26 to 50 of 140 Senior Systems Administrator Jobs

greatest work is ahead! The Multi-domain Solutions Division (MDS) within the Leidos National Security Sector is seeking a skilled Senior Systems Administrator to join a new cyber security program and play a key role in supporting government-critical systems. You will be part … Manage, optimize, and secure our IT infrastructure, ensuring the reliability, scalability, and security of our systems. Oversee the installation, configuration, and maintenance of critical systems and applications, while proactively identifying and resolving technical issues. Manage both on-premises and cloud environments, automating routine tasks, and implementing best practices to … IT operations and provide guidance to junior administrators to promote a culture of operational excellence. Responsible for installation, configuration, administration, support and maintenance of systems, including associated hardware. Management of systems infrastructures, implementing best practices to Identify and recommend system functional specifications, configuration of physical and virtual systems More ❯

of the commercial sector to meet the unique challenges of this competitive space. Karthik Consulting is seeking 2 Senior AWS Cloud Systems Operations Administrator Personnel with the below skillset. Position Description: Senior AWS Cloud Systems Operations Administrator Location … Security Clearance: TS/SCI Certifications Required: • AWS SysOps Administrator • IAT Level II Job Summary: The Senior AWS Cloud Systems Operations Administrator provides subject matter proficiency for tasks related to AWS cloud systems operations. This role involves analytical skills to support … A bachelor's degree in a related field is required. A master's degree may substitute for 2 years of experience. • 10 years IT systems administrative experience with both Microsoft and Linux platforms. • Proficient understanding of maintenance (patching, STIG, and upgrade processes) on AWS cloud infrastructure. • Demonstrated experience and More ❯

Senior Systems Administrator Location: Huntsville, AL Work Type: Onsite Remote Work: No Job Description As a systems administrator on our project, you'll ensure the current infrastructure is functional and available. You'll provide your customers with insight into their network … PowerShell, Python, SQL, or Java Experience with vulnerability, compliance, and mitigation for Linux Experience implementing, maintaining, troubleshooting, and automating large network backup processes and systems Top Secret clearance Bachelor's degree RHCSA or RHCE Certification Additional Qualifications Experience with DevOps AWS Certification Clearance: Applicants selected will be subject to More ❯

with a supportive team that feels like family throughout BlueHalo, an AV Company, Nation is an unparalleled opportunity. From Space to C-UAS & Autonomous Systems to Electronic Warfare & Cyber, and Artificial Intelligence, at our company there is no limit to where you can take your career. Our mission is … clear: to lead through innovation. Join the transformation and innovate with us. Overview: BlueHalo, an AV Company, is seeking a Senior Systems Administrator to support the implementation, troubleshooting and maintenance of Information Technology (IT) systems. Key responsibilities will include managing IT system infrastructure, and … any processes related to these systems and supporting IT systems including day-to-day operations, monitoring, and problem resolution for all of the client/server/storage/network devices, and mobile devices. You like to do this: Provide Tier 1 (Help Desk) and Tier 2 (Escalation More ❯

Overview i3 is seeking a Senior Systems Administrator who p erforms administration of on-site technologies and provides end-to-end solutions for IT Systems. Creates and configures virtual and physical machines in a multi-platform environment. Monitors system performance and addresses any issues … requirements for several stakeholders. Provide direct customer service and technical support to local and remote users as required via phone, e-mail, on-line systems and in person. Configure information technology infrastructure in accordance with best practices and DISA STIGs. Maintains the integrity and security of servers and systems applicable to the compliance of RMF accreditation packages. Monitor, evaluate, and maintain systems and procedures to safeguard information systems, networks and databases. Install software, updates, patches and upgrades. Install, configure and manage Active Directory. Understanding of software configuration management, build, deployment and release management, application lifecycle management More ❯

Description SAIC's Horizon 2 contract is seeking an energized and professional Senior Systems Administrator to support the contract's secure operating facilities in Colorado Springs, CO. Your background in configuring, maintaining, and troubleshooting systems in both Windows and Linux environments will be … Address and maintain all hardware and software, in compliance with established policies, as well as establish and maintain accounts for authorized users. Supporting the systems will encompass a range of responsibilities, from server and workstation configuration and maintenance, LAN setup and operability, to cable management, Audio-Visual systems … IT systems. Install and maintain computers (laptops and desktops), to include performing software installations. Manage the daily activities of configuration and operations of IT systems, to include user accounts and system certificates. Problem identification, diagnosis, and resolution, and providing support for implementation, troubleshooting and maintenance of IT systems More ❯

