Sr. Systems Engineer

Sr. Systems Engineer

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: Secret

Employee Type: Regular

Percentage of Travel Required: Up to 100%

Type of Travel: Outside Continental US - Hazard

* * *

The Opportunity:

We are seeking a skilled and motivated Sr. Systems Engineer with expertise in Windows Server Administration, focusing on Dynamic Host Configuration Protocol (DHCP) and Network Policy Server (NPS) services. The ideal candidate will have a deep understanding of Windows Server environments, along with hands-on experience in configuring, managing, and troubleshooting Windows DHCP and NPS to ensure the reliability, scalability, and security of our network infrastructure.

Responsibilities:

o Manage and maintain Windows Server environments (Windows Server 2012/2016), ensuring they are configured, optimized, and secured.
o Administer Windows DHCP services, including scope management, IP address allocation, leases, and relay configuration.
o Configure and manage NPS (Network Policy Server) to implement RADIUS-based authentication and authorization for VPN, Wi-Fi, and other network access services.
o Assist in the deployment, configuration, and maintenance of Windows Server environments on-premises.
o Troubleshoot and resolve issues related to IP address allocation, lease renewals, and DHCP scope configuration.
o Monitor and ensure DHCP service performance, reviewing logs and reports for potential issues.
o Set up and manage DHCP servers, including scope configuration and lease management.
o Implement and configure NPS policies to enforce network security protocols, including 802.1X authentication, VPN connections, and other network access controls.
o Perform troubleshooting for RADIUS client connectivity issues and ensure proper integration with other network devices such as switches, wireless controllers, and VPN gateways.
o Configure and maintain Network Policy Server (NPS) for network access control and authentication.
o Collaborate with security teams to ensure compliance with internal security policies and external regulatory requirements.
o Utilize PowerShell and other scripting tools to automate common tasks related to DHCP, NPS, and Windows Server administration.
o Work closely with network engineers, system administrators, and other IT teams to troubleshoot issues, deploy new services, and improve the performance of IT systems.
o Provide technical support and guidance to internal teams regarding DHCP and NPS services.
o Provide basic support for Active Directory and Group Policy in hybrid scenarios.
o Maintain comprehensive documentation for system configurations, changes, and troubleshooting procedures.

Qualifications:

Required: 

• Education: Bachelor's degree in Computer Science, Information Technology, or related field.

• Experience: 7+ years of experience working in a Windows Server administration role, with a focus on DHCP and NPS services.

• Strong hands-on experience with Windows Server (2012 or 2016).

• Proven experience in the configuration, management, and troubleshooting of DHCP and NPS services in an enterprise environment.

o In-depth knowledge of Windows Server DHCP and NPS configurations, as well as related technologies (RADIUS, 802.1X, VPN, etc.).
o Familiarity with networking concepts such as IP addressing, subnets, VLANs, and routing.
o Experience with PowerShell scripting to automate server and network tasks.
o Strong understanding of Windows security policies and group policies.
o Familiarity with DHCP and its role in network infrastructure.
o Knowledge of network authentication and access control concepts.
o Microsoft Certified Solutions Associate (MCSA) Windows Server 2012 or 2016 or equivalent.
o Microsoft Certified: Windows Server Hybrid Administrator Associate certification.
o CompTIA Security+ or equivalent DoD 8570 II Security Certification.

Desired:

• Experience with PowerShell scripting.
• Knowledge of networking concepts (TCP/IP, subnetting).
• Experience with virtualization platforms such as VMware or Hyper-V.
• Familiarity with Active Directory, DNS, and other critical network services.
• Experience with cloud environments or hybrid cloud infrastructure.
 

-

________________________________________________________________________________________

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.

________________________________________________________________________________________

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:

$82,100-$172,400

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.

Apply