Cyber Systems Administrator
Serco
Position Description & Qualifications
Serco seeks a Cyber Systems Administrator for its Combat Air Force Distributed Mission Operations (CAF DMO) 3.0 program in Hampton, VA. The CAF DMO 3.0 program, via its Distributed Mission Operations Network (DMON), provides world-class integration training in large force and small team formats to combat units around the globe against cutting-edge threats in a boundless virtual battlespace. The U.S. Air Force can only utilize its full capability against modern threats in a virtual environment. Be a part of that environment and continue to make the USAF the best air force in the world.
In this role, you will:
Monitoring and performing health checks of critical network infrastructure and systems
Performing daily operations support, infrastructure maintenance, system patching, and ticket resolution
Conducting incident response, troubleshooting, communication, and reporting activities
Collaborating with Integrated Product Teams (IPTs) to review, prioritize, and plan engineering support activities
Providing ancillary support to security teams conducting system security assessments to validate compliance
Working with program leadership to implement process improvements and system optimizations
To be successful in this role, you will have:
An active DoD Secret Clearance with ability to obtain TS/SCI and SAP/SAR.
Bachelor's Degree in STEM (Computer Science, Modeling & Simulation, Physics, Math, Systems Engineering, or Aerospace Engineering) and 5 years relevent experience
OR a Master's degree in STEM (Computer Science, Modeling & Simulation, Physics, Math, Systems Engineering, or Aerospace Engineering) and 3 years relevent experience
An active/current DoD 8140 IAT Level II or higher (i.e. Security+, CySA+, CISSP).
Demonstrated experience with Microsoft Endpoint Configuration Manager (MECM) to include application packaging, deployment, patch management, task sequencing, OS imaging, and compliance baselines as well as troubleshooting client-server communication, distribution point issues, and software update deployments.
Demonstrated experience with Windows Server Update Services (WSUS) to include configuration and maintenance of WSUS infrastructure, synchronization, approval workflows, troubleshooting updates and integration with MECM for enterprise patch management.
Demonstrated experience with VMware virtualization to include administration of VMware vSphere/ESXi environments, VM provisioning, resource allocation, snapshots, performance monitoring and understanding of HA/DRS clusters and virtual networking.
Demonstrated experience with Windows Server & Desktop Operating Systems to include administration of Windows Server environments (2016/2019/2022/2025), strong knowledge of Windows 11 configuration, performance tuning and troubleshooting as well as experience with Active Directory, DNS, GPOs, and file and print services.
Strong scripting skills (PowerShell, Bash).
Experience with monitoring tools and log analysis.
Ability to work in fast-paced enterprise environments and support large-scale infrastructure.
Ability to troubleshoot and solve problems (e.g., breaking down problems, collaborating about problems and solutions, designing solutions, etc.).
Ability to document concepts, approaches, and rationale in an understandable manner (especially as part of problem solving).
Ability to travel up to 10% of the time.
Additional desired experience and skills:
Certificate Services / PKI Implementation to include deployment and management of Active Directory Certificate Services (ADCS), certificate enrollment, auto-enrollment, templates, and lifecycle management, understanding of SSL/TLS, CRLs, OCSP, and certificate-based authentication.
Ansible to include developing, maintaining, and optimizing Ansible playbooks and roles for configuration management and automated deployments, troubleshooting automation failures and improving CI/CD workflow and implementing infrastructure-as-code best practices across Linux and Windows environments.
Experience with Microsoft Exchange to include the administration of exchange on-prem or hybrid environments, managing mail flow, transport rules, mailbox provisioning, troubleshooting, support migrations, patching, and high-availability configurations.
Company Overview
Serco Inc. (Serco) is the Americas division of Serco Group, plc. In North America, Serco's 9,000+ employees strive to make an impact every day across 100+ sites in the areas of Defense, Citizen Services, and Transportation. We help our clients deliver vital services more efficiently while increasing the satisfaction of their end customers. Serco serves every branch of the U.S. military, numerous U.S. Federal civilian agencies, the Intelligence Community, the Canadian government, state, provincial and local governments, and commercial clients. While your place may look a little different depending on your role, we know you will find yours here. Wherever you work and whatever you do, we invite you to discover your place in our world. Serco is a place you can count on and where you can make an impact because every contribution matters.
To review Serco benefits please visit: . If you require an accommodation with the application process please email: View email address on click.appcast.io or call the HR Service Desk at View phone number on click.appcast.io, option 1. Please note, due to EEOC/OFCCP compliance, Serco is unable to accept resumes by email.
Candidates may be asked to present proof of identify during the selection process. If requested, this will require presentation of a government-issued I.D. (with photo) with name and address that match the information entered on the application. Serco will not take possession of or retain/store the information provided as proof of identity. For more information on how Serco uses your information, please see our Applicant Privacy Policy and Notice.
Serco does not accept unsolicited resumes through or from search firms or staffing agencies without being a contracted approved vendor. All unsolicited resumes will be considered the property of Serco and will not be obligated to pay a placement or contract fee. If you are interested in becoming an approved vendor at Serco, please email View email address on click.appcast.io .
