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Information System Security Engineer (ISSE) with Security Clearance

Job in Lanham, Prince George's County, Maryland, 20703, USA
Listing for: KBR
Full Time position
Listed on 2026-08-07
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer, Network Security, Information Security & Data Protection
Job Description & How to Apply Below
Title:

Information System Security Engineer (ISSE) Belong. Connect. Grow. with K ! K 's National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and national security communities. In this position, your work will have a profound impact on the country's most critical role - protecting our national security. Why Join Us?
* Innovative Projects: K 's work is at the forefront of engineering, logistics, operations, science, program management, mission IT and cybersecurity solutions.

* Collaborative Environment:
Be part of a dynamic team that thrives on collaboration and innovation, fostering a supportive and intellectually stimulating workplace.

* Impactful Work:
Your contributions will be pivotal in designing and optimizing defense systems that ensure national security and shape the future of space defense. 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 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 Power Shell, 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 Cyber Ark

* 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

* Responsible for the design, development, implementation, and integration of a DoD IA architectures, systems, or system components for use within computing, network, and enclave environments

* Ensure that the architecture and design of development and operational systems are functional and secure

* This includes designs for program of record systems and special purpose processing nodes with platform IT interconnectivity Work Environment:

* Location:

On-Site - 540 National Business Parkway, Annapolis Junction, MD

* Travel Requirements:
Minimal

* Working Hours:

Standard

Minimum Qualifications:

* Requires Top Secret clearance with SCI

* Must have a DoD 8570.1-M/8140 IAT Level III certification (SecurityX (CASP), GCIH, CISA, CISSP) compliant

* Strong background in networking (TCP/IP, firewalls, VPNs), cloud security (AWS/Azure), Kubernetes, and Dev Sec Ops

* Deep…
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