Senior Software Engineer, User-Space Networking

Baseten; New York (NY); On-site; USD 160,000 - 330,000; Full time

Benefits offered by this job

Equity

Medical, Dental, Vision insurance

Flexible PTO

Parental leave

Fertility stipend

401(k) plan

Learning & networking opportunities

Job summary

Baseten is seeking an Agent Infra Engineer to design and build the user-space, VPP-based data plane powering Baseten Sandboxes. You will connect microVM sandboxes across regions with multi-tenant overlays and expose the network as a programmable API for the platform.

You’ll collaborate with compute, storage, GPU infrastructure, and datacenter teams to cut latency, improve scale, and ensure secure ingress/egress with TLS and firewalling. Join a small team with end-to-end ownership.

Qualifications

• Experience with user-space packet processing (DPDK, VPP, or similar) or virtualized network functions (VNF/NFV).
• Experience building multi-tenant networking in production (VXLAN, GENEVE, VRF).
• Experience building a software-defined network/overlay network or packet-processing data plane in production.

Responsibilities

• Design and build the user-space, VPP-based data plane that connects microVM sandboxes to each other, to Baseten services, and to the internet.
• Build multi-tenant virtual private networking and overlays across regions.
• Expose the network as a programmable API that the rest of the platform calls.
• Cut latency and raise connection scale for agent-to-agent and agent-to-service traffic.
• Build routing that sends each request to the nearest region and keeps connections working as sandboxes suspend and resume.
• Build secure ingress and egress for sandboxes, including firewalling, static egress IPs, and custom domains with managed TLS.
• Build L7 proxies for request inspection, filtering, secret injection, and auditing.
• Own per-sandbox addressing, including IPv6, and network isolation between tenants.
• Build observability for the packet path across guest, host, and network, and debug production issues end to end.
• Work closely with the compute, storage, GPU infrastructure, and datacenter teams

Skills

Rust

Go

C/C++

Systems programming

Networking

VPP/FD.io

Overlay networks

TCP/IP

Latency optimization

Debugging

Small teams

Tools

VPP/FD.io

EVPN

VXLAN

GENEVE

VRF

eBPF/XDP

Job description

Baseten is seeking an Agent Infra Engineer to design and build the user-space, VPP-based data plane powering Baseten Sandboxes. You will connect microVM sandboxes across regions with multi-tenant overlays and expose the network as a programmable API for the platform.

You’ll collaborate with compute, storage, GPU infrastructure, and datacenter teams to cut latency, improve scale, and ensure secure ingress/egress with TLS and firewalling. Join a small team with end-to-end ownership.