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Information Systems Security Engineer (ISSE) jobs in United States
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ExoAnalytic Solutions · 12 hours ago

Information Systems Security Engineer (ISSE)

ExoAnalytic Solutions is a defense technology company developing cutting-edge sensor signal processing and analytics tools for national defense. The Information Systems Security Engineer (ISSE) will conduct information system security engineering activities, focusing on the full lifecycle of systems and implementing security requirements within information systems.
Information Technology
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Growth Opportunities
badNo H1BnoteSecurity Clearance RequirednoteU.S. Citizen Onlynote

Responsibilities

Develops, documents, and implements cybersecurity architecture and security engineering solutions for classified systems
Ensures system design aligns with DoD architecture frameworks, DoDI 5000-series systems engineering processes, and platform-specific security policies
Applies security principles and technologies such as encryption, cross-domain solutions (CDS), Zero Trust, and endpoint security to system designs
Supports all phases of the DoD RMF process, including:
+ Categorize System
+ Select & Implement Security Controls
+ Assess Controls
+ Authorize System
+ Continuous Monitoring
Develops RMF artifacts such as:
+ System Security Plan (SSP)
+ Security Controls Traceability Matrix (SCTM)
+ Security Assessment Procedures
+ POA&M entries and mitigation documentation
Ensures compliance with DoDI 8510.01, JSIG, NIST SP 800‑37, NIST SP 800‑53, and CNSSI 1253
Participates in Integrated Product Teams (IPTs) to embed security into requirements, design reviews, test planning, and deployment strategies
Reviews engineering change proposals (ECPs) and configuration updates for security impacts
Supports software development teams in DoD DevSecOps pipelines and secure coding practices
Performs or supports security assessments, DISA STIG reviews, and vulnerability scans (ACAS/Nessus)
Works with Security Control Assessors (SCAs), Authorizing Officials (AOs), and Assessment & Authorization (A&A) teams during security evaluations
Reviews test results, mitigates vulnerabilities, and verifies closure of cybersecurity findings
Provides security engineering expertise to system architects, infrastructure teams, program managers, and mission owners
Develops and presents security briefings to leadership and accreditation authorities
Advises on emerging DoD cybersecurity directives, Zero Trust policies, and new STIG requirements

Qualification

Cybersecurity engineeringRisk Management Framework (RMF)DoD complianceZero Trust architectureDevSecOps pipelinesSecurity+ CECISSPCommunication skillsProblem-solving skillsDocumentation skills

Required

Bachelor's degree in Cybersecurity, Computer Science, Engineering, Information Systems, or a related technical field, or equivalent practical experience
Experience cybersecurity engineering, information assurance, or information system security engineering supporting DoD or IC programs
Hands-on experience supporting DoD Risk Management Framework (RMF) activities across one or more system lifecycles
Strong problem-solving, documentation, and communication skills
U.S. citizenship required, with eligibility to obtain and maintain a Top-Secret security clearance

Preferred

Top-Secret clearance with SCI eligibility
7-10+ years of cybersecurity engineering experience supporting DoD programs
DoD 8570/8140 compliance (one of the following required/preferred): Security+ CE, CASP+ CE, CISSP / CISSP-ISSEP, GSEC or similar
Experience with DoD cloud environments
Familiarity with Zero Trust architecture implementation
Knowledge of DevSecOps pipelines (e.g., Platform One, GitLab, Jenkins, Kubernetes)
Background in network security, PKI, endpoint protection, and identity management
Strong communication and writing skills for working with AOs, SCAs, and engineering teams

Benefits

Company-paid medical, vision, and dental coverage
401(k) Retirement Plan with a 6% company contribution (no employee match required)
Ample paid personal time off, including holidays
Short- and long-term disability insurance and life insurance
Additional discounts and perks to support your well-being
Flexible scheduling and structured freedom that empower innovation and work-life balance

Company

ExoAnalytic Solutions

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ExoAnalytic Solutionsis a defense and space company providing missile defense, modelling, and simulation services.

Funding

Current Stage
Growth Stage

Leadership Team

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Douglas Hendrix
CEO
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Company data provided by crunchbase