Software Engineer, Traffic Infrastructure

Facebook   •  

Boston, MA

Industry: Technology


Less than 5 years

Posted 20 days ago

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


  • 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)