Permanent Senior Systems Administrator Job Vacancies

76 to 100 of 113 Permanent Senior Systems Administrator Jobs

Sr Systems Administrator Level 3 - Poly clearance Required with Security Clearance

Annapolis Junction, Maryland, United States
Praxis Engineering
System Administrator We have an immediate need for a System Administrator to maintain critical IT systems and orchestrating novel and efficient baseline configuration management. Typical duties will include health and status monitoring of hardware and software components, automated deployments of baselines, patches, services, and configuration. Defect and problem resolution, communication with stakeholders, and scheduling system … events for inventory of client/server/storage/network/mobile/support devices. What you will be doing: The Senior System Administrator is responsible for all operational aspects of the development & test environment(s) associated with an exciting and important capability contributing to our national defense. He/she will manage all More ❯
Employment Type: Permanent
Salary: USD 271,085 Annual
Posted:

Systems Administrator (CNS), Senior with Security Clearance

Annapolis, Maryland, United States
Navstar Inc
that continues to meet operational needs as well as upgrading and maintaining capabilities. The selected candidate must be comfortable working in a fast-paced environment with multiple air-gapped systems which have individual domains, supporting infrastructure, and maintaining a complex IT environment with multiple logins and associated supporting storage and network infrastructure. The position requires an energetic, focused, and … undertakings. Required Skills and Qualifications: Qualified candidates must possess an active TS/SCI with polygraph clearance to be considered. This individual will be responsible for installing and administrating systems, applications, and processes, and for ensuring that all issues are identified and resolved in a timely manner. He/she will be responsible for ensuring server and desktop configurations … Communicating with users and external support personnel regarding system outages and upgrades and conferring with upper management regarding recommended resolution options. Desired Skills and Qualifications: Previous experience as a systems administrator. Must be proficient with Windows Server 2012R2, 2016, 2019, and Active Directory. Must have experience with Linux and Microsoft-based servers and workstations. Must have experience with Windows More ❯
Employment Type: Permanent
Salary: USD 240,000 Annual
Posted:

Senior Enterprise Management (EM) System Administrator, Tier-3 with Security Clearance

San Antonio, Texas, United States
ASRC Federal
our team and discover why we are a top veteran employer and Certified Great Place to Work ASRC Federal is currently seeking a Senior Enterprise Management Systems Administrator - Tier-3 Level to support upcoming work located in San Antonio, TX. Summary: This contract will provide 24/7/365 operations support to the … results. Provide enterprise administrators with current drivers for assigned hardware within the OSD process. Ensure appropriate drivers are used for assigned hardware. Add, distribute, and install images. Provide senior level technical support for troubleshooting of OSD related issues. Send notification to customers and groups prior to and after implemented requests or modifications. Manage and operate the IT … field. Required Certifications: Applicants will be required to have: incumbents have 6 months to obtain CompTIA Security+ (DoD 8570/8140 IAT Level II Baseline) Microsoft Certified: Azure Administrator Associate Microsoft Certified: Windows Server Hybrid Administrator Associate Must have the ability to: Provide excellent customer service Coordinate several concurrent tasks Interface with users in a pleasant More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Sr. Linux Systems Administrator with Security Clearance

Hyattsville, Maryland, United States
Black Bear Technology
Overview: The Senior Linux System Administrator is responsible for leading system administration activities. This position oversees the installation, configuration, maintenance, and integrity of computing systems and software. The role involves planning, ensuring long-term system requirements align with organizational objectives, and implementing system enhancements to improve performance and reliability. Key Responsibilities: Lead system administration … Assign and manage staff workloads, provide direction, and evaluate performance. Coordinate with local ARL IT leadership to align support efforts with new project needs and risk management requirements. Ensure systems meet ARL performance, security, and reliability standards. Install, configure, and maintain software and operating systems. Implement operating system enhancements for improved performance and reliability. Respond to and resolve complex … system administration issues. Conduct quality control and performance management efforts for optimal system uptime. Required Qualifications: • Experience: Minimum of 10 years in systems administration roles • Education: Master's degree or Bachelor's degree with an additional 2 years of relevant experience • Certifications (Required): CompTIA Security+ CE or CompTIA Server+ CE Red Hat Certified System Administrator (RHCSA) MCSA More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior HPC Systems Administrator with Security Clearance

