Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior IT Administrator

$110k - $120k

Revolutional

Revolutional delivers advanced technology solutions and mission support to federal agencies across civilian, health, and national security environments. We apply modern capabilities, including AI/ML, cloud, cybersecurity, and IT modernization to solve complex challenges, enable faster and more secure operations, and drive measurable mission outcomes. We are redefining how federal technology gets built and delivered by operating with a product mindset, prioritizing speed, ownership, and execution over bureaucracy. Description Title: Senior IT Administrator Location: McLean, VA - Onsite 5 days/week Terms: Full-time Salary: $110-$120k DOE Position Description As Senior IT Administrator at Revolutional, you own the internal technology environment for a growing federal technology company operating out of McLean, VA. This is not a ticket queue role. You are the senior IT practitioner in the building - the person leadership turns to when something needs to get done, a system needs to be evaluated, or a technology decision needs a trusted technical opinion. You bring 5 or more years of hands-on IT experience across systems administration, infrastructure, endpoint management, and SaaS platform operations. You are equally capable of resolving a complex hardware or software issue and thinking strategically about how Revolutional’s internal IT environment should evolve as the company grows. You work closely with leadership, take initiative without being asked, and hold yourself to a high standard of documentation and operational discipline. What You Will Own Revolutional’s internal IT environment: endpoints, infrastructure, systems, and user support across a 600+ employee organization Hardware and software ticket resolution, including escalated and complex issues referred by or involving leadership Identity and access management across Active Directory, Azure AD, M365, SharePoint, and SSO platforms Office network infrastructure for the McLean headquarters Endpoint security, patching, and asset lifecycle management Core business systems administration and vendor relationships IT process documentation, knowledge base maintenance, and onboarding/offboarding workflow ownership Responsibilities Serve as the senior internal IT resource and primary point of escalation for hardware, software, network, and access issues across the organization; provide direct support to leadership and staff with equal professionalism and urgency Administer and optimize identity and access management across Active Directory, Azure AD, Microsoft 365, SharePoint, and related platforms; manage user lifecycle from onboarding through offboarding with precision and security discipline Own office network infrastructure for the McLean headquarters: switches, Wi‑Fi, VPN, and connectivity; troubleshoot issues proactively and maintain reliable, secure network operations Manage endpoint lifecycle: image, configure, and deploy laptops and desktops; maintain patching cadence, endpoint security tools, and asset inventory across all company devices Administer core business systems including M365, SharePoint, ATS/HRIS platforms (Greenhouse, Paylocity, or equivalent), and other SaaS tools in partnership with HR, Recruiting, and Operations Manage hardware procurement, ISP relationships, and managed service vendors; make cost-conscious, operationally sound decisions on behalf of the company Lead IT components of onboarding and offboarding programs; deliver onboarding training for new hires and ensure a consistent, professional experience Manage and maintain conference room AV equipment, peripherals, and office technology infrastructure Develop and maintain IT documentation: standard operating procedures, runbooks, knowledge base articles, and system configuration records Evaluate new tools and technologies; provide leadership with informed recommendations on IT investments, security improvements, and infrastructure upgrades Partner with leadership on IT strategy: contribute to roadmap discussions, identify gaps in the current environment, and take ownership of improvement initiatives Provide leadership for the expansion and adoption of security tools (i.e., Microsoft Defender, Sentinel, and Intune). What You Bring (Requirements) Bachelor’s degree in Information Technology, Computer Science, or related field (or equivalent experience) 5 or more years of hands‑on experience in IT systems administration, infrastructure, or a senior hybrid helpdesk/admin role Demonstrated experience supporting a mid-size organization, or larger, with