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

System Administrator

Straffic

Job Description

Job Description

Salary:

Job Title:System Administrator
Department:Management
Reports To:Head of Corporate Services
Location:Vienna, Virginia
FLSA Status:Exempt
Employment Type:Full-time
Experience Level:Mid-level (35 years)

Position Summary

The System Administrator is responsible for maintaining, monitoring, and optimizing the companys IT infrastructure, systems, networks, and security environment. This role ensures stable system performance, secure access, and efficient IT operations while supporting employees with day-to-day technical needs. The ideal candidate has hands-on experience in system administration, cloud platforms, cybersecurity fundamentals, and troubleshooting within a small-to-mid-size enterprise environment.

Responsibilities

Infrastructure & Systems Management

  • Manage, monitor, and maintain on-premises and cloud-based server environments.
  • Support and configure network equipment including routers, switches, firewalls, VPNs, and Wi-Fi systems.
  • Install, configure, and maintain desktops, laptops, mobile devices, printers, and IT peripherals.
  • Administer Microsoft 365, Azure AD, Google Workspace, or equivalent cloud platforms.
  • Perform system updates, patch management, and configuration improvements.

Cybersecurity & Compliance

  • Monitor and respond to security incidents, alerts, and vulnerabilities.
  • Manage endpoint protection, email security solutions, MFA, and firewall policies.
  • Conduct security assessments, enforce security standards, and support compliance frameworks (SOC, NIST, ISO preferred but not required).
  • Maintain backup, disaster recovery, and business continuity procedures.
  • Manage identity and access control including user provisioning and permission reviews.

IT Support & Operations

  • Provide Tier 1/2 technical support for hardware, software, and network-related issues.
  • Manage IT asset inventory, software licensing, hardware procurement, and vendor coordination.
  • Document IT procedures, troubleshooting steps, and user guides.
  • Support onboarding/offboarding processes including account setup, access management, and device preparation.

Project & Cross-Functional Support

  • Support IT infrastructure upgrades, cloud migration initiatives, and security enhancement projects.
  • Collaborate with headquarters and cross-border IT teams to align global standards and best practices.
  • Assist with technical documentation for RFP/RFI submissions related to IT or security requirements.

Basic Qualifications

  • 3+ years of hands-on experience in system administration or IT infrastructure
  • Experience with Microsoft 365, Azure AD, or similar platforms
  • Knowledge of networking fundamentals (TCP/IP, DNS, DHCP, VPN, firewalls)
  • Experience with endpoint protection and basic cybersecurity practices
  • Strong troubleshooting and problem-solving skills
  • Ability to manage multiple priorities in a fast-paced environment

Preferred Qualifications

  • Experience with scripting (PowerShell, Bash, Python)
  • Certifications: CompTIA Network+, Security+, Microsoft, or equivalent
  • Experience in small-to-mid enterprise environments or multi-site organizations

Vacancy posted more than 2 months ago
Similar jobs that could be interesting for youBased on the System Administrator in Vienna, VA vacancy
  •  ...IT Systems Administrator Location: Fairfax, VA (Onsite) Duration: Long Term Contract Clearance Requirement: Must be a U.S. Citizen Hiring Process: Phone Screen → Video Interview Job Summary We are seeking an experienced IT Systems Administrator to join a critical... 
    Suggested
    Long term contract
    Contract work

    Kaav Inc.

    Fairfax, VA
    4 days ago
  •  ...System Administrator The System Administrator provides system administration for all systems and applications supported by security guidance, orders and directives, identifying and remediating vulnerabilities, implementing and testing security controls, assisting with... 
    Suggested
    Temporary work
    Immediate start
    Flexible hours

    Integral Federal

    McLean, VA
    4 days ago
  •  ...project goals and objectives are met. Oversee the maintenance of systems and networks, while providing customers with insight into...  ...standards and best practices for network security and system administration. Conduct regular project status meetings and provide updates... 
    Suggested
    Flexible hours

    Level Up

    McLean, VA
    1 day ago
  •  ...Overview VTG is seeking a skilled Systems Administrator to manage, maintain, and support enterprise IT infrastructure. This role is responsible for ensuring the reliability, security, and performance of servers, networks, and systems while supporting day-to-day operations... 
    Suggested

    VTG

    McLean, VA
    5 days ago
  •  ...Masonbyte is seeking to fill a System Administrator position for our customer in McLean, VA . At Masonbyte, we strive to provide the next generation of cutting-edge technologies. Our growth means exciting career opportunities for talented professionals in engineering... 
    Suggested
    Permanent employment

    iQuasar

    McLean, VA
    4 days ago
  •  ...What You'll Bring • 5-10+ years of experience in server maintenance and administration. • Expertise in Azure operations and maintenance. • Strong knowledge of Windows Server (2008R2, 2016), SQL Server (2014/2019), IIS, ColdFusion, and Node.js. • Experience working... 

