Senior cybersecurity engineer securing L3Harris’s mission-critical platform-management systems for military and cruise ships. Hardening Linux, networks, software, and infrastructure across the product lifecycle.
Responsibilities
Assess, implement, and manage cybersecurity and IT technologies integrated into the Integrated Platform Management System
Strengthen the system’s security posture across all phases of the development lifecycle, from initial design to final deployment
Work closely with software development teams, DevOps, and Integration & Test engineers
Communicate cybersecurity concepts, provide guidance, and help prioritize security-related tasks for cross-functional teams
Identify, assess, and remediate system vulnerabilities based on risk and impact
Develop tools, scripts, and automation to enhance cybersecurity operations and contribute to security-relevant code
Define and document cybersecurity requirements for software components to ensure compliance with security standards
Deploy, configure, and maintain cybersecurity solutions to improve the overall system security posture
Support deployments directly onboard ships when applicable
Requirements
Minimum of 10 years of experience in cybersecurity as a Senior IT/Security Administrator, Security Engineer, or Security Architect within engineering-driven product development environments
Experience with hardware and software product development for on-premises platforms, embedded systems, or connected devices
Extensive Linux system administration experience, including LDAP, FreeIPA, Kerberos, RBAC, system hardening, patch and package management, SSH, certificate-based authentication, and PKI/certificate lifecycle management
Familiarity with RBAC architecture, access model design, IAM, PAM, LDAP, Active Directory, RADIUS, and TACACS+
Experience designing and securing enterprise or product networks, including segmentation, secure topologies, defense-in-depth, firewalls, IDS/IPS, VPNs, Zero Trust, IPsec, TLS, RADIUS, and TACACS+
Proficiency in secure software development, OWASP Top Ten, secure coding, penetration testing, threat modeling, SAST, DAST, and SCA
Practical understanding of vulnerability management, software configuration management, Platform as Code, endpoint security, virtualization, and containerization
Experience establishing and enforcing cybersecurity governance frameworks, policies, and standards; familiarity with NIST and ISO 27001
Hands-on scripting and automation using PowerShell, Bash, Python, Ansible, and Terraform
Ability to evaluate and strengthen security architecture of complex systems
Excellent communication skills and ability to translate cybersecurity requirements into actionable guidance
Strong analytical and decision-making skills
Fluency in English required; proficiency in French is an asset
Preferred: SIEM tools such as Splunk, QRadar, or ELK; EDR/XDR platforms; Nessus or OpenVAS
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