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Amentum · 17 hours ago

Sr. Systems Administrator

US-VA-Arlington

Full-time

Onsite

Senior Level

$160K/yr - $190K/yr

5+ years exp

Amentum is seeking a Senior System Administrator to join their team in Arlington, VA, focusing on supporting mission-critical projects in the Cyber, Security, & Intel space. The role involves overseeing product testing, managing access and security, monitoring systems, and collaborating with various teams to ensure operational success.

Mechanical EngineeringSecurityTechnical Support

No H1B

Security Clearance Required

U.S. Citizen Only

Responsibilities

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

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

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

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

Maintain on-site availability Monday through Friday, adhering to the required work schedule

Demonstrated experience using collaboration tools such as ServiceNow, Jira, and Confluence for incident management, project tracking, and knowledge sharing

Qualification

AWS S3IAM rolesPoliciesEC2 LinuxCloudWatchServiceNowJiraConfluenceTeamworkReliability

Required

TS/SCI w/ Poly clearance required

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