Cybersecurity Engineer – Cyber Defense Operations (ISSE)

The role

The Cybersecurity Engineer will support the security posture, compliance, and accreditation of enterprise systems in a secure DoD environment. This role involves maintaining cybersecurity readiness, supporting Risk Management Framework processes, and ensuring the confidentiality, integrity, and availability of mission critical systems.

What you will do

• Serve as a hands-on cybersecurity technical authority providing guidance and solving complex security challenges.
• Advise architects, system owners, engineers, administrators, and cybersecurity personnel on security requirements and design.
• Assess system architectures, configurations, technologies, and proposed solutions to identify vulnerabilities and risks.
• Perform vulnerability assessment and remediation using ACAS, Tenable/Nessus, SIEM, and other tools.
• Apply, validate, and troubleshoot DISA STIGs, SCAP benchmarks, security controls, and configuration baselines.
• Support incident response, Continuous Monitoring, vulnerability management, and ongoing assessment of system security posture.
• Implement and validate cybersecurity controls across operating systems, applications, networks, endpoints, and enterprise infrastructure.
• Identify opportunities to automate security assessments, vulnerability management, and configuration validation.
• Evaluate emerging technologies and architectural changes to identify cybersecurity requirements and technical risks.
• Provide technical expertise supporting RMF, ATO, and continuous authorization including SSPs, POA&Ms, and eMASS.

Required qualifications

• BS degree in Engineering, Computer Science, or related field or experience may be substituted for degree
• TS/SCI Clearance
• DoD 8140 (8570) IAT Level II Certification
• Minimum 4 years of hands-on cybersecurity engineering experience
• Strong knowledge of cybersecurity engineering principles and DoD cybersecurity requirements
• Experience assessing system architectures and technical implementations
• Hands-on experience with vulnerability management, system hardening, DISA STIGs, SCAP, ACAS, Tenable/Nessus, and remediation of technical findings
• Strong working knowledge of Windows and Linux systems, networking, authentication, access controls, and enterprise security technologies
• Experience implementing, assessing, and validating security controls across systems, applications, networks, and enterprise environments
• Practical knowledge of RMF, Continuous Monitoring, NIST SP 800-53, eMASS, POA&Ms, SSPs, and ATO processes
• Ability to independently analyze complex cybersecurity problems and communicate risks to leadership
• Experience with Microsoft Copilot and / or an approved equivalent AI solution

Nice to have

• CISSP, CGRC/CAP, CISM, CASP+/SecurityX, CySA+, CEH, or other relevant advanced cybersecurity certification
• Experience with SIEM, endpoint security, IDS/IPS, firewalls, incident response, or defensive cyber operations
• Experience with Zero Trust, ICAM, cloud security, DevSecOps, data-centric security, continuous authorization, or software supply chain security
• Experience evaluating AI/ML technologies and providing cybersecurity guidance for their secure integration
• Experience with PowerShell, Python, Ansible, APIs, or other scripting and security automation technologies
• Experience integrating cybersecurity requirements into system architecture, modernization, emerging technologies, and technology refresh efforts

Before you apply

• Security clearances may only be granted to U.S. citizens
• Applicants may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information
• DSA requires background checks

About the company

Data Systems Analysts, Inc. (DSA) is seeking a TS/SCI-cleared Cybersecurity Engineer to support the security posture, compliance, and accreditation of enterprise systems in a secure DoD environment.