Network Engineer

| Chicago

Network Engineer

Vail Systems Company Profile

The human voice is capable of conveying nuances and meaning that just can't be expressed through clicks and text messages. And for that reason, voice interactions have always had a special power to shape our perceptions and experiences. At Vail, we believe in the unique power of voice interactions to create more expressive, more intimate, and more efficient interpersonal interactions. Our experts work with Fortune 500 companies to help them serve their customers more efficiently and effectively through the use of various voice technologies. From basic network services, to state-of-the-art IP telephony, to cutting edge real-time analytics, Vail technology makes millions of voice interactions better every day.

Network Engineer

As a Network Engineer 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.

What you can expect to be doing:

  • 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 customer-facing situations
  • Continuously improve network monitoring and security
  • Participate on project teams in delivering solutions
  • Create and maintain network procedures and workflows
  • Contribute 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
  • Oversee work of junior network engineers
  • Be on-call for issue handling and incident response, including after hours
  • Be available for off-hours deployments

 To be considered for this position you must have:

  • 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 of CCNP/JNCIP-ENT routing and switching topics
  • 4 years' experience as a network engineer or similar networking position
  • 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
  • Ability to trouble-shoot most routing/firewall/NAT issues independently and complex networking issues with some guidance
  • Experience with UNIX, Windows, VMware operating system networking preferred
  • Ability to work independently
  • Excellent interpersonal communication skills

Ideally you will also be able to demonstrate:

  • IP networking experience in the Telecom industry (e.g. cellular/wireless/IVR hosting)
  • 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, configuration of interfaces with IPs, system routing tables, host-based firewalls, ARP, IP routing, IPv6, etc.
  • 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/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

 Tools & Technology

  • 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.

 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

What we are offering:

  • Comprehensive benefits package including health, dental, vision, disability, and life insurance
  • 401(k) with company match
  • Pre-taxed medical and commuter benefits
  • Flexible work schedule
  • Health club membership
  • Company sports teams
  • Knowledge sharing events such as book clubs, lightning talks, brown bag lunches, and seminars
  • Tight-knit and collaborative culture

 

 

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Technology we use

  • Engineering
    • C#Languages
    • C++Languages
    • JavaLanguages
    • JavascriptLanguages
    • PerlLanguages
    • PythonLanguages
    • RubyLanguages
    • AngularJSFrameworks
    • DjangoFrameworks
    • Node.jsFrameworks
    • Ruby on RailsFrameworks
    • Microsoft SQL ServerDatabases
    • MongoDBDatabases
    • MySQLDatabases

Location

We are located on the Chicago River next to Ogilvie and Union Station for easy commuting and there are hundreds of restaurants to choose from.

What are Vail Systems, Inc. Perks + Benefits

Health Insurance & Wellness Benefits
Dental Benefits
Vision Benefits
Health Insurance Benefits
Onsite Gym
Retirement & Stock Options Benefits
401(K) Matching
Child Care & Parental Leave Benefits
Flexible Work Schedule
Vacation & Time Off Benefits
Generous PTO
Perks & Discounts
Casual Dress
Commuter Benefits
Company Outings
Stocked Kitchen

Additional Perks + Benefits

Employee Referral Bonuses. Gym Memberships. Collaborative Work Space. Competitive Pay.

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