System Administrator (DNS & Linux)

Provides administration and management of Infoblox IP Address Management (IPAM) Platform
Creation and de-commission of IP space for multiple customers
DHCP Management and configuration
Provides problem and incident resolution, including dealing with software and hardware vendor technical support
Deploy and maintain network hardware, peripherals, services, and settings in accordance with industry standards and project/operational requirements
Performs daily system monitoring; verifies the integrity and availability of hardware, services, systems, and key processes; reviews system and application logs
Documents and performs network upgrades and modifications during ASI windows
Provides on-call troubleshooting and issue resolution as required
Develops and maintains installation and configuration procedures
Partner with the information security personnel to assess potential exposure to vulnerabilities, identify mitigation plans, and ensure compliance with enterprise security baselines and standards
Acts as a liaison with other groups to provide information sharing pertaining to the needs of the diverse set of computer users supported by the client as a whole.
Develop scripts and other automation solutions to aid in the completion of migration and integration tasks.
Review problems to understand the root causes of issues and ensure proper fixes are implemented
Inform management in a clear, concise, and timely manner of any customer or technical issues
Be responsive and decisive on adjusting architecture as customer requirements and technology evolves
Coordinate with on-site support personnel while troubleshooting
Use enterprise service management tools to initiate, respond, and track service requests
Create reports and analyze performance metrics
Required Skills:
Active TS/SCI clearance
Must have a DoD 8570 IAT Level II Certification (i.e. - Security+)
One of the following certifications InfoBlox, Linux Administration, Cisco (CCNA/CCNP), Juniper (JNCIA/JNCIS/JNCIP), Aruba, Arista
8+ years of related experience following Networking
Bachelor's degree in a related field or work experience considered in lieu of degree.
Master's degree may be substituted for 2 years' experience; or a doctoral degree may be substituted for 3 years' experience. 4 years' experience (in addition to minimum experience requirements) may be substituted for a Bachelor's degree
Experience managing and troubleshooting DNS, DHCP, IPAM, and NTP in a large multi-site environment
Possess flexibility to operate in a highly dynamic environment while ensuring a high level of operational effectiveness
Detail oriented with ability to work well in a team environment
Extensive experience troubleshooting, managing and monitoring services such as BIND (DNS)
Experience building configurations using CLI
Experience creating & updating network topologies using Visio
Creating and documenting processes and creating work instructions
Experience working as a part of a large team and working directly with customers
Excellent hardware troubleshooting experience.
Experience creating scripts to automate routine administration tasks
Excellent verbal skills and ability to communicate effectively with people who have varying degrees of technical expertise
Strong customer service skills
Desired Skills:
Aruba Certification (ACSA and/or ACSP, depending on role)
Experience with F5 load balancers to include troubleshooting, configuring, upgrading, maintaining, and monitoring an enterprise F5 load balancer network architecture (F5 Network certification a plus)
Experience with Infoblox IP Address Management (IPAM) and DHCP Administration
Experience utilizing ITSM tools (ServiceNow, Remedy)
Experience administering and troubleshooting server operating systems such as Linux, Windows, or UNIX
Experience with LDAP/PKI preferred
Broad understanding of network infrastructure topologies, security policies, firewalls, and the L2/L3 switch and router infrastructure
Experience with Network Management & Performance platforms, such as NetScout / Science Logic