TS/SCI Cybersecurity Engineer | RMF, DoD & Cloud

D2 Technical Services; St. Louis (MO); On-site; USD 125,000 - 135,000; Full time

Benefits offered by this job

Health/Dental/Vision

401(k) match

PTO accrual

STD/LTD/Life Insurance

Referral bonuses

Professional development reimbursement

Job summary

D2 Technical Services is seeking a senior Information Security Engineer with a TS/SCI clearance to join our team supporting a DoD/IC environment in Springfield, VA or Arnold, MO. You will implement RMF controls, STIGs, and vulnerability remediation across Windows, Linux, network, virtualization, and cloud environments.

You will work hands-on with ACAS, HBSS, Carbon Black, Tanium, and RedSeal, drive A&A activities, and coordinate with infrastructure teams to maintain a secure, compliant operating

Qualifications

• Bachelor’s Degree in Computer Science, Engineering, Cybersecurity, Information Technology or related field (or equivalent).
• 5+ years of experience in data security administration or equivalent.
• Experience implementing RMF throughout system lifecycle.
• Strong knowledge of NIST SP 800-53, ICD 503, and DoD security policies.
• Hands-on experience with STIGs across Windows, Linux, network, and cloud environments.
• Experience remediation for vulnerabilities identified via ACAS, STIG reviews, or other tools.
• Experience with A&A documentation and RMF continuous monitoring.
• Experience with security tools such as ACAS, HBSS, Carbon Black, Tanium, RedSeal or similar.
• Experience scripting in Unix/Linux (RHEL), Bash, Python, and PowerShell.
• Strong analytical, troubleshooting and communication skills.

Responsibilities

• Act as ISSM representative ensuring compliance with DoD/IC information security policies.
• Operate, maintain, dispose of information system materials per RMF and SSPs.
• Implement and maintain STIGs across servers and cloud environments.
• Remediate vulnerabilities and validate remediation evidence.
• Manage POA&Ms and support A&A/RMF activities.
• Support RMF continuous monitoring and A&A documentation.
• Provide cybersecurity awareness training.
• Respond to security incidents and maintain enterprise network security infrastructure.
• Develop automation/scripts to improve security operations.
• Collaborate with systems, network, and cloud teams on secure architectures.

Skills

RMF expertise

NIST SP 800-53

Security policies

Vulnerability remediation

Scripting (PowerShell/Bash/Python)

Incident response

System hardening

Education

Bachelor’s Degree in CS/Engineering/Cybersecurity/IT

Tools

ACAS

HBSS

Carbon Black

Tanium

RedSeal

AWS cloud security

Job description

D2 Technical Services is seeking a senior Information Security Engineer with a TS/SCI clearance to join our team supporting a DoD/IC environment in Springfield, VA or Arnold, MO. You will implement RMF controls, STIGs, and vulnerability remediation across Windows, Linux, network, virtualization, and cloud environments.

You will work hands-on with ACAS, HBSS, Carbon Black, Tanium, and RedSeal, drive A&A activities, and coordinate with infrastructure teams to maintain a secure, compliant operating