end‑to‑end IT ownership, not solely ticket resolution Technical & Domain Capabilities Proficiency administering Microsoft 365 and Azure Active Directory at an organizational level: licensing, security policies, groups, and compliance features Hands‑on experience with endpoint management: laptop imaging, device deployment, MDM tools, patching, and asset inventory. Prefer knowledge with Intune and JAMF. Working knowledge of office network infrastructure: managed switches, enterprise Wi‑Fi, VPN configuration, and basic network troubleshooting Experience administering SSO, identity platforms, and managing user access governance Familiarity with SaaS business system administration: ATS, HRIS, project management, and collaboration platforms Proficiency in both Windows and macOS environments Experience with SharePoint administration: site management, permissions, and basic configuration Strong documentation discipline: you leave systems and processes better documented than you found them Core Strengths Operates with senior‑level ownership: you don’t wait to be told what needs attention, you identify it and address it Trusted by leadership: you communicate clearly, follow through consistently, and handle sensitive access and systems with discretion Technically broad and operationally reliable - you cover the full IT stack without gaps and keep the environment running with minimal noise Continuously improving: you document what you do, identify what could work better, and drive incremental improvements to the IT environment over time Nice to Have (Differentiators) Experience supporting a GovCon or federal contracting environment, including familiarity with security and compliance requirements CompTIA Security+, Network+, or Microsoft certifications (MS-900, AZ-900, or higher) Experience evaluating or implementing new IT tools, conducting vendor assessments, or contributing to IT roadmap planning Familiarity with cybersecurity best practices: zero trust principles, endpoint hardening, and security awareness program support Experience with ITSM platforms or structured ticketing systems (ServiceNow, Jira Service Management, or equivalent) Here At Revolutional We Are Pleased To Have Been Repeatedly Recognized For Our Outstanding Work Culture, The Innovative Work We Do, And The Employees On Our Team Who Make a Difference Each Day. Some Of These Recognitions Include Recognized as a Top 20 "Best Place to Work in Virginia" Recipient of Department of Labor's HireVets Gold Medallion Great Place to Work Certification for five years running A Virginia Chamber of Commerce Fantastic 50 company A Northern Virginia Technology Council Tech 100 company Inc. 5000 list of fastest growing companies for eleven years Two-time SBA SBIR Tibbett's Award winner Virginia Values Veterans (V3) Certification We recognize that every bit of our success is the result of our teams of hard‑working, motivated, and innovative professionals who are proud to call themselves part of the Revolutional family! In addition to competitive compensation, a family‑focused culture, and a dynamic, productive work environment, we offer all full‑time employees a variety of benefits including, but not limited to Traditional and HSA- eligible medical insurance plans 100% employer-paid dental and vision insurance options 100% employer-sponsored STD, LTD, and life insurance 5% 401(k) company matching Flexible-schedules and teleworking options Paid holidays and PTO Accrual Plans Paid Parental Leave Professional development and career growth opportunities Team and company‑wide events, recognition, and appreciation– and so much more! Revolutional is an Equal Opportunity Employer providing equal employment opportunity to all employees and applicants for employment without regard to race, color, religion, national origin, age, gender, gender identity, sexual orientation, disability, or genetics. Revolutional does and will take affirmative action to employ and advance in employment individuals with disabilities and protected veterans. To perform the above job successfully, an individual must possess the knowledge, skills, and abilities listed; meet the education and work experience required; and must be able to perform each essential duty and responsibility satisfactorily. Other duties in addition to those listed may be assigned as necessary to meet business needs. Reasonable accommodation will be made to enable an applicant with a disability to successfully apply for and/or perform the essential duties of the job. If you are in need of an accommodation, please contact View email address on click.appcast.io. #J-18808-Ljbffr Revolutional

