Systems Administrator
BigBear Inc
Residency All applicants must currently reside in the United States Overview BigBear.ai is hiring for a Systems Administrator to join our IT Operations team and help design, automate, and manage our modern enterprise infrastructure. This role is ideal for someone who enjoys solving complex technical problems, improving operational efficiency through automation, and delivering an exceptional end-user experience across Windows and macOS environments. The ideal candidate is a systems thinker with strong scripting skills, experience managing Microsoft cloud technologies, and a passion for continuously improving IT operations through automation and standardization. This is a fully remote position. Candidates located in the Washington, DC / Maryland / Virginia (DMV) area are preferred to allow for occasional onsite collaboration when needed. What you will do Engineer, deploy, and manage Windows and macOS endpoint environments. Develop automation solutions that reduce manual effort and improve operational efficiency. Create and maintain scripts using PowerShell and Python to automate provisioning, administration, reporting, and integrations. Manage Microsoft Intune policies, device compliance, application deployment, and endpoint security. Administer Microsoft 365 services including Entra ID, Exchange Online, Teams, SharePoint, and related cloud services. Maintain and optimize Remote Monitoring and Management (RMM) platforms to proactively manage endpoint health. Build and maintain documentation, operational runbooks, and standard operating procedures. Partner with Security, Infrastructure, and Help Desk teams to improve reliability, compliance, and user experience. Participate in infrastructure improvement projects and recommend new technologies and best practices. Troubleshoot complex endpoint, identity, and cloud platform issues. What you need to have 5+ years of experience as a Systems Engineer, Systems Administrator, or similar infrastructure role. Strong experience managing both Windows and macOS enterprise environments. Networking Experience: Managing Routing, Switching, VLANs, Firewalls. Advanced PowerShell scripting experience. Working knowledge of Python for automation and systems integration. Experience administering Microsoft Intune and Microsoft 365. Experience with endpoint lifecycle management including deployment, patching, compliance, and software distribution. Experience administering or supporting Remote Monitoring and Management (RMM) solutions. Strong understanding of Microsoft Entra ID and modern identity management. Experience documenting technical processes and operational procedures. Excellent troubleshooting and communication skills. Self-motivated with the ability to work independently in a remote-first environment. What we'd like you to have Experience administering Linux servers or Linux endpoints. Experience supporting U.S. Government or Government Contracting (GovCon) environments. Familiarity with compliance frameworks such as NIST 800-171, CMMC, or FedRAMP. Networking experience including routing, switching, VPNs, DNS, DHCP, and firewall concepts. Experience with ServiceNow or other IT Service Management platforms. Experience with infrastructure automation tools and APIs. Experience working in Azure or other cloud infrastructure platforms. Pay transparency Please note the targeted compensation range is provided as an estimate, and any actual compensation offer may vary depending on the needs of the company, or an applicant's skillset, competencies, experience, education, certifications, location, or other factors. The estimated range does not include the value of any benefits offered. About BigBear.ai BigBear.ai is a leading provider of AI-powered decision intelligence solutions for national security, supply chain management, and digital identity. Customers and partners rely on Bigbear.ai's predictive analytics capabilities in highly complex, distributed, mission-based operating environments. Headquartered in McLean, Virginia, BigBear.ai is a public company traded on the NYSE under the symbol BBAI. For more information, visit and follow BigBear.ai on LinkedIn: @BigBear.ai and X: @BigBearai. BigBear.ai is an Equal opportunity employer all protected groups, including protected veterans and individuals with disabilities. BigBear Inc
- ...Job Description Job Description TITLE: Systems Administrator (SA)LOCATION: McLean, VACLEARANCE REQUIRED: Active DoD TS/SCI with CI PolygraphEMPLOYMENT TYPE: Full-time, On-site POSITION SUMMARYModern Government Solutions (MGS) is seeking a Systems Administrator (SA...SuggestedFull timeFor contractors
$64.1k - $102.9k
...regarding any recruiting communications or Kapitus' recruiting process in general should email ****@*****.*** As System Administrator I at Kapitus, you will be responsible for helping our company scale through the effective use of Microsoft 365 services....SuggestedTemporary workWork experience placementRemote workFlexible hoursDay shift$75k - $85k
