Lead, Cloud Information Security Systems Manager

About L3Harris

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Summary

Job Title: Lead, Cloud Information Systems Security Manager

Job Code: 34755

Job Location: Melbourne, FL

Job Schedule: 9/80: Employees work 9 out of every 14 days – totaling 80 hours worked – and have every other Friday off

Job Description

L3Harris is seeking an experienced Information Security Systems Engineer (ISSE) or Information Systems Security Manager (ISSM) to join the L3Harris Network Security Engineering Team supporting managed network infrastructures for federal government and other customers.

We are seeking a highly skilled, customer-facing cybersecurity engineering leader with a strong foundation in software engineering, CI/CD pipeline delivery, and cloud-native architectures. This individual will serve as the primary cybersecurity engineering representative, partnering closely with Program Management leadership and customer stakeholders to drive execution, maintain strategic and technical alignment, ensure timely delivery of required artifacts, and keep programs on schedule.

This role operates within a dynamic, mission-focused environment and requires both deep technical expertise and strong leadership capability. The selected candidate will influence technical direction, guide engineering execution, drive process improvements, and ensure security is seamlessly integrated into development and operational workflows.

• This is a 100% on-site position at the L3Harris offices in Melbourne, Florida. Remote work is not permitted.

Essential Functions

• Serve as the Information Systems Security Manager (ISSM), providing overall leadership, governance, and oversight of cybersecurity strategy, risk management, and compliance activities across assigned programs and systems.
• Establish and maintain system security architecture, policies, and procedures to ensure alignment with enterprise security objectives and regulatory requirements.
• Lead cybersecurity risk management activities, including system authorization support, control implementation oversight, assessment coordination, and continuous monitoring.
• Partner with Program Management and customer stakeholders to ensure cybersecurity requirements are integrated into program planning, execution, and delivery milestones.
• Oversee the preparation and maintenance of security documentation, including System Security Plans (SSPs), security assessments, Plans of Action & Milestones (POA&Ms), and engineering change documentation.
• Ensure effective implementation and monitoring of NIST-based controls, including validation of technical, administrative, and operational safeguards.
• Provide oversight of DevSecOps integration efforts, ensuring security requirements are embedded within CI/CD pipelines, configuration-as-code, and policy-as-code practices.
• Guide secure design and implementation of cloud-based and hybrid architectures, ensuring adherence to Zero Trust and enterprise security principles.
• Lead cross-functional cybersecurity coordination across engineering, development, operations, and testing teams, promoting secure-by-design practices throughout the system lifecycle.
• Serve as the primary cybersecurity liaison to customer and stakeholder leadership within regulated or federal environments.
• Ability to obtain FAA Public Trust Clearance.

Qualifications

• Bachelor’s Degree and minimum 9 years of prior relevant experience. Graduate Degree and a minimum of 7 years of prior related experience. In lieu of a degree, minimum of 13 years of prior related experience.

Preferred Additional Skills

• Governance & Compliance Expertise:
  • 5+ years of experience implementing and overseeing NIST-based frameworks within regulated or enterprise environments.
• Risk Management & Authorization:
  • Demonstrated experience supporting system authorization processes, security control assessments, continuous monitoring, and audit readiness.
• Architecture & Infrastructure Security Oversight:
  • Experience overseeing secure network and cloud architectures, ensuring required security posture at infrastructure and platform layers.
• Enterprise & Cloud Security Leadership:
  • Experience applying Zero Trust principles and enterprise security best practices across cloud, containerized, and hybrid environments.
• Experience collaborating with engineering and development teams to integrate security requirements into Agile and DevSecOps workflows.
• Familiarity with security automation, continuous monitoring tools, and vulnerability management platforms.
• Strong knowledge of enterprise networking technologies and secure infrastructure operations.
• Experience supporting proposal development, including cybersecurity strategy contributions and Basis of Estimates (BOEs).