Infrastructure/System Administrator

CACI International Inc; Sterling (VA); On-site; USD 73,000 - 149,000; Full time

Job summary

CACI International Inc. is seeking an Infrastructure/System Administrator in Sterling, VA to design, secure, and operate cloud and on‑prem infrastructure supporting the software development lifecycle.

You will bridge operations and development, ensuring highly available environments with automated tooling and secure access. The role requires TS/SCI clearance (polygraph preferred), a IT-related bachelor’s degree or equivalent experience, and at least 3 years of Linux admin with strong Python

Qualifications

• Active TS/SCI clearance (willing to obtain polygraph).
• Bachelor’s degree in information technology or related field, or equivalent experience.
• Minimum 3 years of experience as IT system administrator.
• Proven Linux system administration expertise.
• Strong Python scripting skills; knowledge of automation and orchestration tools.

Responsibilities

• Support designing, securing, and maintaining cloud and hybrid/cloud environments for the software development lifecycle.
• Act as a bridge between operations and development, managing infrastructure across AWS and on‑prem data centers.
• Build highly available, scalable, automated environments with secure access, CI/CD tools, and compute resources for code deployment.
• Implement systems design, development, and integration throughout the system life cycle.
• Operate and maintain moderate to complex infrastructure, including OS and application software, and system management tools.
• Ensure robust security measures, including backup and redundancy strategies.
• Prepare documentation for processes and procedures related to engineering projects.

Skills

Linux admin

Python

Kubernetes

Ansible

VMware

Automation tools

Education

Bachelor's degree in IT / related field

Tools

AWS

CI/CD tools

VMware virtualization

Job description

Job Title: Infrastructure/System AdministratorJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCIEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Local* * *The Opportunity:Are you ready to shape the future of intelligence systems? CACI is seeking a talented Infrastructure/System Administrator to join our team in Sterling, VA. In this role, you'll design cutting-edge system architectures for new and existing computer systems, coordinating all aspects of development including design, modeling, security, integration, and testing. Your expertise will be crucial in achieving project milestones and developing innovative solutions to complex engineering challenges. Join us at CACI and be part of a team that's pushing the boundaries of technology in support of our nation's intelligence capabilities.Responsibilities:Support designing, securing, and maintaining the cloud and hybrid/cloud computing environments that power our software development lifecycle.Act as a critical bridge between system operations and development teams, managing a robust infrastructure that spans AWS cloud services and on-premises data centers.Help build highly available, scalable, and automated environments, ensuring developers have the secure access, CI/CD tools, and computing resources they need to build, test, and deploy code efficiently.Implement systems design, development, and integration throughout the entire system life cycle.Support moderately complex infrastructure, including installing, configuring, testing, and maintaining operating systems, application software, and system management tools.Implement and maintain robust security measures, including backup and redundancy strategies.Prepare documentation for processes and procedures related to engineering projects.Qualifications:Required:Active TS/SCI security clearance (Willing and able to obtain a polygraph)Bachelor’s degree in information technology, a relevant field or equivalent experienceMinimum of 3 years' experience as an IT system administrator, or related experience.Demonstrated proficiency as a Linux system administrator.Strong scripting and coding skills, particularly in Python, or similar languages.Desired:Expertise in operational support and system maintenance.Knowledge in Kubernetes container orchestration and Ansible automation.Experience with automation and virtualization technologies (e.g., VMware, virtual networking)-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.The proposed salary range for this position is:$72,700 - $149,200CACI 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.