manage Windows-based systems, perform Tier I/II support, monitor performance, apply patches, and document configurations and...Senior
- West 4th Strategy is seeking an experienced System Administrator III for the Naval Dosimetry Center in Bethesda, MD. The role focuses on maintaining... ...infrastructure, resolving failures, and enforcing security baselines in a regulated environment. This is a full-time position...SeniorFull time
- ...solutions provider in Washington is seeking a Systems Administrator to support server environments and ensure high performance and security. The role requires overseeing... ...Science, have 7+ years of experience in enterprise server administration, and must possess Security+...SeniorRemote work
- ...innovative firm is seeking a skilled Senior Systems Administrator to enhance its IT team. This role involves managing... ...cloud infrastructure and enterprise systems, requiring deep technical... ...problems and implementing IT policies to secure organizational assets. With a commitment...SeniorWork at office
- Zones, LLC is seeking a Sr IT Administrator in Washington, DC for a 6-month contract to hire. You will lead IT infrastructure projects... ...SaaS apps, and collaborate with leadership to optimize system performance and security. The role requires 5+ years as a Systems Administrator,...SeniorPermanent employmentContract work
$99.3k - $158.69k
...Patch Management Specialist, Senior oversees enterprise patch management strategy... ...remediation activities with security policies, regulatory requirements... ...drive accountability with system owners. Required... ...Qualifications Bachelor's degree in IT, Computer Science, or a...SeniorContract workWork at officeRemote work$55k - $75k
...We are seeking a motivated Systems Administrator to support and maintain our enterprise IT environment. This role is ideal... ...skill set across virtualization, security, and cloud technologies. The right... ...practices Work with senior team members to escalate and resolve...
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Systems Administrator: Enterprise IT & Security. Be the first to apply!
- microsoft systems administrator Alexandria, VA
- remote systems administrator Alexandria, VA
- application system administrator Alexandria, VA
- IT administrator Alexandria, VA
- systems administrator Alexandria, VA
- computer systems administrator Alexandria, VA
- enterprise administrator Alexandria, VA
- system admin Alexandria, VA
- server administrator Alexandria, VA
- IT infrastructure administrator Alexandria, VA

