
Real job — pulled straight from excelity-careers’s careers page · Verified August 23, 2026 · No reposts.
Job description
excelity-careers is hiring a Information Systems Security Engineer — a full-time, based in Herndon, VA role. Apply directly on excelity-careers's careers page below.
Information Systems Security Engineer
Location: Herndon, Virginia
Department: Mission Integration
Location Type: IN_OFFICE
Employment Type: FULL_TIME
- Design and implement safety measures and controls. Monitor network activity to identify vulnerable points. Address privacy breaches and malware threats.
- Support the Assessment and Authorization (A&A) processes and Information Assurance documentation for multiple analytic and mission systems across all CLINs
- Generate and maintain the complete security Body of Evidence (BoE) while leading the A&A activities according to the Risk Management Framework (RMF) processes (ICD 503, CNSSI-1253, NIST 800-37, NIST 800-53, etc.) for all multiple information systems
- Author, complete and maintain the System Security Plan (SSP) within XACTA
- Develop the Security Controls Traceability Matrices (SCTM), and the Security Test Plan (STP) procedures within Xacta.
- Analyze existing security systems and make recommendations for changes or improvements
- Prepare reports and action plans if a security breach does occur
- Monitor the network and provide early warning of abnormalities or problems
- Communicate the system status and keep users informed of downtime or changes to the system
- Experience working with software developers and architects to understand security requirements
- Experience guiding the application developers on security policy, identifying security requirements, providing technical guidance for the satisfaction of requirements
- Experience creating and managing the plan of action and milestones (POA&Ms), and working with project managers and engineers to develop schedules and engineering actions that mitigate open findings
- Experience supporting the Continuous Monitoring of operational systems; experience monitoring and auditing operational systems for proper use
- Log Review/Analysis using SIEM tools (Splunk, etc.)
- Vulnerability Analysis and Review (ACAS, Prisma, SonarQube, JFrog X-Ray, GitLab Code Quality)
- DISA STIGs and STIG Viewer experience
- 9+ years supporting Assessment and Authorization (A&A) and information assurance processes and documentation using RMF, BS degree; 7 years of experience with a masters; an additional 4 years of experience required in lieu of a degree
- Hands-on experience to validate control implementations and test procedures
- Knowledge of current security risks and protocols
- Willingness to work outside of standard hours if circumstances require
- DoD Approved 8140 Baseline Certifications (eg, Security+) certifications
- RMF, Xacta experience
- Work 100% onsite in a secure environment
- Experience working with AWS/Google cloud-hosted information systems or applications
- Experience working with Containerized Systems or Applications
- Experience working with Redhat or CentOS Linux operating systems
- Experience working in a DevSecOps environment and tool chain
- Competitive salary
- Flexible work schedule
- 100% Health, Dental, Vision, and Life Insurance plans with Flexible Spending Account (FSA)
- Long and Short-term disability coverage
- Generous paid vacation and holiday time
- Safe Harbor 401(k) Retirement Plan with 6% Employer matching contributions
- Reimbursement for professional and training development
- Company-paid memberships to professional organizations
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Frequently asked questions
What skills are required for Information Systems Security Engineer at excelity-careers?
The required skills for Information Systems Security Engineer at excelity-careers include: CompTIA Security+, Splunk, AWS, GCP, DevSecOps.
What is the seniority level for Information Systems Security Engineer at excelity-careers?
Information Systems Security Engineer at excelity-careers is a Senior level position.
How do I apply for Information Systems Security Engineer at excelity-careers?
You can view the full description and apply for Information Systems Security Engineer at excelity-careers on EchoJobs: https://echojobs.io/job/excelity-careers-information-systems-security-engineer-tuijd.