Software Engineer, Network Infrastructure

Meta’s network infrastructure powers some of the world’s largest and most complex distributed systems, supporting billions of users across social media, AI, and immersive computing platforms. We are seeking a Staff Software Engineer to help design, build, and operate the software systems that underpin Meta’s global network fabric - spanning data center interconnects, edge services, traffic engineering, and network automation. In this role, you will lead the development of scalable, high-reliability software that manages and optimizes network infrastructure at hyperscale, working closely with network engineers, hardware teams, and platform partners to deliver production systems that keep Meta’s network fast, resilient, and efficient.

Software Engineer, Network Infrastructure Responsibilities:

• Architect and lead delivery of Meta Compute’s cloud-native host networking platform, owning end-to-end technical direction from design through production rollout
• Build/modernize Kubernetes networking features integrated with Meta’s host networking stack (e.g., dataplane integration, operability, scaling characteristics)
• Design and implement core networking primitives: network virtualization, load balancing/service connectivity, and distributed firewalling/policy enforcement
• Drive time-to-market execution: define milestones, de-risk key technical choices early and deliver iterative production increments
• Lead broad cross-functional alignment across compute, storage, platform, security, and hardware/fabric partners-owning interfaces/contracts and end-to-end outcomes
• Leverage and influence open-source ecosystems: evaluate open-source building blocks, contribute improvements where needed, and ensure Meta’s solution is maintainable and operable long-term

• 10+ years of experience in software development for networking or infrastructure systems, or a PhD with 4+ years of experience in a relevant technical area
• Hands-on Kubernetes networking experience in production (e.g., CNI, Services, NetworkPolicy/policy models, service connectivity/load balancing integration)
• Proficiency in C/C++ and at least one scripting language (Python/Shell scripting)
• Experience with developing and automating test suites
• Demonstrated experience working across disciplines to align on technical decisions and deliver integrated solutions, * Experience collaborating closely with hardware and ASIC design teams, contributing to hardware specifications, co-designing hardware-software interfaces, and influencing silicon feature sets based on software requirements
• Expertise in high-performance networking frameworks and techniques such as DPDK, eBPF/XDP, AF_XDP, io_uring, kernel bypass, zero-copy I/O, and RDMA/RoCEv2
• Direct experience with DPU SoC/SmartNIC platforms
• Experience building or contributing to Kubernetes operators, controllers, or device plugins that manage hardware-accelerated networking or storage resources
• Familiarity with Linux networking internals such as netdev subsystem, TC/iptables/nftables, network namespace isolation, traffic shaping, and kernel driver development
• Experience in hyperscale or cloud-provider environments

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.