Senior Systems Administrator
$80k - $90kSolar Energy Industries Association
Senior Systems AdministratorThe Solar Energy Industries Association (SEIA) is the national trade association for the solar and storage industry and represents more than 1,000 member companies and an industry workforce of more than 255,000 across the United States. SEIA is leading the transformation to a clean energy economy and is creating the framework for solar to reach 30% of U.S. electricity generation by 2030. We work with our member companies and strategic partners to advocate for policies that create jobs and shape fair market rules that promote competition and the growth of reliable, low-cost solar power.SEIA does this by supporting pro-solar policies at the state and federal level, developing cutting-edge market research, hosting educational events and webinars, and serving as the voice of the solar and storage industry.SEIA employees are passionate, forward-thinking leaders who start every day knowing that their work makes a difference. SEIA fosters an inclusive, lively company culture that values our employees' varied backgrounds and experiences and celebrates team success. The Association has earned numerous awards for its work and company culture and was named The Washington Post as a Top Workplace in 2023 and 2024 and by the Nonprofit Times as one of the "Best Nonprofits to Work For" in America in April 2022.The Senior Systems Administrator plays a hands-on role in keeping SEIA's technology environment reliable and secure. This position is ideal for someone who wants broad exposure across various technologies, cloud platforms, cybersecurity, and tools. The role works closely with internal teams, vendors, consultants, and implementation partners to solve problems, improve systems, evaluate new tools, and support technology projects that directly impact SEIA's staff and mission. It is a strong opportunity for a practical, curious IT professional who enjoys learning new technologies, taking ownership of core systems, and helping others work more effectively.Core duties and responsibilities include:Provide and manage day-to-day technical support for staff, including troubleshooting hardware, software, account access, meeting room, phone system, cloud application, and other end-user technology needs.Manage and support SEIA's core IT infrastructure, including Microsoft 365, Azure AD/Entra ID, cloud services, servers, workstations, networking equipment, firewalls, VPN, DNS, backup systems, and related security tools.Administer user accounts, permissions, access controls, and network resources in accordance with SEIA's security policies and business requirements.Monitor system performance, reliability, security, and availability across on-premise and cloud environments; proactively resolve issues and recommend improvements.Support and assist in managing the implementation of new technology solutions, upgrades, integrations, and infrastructure improvement.Maintain documentation, standard operating procedures, knowledge base content, asset records, and system configuration information.Identify opportunities to improve IT operations through automation, process simplification, system optimization, and improved administrative workflows.Coordinate with vendors, consultants, and internal stakeholders to troubleshoot issues, manage services, evaluate tools, and complete technology projects.Support IT asset management, hardware and software procurement, license tracking, expense monitoring, and annual budget planning.Provide technical guidance for team members, support key business events and perform other related duties as assigned, including limited after-hours support when necessary.Provide technical guidance and knowledge transfer to 3rd party service providers and implementation partners.Qualifications include:Minimum of 3-5 years of progressive IT experience, including systems administration, cloud administration, end-user support, infrastructure management, and cybersecurity operations.Strong hands-on experience administering Microsoft 365 suite of products, including Exchange Online, SharePoint, Teams, OneDrive, RingCentral, licensing, security settings, and user account management.Experience with Azure AD/Microsoft Entra ID, including identity management, MFA, conditional access, security groups, access reviews, and user administration.Experience with email security and protection platforms such as Microsoft Defender, Barracuda, and Proofpoint, including spam filtering, phishing protection, email continuity, archiving, and backup solutions.Experience managing network services that support end-user computing, including wired and wireless connectivity, Wi-Fi administration, network switches and protocols, print services, network access, and troubleshooting.Hands-on experience with endpoint management using Intune, software deployment, patching, technical documentation, vendor management, and cybersecurity best practices.Working condition:Position is full-time.This position is based in the Washington, D.C. office. SEIA employees in the Washington, D.C. region follow a hybrid remote and in-person office model. Employees are expected to work a minimum of 3 days a week in SEIA's offices.Minimal travel is required for this role (all-staff events and gatherings)Occasionally required to work after business hours to perform system maintenance, deployment, or support business events.Compensation range:$80,000-$90,000 annually, based on experience, with an excellent benefits package.Working at SEIA:SEIA welcomes different perspectives, identities, and backgrounds, working collaboratively in support of our mission, regardless of job function. We believe this creates a more resilient organization that supports a strong, equitable solar industry. SEIA envisions an industry that is committed to fostering a culture of inclusivity and respect for all.SEIA provides equal employment opportunities (EEO) to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, homelessness, or any other characteristic protected by applicable federal, state, or local laws. SEIA complies with applicable federal, state, and local laws governing nondiscrimination in employment in every location in which we employ staff. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.SEIA is an EVerify employer.