Vacancy posted 4 days ago
Similar jobs that could be interesting for youBased on the Senior IT Administrator in Mc Lean, VA vacancy
  • $119.7k

     ...Summary 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... 
    Senior

    Chenega Agile Real Time Solutions, LLC

    Arlington, VA
    4 days ago
  •  ...BA/BS degree with 5+ years of relevant experience; or Masters degree with 3+ years of experience. Proven experience in system administration, specifically with Linux, including RHEL and Ubuntu, and UNIX in classified environments. Some Windows server administration experience... 
    Senior

    Jobtailor

    Vienna, VA
    1 day ago
  • $119k - $198.9k

    Position Summary Salesforce Senior Consultant, Functional Transformation Our Deloitte Customer team empowers organizations to build deeper relationships with customers. This includes supporting their marketing, sales, and service organizations. Post sales activities... 
    Senior
    Local area
    Visa sponsorship

    Deloitte

    McLean, VA
    2 days ago
  • $110.7k - $218.3k

     ...that affect customers, partners, constituents, and the workforceRecruiting for this role ends on December 31, 2026.Work you'll doAs a Senior Consultant, Transformation on the Functional Transformation team, you will be responsible for… Supporting transformation... 
    Senior
    Local area

    Deloitte

    McLean, VA
    2 days ago
  • 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... 
    Senior
    Full time
    Contract work
    For contractors
    Work at office

    CGS Federal (Contact Government Services)

    Arlington, VA
    2 days ago
  • 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... 
    Senior
    Full time
    Temporary work
    Work at office

    Tecolote Research

    Arlington, VA
    4 days ago
  •  ...protect our country from threats. Job Description Systems Administrator Maintains an organization's computer systems' workflows and...  ...networks as needed. Assisted with accounting for systems on IT hand receipt. Reported network outages and monitored trouble... 
    Senior
    Work at office
    Local area
    Remote work

    General Dynamics Information Technology

    Arlington, VA
    27 days ago
  • $75k - $85k

     ...services to federal government customers. We are seeking a Senior Systems Administrator to play a key role in a critical DOD program, powering the...  ...administer, maintain, monitor, and optimize the enterprise IT infrastructure supporting the customer’s platform, ensuring... 
    Senior
    Temporary work
    Immediate start
    Remote work

    TechFlow

    Arlington, VA
    21 hours ago
  •  ...Operating within the Aireon Network Engineering Group, the Senior Systems Administrator is responsible for helping to set up, maintain and manage Aireon...  ...studies for evaluating alternative designs based upon IT security risks Creates systems administration manuals and procedures... 
    Senior
    Permanent employment
    Full time
    Temporary work
    For subcontractor
    Work at office
    Remote work
    Flexible hours

    Aireon LLC

    Mc Lean, VA
    1 day ago
  •  ...Overview Senior Discovery IT System Administrator — Employment Type: Full-Time, Executive-Level. Department: Legal. 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... 
    Senior
    Full time
    For contractors
    Flexible hours

    CGS Federal (Contact Government Services)

    Fairfax, VA
    1 day ago
  • $120k

     ...Overview Senior Network Administrator Arlington, VA Are you ready to enhance your skills and build your career in a rapidly evolving business...  .... Qualifications Bachelor's in Computer Science, IT, or related field OR Associate's with 5+ years of... 
    Senior
    Local area

    SecuriGence LLC

    Arlington, VA
    1 day ago
  • $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... 
    Senior
    Contract work

    ECS Federal

    Washington DC
    3 days ago
  • $120k - $135k

    Job DescriptionEverforth ECS is seeking a Senior Systems Administrator (Top Secret Cleared)to work in our Washington, DC office. Please Note: This...  ...of system administration, endpoint support, or enterprise IT operations experience.Experience with Windows Server, Linux... 
    Senior
    Contract work
    Work at office

    ECS Federal

    Washington DC
    4 days ago
  • $120k - $200k

     ...organization, are curious and eager to learn, and want to help drive our programs forward. Scout is seeking a skilled Senior IT Systems Administrator to lead the design, implementation, and management of our internal IT systems as we transition from third-party managed... 
    Senior
    Permanent employment
    Remote work
    Work from home
    Relocation
    Flexible hours

    Scout Space

    Reston, VA
    a month ago
  •  ...Role Summary We are seeking an experienced Senior Salesforce Administrator responsible for platform governance, configuration, and optimization. The role focuses on ensuring data integrity, system reliability, and alignment with business needs while proactively managing... 
    Senior
    Full time

    PB consulting

    McLean, VA
    1 day ago
  • 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

    ANALYTICA

    Silver Spring, MD
    2 days ago
  • $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...  ...of proven experience as a System Administrator or similar IT infrastructure role.Hands-on experience supporting enterprise data... 
    Senior
    Full time
    Local area

    MetroStar Systems

    Washington DC
    2 days ago
  • $102.85k - $139.15k

    Systems Administrator (Experienced or Senior)Company:The Boeing CompanyBoeing Defense, Space & Security (BDS), Maritime and Intelligence Systems (M&IS)...  ...and tracking tasks in JiraHolds cloud, INFOSEC, or recent IT certificationsPrevious shift-work experienceConflict of... 
    Senior
    Permanent employment
    Full time
    Visa sponsorship
    Work visa
    Relocation package
    Flexible hours
    Shift work
    Night shift

