Expression Networks is looking for an Information Systems Security Officer (ISSO) with an active Top Secret security clearance to join our team in Annapolis, Maryland. In this role, you will work with a team to deploy, operate, and maintain cloud-based applications. You should be knowledgeable and customer-oriented, possessing strong communication and presentation skills. You should also have superior technical expertise and a problem-solving aptitude.

Job Responsibilities:

  • Ensure classified information systems (IS) meet cybersecurity and Government directives and requirements
  • Obtain and maintain authority to operate (ATO) via the Risk Management Framework (RMF)
  • Perform system auditing, vulnerability assessments, assured file transfers, harware/software configuration management, data integrity containment, and information assurance (IA) investigations
  • Represent the organization as an IA subject matter expert
  • Interface with senior level internal/external stakeholders to identify, validate, and verify requirements
  • Support operations and maintenance activities for both Linux and Windows platforms
  • Configure, troubleshoot, and support software tools, computer environments, and cloud deployments
  • Install software/application patches and upgrades
  • Plan and execute software deployments
  • Review and implement STIG requirements

Minimum Experience:

  • Active Top Secret security clearance
  • Associate's degree in Information Technology (IT), computer science, or related field
  • 4 years of experience as an ISSM/ISSO
  • Active DoD 8570 / DoD 8140 IAM Level I certification
  • Knowledge of NIST special publications
  • Experience working in cloud-based environments such as milCloud, AWS, or Microsoft Azure
  • Experience with VMware / VSphere
  • Security+ certification

Preferred Experience:

  • Active TS/SCI clearance
  • Bachelor’s degree in IT, computer science, or related field
  • Active DoD 8570 IAM Level II certification
  • Experience administering in the DISA/DoD network
  • Experience with DISA SSL certificate requests and installation


Expression Networks offers competitive salaries and benefits, such as:

  • 401k matching
  • PPO and HDHP medical/dental/vision insurance
  • Education reimbursement
  • Complimentary life insurance
  • Generous PTO and holiday leave

About Expression Networks:

Founded in 1997 and headquartered in Washington DC, Expression Networks provides data fusion, data analytics, software engineering, information technology, and electromagnetic spectrum management solutions to the U.S. Department of Defense, Department of State, and national security community. Expression’s “Perpetual Innovation” culture focuses on creating immediate and sustainable value for our clients via agile delivery of tailored solutions built through constant engagement with our clients. Expression Networks was ranked #1 on the Washington Technology 2018's Fast 50 list of fastest growing small business Government contractors and a Top 20 Big Data Solutions Provider by CIO Review.