Network Engineer Tier 3

Company: CACI
Location: El Segundo
Posted on: April 1, 2026

Job Description:

Job Title: Network Engineer Tier 3 Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local Anticipated Posting End: There is not an anticipated end date for this posting since applications are needed on an ongoing basis. Opportunity: Team CACI is seeking a Senior Network Engineer to support an Intelligence Community customer's diverse network infrastructure, including CAN, LAN, CORE, and WAN network. The role involves designing, implementing, troubleshooting, and maintaining complex IT networks, encompassing daily operations, monitoring, and problem resolution for all network architecture and devices. The successful candidate will be responsible for providing high-level technical expertise and leadership to junior network engineers. Develop and implement network support processes for CAN/LAN/WAN, ensuring compliance with relevant standards. Design, analyze, and maintain complex IT networks, from requirements gathering to installation and troubleshooting. Evaluate network performance, consult on improvements, and make technology recommendations to senior management. Experience with large-scale enterprise networks in a fast-paced environment is essential. Responsibilities: Troubleshoot complex network issues and provide timely resolutions Provide problem identification, diagnosis, troubleshooting, and resolution of incidents and problems. Provide support for the escalation and communication of status to the company management and customer. Provide support for the dispatch system and hardware problems and remains involved in the resolution process Isolate and resolve of hardware and software problems involving the applications, the operating system, the hardware, the communications infrastructure, or any combination thereof Troubleshoot, maintain integrity and configure network components along with implementing operating systems enhancements to improve reliability and performance Integrate new technologies into new and existing systems including the transition and migration of corporate systems. Supports hardware infrastructure site surveys, planning, and design. Provide transition planning and support services that accelerate delivery timelines, reduce operational risk and ensure service continuity during transition. Provide transition planning and support for the migration of existing services between environments, migration of users from existing service platforms to new service offerings and transition of services into operations Maintain documentation for network configurations, procedures, and incidents to ensure compliance with best practices and industry standards. Works individually and actively participates on integrated teams Understands and applies more advanced concepts and processes to daily activities. Assists Lead Services Engineers in implementing their activities. Can perform all tasks of lower-level technicians or specialists. Qualifications: Bachelor's degree in Computer Science, Information Technology, or equivalent work experience 10 years of related work experience TS/SCI w/ poly is required Advanced knowledge of networking protocols (TCP/IP, OSPF, BGP, MPLS, etc.) Expertise in configuring and managing enterprise-level network equipment (Cisco, Juniper, etc.) Strong understanding of network security principles and best practices Proficiency in network monitoring and analysis tools Excellent problem-solving and analytical skills Strong communication and leadership abilities Desired: Certifications such as JNCIA, JNCIP, CCNA, CCNP, or similar are highly preferred Familiarity with ITIL framework and service management best practices This position is contingent on funding and may not be filled immediately. However, this position is representative of positions within CACI that are consistently available. Individuals who apply may also be considered for other positions at CACI. 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: $105,100-$231,100 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.

Keywords: CACI, Yorba Linda , Network Engineer Tier 3, IT / Software / Systems , El Segundo, California