Posted 6 months ago by

Network Engineer

Denver, CO, United States
Employment: Full Time

SendGrid is a fast-growing email services company. We serve customers like Uber, Spotify, Ebay, Yelp, and Glassdoor, and we send 2% of the world’s total email. We are looking for a talented and passionate individual to help manage our world-class SaaS email delivery infrastructure. You will be part of a team that ensures the reliability and performance of a large and diverse tech stack. You will maintain and extend the network infrastructure, and serve as an information conduit back to other Ops team members. Additionally, you will continually improve the velocity of our deployment pipeline through automation and monitoring of network systems.

We’ve got a fun environment with lots of great amenities, huge opportunities, and amazing coworkers.

What You’ll Do

  • Live by and champion our cultural values of Happy, Hungry, Honest, and Humble
  • Take personal responsibility for ensuring that all network environments and related systems are available 24/7
  • Troubleshoot and remediate issues impacting the availability or operation of the network infrastructure
  • Plan, implement, support, and maintain switches, firewalls, routers, proxies, data centers, and networking infrastructure to prevent productivity and data loss
  • Assist in design, documentation, configuration, integration, and installation of complex network infrastructure

Our stack includes:

  • Automation using Ansible, Python, Napalm
  • Configuring, troubleshooting and designing networks with Juniper, Fortinet, Arista, PulseSecure, and Software Defined Networking

About You

  • You don’t just learn how things work, you learn why
  • You pick up new technologies quickly
  • You don’t believe in problems that cannot be solved
  • You can perform 'guerrilla capacity planning' for internet service architectures
  • Proficient in all of the following areas:
  • Understanding of WAN, LAN, DMZ, VPN’s, TCP/IP, DNS, VLANs, etc. in a distributed environment
  • BGP, iBGP, OSPF, and VRFs
  • Layer 2 protocols and overlay networks (LACP, MLAG, VXLAN, etc.)
  • Network certifications (Juniper, Cisco, or Arista)
  • Understanding of LAN/WAN technologies - OC3, DS3 / E3, MPLS, DWDM, Metro Ethernet
  • Competent in configuration management and monitoring/instrumentation
  • Proficient in a unix shell environment

Bonus Points

  • Deep knowledge of load balancing technologies (HAProxy preferred)
  • Deep knowledge of datacenter virtualization (KVM/OpenStack/OVS, etc.)
  • Linux system administration
  • Monitoring and metrics (Sensu and Graphite preferred)

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