Senior Information Systems Security Engineer (ISSE

Location: Annapolis Junction, MD

Security Clearance: Active TS/SCI [Required]

Job Type: Full-Time

Target Salary Range*:$150,000 - $210,000

• This represents the potential salary range for this position depending on education level, years of experience and/or certifications in addition to other position specific requirements which may impact salary

The Senior Information Systems Security Engineer designs, implements, and maintains enterprise security architecture aligned with NIST RMF, DoD STIGs, CIS benchmarks, and organizational cybersecurity policies. This role performs security engineering across the system development lifecycle, supports vulnerability management, integrates cybersecurity requirements across enterprise environments, and ensures development and operational systems are functional and secure.

• Security Architecture and Engineering
  Design, implement, and maintain enterprise security architecture aligned with NIST RMF, DoD STIGs, CIS benchmarks, and organizational cybersecurity policies.
• Security Engineering across the system development lifecycle
  Perform security engineering activities across the system development lifecycle, including requirements analysis, system design reviews, security testing, and accreditation support.
• Integration of cybersecurity requirements
  Integrate cybersecurity requirements into Windows and Linux server environments, cloud infrastructure, virtualization platforms, and containerized applications.
• DoD IA architectures and systems
  Responsible for the design, development, implementation, and integration of DoD IA architectures, systems, or system components for use within computing, network, and enclave environments.
• Architecture and design assurance
  Ensure the architecture and design of development and operational systems are functional and secure.
• Program of record systems and interconnectivity
  Support designs for program of record systems and special purpose processing nodes with platform IT interconnectivity.

• Implement vulnerability management processes using Tenable Nessus, ACAS, and Qualys to identify, assess, and remediate system vulnerabilities.
• Remediation collaboration
  Collaborate with system administrators, network engineers, ISSOs, and application teams to remediate security findings and implement secure configuration baselines.
• Security impact analysis
  Perform security impact analysis for system changes, software deployments, and infrastructure upgrades to ensure continued compliance and operational security.
• Security requirements evaluation
  Determine security requirements by evaluating business strategies and requirements, researching information security standards, conducting system security and vulnerability analyses and risk assessments, studying architecture and platforms, identifying integration issues, and preparing cost estimates.
• Cyber risk measurement framework
  Establish a framework by which cyber risk can be measured and quantified in the marketplace.

• Incident response and forensics
  Support incident response and forensic investigations by analyzing security logs, SIEM alerts, network traffic, and endpoint telemetry using Splunk Enterprise.
• Cyber event monitoring
  Monitor, analyze, and detect cyber events and incidents within information systems and networks under general supervision.
• Integrated cyber defense
  Assist with integrated, dynamic cyber defense.
• Security toolsets and continuous monitoring
  Coordinate and maintain security toolsets to support continuous monitoring and ongoing authorization programs.
• Evaluate cybersecurity tools
  Evaluate and implement cybersecurity tools and technologies to improve system security posture, continuous monitoring, and threat detection capabilities.

• Automation scripting
  Develop automation scripts using Power Shell, Bash, and Python to streamline vulnerability remediation, account auditing, compliance reporting, and security monitoring tasks.
• Endpoint protection and hardening
  Engineer endpoint protection and hardening solutions using Trellix ePO On-Prem, host-based firewalls, and application whitelisting technologies.
• Security systems implementation
  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, and completing documentation.
• Test scripts and verification
  Verify security systems by developing and implementing test scripts.
• Cyber Ark administration
  Administer, configure, and troubleshoot Cyber Ark core modules, including Enterprise Password Vault, Password Vault Web Access, Central Policy Manager, and Privileged Session Manager.

• Technical security documentation
  Produce technical security documentation,…