...mission-critical technology, engineering, and mission support services to federal government customers. We are seeking a Senior Systems Administrator to play a key role in a critical DOD program — powering the platform that securely collects, analyzes, reports, and...SuggestedTemporary workImmediate startRemote work- ...’s safety and security. Make an impact by using your expertise to protect our country from threats. Job Description Systems Administrator Maintains an organization's computer systems' workflows and is responsible for the upkeep, configuration and reliable operation...SuggestedWork at officeLocal areaRemote work
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Celestar, a B&A Company, is seeking a Database/Web System Administrator to support the Defense Advanced Research Projects Agency (DARPA) Program Security Services (PSS) task order. If interested and meet the qualifications, we encourage you to apply for this rewarding...SuggestedContract workLocal area$130k - $180k
Celestar Corporation, seeking a Database/Web System Administrator, supports the DARPA PSS program in Arlington, VA. Salary range $130,000-$180,000/year with compensation based on experience, certifications, security clearance, and funding. Active TS/SCI clearance required...- System AdministratorThis position is part of a proposal submission and is contingent upon contract award.Location: Arlington, VAClearance... ...system issuesMinimum Requirements:5+ years of system administration experienceBachelor's degree in IT or related fieldFamiliarity...Full timeContract work
- ...Job Description Job Description Job Title: System Administrator Department: Management Reports To: Head of Corporate Services Location: Vienna, Virginia FLSA Status: Exempt Employment Type: Full-time Experience Level: Mid-level (3–5 years) Position...Full time
$98.6k - $133.4k
...Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Active Directory Administration, Enterprise IT, Information Technology (IT) Systems Certifications: None Experience: 5 + years of related experience US Citizenship...Full timeTemporary workPart timeWork experience placementImmediate startRemote workWorldwideFlexible hours- ...solutions in: National Security Programs Professional, Administrative, and Management Support Mission and Warfighter Support... ...Type:Full Time Position Status: Contingent Position Title: System Administrator Location:Arlington, VA Security Clearance:...Full timeFor contractors
$99k - $206k
...provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet... ...infrastructure when it matters most. Cloud Systems Administrators will manage day-to-day operations, maintenance, and health monitoring...Full timeContract workLocal area- ...Systems Administrator (UNIX/Solaris) Spatial Front, Inc. (SFI), a two-time USA Today Top Workplaces awardee and Washington Top Workplaces honoree, is seeking a Systems Administrator (UNIX/Solaris) to support our growing team. The ideal candidate will support the administration...Full timeContract work
$55k - $75k
We are seeking a motivated Systems Administrator to support and maintain our enterprise IT environment. This role is ideal for someone with solid foundational experience in Microsoft services, endpoint management, and hardware administration who is ready to broaden their...Full timeTemporary workFlexible hours$100.2k - $203.4k
Accenture Federal Services seeks a RHEL System Administrator to monitor and maintain Cameo systems in a cloud environment while ensuring high availability, system integrity, and compliance with federal security standards. The role involves system administration, user support...$95.5k - $181.7k
Systems Administrator At RTX BBN Technologies' Rosslyn, VA office, the Business Infrastructure group is seeking a Systems Administrator. Our team handles all aspects of IT including, but not limited to: core network infrastructure, phone systems, lab setups, server installs...Temporary workWork experience placementWork at officeRemote workRelocation packageFlexible hours$104.24k - $130.3k
...telecommunications, life safety, automation and controls, audiovisual, and IT systems. Headquarters in Tysons, Virginia, M.C. Dean delivers... ...you\'ll do: In this role, you will serve as a senior systems administrator and technical lead for secure Operational Technology (OT) and...For subcontractorRemote workFlexible hoursNight shift$95k - $130k
...application due to a disability, contact this employer to ask for an accommodation or an alternative application process. Systems Administrator - Organizational Messaging Systems (OMS) Full Time Arlington, VA, US Salary Range: $95,000.00 To $130,000.00 Annually About...Full timeLocal areaImmediate startRemote workWorldwideMonday to Friday$100.2k - $203.4k
RHEL System Administrator At Accenture Federal Services, nothing matters more than helping the US federal government make the nation stronger and safer and life better for people. Our 13,000+ people are united in a shared purpose to pursue the limitless potential of technology...Live inWork at officeLocal area- Spatial Front, Inc. seeks a Kafka Administrator to sustain enterprise Kafka in a secure, on‑premises environment, focusing on PeopleSoft HCM integrations. The role requires strong Kafka administration, scripting, and a disciplined operational approach in a federal setting...
