Senior System Administrator
Listed on 2026-01-12
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IT/Tech
IT Support, Cybersecurity
Overview
Your Impact: 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.
Responsibilities- Provide support for implementation, troubleshooting, and maintenance of cloud systems
- Isolate and resolve problems involving the applications, operating system, hardware, communications, other infrastructure, or any combination as needed
- Prepare problem reports to appropriate leads like Amazon/C2S, NGA-ESC, etc.
- Provide support for the escalation and communication of status to agency management and internal customers
- Deploys operating system and application software to cloud compute resources.
- Isolate and resolve hardware and software problems involving the applications, operating system, hardware, communications infrastructure, or any combination of these
- Troubleshoot, maintain integrity and configure network components along with implementing operating systems enhancements to improve reliability and performance
- Integrate new technologies into new and existing systems including the transition and migration of corporate systems
- Monitor and report on system health using various dashboarding tools such as Elasticsearch Kibana, AWS Cloudwatch, etc.
- Troubleshoot and triage incidents and degradations on production systems.
- Work closely with various segments across the program organization, i.e. Security, Development, Test, and Integration teams.
- Execute with minimal technical supervision, embrace reliability constraints, and be proactive in contributing improvements to the platform.
- Collaborate with development and operations teams to integrate Terraform into existing CI/CD pipelines, enabling automated and consistent infrastructure deployments across various environments.
- Assist in troubleshooting network, DNS, and storage issues and make recommendations for cost saving options and growth.
- Participate in a shared on-call rotation when necessary.
- Willing to work or backfill all shifts as needed (Core hours 5A-9P EST)
- Mentor others or serve as a team lead, guiding the day-to-day activities of team members.
- Ability to code/script in Python
- Experience working with Git Lab and supporting CI/CD pipelines.
- Experience delivering projects via Agile methodologies
- Excellent verbal and written communication skills.
- Other duties as assigned.
The ability to report and work on-site daily (this role is not remote).
Clearance RequiredActive TS/SCI with ability to obtain a poly
Minimum EducationBachelor’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 Experience5 Years with Bachelor’s Degree:
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
- Demonstrated proficiency with the AWS C2S suite and services.
- Experience administering and managing Oracle Cloud Infrastructure
- Troubleshooting and providing AWS technical support to the NGA enterprise.
- Senior level experience managing and administering Linux/Windows based systems including patching, updates, and configuration management.
- Experience with Active Directory and managing/maintaining Windows servers
- Analyze logs and troubleshoot issues on EC2 instances by establishing SSH connections using tools such as Moba Xterm or Putty
- Creating IAM users/roles/policies per user requests.
- Writing json IAM/S3 policies to administer access to various IAM roles and S3 objects.
- Experience using Service Now, Jira, Confluence, etc.
- Using LDAP to administer account creation & management on various Linux Servers.
- Provide support, improve and implement internal components and applications on top of multiple clusters.
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