Network Engineer II
As a Network Engineer II at Vail, you’ll work on a team in designing, implementing, capacity planning, incident response, and trouble-shooting. You will work in a highly technical environment alongside software developers, systems engineers, and other network engineers to design and deliver solutions to complex technical problems.
Responsibilities
- Contribute to network design, including design prototyping in virtual or lab environments
- Implement network solutions, including router/switch/firewall configuration
- Trouble-shoot issues including at the protocol level (for instance by analyzing packet traces) in a customer-facing situations
- Continuously improve network monitoring and security
- Participate on project teams in delivering solutions
- Create and maintain network procedures and workflows
- Contributing articles to knowledge bases of network configuration procedures, network designs, trouble-shooting techniques, redundancy and failure mode assessments
- Capacity planning, e.g. performing reviews of and reporting on utilization
- Redundancy and failure mode assessments of proposed solutions
- Draft presentations on network architecture and connectivity options with regard to high-availability and failure modes to both internal and client audiences
- Test disaster recovery and incident response plans
- Work independently with light supervision/instruction
- Operationalize common tasks by creating procedural documentation and knowledge base articles
- Oversee work of junior network engineers
- Be on-call for issue handling and incident response, including after hours
- Be available for off-hours deployments
Tools & Technology used
- Cisco IOS, Juniper JunOS, OSPF, BFD, BGP, VRFs, MPLS, Wireshark, Visio, firewalls, NAT, link aggregation, ACLs, VRRP, HSRP, GRE, IPv6, Linux/Windows/VMware operating systems, JIRA, Observium, spanning tree, SNMP, Syslog, TACACS+, PKI, IPsec VPN, DNS, DHCP.
Qualifications
- Bachelor's degree or foreign equivalent degree in Computer Science, Engineering, Mathematics, Electrical Engineering, Electronics and Communication Engineering, or a closely related field
- Networking knowledge should cover CCNP/JNCIP-ENT routing and switching topics
- 4 years of experience as a network engineer or similar networking position
- Works independently
- Proven experience maintaining mid-sized server network environments with strong high-availability requirements
- Experience configuring and troubleshooting OSPF and BGP
- Experience working with Cisco and Juniper routers, switches, and firewalls
- Can trouble-shoot most routing/firewall/NAT issues independently and complex networking issues with some guidance
- Excellent interpersonal communication skills
- Experience with unix, Windows, VMware operating system networking preferred
Skills
- IP networking experience in the Telecom (e.g. cellular/wireless/IVR hosting) industry
- Knowledge of TCP/UDP/IP protocols, such as TCP handshake, windowing, congestion algorithms, etc.
- Knowledge of unix and Windows network administration preferred, including familiarity with Windows network services, ports used, how to configure interfaces with IPs, check the system routing tables, host-based firewalls, ARP, IP routing, etc
- IPv6
- Juniper routers and SRX series management
- Firewall policy management and deployment
- Redundant multi-site interconnectivity design and implementation
- Multicast PIM-DM, PIM-SM, and SSM
- Virtual private networks and network overlays
- Redundant IPsec tunnel configurations
- Network equipment testing and evaluation
- Network device virtualization experience, e.g. GNS3
- Network protocol analysis with wireshark
- TACACS+ configuration;
- High availability local and geographic redundancy experience;
- Management domain separation and out-of-band management;
- Familiarity with SIP call signaling and RTP media streams;
- Experience in multi-tenant service provider environment with overlapping IP space separation (dual NAT / IPsec, GRE, IPinIP, L2TPv3 tunneling and overlay / virtual routers and firewalls / VLANs);
- Redundancy and performance testing and evaluation of networks for production release in telecom environments;
- Develop test strategies for failure mode and performance testing;
- An ability to solve complex problems in a short amount of time;
- Task automation and scripting.
Logistics
- Available for off-hours deployments, maintenance, and on-call incident response
- Must be willing to occasionally travel within the U.S. to datacenters and for client visits.
- Position is based out of Deerfield, IL office but may require occasional work from the Chicago, IL office.