$92.3k - $166.85k
...Community customers as they address evolving national security challenges.About the OpportunityLeidos is seeking an experienced Senior System Administrator to support the implementation, operation, troubleshooting, and maintenance of IT systems and infrastructure. You will...SeniorFull time$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- ...ENS Solutions, LLC is seeking a senior technologist to plan and lead major technology assignments for DoD/IC projects. The role requires evaluating performance results and recommending changes to drive short-term growth and success. The candidate will act as a technical...SeniorTemporary work
- ...Please do not apply if you do not currently possess this level of clearance.Telework: NoneBasic Requirements:20 years experience as a system engineerBachelor's degree in a technical discipline 5 additional years of experience as a system engineer may be substituted for a...SeniorImmediate startRemote work
- ...Senior Systems AdministratorWe are hiring a Senior Systems Administrator to support mission-critical applications in a secure environment. This is an opportunity for an experienced systems professional with strong Linux administration expertise to work across modern and...SeniorFull time
$75k - $85k
...Senior Systems AdministratorTechFlow Inc. is an employee-owned company delivering mission-critical technology, engineering, and mission... ...federal government customers. We are seeking a Senior Systems Administrator to play a key role in a critical DOD program — powering the...SeniorRemote work- ...Senior Systems Administrator, Top Secret Security Clearance Required, Arlington, VAWe are seeking a Senior Systems Administrator to perform a wide variety of systems administration tasks. This could include installation, configuration, upgrades, and operational support...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- ...Relativity Senior Systems AdministratorEmployment Type: Full TimeDepartment: Legal/ITWe are seeking a Relativity Sr. Systems Administrator to join our team! You will handle a variety of projects to support and improve the organization's network systems.CGS brings motivated...SeniorWork at officeFlexible hours
- Senior Systems Administrator Saliense Consulting LLC Washington, District of Columbia, United States About this position About Saliense At Saliense, we are committed to fostering a culture of continuous learning and professional growth. Our employees are encouraged to...Senior
- ...experience utilizing Figma and Angular to build and design UI/UX.Responsible for installing, configuring, and maintaining operating system workstations and servers, including web servers, in support of business processing requirements.Performs software installations...Senior
- We’re looking for a Senior Systems Administrator to support mission-critical applications and infrastructure for the DIA. This is a hands‑on Linux administration role where deep experience supporting enterprise systems will be especially valuable. Oracle experience is...SeniorFull time
$100k - $115k
Title: Senior Cisco Systems Administrator Location: Remote Clearance: Public Trust Responsibilities Perform daily administration and monitoring of Cisco UCS domains, fabric interconnects, chassis, and blade servers Manage, maintain, and upgrade VMware vSphere, vCenter...SeniorRemote work- We are seeking an experienced Senior Systems Administrator to support the lifecycle sustainment and modernization of mission-critical education, learning, and training applications supporting a Government enterprise. This role is ideal for an experienced systems administrator...SeniorFull time
$130k - $140k
...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 numerous...SeniorFor contractors- 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
- ...McLean, VA . We currently have an immediate opening for a Sr. Systems Administrator to support our contract in Lanham, MD. Our government... ...requirement to provide support in Infrastructure Management for a Senior System Administrator, with strong Microsoft Hyper‑V...SeniorContract workWork at officeImmediate startRemote workMonday to Friday
$150k - $200k
MTSI is seeking a Senior Systems Administrator - COMSEC Specialist whose primary function will be to lead/support development, testing and integration of advanced communication systems. This position will be located in the Washington DC area.Your essential job functions...SeniorContract work- ...Job Description Job Description Description: The role of the System Administrator includes supporting the implementation, troubleshooting, and upkeep of Information Technology (IT) systems. This involves overseeing the IT system infrastructure and associated processes...Senior
$77.6k - $176k
Job Number: R0232223 System Administrator, Senior The Opportunity Your technical expertise makes the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting the Department of Defense? We're looking for a System...SeniorLocal area- SYSTEMS ADMINISTRATOR SENIOR Advance how our customers operate while you advance your career. Join GDIT as a Systems Administrator Senior and build an impactful career in enterprise IT, collaborating with people who are driven and resourceful like you. MEANINGFUL WORK...Senior
- ...paid holidays a year, including 2 personal holidays ~ Reimbursement for professional licensure Job Summary The Senior Systems Administrator ensures the reliability, performance, and security of our Windows infrastructure—both on-premises and in Azure. This...Senior
- 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
- 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
$101.92k - $131.04k
Senior Systems Administrator Employment Type: Full Time, Senior-level Department: Legal/IT 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...SeniorFull timeContract workFor contractorsWork at officeFlexible hours$164k - $200k
Belay Technologies is seeking a Senior System Administrator to join our intel team. You will support CNO Capabilities as a senior System Administrator and technical contributor responsible for sustaining and evolving a high-performance operational IT environment. This is...SeniorContract workWork at officeRelocation$78.6k - $160.2k
...training and more. Join us to drive positive, lasting change that moves missions and the government forward! You Are: The Senior Systems Administrator, oversees the management, security, and optimization of a mixed Windows and RedHat Linux environment hosted in AWS. This...SeniorLive inWork at officeLocal area- ...’s safety and security. Make an impact by using your expertise to protect our country from threats. Job Description Systems Administrator Maintains an organization's computer systems' workflows and is responsible for the upkeep, configuration and reliable operation...SeniorWork at officeLocal areaRemote work
$112k - $179k
Responsibilities Peraton Labs is seeking a poly cleared Senior Infrastructure and Systems Administrator to support cleared research and development efforts for a government customer in Maryland. This role will support the implementation, maintenance, security, and operational...SeniorFull timeContract workFor subcontractorRemote workRelocation packageShift work$116.35k - $210.33k
...customers as they address evolving national security challenges.About the OpportunityLeidos is seeking a highly experienced Senior System/Network Administrator - Systems Integration to support the implementation, operation, troubleshooting, and maintenance of complex IT...SeniorFull time
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