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Phoenix Operations Group

Senior Cybersecurity Engineer

Charleston, SC, United States

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Job details

Posting language: English
Posted: Nov 12, 2026

Original job description

Description

Phoenix Operations Group is seeking a Senior Cybersecurity Engineer to support the design, implementation, and protection of secure enterprise and cloud-based systems supporting critical government and national security missions. The successful candidate will bring hands-on cybersecurity engineering experience across security architecture, vulnerability management, system hardening, risk mitigation, and regulatory compliance within government environments.

Location: Charleston, SC or Springfield, VA

Key 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).
Utilize 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.

Requirements

Required Qualifications

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.

Preferred Qualifications

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.

Education and Experience Bachelor's degree in Cybersecurity, Computer Science, Information Technology, or a related discipline, or equivalent professional experience. Senior-level cybersecurity engineering experience required.

Security Clearance Must possess an active U.S. Department of Defense (DoD) security clearance. Specific clearance level and access requirements are subject to contract requirements.

Benefits Offered

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.

About Phoenix Operations Group

Phoenix Operations Group delivers advanced engineering services that protect and strengthen our nation’s cyber resources. As a small company, we invest in innovation and employee development to solve challenging customer problems. Our capabilities span batch and streaming Big Data analytics, cloud infrastructure, multi-INT visualization, and enterprise architecture. We support All-Source, Financial, and CND operational missions and serve as Product Owners for our open-source research initiatives. Learn more at www.phoenix-opsgroup.com.

Equal Employment Opportunity Employment decisions at Phoenix Operations Group are based on qualifications, merit, and business needs. We provide equal employment opportunities without discrimination based on race, religion, color, sex, gender, gender identity, sexual orientation, age, non-disqualifying physical or mental disability, national origin, veteran status, or any other legally protected basis.

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More about this job

Skills

Cybersecurity
Regulatory compliance
Risk management
Documentation
Security regulations
Troubleshooting
AWS
Microsoft Azure
CISSP
Security+
eMASS
Computer science
Computer technology

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Jobs in the United States