148 results for Systems Administrator Jobs in Reston, VA, US

Responsible for supporting client's trading desk operations, managing workflows, ensuring compliance, implementing operational risk controls, collaborating with trading and technology teams, preparing for market events, producing operational reports, managing technology issues, and maintaining user ...

Serco Inc. is seeking a motivated and detail-oriented Systems Administrator to provide hands-on support to the IT Operations Team. This role is ideal for a candidate looking to grow their skills in systems administration, network operations, and IT infrastructure management. The selected individual ...

Responsible for maintaining, troubleshooting, and improving server, storage, and network environments. Tasks include provisioning and monitoring servers, performing system administration tasks, supporting storage systems, automating routine tasks using scripting, and assisting in network device conf...

TISTA is looking for a Systems Administrator!Resourcefulness is a necessary skill in this role. You should be able to diagnose and resolve problems quickly. You should also have the patience to communicate with a variety of interdisciplinary teams and users.Your goal will be to ensure that our techn...

20250430-39153c-01Active Top Secret Clearance With Poly RequiredSalary Range: Up to $225K**salary is commensurate with education and experience**Job SummaryThis is a DEVOPS focused position.Support with maintenance of legacy applications and assist with transition to new system architecture. Support...

Position Summary And ObjectiveThe IT Systems Administratorrole is integral to our IT service delivery model. This position will oversee technical support and operations across multiple site locations and work with vendors and contractors when additional help or expertise is required. The IT Systems ...

Job#: 2072657Job Description:Apex Systems is seeking a Top Secret w/ CI Poly cleared System Administrator to join our partner for a long-term contract located in Reston, VA.Please see below for more details:Apex Systems is a world-class IT services company that serves thousands of clients across the...

Manage Active Directory domain and infrastructure, configure and deploy Windows servers and workstations, maintain systems by tuning performance, implement critical patches, provide procurement support for hardware/software, and respond to IT support requests.

Responsible for systems administration of cyber tools and server systems, supporting developmental and operational systems, configuring and managing Windows, UNIX, and Linux, and installing security tools. Provides monitoring and problem resolution for client, server, storage, and network devices.

Responsible for ensuring the optimal operation of multi-user computer systems, managing system resources, administering system security, providing Tier 1 and Tier 2 support, optimizing system performance, overseeing software installations, evaluating new technologies, and applying security settings.