Systems Administrator/ AWS Cloud Engineer/ Linux Engineer - Expe with Security Clearance

Title: Systems Administrator/AWS Cloud Engineer/ Linux Engineer - Expert Location: Warrenton, Virginia *Clearance: *Active TS/SCI w/ Polygraph needed to apply * Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation's toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don't look any further than Cornerstone Defense. Cornerstone Defense is expanding our System Administration team. We are seeking a highly skilled System Administrator/Cloud Engineer to enhance our existing technical team supporting the advancement of AI/ML/Data Science technologies in Warrenton, VA. The successful candidate will be a self-motivated, innovative, cloud engineer to join in and contribute to a team environment. The candidate will be part of a team that supports the cloud infrastructure for an enterprise environment. This position requires a broad knowledge of system administration, knowledge of automation technologies, and scripting. This position also requires a knowledge of security and accreditation practices and procedures the ability to work with several enterprise resources and teams in the operation of an enterprise digitization infrastructure. Mandatory: • Must have hands-on experience with AWS and Linux in a production environment. • Experience patching and maintaining systems databases, to include RDS, MySQL, and Oracle • Proven experience troubleshooting and solving technical problems • Knowledge of Federated Identity, RBAC, authentication & authorization solution, etc. • Understanding of secure-cloud configuration, (e.g., CloudTrail, AWS Config), cloud-security technologies (e.g., VPC, Security Groups) and Access Control (IAM). • Experience with configuration management (e.g., Puppet, Chef, Ansible, CloudFormation, etc.) • Experience with security, such as NGFW, WAF, SIEM, endpoint security. • Ability to work in a fast-paced agile environment • Bachelors Degree in IT related field or equivalency in related work experience • Demonstrated on-the-job experience working and solving technical problems independently as a system administrator. • Experience using a scripting language. • Demonstrated ability to monitor and troubleshoot enterprise workflow applications, to include: installing, starting, and stopping background, processes, analyzing log and event files, and patching and troubleshooting. • Demonstrated ability creating and managing a virtual infrastructure, such as AWS, Azure, Hyper-V, or VMWare. Optional: • Experience with an enterprise application development language, such as Python, Java, or C#, to include writing simple applications or modifying existing ones.