• Location: Herndon, Virginia
  • Type: Contract
  • Job #1698

Title: Systems Engineer, SME
Location: Herndon, VA
*Clearance: Active TS/SCI w/ Polygraph needed to apply *

*Additional Security Scrub Required*



Company Overview:

Cornerstone Defense, in partnership with our military, intelligence, and civil government customers, supports U.S. operations worldwide through the use of many different types of intelligence, satellite, and cyber technologies. Cornerstone’s Intelligence Sector provides solutions to the United States Government for information collection, operations, exploitation and dissemination, and research activities. Our Team specializes in software development, cloud architecture, systems and network engineering, systems integration, agile management, as well as targeting operations and intelligence analysis. Our support to our mission customers includes cyber network operations, exploitation and defense, signals intelligence, human intelligence, and critical missions and networks.



As a Systems infrastructure Engineer supporting the customer, you will be responsible for building, maintaining, and troubleshooting the customer's rapidly expanding infrastructure. ln this role a typical day will include but not limited to:

  • Collaborating with infrastructure engineers and administrators to maintain and enhance secure systems using cloud computing services and tools
  • Deploying various open source packages and/or application stacks into the customer's production system
  • integrating open source frameworks and products into the production environment
  • Working across the different layers of the lT infrastructure (e.g. network, storage, platform, database, and application)
  • Providing Tier-3 SME troubleshooting and performing root cause analysis on production incidents

Required Skills/Qualifications: 

  • Demonstrated knowledge of AWS to include EC2, EBS, 53, Glacier, DynamoDB, lAM, RDS, ElasticCache, Lambda, ECS, VPC, CloudFormation, CloudWatch, CloudTrail, Direct Connect, SQS, SNS, etc.
  • Demonstrated experience with automated provisioning technologies or methods such as AWS CloudFormation, Chef, or AWS bootstrapping via cloud-init scripts.
  • Demonstrated on-the-job operational and analytical experience, and excellent understanding of the development of baselines for middleware platforms that can support both on premise and cloud-based AWS environments.
  • Demonstrated strong understanding of underlying storage for Linux (LVM), storage network protocols (e.g. NAS, NFS, CIFS, etc.), and clustered or pooled virtualization concepts from leading platforms (e.g. XenServer, HyperV, VMware, etc.).
  • Demonstrated strong understanding of proactive monitoring concepts, including experience configuring and deploying Network and systems monitoring, SNMP (e.g. Ganglia, Nagios, Zenoss).
  • Knowledge with Migration of applications and deployment of physical and virtual servers, deployment, configuration, and maintenance of server environments.
  • Demonstrated experience and understanding of information security practices (e.g. cryptography, privilege separation, RBAC, INFOSEC, Auditing, Patching, Security Benchmark Compliance, OS hardening).
  • Demonstrated experience and in-depth knowledge with the Linux operating systems (e.g. RedHat, CentOS)
  • 16 years of related experience
  • Education: Bachelor's degree in Computer Science, lnformation Systems, Engineering, Business or a related technical discipline or the equivalent combination of education and work experience.

Equal Opportunity Employment
Cornerstone Defense is proud to be an Equal Opportunity Employer. We are committed to creating an inclusive working environment for all employees and to upholding diversity in our recruiting and hiring processes. All qualified applicants will receive equal consideration for employment without regard to sex, gender identity, sexual orientation, race, color, age, religion, national origin, physical or mental disability, protected Veteran status, or any other characteristic protected by law.

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