- Dentons US LLP (Washington, DC)
- Senior Enterprise Messaging Administrator Chicago, IL, USSt. Louis, MO, USKansas City, MO, USWashington DC, DC, USDenver, CO, USAtlanta, GA, USDallas, TX, US Dec ... 12, 2025 ** Senior Enterprise Messaging Administrator ** Dentons US LLP...the latest applications, technologies, and their integration into existing systems , ensuring optimal performance and reliability. **Responsibilities:** + Lead… more
- AeroVironment (Arlington, VA)
- …**Job Description** **Job Summary:** The primary role of the Linux System Administrator is to support the full life-cycle management of 24x7 mission-focused ... This role is responsible for the day-to-day operations of deployed systems , including monitoring, auditing, log review, maintenance, troubleshooting, and after-hours… more
- AeroVironment (Germantown, MD)
- …role is responsible for resolving highly complex issues across multiple systems , mentoring junior staff, leading process improvement initiatives, and ensuring the ... and root cause analysis on multifaceted issues affecting enterprise systems , applications, and endpoints. + Coordinate with network, ...IT support, with at least 2 years in a senior technician, engineer, or escalation role. + ITIL Foundation… more
- Infinity Systems Engineering (Alexandria, VA)
- …- now, come be more with us! Job Summary: We are seeking a skilled Systems Administrator /Network Engineer to join our mission-driven team. This position offers a ... expertise, initiative, and experience supporting a mix of network and systems engineering and administration tasks. Key Responsibilities: Network Design &… more
- Applied Research Solutions (Washington, DC)
- …developing, and maintaining integrations between cloud-based applications and on-premise systems . You'll work closely with cross-functional teams to ensure seamless ... our awards and recognition program, and personalized attention from ARS Senior Managers. Responsibilities include: + Administer and maintain cloud-hosted application… more
- Red River (Chantilly, VA)
- …you seek to make those around you successful. We are looking for a ** Systems Support Engineer I** to join our fast-paced, customer-first global service desk team. ... calls and assigned tickets from users experiencing challenges with systems , applications, and infrastructure. Whether working independently or collaboratively, your… more
- Tyto Athene (Ashburn, VA)
- …Architect. + Strong experience in enterprise IT environments as an applications or systems administrator . + Practical knowledge of Windows and Linux systems ... with a strong emphasis on Amazon Web Services (AWS). + Serve as a senior Splunk Administrator or Architect, responsible for the configuration, maintenance, and… more
- BAE Systems (Washington, DC)
- …Other incentives may be available based on position level and/or job specifics. ** Senior Systems Administrator ** **118971BR** EEO Career Site Equal ... **Job Description** BAE Systems is seeking **System Administrators** to join our...anticipated decision expected by Q3/Q4 of 2026.** The **System Administrator ** responsibilities include, but are not limited to: +… more
- General Dynamics Information Technology (Washington, DC)
- …5 + years of related experience **US Citizenship Required:** Yes **Job Description:** Senior Systems Administrator Own your opportunity to join our ... our best becomes better. GDIT has an immediate opening for a Systems Administrator to fill a Core Services position supporting the NNSA (National Nuclear… more
- General Dynamics Information Technology (Fairfax, VA)
- …**Job Description:** Transform technology into opportunity as a **Directory Services Engineer / Senior Systems Administrator ** at GDIT. Shape what's next for ... our differentiators. Our work depends on a **Directory Services Engineer / Senior Systems Administrator ** joining our CNIC Applications Support team which… more
- CACI International (Annapolis Junction, MD)
- Senior Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee ... system infrastructure and any processes related to these systems . The Senior Systems Administrator will Configure and manage primarily Windows and some… more
- UIC Government Services and the Bowhead Family of Companies (Arlington, VA)
- **Overview** SENIOR SYSTEMS ADMINISTRATOR (NAUT): Bowhead seeks a Senior Systems Administrator to support our customer on the Nautical contract ... monitoring tools + Configure and manage virtual machines, containers, storage systems , and networking components in secure cloud environments + Implement and… more
- The Boeing Company (Herndon, VA)
- …and Security (IDT&S) organization Specialized Infrastructure Operations group is currently seeking a ** Senior Systems Administrator ** to join the team in ... meaningful contributions, from the seabed to outer space. The Senior System Administrator will handle system administration...Security+ Certification + 5+ years of experience as a systems administrator + 5+ years of experience… more
- Chenega Corporation (Arlington, VA)
- **Req ID:** 38512 **Summary** ** Senior Systems Administrator ** **Arlington, VA** Are you ready to enhance your skills and build your career in a rapidly ... and economic interests of our nation. SecuriGence is seeking a talented ** Senior Systems Administrator ** to help contribute to our success. Come help… more
- Leidos (Annapolis Junction, MD)
- **Description** **Leidos** has a new and exciting opportunity for a Senior Systems Administrator in our **Intelligence Sector's (NSS) Cyber & Analytics ... much more. **Join us and make a difference in National** **Security!** As a Senior Systems Administrator you will play a vital role in maintaining the… more
- ManTech (Chantilly, VA)
- **MANTECH** seeks a motivated, mission-oriented ** Senior Systems Administrator ** to join our team in **Chantilly, VA.** As the Lead Senior Systems ... and 7 years' experience, or high school diploma/GED and 13 years of relevant systems administration experience with 3 + years in a leadership role + Experience in… more
- ManTech (Washington, DC)
- **MANTECH** seeks a motivated, career and customer-oriented ** Senior Systems Administrator ** to join our team in **Washington** **, DC** . **Responsibilities ... of five (5) years of related experience in computer hardware, software, networking systems , and in the set-up, configuration, use, and troubleshooting of computer … more
- ManTech (Chantilly, VA)
- **MANTECH** seeks a motivated and skilled ** Senior Systems Administrator ** to join our sustainment team in **Chantilly, VA.** In this role, you will support ... are not limited to:** + Provide hands-on O&M support for enterprise systems , including break-fix resolution and routine sustainment tasks + Monitor system… more
- BigBear.ai (Annapolis Junction, MD)
- Overview BigBear.ai is seeking a Senior Systems Administrator with an active TS/SCI with Poly clearance to join and assist and meet mission needs for our ... do + Manage customer's Risk Management Framework and related systems to ensure optimized performance and security + Support...security + Support patching, upgrading, and migrating of Linux systems and VMs. + Support agile activities for … more
- Leidos (Arlington, VA)
- …Training (DISA-US1384 DCWF Linux System Administrator / DISA-US1390 DCWF Windows Systems Administrator ). + 3+ years deploying Unix in secured environments, ... Leidos Digital Modernization Sector is seeking a **_Senior Linux Systems Administrator_** in support of the Air Force National...our critical Red Hat Enterprise Linux environment. As a Senior System Administrator , you'll be instrumental in… more
