Network Reliability Engineer

  • Location:
    Offsite, United Kingdom
  • Area of Interest
    Engineer - Network
  • Job Type
    Professional
  • Technology Interest
    Networking, Security, Software Development, Testing
  • Job Id
    1308518

Network Engineering is responsible for providing the architecture, development, implementation and operations of the network that powers the Cisco Security cloud.


Manages all aspects of site selection, routing, switching, firewalls, transit, peering, VPN, DDOS mitigation and the global networks of Umbrella Security Cloud Network Infrastructure (formerly OpenDNS).


The scale and complexity of our network generates a constant stream of interesting challenges which are solved by using an evolving set of technologies that requires innovation in every aspect of networking.


Daily tasks include:

  • Network architecture & design
  • Routing policy
  • Routing optimization
  • Troubleshooting
  • Peering
  • Developing automated deployment and failure mitigation solutions
  • DDoS mitigation
  • New hardware selection

We do it all and are looking for super talented engineers to join a small team of experienced engineers.


Our team strongly believes in network automation, and we are committed to automating all of our repetitive tasks such as configuration management and auto-remediation of network incidents. If you share this vision, come and join us!


Who You'll Work With

Infrastructure Engineering consists of Network Engineering, Systems Engineering, Site Reliability Engineering and Security Engineering - together, we build core Internet infrastructure, security applications and distributed systems at scale.


Our environment processes millions of DNS and Proxy requests per second, across 50 data-centers and cloud infrastructure providers.


Who You Are

You have experience building and running a high-transactional, 24x7 production environment and extensive experience with Cisco routers and switches.


You also have extensive experience with IP routing protocols including BGP, OSPF and with traffic engineering techniques in BGP.


You are familiar with Peering at Internet Exchanges and working with Transit providers and have expert knowledge of both layer 2 switching and layer 3 routing.


You have a DevOps mentality - respecting a complex production environment, but can also run fast with an agile approach, always having automation in mind.


Our minimum requirements for this role:

  • Experience building and running a high-transactional, 24x7 production environment
  • Experience with Python, PHP and/or Perl
  • Extensive experience with a variety of router platforms
  • Extensive experience with routing protocols including BGP, OSPF
  • Experience with traffic engineering techniques in BGP
  • Experience with Peering at Internet Exchanges and working with Transit providers
  • Expert knowledge of layer 3 routing (ASR1k, ASR9k)
  • Experience in redundancy and high-availability in networking designs
  • Experience with tunneling protocols; IPSEC, GRE
  • Sound diagnostic ability; DDoS mitigation, packet-loss, latency or throughput problems
  • Experience with network security
  • Experience with netflow and IPv6 is a definite asset

Why Cisco

#WeAreCisco, where each person is unique, but we bring our talents to work as a team and make a difference. Here’s how we do it.


We embrace digital, and help our customers implement change in their digital businesses. Some may think we’re “old” (30 years strong!) and only about hardware, but we’re also a software company. And a security company. A blockchain company. An AI/Machine Learning company. We even invented an intuitive network that adapts, predicts, learns and protects. No other company can do what we do – you can’t put us in a box!


But “Digital Transformation” is an empty buzz phrase without a culture that allows for innovation, creativity, and yes, even failure (if you learn from it.)


Day to day, we focus on the give and take. We give our best and we give of ourselves (because giving back is built into our DNA.) We take accountability, we take bold steps, and we take difference to heart. Because without diversity of thought and a commitment to equality for all, there is no moving forward.


So, you have colorful hair? Don’t care. Tattoos? Show off your ink. Like polka dots? That’s cool.

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