Network Infrastructure/System Administrator Mclean, VA, US

CACI International Inc.; Virginia (MN); On-site; USD 120,800 - 265,800; Full time

Job summary

CACI International Inc. seeks a Network Infrastructure/System Administrator to support the Luke Team in NOVA and Bethesda. The role requires deploying and maintaining Cisco-based network infrastructure, monitoring performance, and enforcing security measures.

Candidates should have TS/SCI with Polygraph and enterprise network experience. The position emphasizes configuring routers and firewalls, troubleshooting issues, and documenting SOPs while coordinating with cross-functional teams.

Qualifications

• Active TS/SCI with Polygraph.
• Bachelor's degree in CS/Engineering or equivalent experience.
• Experience designing and building enterprise network architectures.
• Experience with Cisco and/or Juniper production networks.
• Knowledge of TCP/IP, routing (OSPF/BGP), ACLs, VPNs, SSH.
• Knowledge of IPv4 networks and network hardening.
• Familiarity with Windows and Unix/Linux operating systems.
• Ability to troubleshoot and work in a team.

Responsibilities

• Deploy, configure, maintain and monitor all active network equipment (Cisco routers, switches, firewalls) ensuring seamless network operations.
• Troubleshooting and resolving network issues, implementing security measures and proactively optimizing network performance.
• Monitor and resolve network related service tickets.
• Maintain SOPs and network design documentation.
• Setup user accounts, permissions and passwords.
• Perform network upgrades to maintain system integrity and overall availability.
• Support and administer third-party applications.
• Ensure security and efficiency of IT infrastructure following industry standards.

Skills

TS/SCI with Polygraph

Network design

TCP/IP Routing (OSPF/BGP)

VPNs and Firewalls

Windows/Linux Administration

Education

Bachelor's degree in CS/Engineering or equivalent

Tools

Solarwinds

Ansible

Python

Job description

## Network Infrastructure/System AdministratorMclean, VA, USApply NowFind out how well you match with this jobJob ID329902Job Title: Network Infrastructure/System AdministratorJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: NoneType of Travel: None\* \* \***The Opportunity:** CACI is looking for a Network System Administrator to join the Luke Team! You will support the customer's data communications network; maintain the network hardware and software as well as monitor the network to ensure availability to all system users; and perform the necessary maintenance to support network availability. You will need to be proficient in Cisco network solutions, as well as software defined networks and firewalls from AWS, Google, and Microsoft. The purpose of the Luke program, is to provide dev ops, applied technology investigations, operations and maintenance and infrastructure lifecycle support services across the ODNI’s enterprise. Our support in NOVA and Bethesda includes software engineering/development, O&M, technology investigations, customer advocacy, business process engineering, and system design. Invent your future and make a lasting impact at CACI!**Responsibilities:*** Deploy, configure, maintain and monitor all active network equipment (Cisco routers, switches, firewalls) ensuring seamless network operations* Responsible for troubleshooting and resolving network issues, implementing security measures and proactively optimizing network performance* Monitor and resolve network related service tickets* Maintain Standard Operating Procedures (SOPs) and network design documentation* Setup user accounts, permissions and passwords* Perform network upgrades to maintain system integrity and overall availability* Support and administer third-party applications* Ensure security and efficiency of IT infrastructure following industry standards**Qualifications: Required:*** **Active TS/SCI with Polygraph*** Bachelor's degree in Computer Science, Engineering or similar field or similar experience* Experience designing and building enterprise-level network architectures* Experience supporting and troubleshooting production network systems built with Cisco and/or Juniper network vendor platforms* Knowledge of and experience with networking technology and protocols, TCP/IP, Routing (static, OSPF, BGP, and policy-based), Firewalls (zone based polices and ACLs), SSH, VPNs* Knowledge of network management platforms such as Solarwinds* Demonstrated understanding of IPv4 networks* Experience with network device hardening in accordance with industry best practices* Knowledge of different operating systems (Microsoft, Unix, Linux, etc.)* Attention to detail, problem solving mindset, critical thinking and teamworking skills**Desired:*** Cisco CCNP or Juniper JCNIP certifications or skill level at minimum (Senior / Expert)* Experience with automating network tasks using Ansible or Python* Familiarity with cloud hosting solutions such as Amazon AWS, Microsoft Azure and Google Cloud* VMWare experience* CompTIA Network+, CCNP, CCNA certifications-**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:$120,800 - $265,800*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.*