    RIT Solutions, Inc.

    McLean, VA
    4 days ago
  •  ...Senior Systems Administrator Location US- ID 2026-1547 Remote Yes Overview JOB TITLE: Senior Systems Administrator AGENCY SUPPORTED: U.S. Department of Justice (DOJ) - MEGA 6 Automated Litigation Support POSITION TYPE:... 
    Full time
    Contract work
    For contractors
    Work at office
    Remote work
    Work from home
    Home office
    Flexible hours

    ITC Federal, Inc

    Fairfax, VA
    1 day ago
  •  ...System Administrator Immediate need for a talented System Administrator. This is a 06+ Months Contract opportunity with long-term potential and is located in Richmond, VA/McLean, VA (Hybrid). Job ID:25-67511 Pay Range: $60 - $65/hour. Employee benefits include,... 
    Contract work
    Immediate start

    Pyramid Corporation

    McLean, VA
    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 a wide-ranging technical support initiative for a large Federal agency. CGS brings motivated, highly skilled, and... 
    Full time
    Contract work
    For contractors
    Work at office
    Flexible hours

    Contact Government Services LLC

    Fairfax, VA
    5 days ago
  • $110k - $145k

     ...Systems Administrator Boston, MA We have TWO openings for a Systems Administrator that can be based in one of our many office locations: Boston, MA - Charlotte, NC - Atlanta, GA - Asheville, NC - New York City, NY - Westwood, NJ - McLean, VA Modera Wealth Management... 
    Work experience placement
    Work at office
    Local area
    Remote work
    Relocation

    Modera Wealth Management

    McLean, VA
    3 days ago
  •  ...Job Title: Systems Administrator Location: Fort Belvoir, VA Salary: 100-150k TS/SCI clearance required Responsibilities: Troubleshoot, maintain integrity and configure components along with implementing operating systems enhancements to improve... 
    Permanent employment
    Contract work
    Work experience placement
    Work at office

    NSC

    McLean, VA
    5 days ago
  •  ...System Administrator We are seeking a proactive and detail-oriented System Administrator to join our team and help maintain the stability, security, and performance of our IT infrastructure. In this role, you will be responsible for managing servers, networks, and... 
    Temporary work
    Immediate start
    Flexible hours

    Cymertek

    McLean, VA
    3 days ago
  • $120k - $160k

    DescriptionLinux System AdministratorAltamira Technologies has a long and successful history providing innovative solutions throughout...  ...: Chantilly, VAThe Role: Altamira requires Linux system administration support for the development, testing, deployment, operation, and... 
    Worldwide

    Altamira Technologies Corporation

    McLean, VA
    2 days ago
  • $90.3k - $189.6k

    Job Title: Linux Systems AdministratorJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS...  ...: None* * *The Opportunity:CACI is seeking a Linux Systems Administrator to support a long term, multi-year, high performing program. A... 
    Contract work
    Work experience placement
    Flexible hours

    CACI International

    McLean, VA
    1 day ago
  • $125k - $200k

    Summary The MIL Corporation is seeking a Systems Administrator with TS/SCI, FS (Systems Administration, Associate) to support a federal government client in McLean, VA. The Systems Administrator shall support the day-to-day operations of computer systems. This support includes... 
    Full time
    Contract work
    Work experience placement
    Remote work

    MIL Corporation

    Tysons Corner, VA
    1 day 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... 
    Full time
    Contract work
    Part time
    Work at office
    Local area
    Remote work

    Booz Allen Hamilton

    McLean, VA
    5 hours ago
  • Overview Freedom Technology Solutions Group is looking for a Linux System Administrator (SA) to join our team at a customer site in McLean, VA to support a mission‑critical geospatial data visualization application. The Linux SA will be responsible for the day‑to‑day operation... 
    Work at office
    Flexible hours
    Night shift

    (EDO) Entertainment Data Oracle, Inc.

