Senior System Administrator

The Opportunity:

We are seeking a skilled Senior System Administrator to support our government agency's IT operations. The ideal candidate will be responsible for maintaining and optimizing the agency's IT infrastructure, ensuring systems operate efficiently, securely, and in compliance with government regulations. This role requires a proactive individual with strong problem-solving skills and the ability to work collaboratively with other IT professionals.

Responsibilities:

• Administer, configure, and maintain Windows Server and Linux/Unix environments across development, test, and production systems.

• Monitor system performance, availability, and reliability; proactively identify and resolve issues to minimize downtime.

• Manage and maintain network infrastructure components, including TCP/IP, DNS, DHCP, and related services.

• Perform system patching, upgrades, and vulnerability remediation in accordance with security policies and timelines.

• Support virtualization platforms including provisioning, configuration, and performance tuning of virtual machines.

• Manage and support cloud-based infrastructure and services (e.g., AWS, Azure, Google Cloud), including deployments and system integration.

• Implement and enforce security controls to ensure compliance with government regulations and standards (e.g., NIST, FISMA).

• Troubleshoot complex system, network, and application issues; perform root cause analysis and implement corrective actions.

• Maintain system backups, disaster recovery processes, and continuity of operations procedures.

• Collaborate with application, database, and network teams to support system integrations and resolve cross-functional issues.

• Develop, document, and maintain standard operating procedures (SOPs), system configurations, and technical documentation.

• Support database environments from a system administration perspective, including performance and connectivity.

• Automate routine administrative tasks using scripting and configuration management tools where applicable.

• Support audits, security assessments, and compliance reporting activities.

• Provide on-call support and participate in incident response as required.

Qualifications:

Required:

• Bachelor's degree in IT, Computer Science, or related field

• 7+ years of experience in system administration

• Proven experience in system administration within a government or highly regulated environment

• Strong proficiency with Windows Server and Linux/Unix operating systems

• Strong knowledge of network protocols and infrastructure (TCP/IP, DNS, DHCP)

• Experience with virtualization technologies (VMware, Hyper-V)

• Familiarity with cloud services (AWS, Azure, Google Cloud)

• Solid understanding of database management systems (SQL, NoSQL)

• Excellent troubleshooting and problem-solving abilities

• Strong communication skills and the ability to document processes and procedures

• Experience in patching operating systems to remediate any vulnerabilities

• Understanding of government compliance requirements and security standards (e.g., NIST, FISMA)

Desired:

• Preferred certifications such as:

  • Security+ / CISSP certification

  • Microsoft Certified: Azure Administrator

  • AWS Certified SysOps Administrator

  • Red Hat Certified System Administrator (RHCSA)

• Familiarity with database management systems

• Experience with automation and scripting

• Knowledge of configuration management tools

• Experience with monitoring and logging tools

• Experience with government financial management systems or Momentum Financials.

• Knowledge of Agile development methodologies

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:

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.