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Junior Operations Associate
CACI
Manassas, VA · Manassas
CACI is seeking a talented Junior Operations Associate to join our team in Manassas VA. In this role, you'll work with the customer, field service representatives and service desk points of…
Added 1 min ago
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Armed Security Officer (2nd shift)
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NH, Nashua, NH
- $24 to $28 USD / hour
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Nuclear PET CT Technician
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Patient Care Technician – Cardiac / Medicine Unit
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- $18.93 to $27.41 USD / hour
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Assistant Store Manager
Royal Farms
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- $42,000 to $55,000 USD / year
Support the Store Manager in building and sustaining a high-performing retail team through recruiting, onboarding, training, and continuous development.
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Assistant Store Manager
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- $42,000 to $55,000 USD / year
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Attorney Recruiting Manager
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Cardiovascular Non-Invasive Technologist - Echo Sonographer
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Surgical Technologist - Operating Room
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- $1,955 to $2,055 USD / week
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IT Network Technician Level TWO
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Senior Solutions Consultant
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Drive the technology evaluation stage of the enterprise sales process and act as the primary technical advisor and product advocate for Appian.
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Retail Sales – Part Time
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Retail Sales – Part Time
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KBR

Senior Windows System Administrator

Huntsville, AL, United States

Compensation: $100,000 - 150,000.

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Job details

Pay: Compensation: $100,000 - 150,000.
Experience: 7+ years of experience administering enterprise Windows environments.
Posting language: English
Posted: Nov 9, 2026

Original job description

Title:

Senior Windows System Administrator At KBR, we deliver science, technology and engineering solutions to governments and companies around the world. KBR employs approximately 37,000 people worldwide with customers in more than 85 countries and operations in over 28 countries. KBR is proud to work with its customers across the globe to provide technology, value-added services, and long-term operations and maintenance services to ensure consistent delivery with predictable results.

Trinzic is the future independent company to be created through the planned spin-off of KBR's Mission Technology Solutions business, expected in January 2027. Our people work at the frontier of what is possible, delivering solutions in challenging environments and advancing some of the world's highest-priority national security and space missions.

Backed by decades of mission success, deep expertise, and trusted partnerships, Trinzic will launch as a global organization with more than 18,000 employees supporting customers around the world. Join us at a defining moment and help shape the future of a company built to tackle complex challenges and make a meaningful impact.

Candidates who join KBR's Mission Technology Solutions business before the spin-off will transition to Trinzic when the separation is complete and will not need to reapply for employment.

Program Summary KBR’s Missile, Aviation, and Ground Systems (MAGS) division delivers mission engineering solutions for critical U.S. Army programs, specializing in aviation and ground systems, integrated air and missile defense, and threat and target systems. As a trusted partner of the U.S. Department of War, MAGS provides innovative, technology-driven solutions to enhance national security. With a global presence and a strong ethical framework, KBR ensures secure, effective, and mission-ready capabilities worldwide.

Job Summary As a Senior Windows Systems Administrator, you will serve as a technical lead responsible for the administration, maintenance, security, and modernization of enterprise Windows infrastructure supporting classified and unclassified mission environments. This role combines advanced systems administration responsibilities with a strong customer service focus. The successful candidate will administer Active Directory, Group Policy, Windows Server, MECM/SCCM, and enterprise endpoint management solutions while serving as a trusted technical resource for end users, customers, and mission stakeholders. The position requires the ability to communicate complex technical concepts to non-technical personnel, resolve customer issues professionally and efficiently, and ensure a positive user experience across all supported environments. Working closely with systems administrators, infrastructure engineers, cybersecurity personnel, network engineers, and end users, you will provide technical leadership while ensuring reliable, secure, and responsive IT services that support mission execution.

