Network Engineer Senior

General Dynamics Information Technology (GDIT) is a global technology and professional services company that delivers consulting, technology, and mission services to U.S. government agencies. They are seeking a Network Engineer Senior who will be responsible for managing network infrastructure, enhancing security posture, and providing technical leadership in Windows systems.

Responsibilities:

• Management of Juniper SRX 4100 firewalls
• Management of F5 Load Balancers to include SSL certificate offloading, and custom iRule management
• Windows system technical leadership
• Optimizing health of network infrastructure and devices by taking proactive action to maximize uptime and mitigate risk
• Enhancing security posture by utilizing tools such as Tenable Security Center and HCL BigFix to identify and remediate security vulnerabilities on systems running Windows and Red Hat Enterprise Linux
• Utilizing Group Policies to align Windows system configuration in accordance with the DISA STIG security standards
• Maintaining production application SSL certificates and Windows Public Key Infrastructure for user authentication
• Managing user accounts, credentials, privileges, and access controls via Windows Active Directory
• Liaison to external network operations teams
• Maintaining Software Defined Network based model utilizing the Cisco ACI platform
• Maintaining Cisco ACI backbone hardware architecture utilizing Nexus spine and leaf switches as well as Application Policy Infrastructure Controllers (APIC’s)
• Defining Contracts for filtering traffic between endpoints within the ACI infrastructure
• Maintaining Windows Server 2019 infrastructure
• Maintaining multi-site Windows 2019 Active Directory Domain
• Maintaining Remote Desktop Services
• Maintaining a Windows Public Key Infrastructure with certificate authority to enable smart card login from local and remote sources
• Maintaining Windows Server Update Services to enable centralized management of Windows system patches
• Performing DISA STIG security hardening on Windows Active Directory domain member hosts utilizing Group Policies
• Maintaining automatically replicating file servers to backup and provide high availability to user data
• Maintaining a BIND DNS infrastructure on Red Hat Enterprise Linux

Requirements:

• 7 + years of related experience
• US Citizenship Required: Yes
• Microsoft Windows Server
• Network Engineering
• Network Operations
• Management of Juniper SRX 4100 firewalls
• Management of F5 Load Balancers to include SSL certificate offloading, and custom iRule management
• Windows system technical leadership
• Optimizing health of network infrastructure and devices by taking proactive action to maximize uptime and mitigate risk
• Enhancing security posture by utilizing tools such as Tenable Security Center and HCL BigFix to identify and remediate security vulnerabilities on systems running Windows and Red Hat Enterprise Linux
• Utilizing Group Policies to align Windows system configuration in accordance with the DISA STIG security standards
• Maintaining production application SSL certificates and Windows Public Key Infrastructure for user authentication
• Managing user accounts, credentials, privileges, and access controls via Windows Active Directory
• Liaison to external network operations teams
• Maintaining Software Defined Network based model utilizing the Cisco ACI platform
• Maintaining Cisco ACI backbone hardware architecture utilizing Nexus spine and leaf switches as well as Application Policy Infrastructure Controllers (APIC's)
• Defining Contracts for filtering traffic between endpoints within the ACI infrastructure
• Maintaining Windows Server 2019 infrastructure
• Maintaining multi-site Windows 2019 Active Directory Domain
• Maintaining Remote Desktop Services
• Maintaining a Windows Public Key Infrastructure with certificate authority to enable smart card login from local and remote sources
• Maintaining Windows Server Update Services to enable centralized management of Windows system patches
• Performing DISA STIG security hardening on Windows Active Directory domain member hosts utilizing Group Policies
• Maintaining automatically replicating file servers to backup and provide high availability to user data
• Maintaining a BIND DNS infrastructure on Red Hat Enterprise Linux
• Education: Bachelor of Arts/Bachelor of Science