Senior Cybersecurity Engineer

Phoenix Operations Group • Charleston, SC

7h

About The Position

Phoenix Operations Group is seeking a Senior Cybersecurity Engineer to support the design, implementation, and protection of secure enterprise and cloud-based systems for critical government and national security missions. The role requires hands-on cybersecurity engineering experience across security architecture, vulnerability management, system hardening, risk mitigation, and regulatory compliance within government environments. The position is located in Charleston, South Carolina, or Springfield, Virginia.

The engineer will work with systems engineers, cloud architects, and DevSecOps teams to implement and maintain security solutions, support Risk Management Framework and Authorization to Operate processes, and contribute to continuous monitoring and compliance. An active U.S. Department of Defense security clearance is required; the specific clearance level and access requirements depend on contract requirements.

Phoenix Operations Group provides engineering services focused on protecting and strengthening national cyber resources. The company describes itself as small and invests in innovation and employee development. Its capabilities include Big Data analytics, cloud infrastructure, multi-INT visualization, and enterprise architecture, supporting All-Source, Financial, and CND operational missions.

Requirements

• Extensive experience in cybersecurity engineering, information assurance, or systems security.
• Strong understanding of NIST 800-53, RMF, and government security requirements.
• Experience with vulnerability assessment and remediation.
• Hands-on experience implementing DISA STIGs and security hardening.
• Experience with ACAS, Tenable, or comparable security assessment tools.
• Understanding of enterprise networking, operating systems, and cloud security.
• Strong analytical, troubleshooting, and technical documentation skills.
• Bachelor's degree in Cybersecurity, Computer Science, Information Technology, or a related discipline, or equivalent professional experience.
• Senior-level cybersecurity engineering experience.
• Must possess an active U.S. Department of Defense (DoD) security clearance; specific clearance level and access requirements are subject to contract requirements.

Nice To Haves

• Experience supporting DoD or Intelligence Community environments.
• Experience securing AWS, Azure Government, or classified cloud environments.
• CISSP, CASP+, Security+, or other relevant certifications.
• Experience with eMASS, Xacta, or other RMF platforms.
• Experience with DevSecOps and automated security controls.

Responsibilities

• Design, implement, and maintain cybersecurity solutions across enterprise and cloud environments.
• Conduct security assessments, vulnerability analysis, and remediation activities.
• Implement security controls in accordance with NIST 800-53 and applicable government standards.
• Support Risk Management Framework (RMF) activities and Authorization to Operate (ATO) processes.
• Perform security configuration reviews and system hardening.
• Implement and maintain DISA Security Technical Implementation Guides (STIGs).
• Use vulnerability management tools such as ACAS and Tenable.
• Conduct security architecture reviews and technical risk assessments.
• Collaborate with systems engineers, cloud architects, and DevSecOps teams.
• Develop cybersecurity documentation and remediation plans.
• Support continuous monitoring and security compliance initiatives.

Benefits

• Medical, dental, and vision insurance with premiums fully paid by the company.
• Short-term disability, long-term disability, and life insurance, fully paid by the company.
• Automatic 10% company contribution to the 401(k); no matching contribution is required.
• Four weeks of paid time off annually.
• Eleven paid holidays per year.
• Paid birthday leave.
• Upfront and annually recurring referral bonuses.
• Bonuses for contributing to company GitHub projects.
• Paid training, certifications, and professional enrichment opportunities.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior