COMSEC/Cybersecurity Engineer II (Clearance Required)
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Before you apply
Salary$96k – $133k
LocationLouisville, CO; Centennial, CO
Typefull-time
SeniorityMid
Experience2+ yrs
Company size1,001–5,000 people
PostedOct 6, 2026 · 4w ago
Verified live1d ago
At a glanceSummarised by Seekless from the posting.
Bachelor's degree in a related field (or equivalent work experience in lieu of degree)
COMSEC experience
Active clearance required
2+ years of related experience
One or more of GIAC, CCNP, or SANS level 200 courses
Knowledge of secure software development
Knowledge of cyber supply chain threat monitoring
TS/SCI w/CI Poly (preferably)
CySA+ certification
GSEC certification
CCSP certification
CISA certification
CISM certification
CISSP certification
Experience with SIEM tools
Familiarity with cloud security platforms such as AWS, Azure, or Google Cloud
Knowledge of network security protocols and practices
Strong problem-solving skills and attention to detail
Excellent communication and teamwork skills
Familiarity with the system development lifecycle
Proficiency in scripting languages such as Python, PowerShell, or Bash for automation of security tasks
Experience with endpoint detection and response (EDR) solutions
Understanding of regulatory compliance requirements such as GDPR, HIPAA, or PCI-DSS
Experience with identity and access management (IAM) solutions
Knowledge of threat intelligence platforms and their integration into security operations
Familiarity with DevSecOps practices and tools
Experience with incident response and digital forensics
Understanding of zero trust architecture principles
Equal opportunity employer and reasonable accommodations for disabilities
Skills
Python
PowerShell
Bash
AWS
Azure
Google Cloud
SIEM
EDR
IAM
DevSecOps
incident response
digital forensics
zero trust
firewalls
encryption
multi-factor authentication
IDS/IPS
threat intelligence platforms
Benefits
Health insurance
Dental insurance
Vision insurance
401(k)
Life insurance
Paid time off
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 Role
The Cybersecurity Engineer II is a mid-level position responsible for designing, implementing, and maintaining advanced security measures to protect the organization’s information systems. This role involves working with various security technologies, including encryption, intrusion detection/prevention systems (IDS/IPS), and multi-factor authentication. They will have a solid understanding of computer networking concepts, protocols, and network security methodologies, as well as an understanding of cybersecurity and privacy principles, secure software development and cyber supply chain threat monitoring. The Cybersecurity Engineer II will work closely with senior engineers and cross-functional teams to ensure the security and integrity of the organization’s information systems. This position offers the opportunity to work on complex security projects, stay updated with the latest industry trends, and contribute to the continuous improvement of the organization’s security posture.
Responsibilities
In this role, you will design, implement, and maintain advanced security measures, including firewalls, encryption, intrusion detection/prevention systems (IDS/IPS), and multi-factor authentication. You will assist in the configuration, deployment, and management of security tools and technologies, while implementing and managing network security measures to protect data, systems, and networks. Conducting vulnerability assessments and penetration testing to identify and mitigate security risks will be a key responsibility, along with developing and maintaining security policies, procedures, and documentation. You will collaborate with cross-functional teams to integrate security best practices into system designs and deployments, monitor and respond to security incidents and alerts, and provide technical support and troubleshooting. Staying updated with the latest industry trends, emerging threats, and regulatory requirements will be essential, as will participating in security audits and assessments to ensure compliance with cybersecurity frameworks. Additionally, you will apply secure software development practices to enhance application security, monitor and address cyber supply chain threats to protect the integrity of the organization’s supply chain, and provide input on cybersecurity requirements for new projects and technologies.
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.
Minimum Qualifications:
•
Requires Bachelor’s degree in a related field (or equivalent work experience in lieu of degree).
•
COMSEC experience
•
Active clearance required; preferably a TS/SCI w/CI Poly
•
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.
Preferred Qualifications:
•
Certifications: CySA+, GSEC, CCSP, CISA, CISM, CISSP.
•
Experience with security information and event management (SIEM) tools.
•
Familiarity with cloud security platforms such as AWS, Azure, or Google Cloud.
•
Knowledge of network security protocols and practices.
•
Strong problem-solving skills and attention to detail.
•
Excellent communication and teamwork skills.
•
Familiarity with the system development lifecycle.
•
Proficiency in scripting languages such as Python, PowerShell, or Bash for automation of security tasks.
•
Experience with endpoint detection and response (EDR) solutions.
•
Understanding of regulatory compliance requirements such as GDPR, HIPAA, or PCI-DSS.
•
Experience with identity and access management (IAM) solutions.
•
Knowledge of threat intelligence platforms and their integration into security operations.
•
Familiarity with DevSecOps practices and tools.
•
Experience with incident response and digital forensics.
•
Understanding of zero trust architecture principles.
Compensation:
Pay Range:
$96,402.00 - $132,552.00
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.