Senior Systems Administrator
$159kChenega MIOS SBU
Overview Senior Systems Administrator Arlington, VA Are you ready to enhance your skills and build your career in a rapidly evolving business climate? Are you looking for a career where professional development is embedded in your employer’s core culture? If so, Chenega Military, Intelligence & Operations Support (MIOS) could be the place for you! Join our team of professionals who support large-scale government operations by leveraging cutting-edge technology and take your career to the next level! We deliver essential technology services to our customers in support of their missions to sustain the national security and economic interest of our nation. SecuriGence is seeking a talented Senior Systems Administrator to help contribute to our success. Come help us solve problems with Innovation through Intelligence. Responsibilities Lead the administration, maintenance, and optimization of enterprise Windows and Linux server environments. Perform advanced system capacity planning, performance analysis, and resource management to ensure infrastructure scalability and reliability. Design, deploy, and manage complex virtualized environments utilizing VMware technologies. Serve as the technical lead for system architecture, upgrades, migrations, and modernization initiatives. Troubleshoot and resolve complex infrastructure, operating systems, and application issues across enterprise environments. Install, configure, and maintain Windows Server and Linux operating systems in accordance with organizational requirements and industry best practices. Apply operating system, application, and security patches to maintain compliance, security, and operational effectiveness. Lead vulnerability remediation efforts and ensure systems remain compliant with DISA STIGs, DoD cybersecurity requirements, and organizational security policies. Monitor enterprise systems and infrastructure to ensure continuous availability, performance, and operational readiness. Develop and implement backup, recovery, business continuity, and disaster recovery strategies. Automate administrative tasks and system management functions using scripting and automation tools such as PowerShell, Bash, or Ansible. Develop, maintain, and enforce technical standards, policies, procedures, and system documentation. Mentor junior administrators and provide technical guidance across infrastructure-related projects and operational activities. Collaborate with network, cybersecurity, cloud, and application teams to design and implement integrated enterprise solutions. Evaluate emerging technologies and recommend improvements to enhance system performance, security, and operational efficiency. Support after-hours maintenance, troubleshooting, and incident response activities as required. Perform additional duties assigned to support team and organizational objectives. Qualifications Bachelor's degree in Information Technology, Computer Science, Information Systems, Engineering, or related technical discipline 7+ years’ of relevant experience DOD IAT Level II Certification is required. DOD TS/SCI with the ability to obtain CI poly. Knowledge, Skills and Abilities: Experience with Windows and Linux operating systems. How you’ll grow At Chenega MIOS, our professional development plan focuses on helping our team members at every level of their careers to identify and use their strengths to do their best work every day. From entry-level employees to senior leaders, we believe there’s always room to learn. We offer opportunities to help sharpen skills in addition to hands-on experience in the global, fast-changing business world. From on-the-job learning experiences to formal development programs, our professionals have a variety of opportunities to continue to grow throughout their careers. Benefits At Chenega MIOS, we know that great people make a great organization. We value our team members and offer them a broad range of benefits. Learn more about what working at Chenega MIOS can mean for you. Chenega MIOS’s culture Our positive and supportive culture encourages our team members to do their best work every day. We celebrate individuals by recognizing their uniqueness and offering them the flexibility to make daily choices that can help them be healthy, centered, confident, and aware. We offer well-being programs and continuously look for new ways to maintain a culture where we excel and lead healthy, happy lives. Corporate citizenship Chenega MIOS is led by a purpose to make an impact that matters. This purpose defines who we are and extends to relationships with our clients, our team members, and our communities. We believe that business has the power to inspire and transform. We focus on education, giving, skill-based volunteerism, and leadership to help drive positive social impact in our communities. Learn more about Chenega’s impact on the world. Chenega MIOS News- Tips from your Talent Acquisition Team We want job seekers exploring opportunities at Chenega MIOS to feel prepared and confident. To help you with your research, we suggest you review the following links: Chenega MIOS web site - Glassdoor - LinkedIn - Facebook - Estimated Salary/Wage USD $159,000.00/Yr. Up to USD $175,000.00/Yr. #J-18808-Ljbffr
$123k - $136k
Job DescriptionEverforth ECS Federal is seeking a Senior Systems Administrator to support a mission-focused federal IT program in Washington DC.Please Note: This position is contingent upon contract award.Salary Range: $123,000 - $136,000Join Everforth ECS Federal to keep...SeniorContract work$120k - $135k
Job DescriptionEverforth ECS is seeking a Senior Systems Administrator (Top Secret Cleared)to work in our Washington, DC office. Please Note: This position is contingent upon contract award.We are seeking a cleared System Administrator to support secure system administration...SeniorContract workWork at office$170k - $219k
As a Sr. Systems Administrator III, you will work as part of a collaborative and high-performing team providing hands-on expertise to deliver technical solutions within the highest levels of the federal government by designing, implementing, administering, and supporting...SeniorFull timeLocal area- ...Electrosoft Services, LLC seeks a Senior Systems Administrator to design, implement and manage diverse software solutions for federal customers. You will install and maintain systems, develop executive dashboards, and present findings to senior management in a fast-paced...Senior
- ...comprehensive and well-structured, effectively outlining the responsibilities, requirements, benefits, and application process for the Senior Airgap System Admin role. It uses appropriate HTML tags (p, h3, ul, li) to enhance readability and organization. However, there are minor...Senior