- Job Title What You'll Bring 5-10+ years of experience in server maintenance and administration. Expertise in Azure operations and maintenance. Strong knowledge of Windows Server (2008R2, 2016), SQL Server (2014/2019), IIS, ColdFusion, and Node.js. Experience working with...
- MITRE is seeking a Senior Systems Administrator to join a distributed team in McLean, VA. The role focuses on hands-on system administration, lifecycle activities, and security compliance to support Classified Infrastructure. Responsibilities include incident management...
$101.92k - $131.04k
Senior Systems Administrator Employment Type: Full Time, Senior-level Department: Legal/IT CGS is seeking a Senior Systems Administrator to join our team supporting a wide-ranging technical support initiative for a large Federal agency. CGS brings motivated, highly skilled...Full timeContract workFor contractorsWork at officeFlexible hours$62k - $141k
...and work. Innovate with intention Build mission-ready tech that protects the nation. Your combination of people skills and system administration knowledge makes you the team hero, solving one problem after another. What if you could use those skills to improve the...Full timeContract workPart timeWork at officeLocal areaRemote work$110k - $145k
Systems Administrator Boston, MA Please Note: We have TWO openings for a Systems Administrator that can be based in one of our many office locations: Boston, MA - Charlotte, NC - Atlanta, GA - Asheville, NC - New York City, NY - Westwood, NJ - McLean, VA Why Work At Modera...Work experience placementWork at officeLocal areaRemote workRelocation- Systems Administrator Location: Arlington, VA Chenega Military, Intelligence & Operations Support (MIOS) invites qualified professionals to join our team as a Systems Administrator. This role supports large‑scale government operations by leveraging cutting‑edge technology...
- Join to apply for the Senior Systems Administrator role at Tecolote Research Overview We are seeking a skilled and motivated Systems Administrator to join our IT team. The ideal candidate will be responsible for managing, maintaining, and optimizing our enterprise systems...Full timeTemporary workWork at office
- ...- Lead technical planning, testing, and execution of complex system upgrades, including operating systems, infrastructure platforms... ...Provide senior-level technical support and guidance to system administrators, serving as an escalation point for complex patching, upgrade,...Minimum wageContract workTemporary workWork experience placementRemote work
$130k - $170k
Overview Systems Planning and Analysis, Inc. (SPA) delivers high-impact, technical solutions to complex national security issues.... ...Force Assessments. SPA has a need for Systems & Infrastructure Administrators to operate, maintain, and improve the environments that host...Flexible hours$50k - $290k
...supports Civilian, Defense, and Intelligence Community customers across the country and around the globe. We are looking for a Systems Administrator to join our high-performing team on a dynamic, mission-focused program in Tysons Corner, VA. Responsibilities Provide...For contractors$75k - $113.79k
Job Title: Systems Administrator III Clearance Required: Secret Work Location: Onsite, San Antonio, TX Key Responsibilities: Analyze, validate, implement, maintain, and configure current services and tools (examples include Active Directory (AD), System Center Operations...Contract workWork experience placementFlexible hours
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