Job Number: R Cloud Infrastructure Systems Administrator, Senior The Opportunity: Are you looking for an opportunity to make a difference and help build a system that will have a positive impact in the intelligence community ( IC ) ? Booz Allen is revolutionizing how sof tware is … sof tware development processes and services. That is why we need you, an experienced iCloud Infrastructure engineer to help us keep our critical mission systems running and allow our clients to continue development of new capabilities to support mission critical operations. As a Cloud Infrastructure System Administrator … IC. Join us. The world can't wait. You Have: 10+ years of experience deploying, configuring, and maintaining RHEL 6, 7 and 8 server systems 10+ years of experience designing, developing, deploying, or testing in Amazon Web Services (AWS) and using tools, including EC2, S3, ELBs, RDS, VPCs, security More ❯

R- Description Leidos has a new and exciting opportunity for a Senior Linux Systems Administrator in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software … Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Job Summary Join our team as a Systems Administrator, where you'll provide crucial support for the implementation, troubleshooting, and maintenance of Information Technology (IT) systems. You'll manage IT … of client/server/storage/network devices, mobile devices, and more. Your role will involve configuring and managing UNIX and Windows operating systems, troubleshooting, maintaining network integrity, and enhancing system performance. Additionally, you'll support dispatch systems and hardware issues, remaining actively involved in the resolution More ❯

set of core values: commitment, integrity, and perseverance. Join our team and help us confront today's most threatening and complex obstacles! Cambridge International Systems, Inc. has a full-time Senior Systems Administrator opportunity available based in McLean, VA. Qualified candidates for this … must possess a current DoD TS/SCI full scope w/poly security clearance. ROLE RESPONSIBILTIES • Maintains smooth operation of multi-user computer systems, including coordination with network engineers. • Monitors and manages system resources, including CPU usage, disk usage, and response times to maintain operating efficiency. • Performs systems … special programs equipment to provide near real time support to specialized customer • Develop and build highly redundant and available REFS storage on JBOD storage systems exceeding 7 PetaBytes • Manage large private library of controlled and classified data to be supplied in proper fashion to customers ensuring data is securely More ❯

Senior Systems Administrator Chantilly, VA Clearance: Active TS/SCI w/Polygraph needed to apply Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets … t look any further than Cornerstone Defense. Responsibilities: Be able to provide support onsite, remotely, over the phone, or via email. Develop solutions for systems & networks that support mission critical and mission essential infrastructure. Analyze existing systems & networks and make proactive recommendations to drive change and create efficiencies. … field; 5 years with a Master's degree, and 3 years with a PhD Degree Experience with Windows and/or Linux Server Operating Systems Experience with Infrastructure Re-Architecture Support Experience with Enterprise Security Assessment Support and A&A accreditation Preferred Qualifications: CCNA Certification Experience with Juniper Firewalls More ❯

Job Description Unlock the Power of Supercomputing: Join BAE Systems-One of the Leading Service Providers of HPCs Contribute to one of our longest running programs where we orchestrate the support and sustainment of some of the world's largest and most advanced supercomputers. We are more than just … and are driven by a sense of duty to empower those who serve our nation. We are seeking a Senior HPC Systems Administrator to support a large client-server based IT enterprise. In this position, you will be responsible for the installation, configuration, and … based platforms. You will create, modifying and delete user accounts, performing system back-ups, and maintain system configuration files. Install and configure hardware, operating systems, and commercial software packages. Develop and implement enterprise backup/recovery strategies, server configuration and consolidation, and verification of the health and status of More ❯

technological advancements to safeguard our country. Are you ready to Innovate, Explore, and Protect? Our team is looking for a Senior Systems Administrator to join our team in Albuquerque, NM working with Space Systems Command with a background in configuring, maintaining, and troubleshooting … The position requires participation in an on-call rotation. Responsibilities: Perform high-level, day-to-day operational maintenance, support, and upgrades for complex operating systems, workstations and servers. Oversee the execution of security measures called out in the security plan to include timely scans of network resources and software … management of Linux and Windows systems. Troubleshoot and perform root cause analysis. This includes troubleshooting any and all issues with system configurations, backups, files systems, and user access. Support RHEL platforms hosting applications, operations and sustainment systems, and ACAS and other security tools. Interface with network engineers, systems More ❯