Annapolis Junction, Maryland, United States
FUSE Engineering
requirements o Multi-vendor servers running Red Hat of SuSe with direct attached, FC SAN storage or SSDs • Distributing computing tools such as ReS, LSF, and SLURM • HPC farm systems, HPC MPP clustered systems, Front End servers of Special Purpose devices (SPDs) • IBM of HP Blade servers with FC/SAS/Network back end • Multi-vendor filesystems … such as XFS, GPFS and Lustre • Pre-Factory testing, Factory testing, System integration and Acceptance testing during the purchase process of the HPS systems Requirements Accepted professional certifications include: Valid RHCSA or higher red Hat certification Valid VMWare certification IAT Level II Certification Required EQUAL OPPORTUNITY EMPLOYER VETERANS DISABLED More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior HPC Systems Administrator with Security Clearance

Salt Lake City, Utah, United States
FUSE Engineering
requirements o Multi-vendor servers running Red Hat of SuSe with direct attached, FC SAN storage or SSDs • Distributing computing tools such as ReS, LSF, and SLURM • HPC farm systems, HPC MPP clustered systems, Front End servers of Special Purpose devices (SPDs) • IBM of HP Blade servers with FC/SAS/Network back end • Multi-vendor filesystems … such as XFS, GPFS and Lustre • Pre-Factory testing, Factory testing, System integration and Acceptance testing during the purchase process of the HPS systems Requirements Bachelors degree in Computer science or related field and 10 years of demonstrable experience supporting the IT community Accepted professional certifications include: Valid RHCSA or higher red Hat certification Valid VMWare certification IAT Level More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior System Administrator (MSO) with Security Clearance

Livermore, California, United States
General Dynamics Information Technology
Systems Administrator/Mission Support Operator - $10K Sign-on bonus Classified work and therefore must be on-site Mission Support Operator (MSO) provides 24/7, 365, 12hrs shift, Tier 1/2 operational support to end customers and users in the field/worldwide. Monitor the performance and capacity of end-to-end IT computer systems … situational awareness and resolution to the user community. Serve as first responder and 'one-stop shop' for all site issues, requiring a broad level of knowledge of high priority systems across a multi-location enterprise. This is similar to a civilian Emergency Operations Center for Police/Sheriff Department but it is not the same; however, we action … next 2-3 months. The rotation helps ensure equity regards to work life balance for all members of team. Other duties include: Monitoring, recognition, evaluation, and correction of IT systems, network and satellite ground stations. Interfacing with the user community, Mission Directors, System Administrators, Network Engineers, external sites and other system operators as required for real-time detection, isolation More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior System Administrator with Security Clearance

Washington, Washington DC, United States
Envisioneering, Inc
The Senior System Administrator will be the primary performer of routine and complex system administration, network administration, security administration, and technical support tasks in addition to related database administration tasks for the U.S. Naval Research Laboratory (NRL). System Administration: Install, update, and troubleshoot systems/servers. Conduct functional and connectivity testing to ensure … continuing operability. Develop and document systems administration standard operating procedures. Comply with organization systems administration standard operating procedures. Implement and enforce local network usage policies and procedures. Maintain baseline system security according to organizational policies. Manage accounts, network rights, and access to systems and equipment. Manage system/server resources including performance, capacity, availability, serviceability, and recoverability. … ensure information is safeguarded against outside parties. Test and maintain network infrastructure including software and hardware devices. Implement new system design procedures, test procedures, and quality standards. Integrate new systems into existing network architecture. Provide feedback on network requirements, including network architecture and infrastructure. Security Administration: Assess the effectiveness of security controls. Apply security policies to meet security objectives More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Sr. Systems Administrator with Security Clearance

