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Sierra Space

Information System Security Officer II (TS/SCI Clearance Required)

Sorry, this job was removed at 08:19 p.m. (MST) on Tuesday, Feb 24, 2026
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Sierra Space Careers:

At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth.  


Sierra Space team members share a spirit of innovation and collaboration and a belief that we can deliver on the boldest missions in space today. Together with our customers, we aim to safeguard our nation, sustain human presence in space, and secure the freedom of operations in low Earth orbit and beyond.  

Our success is measured by the trust of those who rely on what we build and deliver, and our technologies keep the United States and its allies mission-ready throughout space.

We are mission-driven, and together, we are an extraordinary team.

About the RoleWe are seeking a highly skilled and experienced Information Systems Security Officer (ISSO) with a strong emphasis on the Risk Management Framework (RMF). The ISSO will be responsible for ensuring the security and integrity of our information systems by implementing and managing security measures in accordance with RMF guidelines. The ideal candidate will have a deep understanding of RMF processes, cybersecurity principles, and compliance requirements.About You

Our mission is driven by an unyielding commitment to advancing space-based technology in service of our customers and safeguarding national security. We seek individuals who are passionate about innovating beyond boundaries and relentlessly pursuing solutions that protect, preserve and empower – to join us in this critical mission.  

We’re looking for team members who align with our values, mission and goals – while also meeting the minimum qualifications below. The preferred qualifications are a bonus, not a requirement.

Key Responsibilities:

  • Develop, implement, and maintain security policies, procedures, and controls in accordance with RMF guidelines.

  • Conduct risk assessments to identify potential security threats and vulnerabilities.

  • Develop and maintain System Security Plans (SSPs) and other required documentation.

  • Ensure compliance with federal, state, and organizational security regulations and standards.

  • Perform continuous monitoring of information systems to detect and respond to security incidents.

  • Collaborate with system owners, administrators, and other stakeholders to ensure security controls are effectively implemented.

  • Conduct security control assessments and audits to evaluate the effectiveness of security measures.

  • Provide guidance and support for the development and implementation of security controls.

  • Prepare and present security status reports to management and other stakeholders.

  • Stay current with emerging security trends, threats, and technologies.

Minimum Qualifications: 

  • Requires Bachelor's degree in a related field (or equivalent work experience in lieu of degree). 

  • Typically 2+ years of related experience. 

  • Certifications: (1 or more required) GIAC (Global Information Assurance Certification), network technology 

  • certifications such as a CCNP (Cisco Certified Network Professional), or SANS level 200 courses. 

  • Knowledge of secure software development. 

  • Knowledge of cyber supply chain threat monitoring.

  • An active Top Secret with SCI eligibility and the ability to obtain a CI polygraph U.S. Security Clearance. 

Preferred Qualifications:

  • In-depth knowledge of RMF processes, NIST SP 800-37, NIST SP 800-53, and other relevant standards.

  • Experience with security assessment and authorization (A&A) processes.

  • Strong understanding of cybersecurity principles, including risk management, incident response, and vulnerability management.

  • Relevant certifications such as CISSP, CISM, CAP, or similar are highly desirable.

  • Excellent analytical, problem-solving, and communication skills.

  • Ability to work independently and as part of a team in a fast-paced environment.



Compensation:

Pay Range:

$94,050.00 - $129,318.75

Your actual base compensation will be determined on a case-by-case basis and may vary based on job-related knowledge and skills, education, experience, internal equity and market competitiveness.

Elevate Your Career

At Sierra Space, we are committed to your personal and professional development. We empower you to make profound and meaningful contributions and foster a vibrant culture of collaboration, where teamwork ignites breakthrough innovations. 

 
We also offer a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 6%, life insurance, 3 weeks paid time off, and more.

Sierra Space is an industry-leading space and defense technology company providing satellites, spacecraft, and enabling mission systems and components. We deliver mission-proven technologies to our customers that safeguard our nation, protect space-based assets and enable space exploration.

Application Deadline: This role will remain posted until a qualified pool of candidates is identified.

Please note: Sierra Space does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to Sierra Space team members not through our approved vendor list or Talent Acquisition will be considered property of Sierra Space, and we will not be obligated to pay any referral fees.

Sierra Space Corporation is an equal opportunity employer and is committed to working with and providing reasonable accommodations to applicants with disabilities. If you need special assistance or a reasonable accommodation related to applying for employment with Sierra Space or at any stage of the recruitment process, please contact us.

HQ

Sierra Space Louisville, Colorado, USA Office

2000 Taylor Ave., Louisville, CO, United States, 80027

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