Job Summary: The Senior Systems Administrator (Project Lead) is a hybrid leadership and technical role supporting the Defense Logistics Agency (DLA) IT UNIX Technical Support Services. This position is responsible for overseeing the execution of complex IT task orders while ensuring the stability, security … and performance of UNIX/Linux enterprise systems across multiple DLA environments, including NIPRNet and SIPRNet. The candidate will serve as both a technical authority and a strategic project lead, coordinating with government stakeholders, ensuring compliance with cybersecurity standards, and delivering reliable IT infrastructure services. This position is contingent … with an active Public Trust clearance or be able to obtain. Certifications: Project Management Certification: PMP or equivalent nationally recognized certification. Red Hat System Administrator (RHCSA) or CompTIA Linux+ (must be from a nationally recognized authority). Minimum of 10 years of specialized IT experience, including at least More ❯

AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of Information Technology, Test & Evaluation, Program Mission Support, Engineering & Analysis, and Training. Responsibilities THIS POSITION INCLUDES A $5,000 SIGN-ON BONUS! As an Senior Systems … Bachelor's degree in a STEM discipline ( additional years of relevant experience taken into consideration in lieu of degree ) 10-12 years of IT Systems Administration with at least 3-5 years of Linux administration DoD 8140 IAT Level II cert (e.g., Security+ CE or equivalent) Experience designing and … automation, and OpenLDAP. Experience with virtualization (VMware) and EMC SAN technology Strong scripting skills (PowerShell, BASH and/or Python) Pay Transparency Statement AMERICAN SYSTEMS is committed to pay transparency for our applicants and employee-owners. The salary range for this position is USD $108,100.00/Yr. - USD More ❯

on some of the most complex technical challenges facing our nation. Security Clearance: • TS/SCI We are seeking a Senior Systems Administrator in Norfolk, VA. The selected candidate will administrator Windows Domains and will optimize the customer's existing architecture by … VMware • Assist with network security through the implementation of STIGs and actively maintain IAVA compliance • Provide support services such as data protection (backup and systems security), Microsoft Windows 2016 Active Directory (to include Group Policy management), WSUS, DHCP, DNS, Microsoft Exchange services, client imaging using WDS, and other server More ❯

GoldenTech, a leader in Air and Space Force Solutions, has an opening at Hill Air Force Base, Utah, for a Senior Systems Administrator with emphasis on Primavera Experience. This role is part of our Information Services team, contributing to our mission of Strategic Deterrence … removing software from networks as needed Training team members in business practices and documenting Standard Operating Procedures (SOPs) Performing software version upgrades and providing systems administration for Windows servers (2016 and 2019) and workstations Designing, installing, configuring, and troubleshooting Microsoft Active Directory Implementing and testing software patches and security More ❯

part of the GDIT Team that solve some of the world's most complex technical challenges! General Dynamics Information Technology (GDIT) is seeking a Systems Administrator, Senior to support the IRES program in Huntsville, Alabama. Duties Include: Manage the day-to-day operation and … mid-to- large enterprise environments or regulated industries is an advantage. Applicable DOD 8140 and professional certifications Certifications such as Microsoft Certified: Endpoint Administrator Associate, JAMF 200/300, ITIL Foundation, CISSP, Security + or similar. Active SECRET clearance with eligibility for TOP SECRET/SCI WHAT CAN More ❯

SAP NS2 Senior Cloud Engineer/Systems Administrator - Onsite - Chantilly, VA Active TS SCI with Polygraph Required NS2 COMPANY DESCRIPTION SAP is the global market leader for business software and related services. SAP National Security Services Inc. (SAP NS2 ) is an independent U.S. subsidiary … offer Visa sponsorships for this role. All internals must have manager's approval to transfer. The NS2 Senior Cloud Engineer/Systems Administrator candidate will be responsible for leading the development of a standalone implementation of SAP Products and solutions that meet our client … s complex needs. This position is located onsite in Chantilly, VA. Candidate should be hands-on and has the necessary knowledge of cloud-based systems and associated security principals to effectively work with minimal supervision in a cloud environment, understanding the complexities that come with cloud, and can effectively More ❯

Digital Dynamo Linux Systems Administrator (We're always looking for great Systems Administrators of ALL LEVELS! And if all of the Systems Administrator positions are starting to look the same, and you may just want someone to review your resume. Go ahead and … that role becomes available. Feel free to check back with our Careers site too ) Join our dynamic team as a Digital Dynamo's aka Systems Administrator Extraordinaires! We're in search of a tech-savvy individual who will not only provide top-notch support for our IT … systems, but also inject a burst of energy into the world of day-to-day operations, monitoring, and creative problem-solving. If you're ready to embrace a role that lets you unleash your innovation, look no further! Your Adventures Await: Mastermind system optimization and unleash the true potential More ❯

