Lead, Systems Engineer (Platform Engineering)

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 Title: Lead Systems Engineer (Platform Engineering) Job Code: 42610 Job Location: Vandenberg Space Force Base, CA Job Schedule: 9/80 (Every Other Friday Off)   Job Description:   As the premier provider of Space Domain Awareness (SDA) mission solutions for the United States Space Force, L3Harris is seeking a Lead Systems Engineer/Platform Engineer to perform system sustainment functions related to the MOSSAIC C2 Space Domain Awareness (SDA) mission at Vandenberg Space Force Base, CA. The ideal candidate will be responsible for monitoring and maintaining the performance of our Space Mission Platform and its tenant applications. This role is critical in ensuring that our systems operate at peak efficiency and are secure from internal and external threats.   Essential Functions:   Lead monitoring and maintenance of the operational platform and tenant applications to ensure high availability and strong system performance. Oversee troubleshooting and resolution of system issues, outages, and performance concerns, ensuring timely response and minimal downtime. Provide technical leadership for system sustainment activities and support daily mission operations. Guide end-user support efforts, helping resolve complex issues and promoting system best practices. Lead the planning and implementation of system upgrades, enhancements, patches, and service packs. Conduct and oversee routine system audits to evaluate system performance, integrity, and compliance. Develop, improve, and maintain system documentation, technical procedures, and standard operating procedures. Coordinate with site support teams, administrators, engineers, and mission stakeholders to resolve issues and improve system operations. Review system alerts, incidents, and operational trends, and drive corrective and preventive actions. Prepare performance reports, assess system health, and provide recommendations for improvements and modernization. Ensure compliance with ITAR, EAR, and CUI requirements, along with company policies and cybersecurity standards. Maintain awareness of emerging technologies, industry trends, and engineering best practices that may improve system performance and mission support. Support team development by mentoring junior engineers and administrators. Travel up to 10% as needed.

Bachelor’s degree and a minimum of 9 years of related experience, or a graduate degree with at least 7 years of related experience. In lieu of a degree, minimum of 13 years of prior related experience. Active U.S. DoD Secret security clearance with the ability to obtain a Top-Secret clearance. Strong experience with system performance monitoring, troubleshooting, and sustainment in an operational environment. Strong understanding of network infrastructure, system administration, and data processing pipelines. Demonstrated ability to lead technical activities and support cross-functional engineering efforts. Strong problem-solving skills, sound judgment, and attention to detail.   Preferred Additional Skills:   Experience designing, deploying, and administering VMware Cloud Foundation. Excellent communication, collaboration, and documentation skills. Ability to work independently, lead multiple priorities, and