Cisco

Senior Linux Security Engineer

Cisco$118K — $160K *
US-Anywhere
+ 6 other locationsRemote
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 6+ years of experience with Linux security, including Sudoers and SELinux hardening principles.
  • 6+ years in managing large-scale IT infrastructure (compute, network, or storage).
  • Proficiency in developing and hardening Linux OS images and deploying via CI/CD pipelines.
  • Familiarity with security scanning tools like SAST, DAST, SCA, and secrets detection.
  • Experience leveraging DevOps tools including Ansible, GitHub, Python, Docker/Podman.

Responsibilities

  • Implement security policies within Cisco IT infrastructure as part of the Prime Security Advocates team.
  • Collaborate with Security and Trust teams to identify areas for improvement in security engineering.
  • Validate security posture for AI infrastructure through patching, vulnerability scanning, and management of open-source software.
  • Act as a key contact for security incidents, vulnerability management, and security solutions implementation.
  • Contribute to modernizing Linux OS build systems with advanced automation and secure configurations.
  • Define strategy for adopting and integrating security monitoring platforms.
  • Engage in incident response investigations supporting organizational security objectives.

Benefits

  • Participation in a cross-functional team focusing on security advocacy.
  • Opportunities to enhance skills in security engineering and infrastructure management.
  • Collaborative work environment with Security and Trust teams.
  • Involvement in cutting-edge AI infrastructure security initiatives.
  • Contribution to a significant modernization of IT engineering practices.
Full Job Description
The application window is expected to close on: 06/30/2026
Job posting may be removed earlier if the position is filled or if a sufficient number of applications are received.

Your Impact

Responsible for security engineering and operations supporting Cisco IT compute and AI infrastructure, actively participating in the Security cross-functional team of Prime Security Advocates to implement security policies across Cisco IT infrastructure. Collaborates with Security and Trust teams to identify improvement areas and develop engineering solutions, validates security posture for AI infrastructure including patching, vulnerability scanning, software development, and open-source software management. Serves as a key point of contact for security issues, incident response, vulnerability management, and implementation of security solutions. Contributes to modernizing Linux Operating System build systems through advanced automation and secure-by-default configurations, acts as a technical resource for embedding security practices into all aspects of Cisco IT engineering including code development, integrated security scanning, and code analytics review to address security issues pre-release. Participates in defining strategy and maintaining the roadmap for adoption, expansion, and integration of security monitoring platforms, and engages in incident response investigations and response activities to support organizational security objectives.

Minimum Qualifications

  • 6+ years of experience with Linux security (Sudoers, SELinux, and other hardening principles).
  • 6+ years of experience in large-scale IT infrastructure, including compute, network, or storage systems.
  • Experience Linux Operating System image / ISO development, hardening, and deployment through CI/CD pipelines.
  • Experience with security scanning tools and agents covering SAST, DAST, SCA, and secrets detection.
  • Experience working with DevOps Infrastructure-as-Code (IaaS) tooling including Ansible, GitHub, Python, Docker/Podman.

Preferred Qualifications:

  • Understanding of private and public cloud infrastructure and what it takes to run infrastructure as code at scale.
  • Good understanding of network-based and host-based firewalls.
  • Experience with Privileged Access Management (PAM) tools like Delinea, BeyondTrust, or Cyberark.
  • Understanding of directory services like Active Directory and LDAP.
  • Experienced with agile software development process, vendor engagement, and product evaluations.

About Cisco

Cisco Careers

Join the vibrant team at Cisco, a global leader in networking and cybersecurity solutions, where innovation and leadership thrive. Cisco offers a plethora of job opportunities that cater to a range of skills and experiences, making it an ideal place for both seasoned professionals and those seeking an internship to jumpstart their career. Work You’ll Do At Cisco, you’ll be part of a culture that values diversity, leadership, and professional growth. Engage in work that matters with a team that combines technology, creativity, and the power of human connection to redefine networking. Cisco’s commitment to innovation isn’t just about technology, but also about transforming the way we work and collaborate. Cisco’s employment philosophy supports career advancement and nurtures a leadership pipeline that is equipped with diversity training and opportunities for growth. Whether you’re applying your skills to drive our latest innovations or using our vast networking capabilities to solve complex problems, at Cisco, every role is impactful. Join Our Dynamic Team Explore job opportunities in areas ranging from engineering to marketing, sales to cybersecurity. Cisco is hiring individuals who are passionate, curious, and ready to drive change. Positions at Cisco offer competitive benefits, a supportive culture, and the chance to work with cutting-edge technology. Internship Programs Kickstart your career with a Cisco internship. Gain invaluable industry experience, enhance your resume, and build professional networks that last a lifetime. Our internships provide hands-on experience and the chance to work on projects that matter. Leadership and Development Cisco is committed to fostering leadership skills and providing employees with the training needed to succeed. Our leadership programs help you develop new skills, manage teams effectively, and lead with confidence. Cisco’s commitment to professional development ensures that your career path is as dynamic as our technologies. Benefits and Culture Cisco understands the importance of a balanced life. Our benefits package is designed to ensure that our team members are healthy, happy, and secure. At Cisco, you’ll find a supportive culture that encourages open communication, teamwork, and mutual respect. Stay Connected Join Cisco’s Talent Network Stay informed about new positions that match your skills and interests. At Cisco, we value the curiosity and unique perspectives of our team members. Subscribe to receive personalized job alerts and insider tips directly from our hiring managers. Explore Cisco Jobs Ready to advance your career at Cisco? Search open positions, prepare your resume, and get ready for an interview that could lead to your next big opportunity. At Cisco, we’re not just filling positions—we’re investing in leaders. Keep Up to Date Stay ahead with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here. READ CAREERS BLOG Job Alert Emails Customize your subscription to receive job alerts, the latest news, and insider tips tailored to your preferences. Discover the exciting and rewarding career opportunities that await you at Cisco.
Learn more about Cisco
Size
79,500 employees
Market Cap
$194.5 billion
Industry
Net Income
$10.1 billion
Founded
2014
5 Year Trend
+1.4%
Revenue
$48 billion
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