Senior Systems Administrator

Tetrad Digital Integrity LLC•Springfield, VA

1d•Onsite

About The Position

Tetrad Digital Integrity (TDI) is a cybersecurity firm specializing in high-consequence environments, providing cyber solutions for 25 years. This Senior System Administrator position is part of the Geospatial Enterprise Open Data Store (GEODS) contract, which involves integration, design, development, and sustainment for data services supporting the Federal Government. The role is responsible for overseeing product testing from development to operational deployment, collaborating with Scrum Masters and developers on requirements, and contributing to the GEODS program's Backlog and Roadmap. This is a fully onsite position in Springfield, Virginia, requiring an active TS/SCI clearance.

Requirements

Active TS/SCI clearance with ability to obtain a CI Polygraph
Bachelor’s degree with 5+ years of relevant experience, Associate degree with 7+ years of relevant experience, or 8+ years of experience in a related field
Proficiency with collaboration and workflow tools such as ServiceNow, Jira, and Confluence for incident management, project tracking, and knowledge sharing

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