Serco is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, and other legally protected characteristics.
Pay Transparency
Our Total Rewards package includes competitive pay, performance-based incentives, and benefits that promote well-being and work-life balance-so you can thrive both professionally and personally. Eligible employees also gain access to a wide range of benefits from comprehensive health coverage and health savings accounts to retirement plans, life and disability insurance, and time-off programs that support work-life balance. Program availability may vary based on factors such as contract type, location, hire date, and applicable collective bargaining agreements.
Salary range: The range for this position can be found at the top of this posting. This range is provided as a general guideline and represents a good faith estimate across all experience levels. Actual base salary will be determined by a variety of factors, including but not limited to, the scope of the role, relevant experience, job-related knowledge, education and training, key skills, and geographic market considerations. For roles available in multiple states, the range may vary to reflect differences in local labor markets. In addition to base salary, eligible positions may include other forms of compensation such as annual bonuses or long-term incentive opportunities. Benefits - Comprehensible benefits for full-time employees (part-time employees receive a limited package tailored to their role):
Medical, dental, and vision insurance
Robust vacation and sick leave benefits, and flexible work arrangements where permitted by role or contract
401(k) plan that includes employer matching funds
Tuition reimbursement program
Life insurance and disability coverage
Optional coverages that can be purchased, including pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection
Birth, adoption, parental leave benefits
Employee Assistance Plan
To review all Serco benefits please visit: .
Serco complies with all applicable state and local leave laws, including providing time off under the Colorado Healthy Families and Workplaces Act for eligible Colorado residents, in alignment with our policies and benefit plans. The application window for this position is for no more than 60 days. We encourage candidates to apply promptly after the posting date, as the position may close earlier if filled or if the application volume exceeds expectations. Please submit applications exclusively through Serco's external (or internal) career site. If an applicant has any concerns with job posting compliance, please send an email to: View email address on click.appcast.io .
- ...fill the Air Force Base Infrastructure Modernization (BIM) Systems Administrator position. The System Administrator will manage all computer... ...information technology solutions from Systems Engineering to Cyber Security, and from Software Development to Product Solutions...CyberContract workNight shift
- ...Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to... ...defense, civil, and commercial markets. Job Title: System Administrator Location: Sterling, VA Clearance: TS/SCI Poly...CyberContract work
- ...Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to... ...broad knowledge of hardware maintenance and care, system administration, knowledge of automation technologies, and scripting....Cyber
$132.96k - $226.04k
...Description We are looking for a highly skilled Senior Cloud Systems Administrator to join our program driving the Model Based Systems... ...dedication shows in everything we do—from intelligence analysis, cyber operations and IT expertise to systems development, systems...CyberFull timeLocal area- ...Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to... ...markets. Job Summary Nightwing is seeking a Systems Administrator with a proven ability supporting Information Technology...Cyber
- ...Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to... ...community, defense, civil, and commercial markets. Security Administrator Responsibilities include: The security...Cyber
- ...Data Center Administrator The Leidos Chief Information Office, reporting through our Digital... ...data center infrastructure and systems. This role is critical to ensure the data... ...Hat OpenShift) Strong commitment to cyber defense mechanisms and proactive threat...CyberFull timeFor contractorsWork at officeRemote work
- ...IT Enterprise System Admin 5+ years of experience in an IT enterprise System Admin role... ...Expert level Microsoft Azure Administrator Expert level Windows admin skills (Active... ...Infrastructure groups (Cloud Operations, Cyber Security, and Systems Administration)....Cyber
- ...IT Enterprise System Admin 5+ years of experience in an IT enterprise System Admin role... ...Cloud Admin position Microsoft Azure Administrator experience Microsoft Azure Network... ...Infrastructure groups (Cloud Operations, Cyber Security, and Systems Administration)....Cyber
- ...Cloud Systems Administrator The Cloud Systems Administrator will be responsible for the overall evaluation, design, and daily operation of... ...Expert (SME) and consultant to other Infrastructure groups (Cloud Operations, Cyber Security, and Systems Administration)....Cyber
$93.9k - $156.8k
...AWS Cloud Systems Administrator Location US-VA-Chantilly ID 2026-4251 Category IT / Cyber Security / Network Systems Position Type Full-Time Remote No Clearance Required Secret Overview AMERICAN...CyberFull timeFor contractorsRemote work- ...Senior System Administrator Since 2006, MAXISIQ has advanced the state of Cyber RDT&E by bringing together industry expertise in software, hardware, communications and security, and leveraging decades of operational experience to deliver exceptional value to communities...CyberFull time
