Software Engineer - Host Networking

At Meta, we're building and operating one of the world's most dynamic and fast-paced networks, powering our global data centers and supporting cutting-edge technologies like AI, Generative AI, Recommendation engines, and Metaverse. Our network infrastructure teams are responsible for developing, deploying, and operating this complex system, covering the entire network lifecycle from hardware development to operation. We're seeking software engineers to join our teams and help build scalable distributed systems, develop innovative solutions to our challenges, and ship them into production. As part of our network engineering teams, you'll have the opportunity to work on cutting-edge switching technology, collaborate with talented engineers, and contribute to the development of Meta's hyper-scale network infrastructure. Software Engineer - Host Networking Responsibilities: • Design, develop, and validate drivers, firmware, and software for network devices, transport stacks, and AI workloads • Debug complex system-level issues and lead performance tuning exercises to optimize software stack performance • Understand software components from multiple partner teams, lead integration efforts, and drive continued development • Develop and automate test suites for CI/CD framework and various components • Collaborate with partner teams to integrate software components, align on goals, and participate in oncall rotations • Design, develop, and deploy services to manage datacenter network switches and forwarding functions • Enhance HPC collective communication and parallel computing libraries (NCCL, RCCL, OneCCL, MPI) Minimum Qualifications: • Currently has, or is in the process of obtaining a Bachelor's degree in Computer Science, Computer Engineering, relevant technical field, or equivalent practical experience. Degree must be completed prior to joining Meta • 2+ years software development experience in industry settings or PhD degree +9 months of experience • Proficiency in C/C++ and at least one scripting language (Python/Shell Scripting) • Experience with network devices and products (routers, switches, adapters, load balancers) and an understanding of network routing protocols • Experience with developing and automating test suites Preferred Qualifications: • Systems programming, TCP/IP, HTTP/HTTPS, SPDY, DNS, and load balancers • Linux Kernel, especially drivers and network stack • Working knowledge of transport stack particularly Remote Direct Memory Access (RDMA) and/or RDMA over Converged Ethernet version 2 (RoCEv2) • Qemu, FPGA Emulation environment is a plus • Parallel computing platforms such as CUDA, RoCM and OpenCL • Experience with one of Platform services (program, control, and monitor Optics, Physical Layer (PHY), FPGAs, sensors, fan control, power etc), Board Support Package (BSP), Operating Systems, Kernel, Bootloader, Power Management, Real-Time Operating System (RTOS), Linux About Meta: Meta builds technologies that help people connect, find communities, and grow businesses. When Facebook launched in 2004, it changed the way people connect. Apps like Messenger, Instagram and WhatsApp further empowered billions around the world. Now, Meta is moving beyond 2D screens toward immersive experiences like augmented and virtual reality to help build the next evolution in social technology. People who choose to build their careers by building with us at Meta help shape a future that will take us beyond what digital connection makes possible today—beyond the constraints of screens, the limits of distance, and even the rules of physics. Meta 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, or related medical conditions), sexual orientation, gender, gender identity, gender expression, transgender status, sexual stereotypes, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics. We also consider qualified applicants with criminal histories, consistent with applicable federal, state and local law. Meta participates in the E-Verify program in certain locations, as required by law. Please note that Meta may leverage artificial intelligence and machine learning technologies in connection with applications for employment. Meta is committed to providing reasonable accommodations for candidates with disabilities in our recruiting process. If you need any assistance or accommodations due to a disability, please let us know at accommodations-ext@fb.com. $58.65/hour to $181,000/year + bonus + equity + benefits Individual compensation is determined by skills, qualifications, experience, and location. Compensation details listed in this posting reflect the base hourly rate, monthly rate, or annual salary only, and do not include bonus, equity or sales incentives, if applicable. In addition to base compensation, Meta offers benefits. Learn more about benefits at Meta.