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 Nations 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: Shift hours and days of the week within the window of 500 AM - 900 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.
• Rotate and manage IAM user secret & access keys in accordance with the companys 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, embracing reliability constraints, and proactively contributing 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.

Clearance Required:

• TSSCIM (Top Secret/Sensitive Compartmented Information) clearance.

Minimum Education and Experience:

• Bachelors 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

Compensation Details:

• $155,000 - $180,000 (US) or $150,000 - $180,000 (Javelin)

Benefits Overview:

• Health, dental, and vision insurance
• Paid time off and holidays
• Retirement benefits, including 401k 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-OHara Service Contract Act (SCA), or other employment contracts may include different provisions and benefits.

Original Posting:

• Date: 02/13/2026
• Closing Date: Until Filled (with a closing date no earlier than three days after the original posting)
• Amentum is proud to be an Equal Opportunity Employer.