Senior NetSuite Systems Administrator Salary: £60,000 – £80,000 p.a Location: Mainly remote with the ability to be onsite in Scotland very occasionally. Our NetSuite client is seeking a NetSuite Systems Administrator to join their team on a permanent basis. You … issues. Maintaining system documentation and ensuring updates are recorded accurately. Performing configuration changes to forms, fields, workflows, and reports. Coordinating with vendors and senior administrators to resolve complex issues. Supporting training initiatives for new users and creating user-friendly guides or materials. Helping deliver future project pipeline … an eagerness to learn and adapt in a fast-paced environment. Ability to translate basic user needs into technical requirements with guidance from senior team members. Excellent communication and collaboration skills for working with internal teams and external partners. NetAsset, NetLease, Advanced Revenue Management, US GAAP/ More ❯

Overview The Senior ERP & CRM Systems Administrator will play a critical role within the IT team, responsible for the ongoing administration, maintenance, support, and enhancement of the company's core business applications - including Oracle E-Business Suite, Salesforce, and collaboration platforms such as Atlassian … be expected to perform system setup, configuration, performance tuning, and operational optimization. In addition to core r esponsibilities, the Senior Administrator will contribute to broader IT operations and demonstrate flexibility in taking on evolving roles within a small, agile team. This position is based in … Areas preferred. Strong computer and technical skills, especially with Linux, scripting. Any Oracle Application DBA Relevant Experience supporting Oracle E-Business applications and Database systems in fast paced environment is huge plus. Ability to administer, troubleshoot, backup, restore, move, upgrade, patch and tune JIRA, Confluence and Oracle Application databases More ❯

assistance available CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be … Our employees are not only part of history, they're making history. At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be … impossible. Our employees are not only part of history, they're making history. The Joint Tactical Ground Station (JTAGS) program within Northrop Grumman Defense Systems was developed and built by Northrop Grumman for the U.S. Army but has since transitioned to the USSF. JTAGS receives and processes data directly More ❯

in cyber and space defense, space exploration, hypersonic and nuclear deterrence and warfighter readiness. Visit for more details. Responsibilities Arcfield is looking for a Systems Administrator with prior Sponsor experience to provide Operations and Maintenance (O&M) support for the Sponsor's business systems environment (BSE … integrity, interface failures, and/or system operation anomalies that affected IT resource tracking, billing, and invoicing activities Ensure recovery processes are executed for systems/applications and data maintained within the BSE Ensure system/application vulnerabilities and risks are promptly addressed and mitigated Conduct and manage backup … and recovery tests for systems/applications and data hosted in the BSE Provide technical support and guidance to functional teams within the Sponsor's BE Ensure the System Security Plan is periodically evaluated and updated, including procedures for implementing and testing firewalls, SSL, x509, PKI certificates, system hardening More ❯

We are seeking a highly skilled and experienced Senior Systems Administrator to join our IT team. The ideal candidate will be responsible for managing, maintaining, and improving the organization's IT infrastructure, ensuring optimal performance, security, and reliability. This role involves collaborating with cross … IT staff. Provide Tier 1 (Help Desk) problem identification, diagnosis and resolution of problems Manage the daily activities of configuration and operation of IT systems Provide assistance to users in accessing and using IT systems Provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and … resolution of problems (U) Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices, mobile devices, etc. Provide support for the escalation and communication of status to agency management and internal customers Optimize More ❯

you want to be a part of? Come build your career with BAE Systems. Position Summary: As a Senior Closed Area Systems Administrator you will provide comprehensive technical and operational support for classified IT systems. This position requires a seasoned IT professional with expertise … in managing complex, air-gapped systems and lab environments in accordance with DoD and Intelligence Community security requirements. You will be responsible for the configuration, maintenance, and monitoring of secure networks and systems, including Lab-in-a-Box (LIB) environments, virtualization platforms, endpoint protection, and logging/alerting … GPOs) in Active Directory Support Splunk operations, including forwarder management, dashboard/report creation, and log analysis for auditing and threat detection Ensure all systems are compliant with applicable STIGs, RMF controls, and cyber hygiene policies Maintain system documentation, configuration change records, and contribute to audit readiness Collaborate with More ❯