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Sr. Systems Administrator

Amentum
Springfield, United Statesfull_timeVerifiedPosted 30 Jan 2026
💰 $190,000/yr

About the role

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.

Work Schedule:

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

Essential Responsibilities:

  • 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 CloudWatch, 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 DevOps 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 ServiceNow, Jira, and Confluence for incident management, project tracking, and knowledge sharing.

Minimum Requirements:

Clearance Required:

TS/SCI w/ Poly

Minimum Education:

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

Minimum Years of Experience:

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

#javelin

       

Compensation Details:

US:$160,000-$190,000

       

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

 

Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

  • Health, dental, and vision insurance

  • Paid time off and holidays

  • Retirement benefits (including 401(k) matching)

  • Educational reimbursement

  • Parental leave

  • Employee stock p

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Company

Amentum

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