    Boeing

    Herndon, VA
    3 days ago
  • $105k - $155k

     ...Warfare Systems comprises cyber and mission IT; electronic warfare; and C5ISR systems....  ...contacted about an opportunity. Systems Administrator 3: $105,000 - $145,000Systems Administrator...  ...0,000What you will doYou will serve as a senior technical resource responsible for... 
    Senior
    Full time
    Work experience placement
    Local area
    Worldwide

    HII Mission Technologies Division

    Springfield, VA
    21 hours ago
  •  ...Job Description Job Description Job Title: Senior Network AdministratorLocation: BUMED HQ (DHHQ Facility), 7700 Arlington Blvd...  ..., VA 22042Description: CORTEK is seeking a Senior Network Administrator to provide Network Operations (NetOps) support for the Bureau... 
    Senior
    For contractors
    Work experience placement
    Work at office
    Local area

    Cortek Inc

    Falls Church, VA
    5 days ago
  •  ...Mission Technologies, a division of HII, is seeking a senior Systems Administrator to secure and optimize Windows and Linux environments supporting critical enterprise and mission workloads. You will apply cross‑platform expertise to ensure systems are reliable, performant... 
    Senior

    Mission Technologies, a division of HII

    Springfield, VA
    4 days ago
  •  ...General Dynamics - IT (GDIT) is seeking a Systems Administrator to support enterprise IT operations in an onsite capacity in Washington, DC. The role emphasizes maintaining IT infrastructure, software deployments, patch management, and user support to keep systems performing... 
    Senior

    General Dynamics

    Washington DC
    2 days ago
  • $77.6k - $176k

    DevOps Engineer and System Administrator, SeniorThe Opportunity:Are you looking for an opportunity to leverage your DevOps and system administration expertise in a high impact role? We’re building and launching capability for Enterprise-web based systems in cybersecurity... 
    Senior
    Full time
    Contract work
    Part time
    Work at office
    Local area
    Remote work

    Booz Allen Hamilton

    McLean, VA
    3 days ago
  •  ...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... 
    Senior
    Local area

    L3Harris Technologies

    Washington DC
    4 days ago
  •  ...BA/BS degree with 5+ years of relevant experience; or Masters degree with 3+ years of experience. Proven experience in system administration, specifically with Linux, including RHEL and Ubuntu, and UNIX in classified environments. Some Windows server administration experience... 
    Senior

    Jobtailor

    Reston, VA
    21 hours ago
  • $120k - $135k

     ...Job Description Everforth ECS is seeking a cleared Senior Systems Administrator (Top Secret Cleared) for our Washington, DC office. The role involves...  ...of system administration, endpoint support, or enterprise IT operations experience. Experience with Windows Server,... 
    Senior
    Work at office
    Local area

    ECS Limited

    Washington DC
    4 days ago
  • $135k - $216k

    ResponsibilitiesWe are seeking a Senior Cloud Systems Administrator in Herndon, VA to support the SITE III DO contract within our National Programs Business...  ...capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions... 
    Senior
    Full time
    Contract work
    Flexible hours
    Shift work

    Peraton Corporation

    Herndon, VA
    4 days ago
  •  ...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
    For contractors
    Local area

    analyticallc

    Silver Spring, MD
    4 days ago
  • $101.92k - $131.04k

     ...Senior Systems Administrator Employment Type: Full Time, Senior-level Department: Legal/IT CGS is seeking a Senior Systems Administrator...  ...instruction/policy. - Typically reports to the Contractor IT Manager, to Systems Manager, or to Lead Project Manager.... 
    Senior
    Full time
    Contract work
    For contractors
    Work at office
    Flexible hours

    Contact Government Services, LLC

    Rockville, MD
    4 days ago
  •  ...Senior Systems Administrator II Employment Type: Full Time, Senior-level CGS is seeking a Senior Systems Administrator to join our team supporting...  .../policy. - Typically reports to the Contractor IT Manager, to Systems Manager, or to Lead Project Manager.... 
    Senior
    Full time
    Contract work
    For contractors
    Work at office
    Flexible hours

    Contact Government Services LLC

    Rockville, MD
    2 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior IT Administrator. Be the first to apply!