• Location: McLean, Virginia
  • Type: Contract
  • Job #1860

Systems Engineer – Expert/SME

Work location: Just outside WMA

*Clearance: *Active TS/SCI w/ Polygraph needed to apply *


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.


Job Description:

The individual selected for this position will support the Customer's organization responsible for supporting thecorporate career development, which is a learning institution, where skills-specific training divisions leverage privatesector opportunities to raise digital acumen throughout the Sponsor organization. The office environment is fast-pacedand requires a self-starter. The Sponsors office consists of five (5) components, of which the SE will support the digiLearn Platform.


The System Engineer (SE) shall be responsible for all aspects of the software development lifecycle, including the integration of middleware with COTS as well as enterprise systems. Responsibilities consist of, but are not limited to the following:


  • All aspects of the software development lifecycle, to include integration of middleware with COTS as well as enterprise systems.
  • Serve as the Lead for troubleshooting and solving complex technical problems related to the production system
  • Lead the integration of COTS applications, technologies and services into the client network.
  • Lead the Authorization and Accreditation process for COTS deployment to cloud and on premise environments.
  • Evaluate new feature for technical approach and estimation of level of effort to implement.
  • Communicate (orally and in writing) moderately complex technical concepts & project information
  • Assist with the deployment and maintaining systems in cloud environment.
  • Manage technical elements of a continuous integration environment and apply continuous deployment best practices.
  • Develop system documentation – build, standard operating procedures, maintenance instructions, configuration management
  • Work with subject matter experts to define processes, conduct gap analysis and recommend alternatives for use in future development efforts.
  • Coordination with COTS vendor on planned enhancements and troubleshooting.
  • Coordination with external offices to ensure compliance with data standards, and successful data exchange
  • Transition of legacy system to new technologies with a focus on how processes and the corresponding data are impacted.
  • Provide demonstrations and detailed walk-through of features to a variety of technical and non­technical audiences.
  • Document system changes, maintaining configuration control, and maintaining system security documentation.
  • Develop technical documentation and briefing materials to support program status reviews, control gates, and other presentations as directed by the client.




  • Extensive experience with Java, Python, SQL Database, and ASP.NET application.
  • Maintenance experience with Windows based servers
  • System administration experience with AWS cloud operations and services
  • Experience using the Amazon Web Services (AWS) Management Console and AWS Services including EC2, Load Balancing, S3 and CloudWatch
  • Demonstrated experience with cloud optimization and engineering to include scheduled jobs and tasks, and capacity planning.
  • Experience with cloud architecture elements such as security groups, NACLs, and route-tables.
  • Demonstrated experience creating and maintaining shell scripts written in languages such as bash, Python, Yaml, and JSON.
  • Experience creating and maintaining CloudFormation templates.
  • Demonstrated on-the-job experience with web services (REST) and Service Oriented Architectures (SOA).
  • Strong written and verbal communication skills.
  • Team player attitude and experience leading a technical team. Desired:
  • Working knowledge of network security controls, Learning Management Systems and/or application of Artificial Intelligence/Machine Learning (Al/ML)
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