Senior 5G & Mission Partner Environment (MPE) Systems Engineer

Job Title: Senior 5G & Mission Partner Environment (MPE) Systems Engineer Job Category: Security Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Continental US The Opportunity: CACI is seeking an experienced, action-oriented Senior 5G & Mission Partner Environment (MPE) Systems Engineer to join our team supporting the Army DCS, G-6, Network Command Control Communications, and Computers (C4) Services Integration (NC4SI) Directorate. In this high-visibility role, you will act as the bridge between strategic discussions and tangible execution for the Army's enterprise-level IT initiatives. You will work directly with the customer to capture their intent, help architect strategic courses of action, and independently produce the high-quality staff work required to drive mission success. Responsibilities: 5G Strategy & Open RAN Modernization: Enterprise Synchronization: Support the DCS G-6 in providing technical oversight, synchronization, and governance across all Army 5G experimentation and installation pilot programs. Architecture Implementation: Guide the deployment of Private 5G Networks and Open Radio Access Network (ORAN) architectures tailored to military installation security and performance needs. Spectrum & Multi-Operator Management: Ensure Army 5G data operates securely within DoD-assigned spectrum frequencies and design commercial architectures that support neutral hosting and multi-operator core networks. Mission Partner Environment (MPE) & Interoperability: Joint & Coalition Integration: Drive joint interoperability initiatives to securely synchronize Army command centers with Joint and Multi-National forces (e.g., INDOPACOM, EUCOM, CENTCOM). Data Exchange Frameworks: Design technical solutions that cross security domains (Cross Domain Solutions) to ensure secure, real-time data flows between legacy military communication networks and commercial 5G systems. Standards Representation: Represent G-6 equities in Joint, DoD, and international military telecommunications forums to align Army requirements with overarching defense strategies. Cybersecurity & Network Monitoring: Vulnerability Mitigation: Assess, mitigate, and continuously monitor 5G vulnerabilities within military infrastructure to shield networks from sophisticated national security threats. Independent Stream Monitoring: Partner with DISA and US CYBERCOM to help deploy advanced continuous monitoring capabilities for non-commercial, government-transiting 5G packet streams. Qualifications: Required: Must have TS/SCI clearance. Bachelor’s degree or higher in a technical, IT, or related field. Minimum of 10 years of DoD progressive experience in wireless network architecture, telecommunications systems engineering, or mobile network operations. Deep technical expertise in 3GPP 5G standards (including Release 15/16/17 and emerging 6G), cellular core networks, and RF spectrum management. Ability to produce clear, concise, and succinct staff products. You must be able to translate technical concepts into actionable insights and present them confidently to senior leaders. Proven experience advising and collaborating directly with military leaders (O-6 and above) and SES personnel. Proven hands-on experience with wireless broadband infrastructure, enterprise deployments, and zero-trust cybersecurity architectures applied to mobile networks. Desired: Joint Staff, Army/Service Headquarters, or OSD experience at the O-4/O-5 (or equivalent) level or above—specifically in roles requiring heavy staff work and brief production. Comprehensive understanding of the Army Unified Network Plan (AUNP) and tactical network capabilities at the division and echelon-above-corps levels. Direct experience testing, piloting, or deploying O-RAN Alliance-compliant software and decoupled hardware solutions in secure settings. Familiarity with Coalition Joint All-Domain Command and Control (CJADC2) and specific MPE data sharing standards, data centric security (DCS), and cross-domain technologies. What You Can Expect: A culture of integrity. At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation. An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality. A focus on continuous growth. Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy. Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits. Since this position can be worked in more than one location, the range shown is the national average for the position. The proposed salary range for this position is: $90,300-$189,600 CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic. #J-18808-Ljbffr CACI International Inc.