Fort Belvoir, Virginia, United States
Global Enterprise Services, LLC
Sr. System Administrator The Sr. System Administrator will be responsible for the functional and technical design of solutions within the DTRA ITD I3TS portfolio, including leading the technical design of solution components and developing system and technical requirements in support of customer-facing capabilities in a Data-Driven, AI ready, hybrid cloud-based environment in Fort … will be experienced using DevSecOps tools to drive continual improvements. Specific tasks include developing and designing innovative technical solutions to improve the reliability, security, performance, and agility of the systems, including deriving and authoring functional, technical, performance, security, and availability requirements, in a continuous innovation process that leverages feedback derived from measuring deployed capabilities against key metrics to demonstrate … AD with Azure Active Directory/hybrid identity solutions. • Familiarity with ADFS, LDAP-based applications, or other federation technologies. • Microsoft certifications such as Microsoft Certified: Windows Server Hybrid Administrator Associate, MCSA, or MCSE. • Prior experience in a federal or DoD environment. More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Windows Systems Administrator with Security Clearance

Annapolis Junction, Maryland, United States
FUSE Engineering
Experience with Agency security requirements and implementation of STE mechanisms Requirements TS/SCI clearance with a polygraph Bachelor's degree in Technology and 15+ years of experience with systems administration, or 20+ years of experience with systems administration in lieu of a degree More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Mid/Sr System Administrator with Security Clearance

Annapolis Junction, Maryland, United States
Leidos
engineering requests that meet operational needs as well as upgrading and maintaining capabilities. The selected candidate must be comfortable working in a fast-paced environment with multiple air-gapped systems which have individual domains and supporting infrastructure, and with maintaining a complex IT environment with multiple logins and associated supporting storage and network infrastructure. The role requires an energetic … and must adapt quickly in working with the team to undertake various system administration network-centric tasking. Responsibilities Include: The selected individual will be responsible for installing and administrating systems, applications, and processes, and for ensuring that all issues are identified and resolved in a timely manner. She/he will be responsible for ensuring server and desktop configurations … and external support personnel regarding system outages and upgrades and conferring with upper management regarding recommended resolution options. Basic Qualifications: Bachelor's Degree in System Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or a related technical field and at least 8 years of relevant experience. Additional experience may be substituted for a degree. Must have experience as More ❯
Employment Type: Permanent
Salary: USD 162,150 Annual
Posted:

Sr Linux System Administrator-TS/SCI with FS Poly with Security Clearance

Chantilly, Virginia, United States
Inferno Systems
LINUX SYSTEM ADMINISTRATOR: Expert Level Location: Chantilly, VA US Security Clearance Requirement: TS/SCI with Full Scope Polygraph Clearance Status: Must be Current JOB DESCRIPTION: Inferno Systems is currently looking to hire individuals for our Linux System Administrator positions. Candidates should have a preferred minimum of 7+ years as a network engineer/system … case-by-case basis, depending on technical skill level. JOB SUMMARY: This position will require a solid understanding of Linux administration as you help design, build and test new systems employed by our customer to support ongoing operations. You will be taking and managing requirements between developers and engineers in Technical Exchange Meetings (TEMs) You will function as a … Linux systems SME to help them design a system that both meets operational requirements and system security plans. Successful candidates will know how to install, configure, and maintain Linux operating systems. They will analyze and resolve problems associated with the operating system's servers, hardware, applications and software. REQUIRED SKILLS: • Experience as a Linux Systems Administrator More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior System Administrator with Security Clearance

