Sr Cybersecurity ISSO

ERT, Inc.; Denver (CO); On-site; USD 135,000 - 155,000; Full time

Job summary

Entarian, formed through Sev1Tech and ERT, is seeking a senior Information System Security Officer (ISSO) to design, implement and manage security measures protecting our IT infrastructure. You will ensure integrity, confidentiality, and availability while safeguarding against cyber threats and maintaining compliance with DOD and industry practices.

The role involves creating security policies, coordinating with engineers on vulnerabilities, guiding system hardening to meet STIGs, and supporting

Qualifications

• Bachelor’s degree or equivalent with 10+ years in cybersecurity or related field.
• Security+ certification.
• CISSP or equivalent IAM Level II qualification.
• Experience leading Cybersecurity audits.
• Active TS clearance.
• Experience with monitoring tools and threat detection.

Responsibilities

• Create, review, and enforce security policies and procedures per DOD regulations and best practices.
• Identify vulnerabilities with network and system engineers across Windows, Unix, and network devices.
• Oversee system hardening to comply with DISA STIGs.
• Support and evaluate Authority to Operate (ATO) using NIST controls in FISMA Moderate/High environments.
• Develop and participate in Contingency Planning and Incident Response testing and execution.
• Perform risk assessments and develop mitigation strategies.
• Scan, patch, remediate, and document vulnerabilities in OSs and apps.
• Assist and lead security audits.

Skills

Security+ Certification

CISSP / IAM II

Audits

Threat understanding

TS clearance

Disaster recovery/IR planning

NIST controls

Vulnerabilities scanning

InfoSec governance

Education

Bachelor's Degree in Cybersecurity/CS/Systems Eng/IT or related field or 10+ years experience

Tools

Elastic stack

ACAS (Tenable)

Job description

Sr Cybersecurity ISSO

Contract: Full Time W/Benefits Ret Match

Location: US-CO-Denver, Secondary Location: US-CO-Colorado Springs

Security Clearance: Interim TS

Entarian is seeking a highly skilled and motivated senior Information System Security Officer (ISSO) to join our dynamic team. The ideal candidate will have a strong background in cybersecurity, with experience in designing, implementing, and managing security measures to protect our IT infrastructure. This role involves ensuring the integrity, confidentiality, and availability of our systems and data by safeguarding against cyber threats and ensuring compliance with DOD and industry regulations and best practices.

• Create, review, and enforce security policies and procedures that adhere to DOD regulations and industry best practices
• Work closely with network engineers and system engineers on the identification of vulnerabilities on all network assets, including but not limited to Windows, Unix, and Network devices
• Oversee and assist system administrators with interpretation, remediation, and hardening of systems to comply with DISA Security Technical Implementation Guides (STIGs)
• Support customer Information System Security Manager in maintaining the system's Authority to Operate (ATO) support by evaluating NIST controls in both a FISMA Moderate and High Environment
• Develop and participate in Contingency Planning (CP) and Incident Response (IR) testing, planning, and execution
• Perform risk assessments to identify potential security threats and develop appropriate mitigation strategies
• Scan, patch, remediate, provide mitigation strategies, and document security vulnerabilities in operating systems and applications
• Assist and lead security audits

Salary range $135,000-$155,000

Minimum Qualifications

• Bachelor's Degree in Cybersecurity, Computer Science, Systems Engineering, Information Technology or related field or experience equivalent with 10+ years of relevant work experience
• Security+ Certification
• CISSP or similar DODM 8140 IAM Level II qualification (e.g. - CISM, CASP+ CE. Etc.)
• Experience leading Cybersecurity/Information Security audits
• Thorough understanding of cyber threats, information security, and monitoring & detection using the latest monitoring tools
• Experience configuring Elastic stack and ACAS (Tenable) scans and dashboards
• Position requires some travel to Colorado Springs and Boulder
• Active Top Secret clearance

Desired Qualifications

• Knowledge of networking protocols (TCP/IP, DNS, HTTP/S, etc.) and their associated common attack vectors
• Knowledge of/experience with space mission systems
• Experience working in Department of Defense or with Department of Defense or Federal contracts

About Us

Formed through the strategic union of Sev1Tech and ERT, Entarian is a premier provider of mission-critical engineering and technology solutions. Founded on a legacy of excellence dating back to 1993, Entarian is a product of an evolved and fully diversified engineering and federal technology leader. From deep space to defense and civilian missions, Entarian delivers secure, mission-aligned digital solutions that drive national resilience and operational effectiveness. We don't just support modernization; we define it.

Join the Mission and Start your Career Journey:

Entarian is an Equal Opportunity and Affinitc Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.