Key Responsibilities

Administer and maintain enterprise Active Directory environments, including users, groups, organizational units, and delegated administration.
Design, implement, and troubleshoot Group Policy Objects (GPOs) supporting security, compliance, and operational requirements.
Manage Windows Server infrastructure, including Domain Controllers, DNS, DHCP, file services, and authentication systems.
Administer enterprise patch management utilizing WSUS, MECM/SCCM, and related Microsoft technologies.
Deploy, manage, and support Windows 11 workstations, operating system upgrades, software deployments, and endpoint lifecycle activities.
Develop and maintain workstation imaging and deployment solutions using MECM/SCCM, MDT, WDS, or similar technologies.
Provide Tier 2 and Tier 3 support for escalated user, workstation, and infrastructure issues.
Serve as a senior technical resource for customers and end users, ensuring timely resolution of incidents and service requests.
Implement DISA STIGs, perform vulnerability remediation, and support cybersecurity compliance efforts.
Develop PowerShell automation and administrative scripts to improve operational efficiency.
Support CAC/PKI authentication, certificate services, and identity management solutions.
Collaborate with engineering and cybersecurity teams to support RMF requirements and secure system operations.
Mentor junior administrators and assist with technical training and knowledge sharing.
Maintain documentation, standard operating procedures, and knowledge base articles.

Basic Qualifications

U.S. Citizenship required.
Active Secret clearance required; or ability to obtain and maintain secret clearance.
7+ years of experience administering enterprise Windows environments.
Experience supporting Windows Server 2016, 2019, and 2022 environments.
Experience administering Domain Controllers, DNS, DHCP, and enterprise authentication services.
Experience with MECM/SCCM, workstation imaging, software deployment, and endpoint management.
Experience supporting Windows 10 and Windows 11 enterprise environments.
Experience administering enterprise patch management through WSUS, MECM/SCCM, or similar platforms.
Experience developing and maintaining PowerShell automation solutions.
Experience providing direct customer support in a professional enterprise IT environment.
Strong troubleshooting, communication, organizational, and customer service skills.
Ability to communicate effectively with technical staff, leadership, and non-technical users.
Ability to work independently, manage competing priorities, and lead technical initiatives.

Preferred Qualifications

Microsoft certifications such as Azure Administrator Associate, Windows Server Hybrid Administrator Associate, or equivalent.
DoD 8140 / 8570 IAT Level II certification (e.g., Security+ CE) or higher.
Experience supporting Department of Defense IT environments.
Experience supporting classified information systems.
Experience administering MECM/SCCM in large-scale enterprise environments.
Experience implementing and troubleshooting Group Policy in complex environments.
Experience with DISA STIG implementation, SCAP compliance, ACAS remediation, and RMF processes.
Experience with Microsoft Defender for Endpoint, Intune, Entra ID, or other Microsoft security technologies.
Experience with VMware vSphere, Hyper-V, or other virtualization platforms.
Experience with enterprise storage, backup, and disaster recovery solutions.
Familiarity with PowerShell Desired State Configuration (DSC) and infrastructure automation.
Familiarity with TCP/IP, VLANs, routing, switching, DNS, and firewall technologies.
Experience supporting executive leadership, government customers, or mission-critical users in a customer-facing role.
Experience leading technical projects, mentoring junior administrators, and serving as a technical escalation point.

Compensation: $100,000 - 150,000. The salary range posted is based on the national average. The offered rate will be based on the selected candidate’s location, knowledge, skills, abilities, and/or experience, contract affordability, and in consideration of internal parity.

Belong, Connect and Grow at KBR

At KBR, we are passionate about our people and our Zero Harm culture. These inform all that we do and are at the heart of our commitment to, and ongoing journey toward being a People First company. That commitment is central to our team of team’s philosophy and fosters an environment where everyone can Belong, Connect and Grow. We Deliver – Together.

KBR is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, disability, sex, sexual orientation, gender identity or expression, age, national origin, veteran status, genetic information, union status and/or beliefs, or any other characteristic protected by federal, state, or local law.

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