Annapolis Junction, Maryland, United States
CACI
Senior System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None Type of Travel: None At CACI, we specialize in providing innovative and secure IT solutions to our clients in the defense and national security sectors. Our … mission is to support critical infrastructure with the highest standards of service and reliability. We're looking for a skilled System Administrator to join our team and help maintain, troubleshoot, and optimize a wide variety of IT systems. We are seeking an accomplished System Administrator - Level 4 to lead and support complex enterprise IT environments, with … Access Management (PAM), SCCM, and MS Exchange Qualifications: Bachelor's degree in a technical discipline (4 years of additional experience may substitute) 20+ years of experience as a System Administrator on programs of similar scope and complexity 8+ years of experience with IT Service Management (ITSM) Certifications: DoD 8570 IAT Level III certification (e.g., CASP+, CISSP, or equivalent More ❯
Employment Type: Permanent
Salary: USD 265,800 Annual
Posted:

Senior Cloud System Administrator with Security Clearance

Hanover, Maryland, United States
MANTECH
ManTech seeks a motivated, career- and customer-oriented Sr Cloud System Administrator to join our team in Hanover, MD. Our team delivers enterprise infrastructure capabilities for a global workforce performing a wide range of missions in defense of our Nation. This effort supports the Enterprise Infrastructure Services (EIS) organization, which oversees MPO's Enterprise Information Technology (EIT)-the … performing root cause analysis Administer and troubleshoot various Linux distributions (e.g., Ubuntu, CentOS, RHEL) within both cloud and on-premise contexts Minimum Qualifications: 20+ years of experience as a Systems Administrator or Cloud Engineer supporting programs and contracts of similar scope and complexity Bachelor's degree in system engineering, Computer Science, Information Systems, Engineering Science, Engineering … from program start to obtain it Proficiency in administering Linux operating systems. Experience with Windows Server 2022 administration, including Active Directory and networking Proven experience as a System Administrator or Cloud Engineer with practical knowledge of cloud environments Preferred Qualifications: Experience working in enterprise or government environments Familiarity with cloud security and compliance practices Hands-on experience with More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior System Administrator with Security Clearance

Springfield, Virginia, United States
RTX
the needs of today's mission and stay ahead of tomorrow's threat. Our team solves tough, meaningful problems that create a safer, more secure world. Raytheon seeks a Systems Administrator to join a high-performing team at the heart of an important US government function which helps the nation meet its national security strategy. This is … for an on-site system administrator sustaining and maintaining a VM-based data system supporting a high visibility system critical to this agency's day-to-day and contingency operations. This architecturally complex, multi-networked system has many users who demand quick troubleshooting, active workflow management, and restoral operations as needed. The selected candidate will work an Operations More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

SENIOR SYSTEM ADMINISTRATOR (220) - TEXAS - URGENT with Security Clearance

San Antonio, Texas, United States
Cyberstrike Group
Job Number: 220 Job Title: SENIOR SYSTEM ADMINISTRATOR (220) - TEXAS - URGENT Job Type: Full-time Clearance Level: Top Secret/SCI - Full Scope Polygraph Work Arrangement: On-site Job Location: San Antonio TX Salary: 160K Background Provide support for implementation, troubleshooting and maintenance of IT systems Manage the daily activities of configuration and operation … of IT systems Perform periodic vulnerability scans of systems Implement IAVA security patches and insure patch status is recorded in appropriate systems of record Optimize system operations and resource utilization, and perform system capacity analysis and planning Configure and manage UNIX, Linux and Windows (or other applicable) operating systems and installs/loads operating system software … with the Information System Security Officer (ISSO) and Information System Owner (ISO) regarding system changes as part of the Change and Configuration Management Process components, along with implementing operating systems enhancements to improve reliability and performance Support the ISO by completing required milestones of POA&M as directed and coordinate completion status with the ISSO to reflect status within More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Business Systems Administrator

