Enterprise Network Reliability Engineer

Enterprise Network Reliability at Facebook is a hybrid software/network team ensuring our enterprise network and related services run smoothly, can adapt and grow quickly, and have capacity for the future. Automation is the key to meeting our demands.

Our team is comprised of varying levels of experience and backgrounds. Relevant industry experience is important (e.g. Site Reliability Engineer (SRE), Systems Engineer, Software Engineer, DevOps Engineer, Network Engineer), but ultimately, less so than your demonstrated abilities and attitude. We sail into uncharted waters every day at Facebook and we are always learning.

You will have a strong technical background, be innovative and agile, collaborate well within and across teams, and have very strong communication skills - a visionary who challenges the status quo and believes that collaboration technologies can level-up productivity.

Do you want to work at one of the most dynamic, fast-paced companies in the world? Do you want to develop innovative solutions to our challenges and ship them? Yes?! Then this is the role for you!

This is a full time role based out of our London office.


  • Design, implement and maintain new and existing systems, such as monitoring and analysis, management and alerting, for a complex enterprise network environment that is growing at an unprecedented pace
  • Actively discover new automation opportunities and build them
  • Produce systems that are scalable, automated, and well-documented, and train others to take on operations
  • Write and review code, develop documentation, debug complex problems, often in production
  • With your team, you will share an on-call rotation and be an escalation contact for incidents related to our products
  • Work with Facebook's Production Engineering teams to find ways to leverage the scale and complexity of the larger facebook.com infrastructure to solve problems for enterprise customers
  • Collaborate with other engineering teams to automate various processes, aid in capacity planning and changes to network architecture
  • Partner alongside the best engineers in the industry on the coolest stuff around
  • Combine open-source and commercial technologies to build services that will have an impact on the business
  • Work in a heterogeneous environment containing diverse operating systems and applications, and make them work well together
  • A strong, demonstrable history of delivering great work.
  • Awesome communications skills.
  • 3+ years experience working in at least one high-level language (software development is/was a main focus of your job), even if it's not one that Facebook uses
  • Ability to rapidly learn new languages (Python is in heavy use in our team), technologies, frameworks and APIs
  • Comfortable working with legacy code: you always leave code better than you found it
  • Sharp and tenacious troubleshooting skills: you can fix anything.
  • Good knowledge of UNIX-based operating systems and TCP/IP fundamentals
  • Most of these should be familiar to you, you'll be strong in at least one: MySQL, DHCP, SSH, DNS, SNMP
  • Experience of implementing/maintaining monitoring and alerting for production systems
  • Experience with configuration management tools (e.g. Puppet, Chef or Ansible) in production environments
  • BS or MS in Computer Science, Computer Engineering, or a related technical discipline, or equivalent experience. But, if you're good enough, you're good enough!
  • Knowledge of front-end development and technologies such as PHP/Hack, React/Redux
  • Experience in systems design and architecture: being able to see the big picture
  • Mentoring and/or coaching experience, being generous with your time and expertise to help others
  • Experience working with IPv6 and/or dual stack networks
  • Experience with a vendor-based network stack is helpful, but not essential: Routers and switches, Firewalls and load balancers, Wireless and VPN, Typical vendor OS experience
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 accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, you may contact us at accommodations-ext@fb.com .

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Facebook is proud to be an Equal Employment Opportunity and Affirmative Action employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or other applicable legally protected characteristics. You may view our Equal Employment Opportunity notice here. We also consider qualified applicants with criminal histories, consistent with applicable federal, state and local law. You may view Facebook's Pay Transparency Policy and Equal Employment Opportunity is the Law notice by clicking on their corresponding links. Additionally, Facebook participates in the E-Verify program in certain locations, as required by law.

Facebook is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, you may contact us at accommodations-ext@fb.com . Requests sent to this email address that do not pertain to disability or religious accommodations cannot be answered.

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