Sr. Systems Administrator

Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. Amentum is seeking a Senior System Administrator to join our team of passionate individuals in Springfield, VA
. In this role you will support challenging, mission‑critical projects that make a direct impact on the Nation’s security and intelligence mission.

The Geospatial Enterprise Open Data Store (GEODS) contract provides integration, design, development, and sustainment for data services in support of the Federal Government.

The Senior System Administrator is responsible for overseeing the testing of products from development to operational deployment, working with Scrum Masters and developers through the requirements process and contributing to a robust, organized Backlog and streamlined Roadmap for the GEODS program.

Within the window of 5:00AM – 9:00 PM EST

• Access Management & Security:
  • Fulfill AWS S3 bucket access requests from data custodians, ensuring proper authorization and data security.
  • Create and manage IAM roles and policies to enforce strict access control principles and maintain a secure cloud environment.
  • Create, rotate, and manage IAM user secret & access keys in accordance with the company’s 90‑day key rotation policy.
• Monitoring & Troubleshooting:
  • Proactively monitor the health and performance of our systems and websites using tools like Cloud Watch, Kibana/Elasticsearch, and Tableau, ensuring optimal functionality and identifying potential issues.
  • Troubleshoot and resolve system issues by analyzing logs on EC2 Linux instances within AWS.
  • Assist in troubleshooting network, DNS, and storage issues, and make recommendations for cost‑saving options and growth.
• Operational Support &
  
  Collaboration:
  • Work on tickets in a timely manner, adhering to Service Level Agreements (SLAs) and providing efficient support to internal stakeholders.
  • Assist Dev Ops and development teams during deployments, ensuring smooth and successful releases.
  • Create SNS topics and configure S3 bucket notifications based on customer requests, enabling timely alerts and automated workflows.
  • Work closely with various teams across the organization, including security, development, and operations, to address AWS infrastructure requests and ensure alignment with best practices.
  • Document processes and contribute to the creation and maintenance of Standard Operating Procedures (SOPs) to improve team efficiency and knowledge sharing.
• Independence & Reliability:
  • Execute tasks with minimal technical supervision, embrace reliability constraints, and proactively contribute improvements to the platform.
  • Demonstrate commitment to teamwork, contributing to the betterment of the team and fostering a collaborative environment.
• On‑Site Availability:
  • Maintain on‑site availability Monday through Friday, adhering to the required work schedule.
• Proficiency with Tools:
  • Demonstrated experience using collaboration tools such as Service Now, Jira, and Confluence for incident management, project tracking, and knowledge sharing.

TS/SCI

Bachelor’s degree plus 5 years of experience,
Associates degree plus 7 years of experience or a minimum of 8 years of experience, in a related field

Bachelor’s degree plus 5 years of experience;
Associate degree plus 7 years of experience, or a minimum of 8 years of experience, in a related field

$155,000 - $180,000

US: $150,000 - $180,000

• Health, dental, and vision insurance
• Paid time off and holidays
• Retirement benefits (including 401(k) matching)
• Educational reimbursement
• Parental leave
• Employee stock purchase plan
• Tax‑saving options
• Disability and life insurance
• Pet insurance

Note:

Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O’Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

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02/13/2026 - Until Filled

Amentum anticipates this job requisition will remain open for at least three days, with a closing…