- ...Title: Senior Systems Administrator Location: Fort Lesley J. McNair, 300 5th Avenue, Washington, DC 20319 (Hybrid) Duration: Long term Certification: CompTIA Security+ CE and Computing certification Clearance: Active Secret or above Summary:...Senior
- ...A government services contractor in Arlington, Virginia is seeking a Relativity Sr. Systems Administrator to facilitate government innovation through IT solutions. The ideal candidate will design and maintain systems using Relativity and AWS, alongside ensuring compliance...SeniorFull timeFor contractorsFlexible hours
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- ...L3Harris Technologies in Washington, DC, seeks a Senior Specialist, Systems Administration to strengthen and modernize core IT services across the region. You will design, implement, and operate hybrid global network infrastructure, automate provisioning with Ansible/Terraform...SeniorLocal area
$100k
...sustaining, operating, and improving essential government systems and services, with proven operational excellence, and a commitment... ...position, and receipt of authorization to proceed. The Senior Systems Administrator supports IT operations by designing, automating, testing,...SeniorContract workRemote work$130k - $140k
...If we’ve described you and your dream workplace, please apply and share in the many benefits and opportunities we offer. Senior Systems Administrator Seven (7) years of progressive experience in the field of Information Processing, six of which are specialized in...SeniorFor contractors- ...cultures that not only impact their people but also make a meaningful difference in the community. About You You are a Senior‑Level Systems Administrator with experience designing, implementing, securing, and supporting enterprise IT infrastructure in commercial,...Senior
$120k - $135k
...Job Description Everforth ECS is seeking a cleared Senior Systems Administrator (Top Secret Cleared) for our Washington, DC office. The role involves secure system administration, endpoint management, user support, patching, monitoring, documentation, and operational...SeniorWork at officeLocal area- ...Senior Systems Administrator II Employment Type: Full Time, Senior-level 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, and...SeniorFull timeContract workFor contractorsWork at officeFlexible hours
- ...Position Overview JDEIS databases and systems must stay current, backed up, and available to support doctrine and education work. The Senior Systems Administrator provides database and systems administration across JDEIS applications, including backups after major updates...SeniorTemporary workFlexible hours
- ...technical planning, testing, and execution of complex system upgrades, including operating systems,... ...advisories) and ensure timely remediation. - Provide senior-level technical support and guidance to system administrators, serving as an escalation point for complex...SeniorMinimum wageContract workTemporary workWork experience placementRemote work
- ...Senior Systems Administrator Employment Type: Full Time, Senior-level 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, and creative...SeniorFull timeContract workFor contractorsWork at officeFlexible hours
$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...SeniorTemporary workImmediate startRemote work$117.45k - $169.65k
...Senior Relativity Senior Systems Administrator Senior Relativity Senior Systems Administrator 3 weeks ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. CGS Federal (Contact Government Services) provided pay range This...SeniorFull timeWork at officeFlexible hours- ...August 2025 Application Deadline: 29 August 2025 Department: Systems Engineering Location: Headquarters Description Aireon... ...Operating within the Aireon Network Engineering Group, the Senior Systems Administrator is responsible for helping to set up, maintain and manage...SeniorPermanent employmentFull timeTemporary workFor subcontractorWork at officeRemote workFlexible hours
- ...package. Qualifications Minimum of seven (7) years of experience in installing, configuring and maintaining UNIX/LINUX/MS operating systems and Cloud Environment. Analyzes and resolves problems associated with the operating system's servers, hardware, applications, and...Senior
- Senior Systems Administrator - Security Clearance Duration: Full time, salaried opportunity Government Security Clearance Requirements: Government security clearance required. TS/SCI. Must possess active clearance. Security+ certification required. Description : The...SeniorFull time
- Senior Systems Administrator II Employment Type: Full Time, Senior-level - Department: Legal/IT Overview CGS is seeking a Senior Systems Administrator to support technical initiatives for a large Federal agency, ensuring systems meet client needs and comply with policy...SeniorFull timeContract workFlexible hours
- Employment Type Full Time, Senior-level Department Legal/IT Overview 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, and creative people...SeniorFull timeContract workFor contractorsWork at office
- 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...SeniorFull timeTemporary workWork at office
- ...Senior Discovery IT System Administrator Employment Type: Full-Time, Executive-Level CGS is seeking a dedicated Senior Discovery IT System Administrator to join a fast-paced and hard-working team to assist with any legal accounts. As a Senior Discovery IT System...SeniorFull timeFor contractorsFlexible hours
$120k - $165k
Job DescriptionECS is seeking an experienced Sr. System Administrator to work remotely providing scientific computing support for the work performed under this contract for NIH NIAID Enabling and Advancing Technologies (NEAT). This engagement supports the Scientific Computing...SeniorContract workRemote work- Analytica is seeking a seasoned and adaptable Senior System Administrator to join our infrastructure team in supporting an innovative federal mission. In this role, you will provide high-level technical leadership, engineering expertise, and strategic vision to optimize...Senior
$77.6k - $176k
System Administrator, SeniorThe Opportunity: Your technical expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve a critical technology supporting the Department of Defense (DoD)? We’re looking for a System...SeniorFull timeContract workPart timeWork at officeLocal areaRemote work$102.85k - $139.15k
Systems Administrator (Experienced or Senior)Company:The Boeing CompanyBoeing Defense, Space & Security (BDS), Maritime and Intelligence Systems (M&IS), seeks a System Administrator (Experienced or Senior) (Shift Work) to join our Mission Operations team in Herndon, VA...SeniorPermanent employmentFull timeVisa sponsorshipWork visaRelocation packageFlexible hoursShift workNight shift
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