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Network Engineer

Posted: 19 Mar 2021 Closes: 18 Apr 2021
London, United Kingdom Competitive
Permanent & Full-time 1647119668

Network Engineers at Facebook are hybrid software/network engineers who ensure that Facebook's network and related services run smoothly and have the capacity for future growth. Data Analytics, network (re)design, and automation are keys to meeting our demands; you will be responsible for conceiving, developing, and deploying software and network systems and tools that improve reliability and efficiency in our global network. Do you want to work on one of the most dynamic, fast-paced networks in the world? Do you want to develop innovative solutions to our challenges and ship them into production? Then a role on one of our network engineering teams is for you!

Network Engineer Responsibilities

  • Write and review code, develop documentation and capacity plans, and debug the hardest problems, live, on some of the largest and most complex networks and systems in the world

  • Together with your engineering team, you will share an on-call rotation and be an escalation contact for service incidents

  • (Re)Design, deploy, manage and maintain multi-vendor, multi-protocol data center, backbone and edge networks

  • Define and develop optimized network monitoring systems

  • Design and deploy new network and tooling architectures

  • Analyze data to diagnose and identify root causes to network issues

  • Partner alongside the best engineers in the industry on the coolest stuff around - the code and systems you work on will be in production and used by billions of users all around the world

Minimum Qualifications

  • Engineering degree, or a related technical discipline or equivalent experience

  • Experience coding in higher-level languages (e.g., Python, C++, Go, etc.)

  • Experience in configuration and maintenance of network devices and NMS systems, or applications such as web servers, load balancers, relational databases, storage systems and messaging systems

  • Experience learning software, frameworks and APIs

  • Experience developing and understanding network device configuration for at least one vendor (Juniper, Cisco, Arista, Brocade, Ciena, Infinera, Linux, etc.)

  • Experience understanding and mitigating network hardware and topology failures

Preferred Qualifications

  • BS or MS in Computer Science or Computer Engineering

  • Expert knowledge of TCP/IP and IPv6

  • Understanding of routing and switching - hardware design and knowledge of forwarding and data planes

  • Understanding and development of Load Balancing and Peering in CDN Architectures

  • Protocol experience in one or more of BGP, MPLS, ISIS or similar routing protocols - understanding of typical configurations and performance

  • Working knowledge of ROADM, coherent transponders and long-haul operation optical networks

  • Working knowledge of offensive or defensive security solutions for systems and networking

  • Understanding and execution of data modeling and system performance analytics

  • Understanding operations research, combinatorial optimization, stochastic optimization, machine learning, queuing theory, probability theory


About the Facebook company

Facebook's mission is to give people the power to build community and bring the world closer together. Through our family of apps and services, we're building a different kind of company that connects billions of people around the world, gives them ways to share what matters most to them, and helps bring people closer together. Whether we're creating new products or helping a small business expand its reach, people at Facebook are builders at heart. Our global teams are constantly iterating, solving problems, and working together to empower people around the world to build community and connect in meaningful ways. Together, we can help people build stronger communities - we're just getting started.

Facebook is committed to providing reasonable support (called accommodations) in our recruiting processes for candidates with disabilities, long term conditions, mental health conditions or who are neurodivergent, and to candidates with sincerely held religious beliefs or requiring pregnancy related support. If you need support, please reach out to


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