Software Engineer, Traffic Infrastructure

(Menlo Park, CA – Seattle, WA)

Facebook’s mission is to give people the power to share, and make the world more open and connected. Through our growing family of apps and services, we’re building a different kind of company that helps billions of people around the world connect and share what matters most to them. 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 make the world more open and accessible. Connecting the world takes every one of us—and we’re just getting started.

Facebook’s Traffic team is seeking experienced software engineers to build terabit class systems for balancing and managing application traffic. Our Traffic team builds global and local load balancers, acceleration proxies, RPC frameworks, content delivery networks, and mobile networking stacks, plus the automation machinery that’s required to operate an internet scale edge network and handle all of Facebook’s DNS and HTTP traffic. We operate a large network of POPs around the world that we use to accelerate site traffic and cache CDN content, and we own all layer 4 and layer 7 traffic management for Facebook. We glue these varied network services together in order to orchestrate the delivery of bits from our servers to your phone or desktop.

Responsibilities

  • Develop DNS and HTTP stacks to run on varied devices and servers
  • Implement and integrate next generation protocols like HTTP2 and QUIC
  • Collaborate with Network Engineering team to design and build our next generation edge network
  • Design load balancing software to optimize traffic flow between data centers and POPs
  • Analyze and improve efficiency, scalability, and stability of network infrastructure and rich telemetry data
  • Make Facebook fast and keep the site up
  • Conduct design and code reviews

Minimum Qualifications

  • Bachelor’s Degree in Computer Science or related field (or equivalent experience)
  • 2+ years of experience in HTTP, SSL, TCP, C++, Java, Linux
  • 2+ years of experience developing and debugging system level services in C, C++, Python, or Java, particularly on Linux
  • 2+ years of experience with one or more of: telemetry data, filesystems, concurrency, multithreading, server architectures, distributed systems
  • Experience replacing network hardware devices with software services
  • Experience developing and debugging networking protocols (HTTP, SSL, QUIC, SPDY, and TCP)

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