- ...completion through the automated tracking system. - Manage network email services -... ...Procurement Office guidelines. - The System Administrator team supports Network Team activities to... ...areas of national defense, homeland and cyber security. TENICA provides knowledgeable...CyberWork at office
- ...Description Since 2006, MAXISIQ has advanced the state of Cyber RDT&E by bringing together industry expertise in software,... ...most. Job Description MAXISIQ is seeking Senior System Administrator candidates for anticipated and future opportunities . The...CyberFull time
- ...IT Systems Administrator Systems Planning and Analysis, Inc. (SPA) delivers high-impact, technical solutions to complex national security... .... This position is aligned with the Operations Research and Cyber Analysis (ORCA) division and located in their Chantilly, VA...CyberWork at officeImmediate startRemote work
- ...government and commercial entities. Our services improve Information System networking performance and compliance and protect electronic... ...'re a team of innovators protecting organizations from evolving cyber threats. With 18+ years of success in government and commercial...CyberLocal areaImmediate start
$126k - $131k
...Systems Administrator T4 JTSi is a federal government consulting firm, providing technical services to the Federal Government, including DoD... ...to other Infrastructure groups (Cloud Operations, Cyber Security, and Systems Administration). Plan, lead, and perform...CyberLocal area$66k - $106k
...System Administrator, Journeyman Job Locations US-VA-Herndon Requisition ID 2026-165302 Position Category Cyber Security Clearance Top Secret/SCI Responsibilities We are seeking a highly skilled and innovative System...CyberContract workShift work- ...Job Description We are seeking a highly skilled System Administrator to join our team in Chantilly, VA. This full-time role requires a... ...maintenance of applications on mission-critical infrastructure. Cyber Security Management: Ensure compliance with Risk Management...CyberFull timeImmediate startRemote workFlexible hours
$104k - $166k
...System Administrator Job Locations US-VA-Herndon Requisition ID 2026-165319 Position Category Cyber Security Clearance Top Secret/SCI Responsibilities We are seeking a highly skilled and innovative System Administrator...CyberContract workShift workNight shift$112k - $179k
...Cyber Systems Administrator Job Locations US-VA-Herndon Requisition ID 2026-164038 Position Category Cyber Security Clearance Top Secret/SCI w/Poly Responsibilities Currently seeking a Cyber Systems Administrator...CyberContract workShift work- ...Cyber Intrusion Detection System Administrator Level 4 : Monitor day-to-day operations of the sensors (Suricata, Palo Alto, and ArcSight) located at supporting customer's locations. Perform Enterprise Defense Countermeasure (DC) activities and coordination...CyberShift workWeekend workDay shiftAfternoon shift
$79.4k - $162.7k
...Job Title: Virtualization and Systems Administrator Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start... ..., reducing cost and increasing efficiency Solve cyber problems through operations, data-driven analytics, and development...CyberFull timeContract workWork experience placementImmediate startFlexible hours$77.6k - $176k
...Systems Administrator The Opportunity: Are you looking for an opportunity to share your experience in Zero Trust Architectures (ZTA)... ...infrastructures Secret clearance Bachelor's degree Cyber Security or Security+ Certifications Nice If You Have:...CyberFull timeContract workPart timeWork at officeLocal areaRemote work- ...Systems Administrator Location: Reston, VA Work Type : Onsite Remote Work : NO Job Description Gridiron IT looking for... ...Our capabilities include IT Infrastructure & Cloud Services, Cyber Security, Software Integration & Development, Data Solution...CyberFull timePart timeWork experience placementRemote work
$129.3k - $193.9k
...have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,... ...to join our diverse team of engineers, system administrators, and operators as a Principal Cyber Systems Engineer or Senior Principal Cyber Systems Engineer...CyberRemote workRelocation packageShift work- ...Systems Administrator TS/SCI + Poly CHANTILLY VA We believe the highest-impact work in national security and technology is a team sport... ...how we think is to see what we've built. From full-spectrum cyber operations and de-biased AI platforms to quantum networking...CyberTemporary workLocal areaImmediate start
- ...leading specialty firm of high caliber talent who specialize in Cyber Operations, Cyber Defense, Information Assurance, Software... ...of every employee! We are currently looking for the next System Administrator to join our team of experts! What you'll be doing: • Maintains...Cyber
$50.7k - $91.65k
...capabilities for defense and intel customers in the areas of cyber,logistics, security operations, and decision analytics.... ...Intel Security Sector at Leidos currently has an opening for a Systems Administrator.Your job will be to bring together systems administration, systems...CyberInternshipLocal areaImmediate startRemote work- ...We design, build, operate, and maintain cyber-physical solutions for the nation’s most... ...automation and controls, audiovisual, and IT systems. Headquarters in Tysons, Virginia, M.C.... ...industries. We are seeking a System Administrator 3 to join our Security and Electronic...CyberWork at officeLocal areaFlexible hoursNight shift
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Cyber Systems Administrator. Be the first to apply!
- IT administrator Sterling, VA
- system admin Sterling, VA
- computer systems administrator Sterling, VA
- microsoft systems administrator Sterling, VA
- systems administrator Sterling, VA
- server administrator Sterling, VA
- application system administrator Sterling, VA
- IT infrastructure administrator Sterling, VA
- enterprise administrator Sterling, VA
- cyber Sterling, VA

