Infrastructure Engineer T3

The Opportunity:
We're seeking a successful, experienced Infrastructure Engineer with experience performing as an ISSE/ISSM to join our team in implementing cutting-edge software using SAFe Agile processes, cloud native technologies through a combination of windows and Linux.  We are looking for a new team member to provide hands-on support for implementation, troubleshooting, optimization, and maintenance of IT systems. This role supports complex enterprise infrastructure and architecture, including UNIX/Linux/Windows systems, virtual environments, and mission systems. The ideal candidate will bring extensive experience in system engineering, security compliance, escalation resolution, and mission-aligned IT environments.

Responsibilities:

• Lead implementation, configuration, troubleshooting, and maintenance of complex IT systems

• Manage day-to-day operations, system monitoring, and performance optimization across diverse platforms

• Develop and implement strategies to optimize system operations and resource utilization

• Conduct comprehensive system capacity analysis and lead long-term capacity planning initiatives  

• Perform account lifecycle management and ensure compliance with Identity & Access Control Management (ICAM) policy

• Ensure proper application of security patches (IAVA) and maintain accurate tracking in systems of record

• Design and implement robust system security measures and ensure compliance with IT and customer policies and regulations  as well as Authority to Operate (ATO) processes

• Conduct detailed system analysis and capacity planning

• Analyze and resolve hardware/software integration issues across server and network infrastructures

• Design and support system architecture and hardware requirements in mission environments

• Apply expert knowledge of UNIX, Linux, and Windows systems and networking

• Coordinate system changes with ISSO and ISO, and maintain documentation per Change & Configuration Management policies

• Support the Plan of Action & Milestones (POA&M) and security authorization process

• Maintain and support Trusted Thin Client, enhanced VDI, and mission island concepts as required

• Leverage understanding of Service-Oriented Architecture (SOA) and interdependencies between systems

• Communicate effectively with leadership, internal customers, external customers when required and service teams

• Coordinate manage and support Active Directory, Identity Management, SCCM, DNS, Group Policy, MS Exchange, Active Roles Server, and Privileged Account Management (PAM)

Qualifications:

Required:

• Top Secret security clearance with SCI

• US citizen 

• Bachelor’s degree in a technical field (4 additional years of SA experience may substitute for degree)

• 10 years of experience as a System Administrator supporting complex programs and environments

• 6 years of experience in IT Service Management (ITSM)

• Expert knowledge of various operating systems (e.g., Windows Server, Linux, Unix) 

• Advanced expertise in network protocols, services, and infrastructure  

• Proven experience with virtualization technologies and cloud platforms  

• Strong proficiency in scripting and automation (e.g., PowerShell, Python, Bash)  

• Excellent problem-solving skills and ability to manage multiple high-priority tasks  

• Strong leadership and communication skills  

• Experience with IT service management frameworks (e.g., ITIL)

Certifications:

• DoD 8570 IAT Level II compliant (e.g., Security+ CE, CCNA Security, or equivalent)

• Computing Environment (CE) Certification (Microsoft OS, Red Hat/CentOS, or equivalent)

• ITIL 4 Foundation certification (required)

Desired:

• TS/SCI with Poly preferred

• Expertise with system integration, hardware/software troubleshooting, and enterprise environments

• Familiarity with Trusted Thin Client, enhanced VDI technologies (e.g., remote GPU, memory scaling), and mission islands

• Experience designing and maintaining secure environments compliant with federal security standards

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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.

Your potential is limitless. So is ours.

Learn more about CACI here.

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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. Learn more here.

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:

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.