Expression Networks is seeking an experienced Information Systems Security Officer (ISSO) and Information Systems Security Engineer (ISSE) to join our team supporting secure, cloud-based application environments. The ideal candidate is a knowledgeable and customer-focused security professional with strong technical skills, proven experience in cybersecurity compliance, and a proactive approach to problem-solving.

Key Responsibilities

• Ensure compliance with NSS security standards and proper handling of classified and Controlled Unclassified Information (CUI)

• Enforce FedRAMP High, IL6, and Zero Trust Architecture requirements

• Develop, maintain, and update:

  • System Security Plan (SSP)

  • Disaster Recovery Plan (DRP) / Information System Contingency Plan (ISCP)

  • Security Assessment Report (SAR) & Risk Assessment

  • Plan of Action and Milestones (POA&M)

  • Continuous Monitoring Plan

  • Incident Response/Contingency Plans

  • Installation and Configuration Guides

• Support and maintain Authority to Operate (ATO) via the NIST Risk Management Framework (RMF)

• Implement end-to-end encryption and access controls for data at rest and in transit

• Audit and secure enriched data, geospatial data, and sensitive spectrum data

• Collaborate with Cybersecurity Engineers to enforce secure infrastructure and dashboard access

• Ensure all team members complete cybersecurity training; submit proof to Contracting Officer's Representative (COR)

• Monitor infrastructure to maintain 99.9% uptime (excluding maintenance)

• Produce monthly system monitoring and performance reports, including root-cause analysis for downtime

• Maintain a real-time, browser-based System Health Dashboard accessible to stakeholders

• Utilize Security Information Event Management (SIEM) and Software Security Tools to identify, report and remediate security vulnerabilities.

Required Qualifications

• Active Secret clearance

• Minimum 5 years of experience in FISMA compliance and NIST RMF

• DoD 8570 IAT Level II or IAM Level I certification (e.g., CompTIA Security+)

• Experience in cloud environments such as AWS & Azure

Preferred Qualifications

• Bachelor's degree in Computer Science, IT, or a related field

• DoD 8570 IAT/IAM Level III certification (e.g., CISSP)

• Additional certifications: CEH , GIAC

• Experience using Xacta 360

Benefits:

Expression 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
• Onsite office gym access
• Commuter Benefits Plan

About Expression:

Founded in 1997 and headquartered in Washington DC, Expression 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 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 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.

Equal Opportunity Employer/Veterans/Disabled