Senior Systems Engineer

Salary: $109000 - 158000 per year Requirements: Bachelors Degree with a minimum of 6 years of relevant experience Graduate Degree with at least 4 years of related experience In lieu of a degree, a minimum of 10 years of related experience Active DoD Secret Clearance with the capability to obtain a Top Secret/SCI Clearance Proven experience in Systems Engineering focused on Networking Strong understanding of Network Security policies and practices Familiarity with Linux operating systems and networking Knowledge of LAN/WAN routing protocols (BGP, OSPF, EIGRP, EVPN) is essential Prior military service is highly desirable Experience in Network and Systems Support/Installation, including Cisco/Brocade/Dell IOS, DHCP, DNS, and TCP/IP is a plus Familiarity with network packet inspection tools like WireShark and TCPDump is beneficial Knowledge of multicast routing concepts is advantageous Understanding of MPLS and VPNs is preferred Experience with HAIPE devices is desired Responsibilities: Lead a multidisciplinary engineering team in designing, implementing, and testing WAN/LAN/SATCOM-based network systems Convert customer system requirements into documentation using DOORS or Jira Engage in proposal and bid reviews, ensuring compliance with company policies, vision, values, and objectives Communicate effectively both within and outside of the Systems Engineering functional group to foster collaboration on operational processes Drive improvements to systems and processes as necessary Make significant contributions to the achievement of departmental goals and operational plans, directly impacting departmental outcomes Travel approximately 25% of the year as required by business needs Technologies: Cisco Support JIRA LAN Linux MPLS Network Security TCP/IP iOS More: At L3Harris, we are devoted to attracting and cultivating top-tier talent who are passionate about their work. We pride ourselves on fostering an inclusive and dynamic environment that facilitates our employees professional growth and promotes a healthy work-life balance. Our culture is deeply rooted in values, community engagement, and an unwavering commitment to excellence. As a leader in defense technology, we address our customers mission-critical requirements by providing comprehensive technology solutions that integrate the space, air, land, sea, and cyber domains to enhance national security. This position is based in Greenville, TX, within a team dedicated to innovative networking solutions. last updated 30 week of 2026