XSITE LLC
Job Description
Position Title :
IT Networking Systems Specialist (Mid-Level) Location :
Onsite – San Diego, CA Security Clearance :
Active TS / SCI required Employment Type :
Full-time Start Date :
Immediate hire preferred About XSITE LLC XSITE LLC is a mission-driven, veteran-friendly, and rapidly growing defense contractor committed to delivering innovative technology solutions across AI / ML, software development, systems engineering, and modeling & simulation. Our focus is on empowering national defense, with a team of dedicated professionals solving complex challenges alongside military, government, and industry partners. Position Overview XSITE LLC is seeking an IT Networking Systems Specialist to provide subject matter expertise to a key government client in San Diego, CA. The ideal candidate will have technical depth in networking technologies, especially Software Defined Networking, and will engage with high-level stakeholders across the defense ecosystem. This role supports efforts to modernize and optimize wide area networks in tactically constrained environments. Core Responsibilities Provide support for the design, development, and implementation of modern WAN architectures in tactical environments. Assist in developing and evaluating network roadmaps aligned with emerging mission needs and technology trends. Apply knowledge of SDN, overlay networks, and tactical afloat WANs to assess feasibility and performance tradeoffs. Interface with stakeholders including Program Office personnel, Senior Executives, and Flag Officers to deliver recommendations and updates. Work onsite with client teams, ensuring clear communication and support for evolving requirements. Evaluate satellite transport link integration within WAN designs. Advise on best practices for reliable network performance in disconnected, intermittent, and limited bandwidth (DDIL) environments. Required Qualifications Active TS / SCI Clearance (No exceptions). Bachelor's degree in a relevant field (e.g., Engineering, Computer Science, Information Systems, Physics, Mathematics). 5-10 years of experience. Hands-on experience with: SDN technologies. WAN and overlay architectures in tactical or afloat military environments. Network management tools and techniques. DDIL constraints and tactical WAN best practices. Strong analytical skills with the ability to troubleshoot complex network issues independently. High adaptability and self-motivation in dynamic mission contexts. Professionalism in interactions with government and military leadership. Excellent verbal and written communication skills, including translating technical information across stakeholder levels. Preferred Qualifications Understanding of DoD, DoN, ASN, OPNAV, NAVWAR, PEO C4I, and Program Office structures. Experience supporting R&D, S&T efforts, and system transitions into Programs of Record (PoRs). Systems engineering experience within DoD acquisition programs. Why Join XSITE? Best-in-Class Benefits & Work-Life Balance 100% employer-paid health, dental, and vision coverage. 401K with a 6% match. Industry-leading PTO package — because work-life balance matters. Generous continuing education reimbursement to help you stay ahead. Stability & Long-Term Growth Multiple prime contracts and a mentor-protégé joint venture with a large defense company ensure long-term contract stability and growth opportunities. Career Growth Opportunities XSITE LLC is a Service-Disabled Veteran-Owned Small Business that has grown nearly 300% in the past year. This trajectory offers numerous opportunities for upward mobility, leadership, and technical innovation. Apply now to contribute to a high-priority national defense initiative and help shape the future of military network modernization.
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IT Networking Systems Specialist (Mid-Level) Location :
Onsite – San Diego, CA Security Clearance :
Active TS / SCI required Employment Type :
Full-time Start Date :
Immediate hire preferred About XSITE LLC XSITE LLC is a mission-driven, veteran-friendly, and rapidly growing defense contractor committed to delivering innovative technology solutions across AI / ML, software development, systems engineering, and modeling & simulation. Our focus is on empowering national defense, with a team of dedicated professionals solving complex challenges alongside military, government, and industry partners. Position Overview XSITE LLC is seeking an IT Networking Systems Specialist to provide subject matter expertise to a key government client in San Diego, CA. The ideal candidate will have technical depth in networking technologies, especially Software Defined Networking, and will engage with high-level stakeholders across the defense ecosystem. This role supports efforts to modernize and optimize wide area networks in tactically constrained environments. Core Responsibilities Provide support for the design, development, and implementation of modern WAN architectures in tactical environments. Assist in developing and evaluating network roadmaps aligned with emerging mission needs and technology trends. Apply knowledge of SDN, overlay networks, and tactical afloat WANs to assess feasibility and performance tradeoffs. Interface with stakeholders including Program Office personnel, Senior Executives, and Flag Officers to deliver recommendations and updates. Work onsite with client teams, ensuring clear communication and support for evolving requirements. Evaluate satellite transport link integration within WAN designs. Advise on best practices for reliable network performance in disconnected, intermittent, and limited bandwidth (DDIL) environments. Required Qualifications Active TS / SCI Clearance (No exceptions). Bachelor's degree in a relevant field (e.g., Engineering, Computer Science, Information Systems, Physics, Mathematics). 5-10 years of experience. Hands-on experience with: SDN technologies. WAN and overlay architectures in tactical or afloat military environments. Network management tools and techniques. DDIL constraints and tactical WAN best practices. Strong analytical skills with the ability to troubleshoot complex network issues independently. High adaptability and self-motivation in dynamic mission contexts. Professionalism in interactions with government and military leadership. Excellent verbal and written communication skills, including translating technical information across stakeholder levels. Preferred Qualifications Understanding of DoD, DoN, ASN, OPNAV, NAVWAR, PEO C4I, and Program Office structures. Experience supporting R&D, S&T efforts, and system transitions into Programs of Record (PoRs). Systems engineering experience within DoD acquisition programs. Why Join XSITE? Best-in-Class Benefits & Work-Life Balance 100% employer-paid health, dental, and vision coverage. 401K with a 6% match. Industry-leading PTO package — because work-life balance matters. Generous continuing education reimbursement to help you stay ahead. Stability & Long-Term Growth Multiple prime contracts and a mentor-protégé joint venture with a large defense company ensure long-term contract stability and growth opportunities. Career Growth Opportunities XSITE LLC is a Service-Disabled Veteran-Owned Small Business that has grown nearly 300% in the past year. This trajectory offers numerous opportunities for upward mobility, leadership, and technical innovation. Apply now to contribute to a high-priority national defense initiative and help shape the future of military network modernization.
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