Southampton, Hampshire, United Kingdom
Accora Ltd
Main purpose of job To define, develop and administer the company's critical business systems (NetSuite/HubSpot) Key responsibilities, duties and tasks Administration & Configuration Oversee setup and configuration of NetSuite and HubSpot, including user roles, permissions, workflows, and system preferences. Ensure alignment of system configurations with business processes and compliance requirements. Perform routine maintenance, manage updates, and troubleshoot … system capabilities. Develop and maintain custom scripts and workflows using SuiteScript, JavaScript, and SuiteQL to automate tasks and improve efficiency. Collaboration & Optimisation Lead integration efforts between ERP/CRM systems and other business platforms. Optimize system performance and user experience through tailored configurations and enhancements. Work closely with Finance, Sales, Operations, and other departments to translate business needs into … and reporting. Proficient in scripting in multiple languages such as SuiteScript and Java Script. Strong technical and analytical skills It is desirable that the postholder has: Understanding of CRM systems such as HubSpot. Experience working with financial and sales data. Experience and knowledge It is essential that the postholder has: Experience administering Netsuite. Ideally 3 + years' experience. Strong More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior System Administrator with Security Clearance

Columbia, Maryland, United States
DCCA
and commercial enterprises since 1982. DCCA is proud to offer career growth opportunities and a competitive compensation and benefits package. Visit our website at: Senior System Administrator Candidate must have an active TS/SCI w/Poly For over 40 years, DCCA has provided a broad range of IT services to government agencies and … diverse array of perspectives. Join us and be part of a team that has a people first mentality and a dedication to excellence. The Senior System Administrator will main tain data files and control procedures for a complex system of networked computers or for a single group of microcomputers linked to a host workstation, or … security and data integrity. Assigns passwords and monitors use of resources, backs up files as required and responds to management requests for information. Provides technical guidance to lesser-experienced systems administrators. An equivalent of a bachelors degree in computer science, or related field, or equivalent experience, and five to seven years of related experience. At DCCA, we believe the More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Linux - Windows System Administrator with Security Clearance

Reston, Virginia, United States
ICF
mile radius will be considered full-time remote and will not be required to report onsite on a daily basis. We are seeking a highly skilled, customer-facing Systems Administrator to support Linux and Windows environments for a critical Treasury program. The ideal candidate possesses extensive Linux expertise, demonstrates initiative and openness in their approach, and excels … collaborating with stakeholders. This position requires U.S. Citizenship and the ability to obtain and maintain a Public Trust clearance. Key Responsibilities: Administer and support both Linux and Windows operating systems, ensuring optimal system performance and adherence to security compliance standards. Apply patches, monitor vulnerabilities, and coordinate with the Oracle cloud provider and the Treasury team to remediate findings. Participate More ❯
Employment Type: Permanent
Salary: USD 166,810 Annual
Posted:

Sr. Systems Administrator (OT) with Security Clearance

Dayton, Ohio, United States
Hybrid / WFH Options
Amyx Inc
Amyx is seeking to hire Sr. Systems Admin for a remote position supporting a DLA Operational Technology (OT) contract. The Sr. Systems Admin ensures the stable operation of all in-house and cloud-based computer software systems and network connections. This includes planning, developing, installing, configuring, maintaining, supporting, and optimizing all software, operating systems, and communication … Ability to analyze, research, and provide recommendations on technology direction to align with business vision. Will be required to provide both local and remote maintenance support to various operational systems deployed at more than one location. Support includes general maintenance, upgrades, and new installs of servers and applications. Applies advanced technical knowledge of application networking, including load balancing applications … travel to industrial environments and customer sites. Patch, Support and Maintain Windows server, IoT devices, industrial equipment, and multiple workstations needed to successfully operate and run Energy and Fuel Systems and Operational Technology (OT). Admin will work with a remote team, on all cybersecurity and planning activities. The admin will maintain current systems and work with Operational More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Level-Cloud System Administrator with Security Clearance

