Lead, IT Architect

L3

Harris 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. L3

Harris 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.

L3

Harris 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.

As a Lead, IT Architect, you will design, implement, and support enterprise Windows, VMware, and RHEL environments. Acting as a self-driven contributor within a team, you will participate in the full system lifecycle, including development, testing, and production validation. You will apply automation frameworks to improve efficiency, consistency, and reliability while engineering solutions that support both current operations and future program requirements.

• Execute duties with minimal to no oversight, proactively identifying and improving areas of deficiency
• Ensure compliance with IT system administration, security, and regulatory standards (JSIG, NIST 800 series, DoD Manuals Vol. 1-4)
• Support system design, engineering enhancements, and process improvements across environments
• Assist in planning, developing, and implementing automation solutions and workflows
• Monitor, track, and present technical performance metrics for IT systems
• Analyze system capacity and performance to align with operational requirements
• Collaborate with development teams to assess and plan for future growth and scalability
• Maintain and support IT systems, ensuring stability, availability, and security
• Present technical designs and participate in design reviews with stakeholders
• Contribute to proposal efforts, including both technical input and cost considerations
• Up to 5% travel may be required
• DoD 8570 Compliant (At least certified in CompTIA Security+ CE)
• Lead the design and implementation of enterprise security architectures aligned with the Joint Special Access Program Implementation Guide across classified and unclassified environments
• Architect end-to-end vulnerability management strategies leveraging Tenable Security Center, including scan architecture, data flows, and remediation pipelines
• Define and enforce enterprise STIG compliance frameworks using Security Technical Implementation Guides across Microsoft Windows and Red Hat Enterprise Linux platforms
• Establish secure system baselines and gold images, ensuring consistency across on-prem, virtualized, and hybrid infrastructures
• Serve as technical authority for risk management and accreditation, guiding systems through RMF and ATO processes with full lifecycle ownership
• Design and oversee Plan of Action and Milestones (POA&M) strategies, ensuring vulnerabilities are prioritized, tracked, and remediated in alignment with mission risk
• Develop architecture patterns that integrate security controls, logging, and monitoring, leveraging platforms such as Splunk Enterprise for enterprise visibility
• Translate vulnerability and compliance data into actionable risk decisions, briefing leadership and stakeholders at the program and enterprise level
• Architect automated remediation frameworks using Ansible, Bash, and Power Shell to enforce compliance at scale
• Define and implement continuous monitoring strategies, integrating scan data, system telemetry, and configuration drift detection
• Lead security architecture reviews, design approvals, and control validations for new and existing systems
• Provide guidance on infrastructure modernization and secure system design, including hardware refresh cycles and platform standardization
• Ensure systems are designed to meet audit readiness and inspection requirements, including DISA assessments and compliance inspections
• Architect identity and access management models, including privileged access controls, RBAC, and auditing mechanisms
• Design secure network architectures, including segmentation, boundary defense, and secure communications aligned with DoD requirements
• Collaborate with engineering, operations, and cybersecurity teams to ensure security is embedded in system lifecycle (Dev Sec Ops )
• Establish and maintain technical documentation, reference architectures, and security design standards
• Provide technical leadership to engineers and analysts performing STIG implementation, vulnerability remediation, and compliance validation
• Support program stand-up efforts, defining secure architectures from initial design through operational deployment
• Evaluate and integrate emerging technologies into the enterprise while maintaining strict…