> Markdown version of [/jobs/ext/4686794-cybersecurity-engineer-iii](https://www.wearedevelopers.com/jobs/ext/4686794-cybersecurity-engineer-iii). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Cybersecurity Engineer III - **Company:** Sierra Space - **Location:** Centennial, CO, United States - **Experience:** Experienced - **Salary:** $122,109 - $167,899 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Microsoft Azure, Cyber Security, Information Systems, Information Leak Prevention, Multi-Factor Authentication, Identity and Access Management, Intrusion Detection and Prevention, Intrusion Detection Systems, Python (Programming Language), Windows PowerShell, Anti-Phishing, Trusted Systems, Scripting, Computer Network Technologies, Okta, Cyberark, RSA SecurID, Cisco - **Published:** November 12, 2026 - **Apply:** https://diversityjobs.com/career/18900107/Cybersecurity-Engineer-Iii-Colorado-Centennial ## About the Role * Requires Bachelor's degree in a related field (or equivalent work experience in lieu of degree or Masters +3 years experience). * Typically 5+ 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 300 courses., * Hands-on experience administering IAM platforms like CyberArk, BeyondTrust, Okta, or comparable privileged access management tools. * Experience administering Multi-Factor Authentication platforms like RSA SecurID, Cisco Duo, Okta MFA or comparable MFA systems. * Experience with multi-factor authentication deployment at enterprise scale. * Experience with platforms like Cofense, KnowBe4, Proofpoint or comparable phishing analysis and simulation platforms. * Experience designing and running security awareness training and phishing simulation programs. * Experience with Microsoft Purview, Microsoft Azure, or Microsoft 365 data loss prevention and security administration. * Certifications: CCSP, CISA, CISM, CISSP, or equivalent. * Proficiency in scripting languages such as Python, PowerShell, or Bash for automation of security tasks. * Strong problem-solving skills, attention to detail, and excellent communication and teamwork skills. ## Description About the RoleThe Cybersecurity Engineer III is 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 (MFA). The successful candidate will have extensive knowledge of secure systems architecture, emerging technologies, threats, and regulatory requirements. The Cybersecurity Engineer III 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., * Administer Identity and Access Management platform including managing user access and maintaining the platform. * Maintain on-prem hardware that hosts IAM platforms, and plan and execute migration off end-of-life hardware and software. * Administer on-prem MFA implementations, including renewal of token license keys. * Own the MFA configuration and deployment across the enterprise, including the Duo admin portal, policies, and enrollment. * Administer phishing email security platform, including tuning, maintenance, and updates for phishing analysis and reporting. * Maintain the enterprise phishing reporting functionality and deploy updates as needed. * Lead the phishing simulation and security awareness training program, including campaign design, scheduling, and reporting. * Build, tune, and administer data loss prevention (DLP) policies. * Develop and maintain security policies, procedures, and documentation. * Monitor and respond to security incidents and alerts, providing technical support and troubleshooting. * Collaborate with cross-functional teams to integrate security best practices into system designs and deployments. * Document operational procedures and institutional knowledge in writing to support continuity of the team. 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.