    Mc Lean, VA
    2 days ago
  • $62k - $141k

    SAS Architect & System AdministratorThe Opportunity: We are seeking an experienced Senior SAS Platform Architect & Administrator with a demonstrated track record supporting Department of Veterans Affairs (VA) enterprise data and analytics environments. You will leverage... 
    Full time
    Contract work
    Part time
    Work at office
    Local area
    Remote work

    Booz Allen Hamilton

    McLean, VA
    5 hours ago
  • The Senior Systems Administrator (Okta) is responsible for the stable operation, administration, and maintenance of the DLA Okta environments, including user management, configuration, integration, and Tier III technical support. This role ensures secure access and optimal... 
    Local area

    Ariel Partners

    Fairfax, VA
    4 days ago
  • $77.28k - $117.3k

    Vienna, VA Position Title Systems Administrator We are seeking a Systems Administrator to join our team. Working at NT Concepts means that you are part of an innovative, agile company dedicated to solving the most critical challenges in National Security. Were looking... 
    Contract work
    For contractors
    Work experience placement
    Remote work
    Relocation

    Next Tier Concepts

    Vienna, VA
    4 days ago
  •  ...Health IT, and Tribal sectors. Our highly certified experts build systems that drive efficiency, accelerate modernization, and ensure...  ..., visit About The Role Concept Plus is seeking a System Administrator to operate within a multi-disciplinary IT team consisting of cybersecurity... 
    Local area
    Flexible hours

    Socket

    Fairfax, VA
    1 day ago
  • Freedom Technology Solutions Group is seeking a Systems Administrator to support the design, analysis, and deployment of secure, reliable software for our customer, either independently or within a team. Located in McLean, VA! Responsibilities Experience with Microsoft... 
    For contractors
    Flexible hours
    Night shift

    Freedom Technology Solutions Group, LLC

    Mc Lean, VA
    4 days ago
  • $75k - $113.79k

    Job Title: Systems Administrator III Clearance Required: Secret Work Location: Onsite, San Antonio, TX Key Responsibilities: Analyze, validate, implement, maintain, and configure current services and tools (examples include Active Directory (AD), System Center Operations... 
    Contract work
    Work experience placement
    Flexible hours

    Alpha Omega Services

    Vienna, VA
    1 day ago
  • Responsibilities Support the National Programs Intelligence Systems & Application Operating Unit. Oversee and manage both virtual...  ...degree with 3+ years of experience. Proven experience in system administration, specifically with Linux, including RHEL and Ubuntu, and UNIX... 
    Local area

    Jobtailor

    Fairfax, VA
    3 days ago
  • The HPC group is looking for an experienced Linux systems administrator with HPC experience and programming skills, to join our team. The HPC team is responsible for purchasing, deploying, and maintaining HPC hardware and user tools for over 450 MITRE employees. The HPC... 
    Work experience placement

    MITRE

    Mc Lean, VA
    1 day ago
  •  ...August 2025 Application Deadline: 29 August 2025 Department: Systems Engineering Location: Headquarters Description Aireon deployed...  ...the Aireon Network Engineering Group, the Senior Systems Administrator is responsible for helping to set up, maintain and manage Aireon... 
    Permanent employment
    Full time
    Temporary work
    For subcontractor
    Work at office
    Remote work
    Flexible hours

    Aireon LLC

    Mc Lean, VA
    3 days ago
  • Booz Allen Hamilton is seeking a BigFix and System Administrator to design and implement a new BigFix environment across internal labs. You will onboard environments, patch, remediate vulnerabilities, and establish secure baselines while maintaining functionality. The... 

    3M HEALTHCARE

    Mc Lean, VA
    2 days ago
  • Support the National Programs Intelligence Systems & Application Operating Unit. Orchestration, sustainment, and evolution of a portfolio...  ...with 3+ years of experience. Proven experience in system administration, specifically with Linux, including RHEL and Ubuntu, and UNIX... 

    Jobtailor

    Vienna, VA
    3 days ago
  • Job Description ACTIVE TS/SCI WITH FULL SCOPE POLY REQUIRED*** Our client has an immediate need for a System Administrator with a focus on Linux experience in the McLean, VA area. The on‑site system administrator shall support the day‑to‑day operations of the Sponsor’... 
    Local area
    Immediate start
    Remote work

    Convirgence

    Mc Lean, VA
    1 day ago
  • $50k - $290k

     ...supports Civilian, Defense, and Intelligence Community customers across the country and around the globe. We are looking for a Systems Administrator to join our high-performing team on a dynamic, mission-focused program in Tysons Corner, VA. Responsibilities Provide... 
    For contractors

    The Swift Group, LLC

    Tysons Corner, VA
    3 days ago

Do you want to receive more vacancies?

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