Software Engineer - Host/Cloud Networking

Meta•Menlo Park, CA

9d•$219,000 - $301,000

About The Position

Meta is investing heavily on the Meta Cloud. As part of this push we want to build a cloud native infrastructure optimized for AI development. The Host Networking team owns the networking stack that runs on the compute platforms at Meta, spanning the software dataplane/host networking platform and select custom hardware components that power connectivity, performance, and security across our fleet. As part of the Meta Compute Initiative, we’re evolving this foundation to support a cloud-native, Kubernetes-first AI infrastructure—including platform primitives like network virtualization, load balancing/service connectivity, and distributed firewall/policy enforcement—at Meta scale. This is a chance to lead architecture and delivery while influencing a broad cross-functional ecosystem, leveraging (and contributing to) open source where it helps us move faster. We build the platform layer and partner closely with the many application teams that run on top.

Requirements

Bachelor's degree in Computer Science, Computer Engineering, relevant technical field, or equivalent practical experience
10+ years software development experience in industry settings or PhD with 4+ years of experience
4+ Years Proven experience designing and shipping networking dataplane/control-plane systems in production (e.g., host networking, L4/L7 load balancing, NAT/conntrack, firewalls/policy, network virtualization)
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 drive optimal solutions

Nice To Haves

Experience in one or more of: Building or leading cloud-native networking platforms in production (e.g, large-scale Kubernetes platforms, CNI/service connectivity/policy)
Expertise in one or more networking domains: network virtualization, L4/L7 load balancing, firewalls / policy enforcement, NAT/conntrack, traffic engineering
Strong Linux systems depth, including Linux networking internals (kernel networking stack, performance tuning, profiling, debugging)
Experience with modern dataplane techniques and high-performance networking (e.g., eBPF/XDP, DPDK/VPP—where applicable)
Experience operating and hardening networking systems at scale: observability, safe rollouts, incident response, reliability/SLOs
Meaningful experience leveraging and/or contributing to open-source networking ecosystems (adoption, upstream contributions, maintainership)

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