Information Systems Security Engineering (ISSE)

We are a Veteran-Owned management consulting firm specializing in technical and cleared recruiting for the Department of Defense (DoD), the Intelligence Community (IC), and other advanced defense agencies. We support fellow Veteran-Owned businesses by helping them recruit for positions across organizations such as the VA, SBA, HHS, DARPA, and other leading-edge R&D-focused defense agencies.

About the role

The Information System Security Engineer will design, develop, implement, and integrate DoD IA architectures, systems, or system components for use within computing, network, and enclave environments. The role involves performing security engineering activities across the SDLC, maintaining enterprise security architecture aligned with NIST RMF, and evaluating cybersecurity tools to improve system security posture and threat detection capabilities.

Responsibilities

• Design, implement, and maintain enterprise security architecture aligned with NIST RMF, DoD STIGs, CIS benchmarks, and organizational cybersecurity policies.
• Perform security engineering activities across the system development lifecycle (SDLC), including requirements analysis, system design reviews, security testing, and accreditation support.
• Implement vulnerability management processes utilizing Tenable Nessus, ACAS, and Qualys to identify, assess, and remediate system vulnerabilities.
• Integrate cybersecurity requirements into Windows and Linux server environments, cloud infrastructure, virtualization platforms, and containerized applications.
• Support incident response and forensic investigations by analyzing security logs, SIEM alerts, network traffic, and endpoint telemetry using Splunk Enterprise.
• Develop automation scripts using PowerShell, Bash, and Python to streamline vulnerability remediation, account auditing, compliance reporting, and security monitoring tasks.
• Collaborate with system administrators, network engineers, ISSOs, and application teams to remediate security findings and implement secure configuration baselines.
• Perform security impact analysis for system changes, software deployments, and infrastructure upgrades to ensure continued compliance and operational security.
• Engineer endpoint protection and hardening solutions utilizing Trellix ePO – On-prem, host-based firewalls, and application whitelisting technologies.
• Evaluate and implement cybersecurity tools and technologies to improve system security posture, continuous monitoring, and threat detection capabilities.
• Produce technical security documentation, architecture diagrams, standard operating procedures (SOPs), and executive-level risk assessment reports.
• Experience administrating, configuring, and troubleshooting core modules such as Enterprise Password Vault (EPV), Password Vault Web Access (PVWA), Central Policy Manager (CPM), and Privileged Session Manager (PSM) in CyberArk.
• Monitor, analyze, and detect cyber events and incidents within information systems and networks under general supervision.
• Assist with integrated, dynamic cyber defense, coordinate and maintain security toolsets to support organizations’ continuous monitoring and ongoing authorization programs.
• Establish a framework by which cyber risk can be measured and quantified in the marketplace.
• Determine security requirements by evaluating business strategies and requirements; researching information security standards; conducting system security and vulnerability analyses and risk assessments; studying architecture platform; identifying integration issues; preparing cost estimates.
• Implement security systems by specifying intrusion detection methodologies and equipment; directing equipment and software installation and calibration; preparing preventive and reactive measures; creating, transmitting, and maintaining keys; providing technical support; completing documentation.
• Verify security systems by developing and implementing test scripts.
• Maintain security by monitoring and ensuring compliance to standards, policies, and procedures; conducting incident response analyses; developing and conducting training programs.
• Ensure the architecture and design of development and operational systems are functional and secure, including designs for program of record systems and special purpose processing nodes with platform IT interconnectivity.

Requirements

• Current/active TS/SCI level clearance is required.
• DoD 8570.1-M 8140 IAT Level III certification (e.g., SecurityX (CASP), GCIH, CISA, CISSP).
• BS Degree in IT or related field.
• Strong background in networking (TCP/IP, firewalls, VPNs), cloud security (AWS/Azure), Kubernetes, and DevSecOps.
• Deep understanding of NIST SP 800-161, NIST RMF, FedRAMP, Common Criteria, ATO package development, and cybersecurity compliance (STIGs).
• Hands-on experience managing and deploying Tenable Nessus, CyberArk, Trellix, Splunk Enterprise, VMware vSphere, GitLab, Microsoft Windows Server, Red Hat Enterprise Linux, and Ubuntu Linux.
• Experience with scripting and automation using PowerShell, Python, Bash, and Ansible.
• Proven experience leading projects and mentoring junior ISSEs.
• Ability to present technical briefings to leadership.

Qualifications

• Level 2: BS/BA Degree with 2 to 5 years of experience, or MS/MA/MBA with 0 to 2 years of experience, or 8 to 10 years of experience with no degree.
• Level 3: BS/BA Degree with 5 to 8 years of experience, or MS/MA with 3 to 5 years of experience, or PhD with 0 to 2 years of experience.

Pay

$116,000 - $140,000

Location: Annapolis Junction, MD (Primary)