Cybersecurity Jobs in Beavercreek, OH

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30d ago

Cybersecurity ISSE

Leidos Beavercreek, OH

Beavercreek, OH

30d ago Closed

$87k - $157k/yr Full time Cybersecurity Tools Engineer Identity and Access Management

This position is no longer accepting applications (closed Aug 19, 2026).

Job Description

Leidos is seeking a Cybersecurity Information System Security Engineer (ISSE) to design, integrate, and validate cybersecurity solutions across mission systems and lab/test environments. This on-site role is located in Beavercreek, OH near Wright Patterson AFB and supports RMF authorization and program compliance. The position offers a salary range of USD 87,100 - 157,450 per year.

Responsibilities

Engineer cybersecurity solutions for mission systems, software applications, networks, lab environments, and integrated hardware/software platforms throughout the system lifecycle.
Convert cybersecurity requirements, NIST SP 800-53 controls, RMF objectives, customer requirements, and mission needs into actionable designs, configurations, and verification methods.
Develop, review, and maintain cybersecurity architecture artifacts, including security design descriptions, network boundary diagrams, data flow diagrams, control implementation details, interface descriptions, and system hardening approaches.
Support cybersecurity design decisions for tactical networking and communications environments, addressing boundary protection, segmentation, authentication, encryption considerations, logging visibility, and tradeoffs in constrained settings.
Collaborate with software, hardware, network, and systems engineering teams to implement secure configurations, authentication and authorization mechanisms, logging, encryption, boundary protections, vulnerability mitigations, and secure interfaces.
Assist with secure system integration in Software Integration Laboratory and test environments, covering Linux system hardening, scripting/automation, vulnerability remediation, tool integration, and security configuration management.
Conduct technical security assessments of systems, components, and configurations to identify design gaps, weaknesses, vulnerabilities, and cyber risk; propose and implement remediation plans.
Lead or support vulnerability management activities, interpret scan results from Tenable Nessus, SCAP, STIG, ACAS, or similar tools; validate findings; develop fixes; coordinate remediation with engineers; verify closure.
Design and implement mitigations for vulnerabilities uncovered during system scans, security audits, integration events, ground tests, and flight-test preparations.
Support the implementation and validation of security controls, documenting how controls are satisfied, identifying residual risk, and providing objective evidence for RMF authorization packages.
Participate in design reviews, engineering review boards, configuration control boards, cyber risk reviews, and test readiness events to ensure cybersecurity considerations are addressed prior to deployment.
Develop or contribute to cybersecurity test procedures, security verification methods, risk assessments, and technical inputs for RMF artifacts, POA&Ms, system security plans, and authorization documentation.
Evaluate cybersecurity events, anomalies, and system deficiencies to determine technical impact, root cause, mission risk, and corrective actions.
Collaborate with ISSMs, ISSOs, system owners, and customer stakeholders to align technical cybersecurity implementations with program compliance, authorization, and operational objectives.
Support continuous improvement of cybersecurity engineering practices, including automation, secure configuration baselines, vulnerability remediation playbooks, and repeatable lab/test environment security processes.

Requirements

Bachelor’s degree in computer science, IT, cybersecurity or a related field with 4+ years of experience in the Cybersecurity ISSE discipline; an additional 4 years of experience may substitute for a degree.
U.S. Citizenship is required.
Active DoD Top Secret clearance with the ability to obtain and maintain TS/SCI.
Security+ (8570) certification.
Experience working in a Software Integration Laboratory environment.
Strong working knowledge of Linux systems, including the ability to write Bash scripts and modify Linux security configurations.
Solid understanding of information security policies, principles, and practices in IT service delivery.
Proficiency with implementing security controls in line with NIST SP 800-53A.
Experience with policies and procedures ensuring information system confidentiality, integrity, and accessibility.
Experience conducting risk and vulnerability assessments to identify vulnerabilities and protection needs.
Experience documenting system deficiencies and proposing remediation strategies.
Familiar with automated vulnerability scanning tools such as Tenable Nessus, SCAP, or similar.
Experience participating in security evaluations, audits, and reviews.
A demonstrated ability to learn new technologies, tools, and engineering practices supporting ISSE duties, including secure design, control implementation, remediation, hardening, and test/validation activities.
Strong written and verbal communication skills, with the ability to engage in one-on-one discussions or small-group settings.
Able to work in a dynamic environment and manage multiple tasks concurrently.

Technologies

Linux
bash
Tenable Nessus
SCAP
STIG
ACAS
Splunk
Elastic
Security Onion
Zeek
Suricata
rsyslog
syslog-ng
auditd
JIRA
Confluence
Bitbucket

Benefits

Competitive compensation
Health and Wellness programs
Income Protection
Paid Leave
Retirement

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