Huntsville, Alabama, United States
Leidos
the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business. Your greatest work is ahead! Leidos' Defense Systems Land Systems is seeking a Cloud System Administrator to join our team with the ability and experience to work missile defense projects within the BMD Simulations … relationships with the Customer, Program Management and technical staff members within the program. If this sounds like the kind of environment where you can thrive, keep reading! Leidos Defense Systems Sector provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide. Solutions for Defense include enterprise and mission IT … large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support. Our team is solving the world's toughest security challenges for customers with "can't fail" missions. To explore and learn more, click here ! Are you ready to make an impact? Share your resume with us today! Primary Responsibilities More ❯
Employment Type: Permanent
Salary: USD 203,275 Annual
Posted:

Sr. Linux Systems Administrator with Security Clearance

El Segundo, California, United States
RTX
to meet the needs of today's mission and stay ahead of tomorrow's threat. Our team solves tough, meaningful problems that create a safer, more secure world. Sr. Systems Administrators collaborate with many teams to support fast-paced, critical programs with classified information system capabilities. Success in this role means you can develop, implement and maintain secure, cost … that Raytheon teammates across the globe can communicate, collaborate and innovate for customer success. We create leading-edge technology solutions to prevent security threats, secure the integrity of our systems and support IT infrastructures around the world. What You Will Do: Provide IT systems administration in a heterogeneous Microsoft Windows and RedHat Enterprise Linux environment. Working as a … security requirements. Must be able to obtain Department of Defense Directive (DoDD) 8140/8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within 6 months of start date. Systems are operational 24x7 and occasionally require work effort beyond standard work hours. Travel required as business needs dictate to other US Domestic locations, up to 10% per year. Full More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior System Administrator (Government) with Security Clearance

Reston, Virginia, United States
AT&T Government Solutions
technical collection and exploitation missions and focused on driving optimization of performance and cost over time across multiple security domains. AT&T has an opening for a Sr. System Administrator for the TAC2O program. This position will be providing managed IT support of TAC2O systems for high-priority defense intelligence collection needs. Job Duties/Responsibilities: • Plans … SCCM, PDQ, etc. • Provides advanced level administration and troubleshooting of Active Directory, GPO, DNS, DHCP, and Domain Controllers. • Provides expert level support and mentoring for Mid and Junior System Administrator personnel. • Develops and maintains installation and configuration procedures for system and software changes. • Utilizes scripting to automate common tasks. • Performs hardware maintenance/repair activities. • Ensures proper planning … Qualifications • Satellite server administration. • Ansible playbook writing. • Implementing STIGs. • Experience supporting a software configuration management and development environment. • Linux OS (CentOS, RHEL) administration. Our Senior System Administrator's earn between $89,200 - $196,000. Not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may More ❯
Employment Type: Permanent
Salary: USD 196,000 Annual
Posted:

System Administrator, Senior with Security Clearance

Fairfax, Virginia, United States
Navstar Inc
Would you like to perform rewarding work while contributing to the success of an established, growing company? Navstar is an award-winning organization that has a proven track record of successfully providing IT services and solutions both as a prime More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Sr Systems Administrator with Security Clearance

Annapolis Junction, Maryland, United States
ELEVI Associates, LLC
features (e.g., Snapshot, SnapVault, FlexClone, SnapMirror, FlexVol, Fabric Pool, and Object Storage) Knowledge of the NetApp storage grid Knowledge of virtualization platforms (e.g., VMware) and their integration with storage systems NetApp OnTap Proficiency in NAS protocols, including NFS and SMB Proven track record in designing and managing enterprise storage environments Some of your day-to-day activities will include … Responsible for installing, configuring, maintaining and troubleshooting database backups Troubleshoot and diagnose technical issues related to NetApp and Commvault systems Develop and maintain technical documentation, including troubleshooting guides, best practices, and standard operating procedures Mentor and train other support engineers in the team, sharing knowledge and best practices Stay current with the latest NetApp technologies, best practices, and certifications More ❯
Employment Type: Permanent
Salary: USD 120,000 Annual
Posted:
Senior Systems Administrator
10th Percentile
£45,750
25th Percentile
£52,500
Median
£63,750
75th Percentile
£72,813
90th Percentile
£73,375