Cloud Systems Administrator

Join a fast-paced Agile development program as a key Platform Engineer supporting critical systems in a dynamic AWS cloud environment. As part of our infrastructure team, you'll help design, build, and maintain resilient systems and services that power daily operations. This role offers the chance to work with a diverse technology stack, solve complex challenges, and continually grow your cloud, automation, and systems expertise. If you enjoy fast-moving environments, modern DevSecOps practices, and meaningful technical impact, this is the place for you., Core Duties

• Build and manage AWS infrastructure across multi-account, multi-environment landing zones, including systems management and solution design
• Install, configure, deploy, and maintain servers, software, and supporting services
• Monitor system performance, investigate anomalies, and resolve issues proactively
• Maintain high levels of security and efficiency across all IT infrastructure
• Collaborate within a SAFe Agile delivery model alongside application, data, and security teams

Additional Responsibilities

• Support IaaS, IaC, networking components, and firewall management
• Perform upgrades, IAVA patching, and ensure STIG compliance
• Maintain systems in alignment with contract and performance requirements
• Troubleshoot outages and implement long-term corrective actions
• Manage and optimize AWS cloud resources
• Enforce security best practices through access controls, backups, and firewalls
• Develop and maintain internal documentation, technical manuals, and policy artifacts
• Contribute to multi-region disaster recovery strategies, including backup, failover, and resilience

• An active DoD Secret Clearance

• 5+ years of relevant professional experience

• Bachelor's degree or equivalent work experience

• Security+ certification

• Proven experience as a System Administrator, Network Administrator, or similar technical role

• Strong verbal and written communication skills for collaboration with peers and leadership

• Hands-on experience with servers, LAN/WAN networks, and patch management in virtual or cloud environments

• Ability to understand, refine, and document technical solution requirements

• Self-driven with the ability to work independently

• Expertise with Windows and Linux operating systems

• Production Kubernetes / EKS and containerization experience (Docker/containerd, image building)

• Active Directory and identity federation integration experience

Desired:

• Familiarity with GIT, Jenkins CI/CD, Terraform, Docker
• Experience with STIG compliance and security patching
• Knowledge of AWS environments and core cloud services
• Scripting and automation experience (Shell, Perl, PowerShell)
• Strong Terraform knowledge (modules, state management, reusable IaC) and Ansible experience
• Observability and logging platform experience (Splunk, CloudWatch)

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: $75,200-$158,100

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.