About the Position

Senior Software Engineer - SDN

Location

San Francisco Office (Fremont St)

Employment Type

Full time

Location Type

Hybrid

Department

Data Center Business

Compensation

San Francisco / San Jose: $296K – $395K
Bellevue: $266K – $356K

About the Company

Lambda, The Superintelligence Cloud, is a leader in AI cloud infrastructure serving tens of thousands of customers. Our customers range from AI researchers to enterprises and hyperscalers. Lambda's mission is to make compute as ubiquitous as electricity and give everyone the power of superintelligence. One person, one GPU.

If you'd like to build the world's best AI cloud, join us.

*Note: This position requires presence in our San Francisco, San Jose or Bellevue office location 4 days per week; Lambda’s designated work from home day is currently Tuesday.

Responsibilities

Design and build software to scale Lambda’s high performance multi-tenant cloud network
Develop reproducible automation and tooling for network configuration and deployments
Implement and operate Software Defined Networking services and related control-plane software
Engineer highly available network services through observability, failover, and redundancy features
Deliver predictable networking performance for clients via software-driven network engineering solutions
Develop, integrate, and maintain network monitoring and management tools and services
Participate in on-call and contribute to incident response tooling and automation

Requirements

5+ years of professional software engineering experience, ideally in systems, infrastructure, or networking-focused domains.
Demonstrated experience designing and implementing production-scale Software Defined Networking (SDN) systems, ideally with AWS VPC–like functionality (e.g., routing, security groups, overlays, peering).
Hands-on experience building and maintaining SDN platforms using technologies such as OpenStack Neutron, OVN, or similar network virtualization frameworks.
Deep understanding of the Linux networking stack, including namespaces, routing, iptables/nftables, network virtualization, SR-IOV, and DPDK, with the ability to reason from a systems programming perspective.
Proficiency with the Linux command line and strong understanding of networking concepts from a software engineering viewpoint.
Experience working with multi–data center and hybrid cloud networking environments, with an emphasis on automation and software-driven control planes.
5+ years of software development experience in C, Go, or Python for building network services, tooling, and automation.
Experience working with CI/CD pipelines, automated testing, and deployment systems; strong familiarity with Git, and experience operating in GitOps-driven environments for infrastructure or network configuration.
Prior involvement in on-call rotations, incident response, and building tools to improve network or system reliability.
Experience deploying, operating, and automating applications on Kubernetes, including building supporting services or tooling for networking and lifecycle management.

Nice to Have

Experience automating network configuration within public clouds using tools like Kubernetes, HELM, Terraform, and Ansible
Understanding of the SDN ecosystem (e.g. OVS, Neutron, VMware NSX, Cisco ACI or Nexus Fabric Controller, Arista CVP) and how to integrate with it programmatically
Have experience working with and building automation around Spine and Leaf (Clos) network topology
Have experience and understanding of BGP EVPN VXLAN networks and have automated their configuration or monitoring
Experience with building and maintaining multi-data center networks, SD-WAN, DWDM, and related automation
Experience integrating and automating policy and configuration for Next-Generation Firewalls (NGFW)

We Offer

Generous cash & equity compensation
Health, dental, and vision coverage for you and your dependents
Wellness and commuter stipends for select roles
401k Plan with 2% company match (USA employees)
Flexible paid time off plan that we all actually use

Equal Opportunity Employer

Lambda is an Equal Opportunity employer. Applicants are considered without regard to race, color, religion, creed, national origin, age, sex, gender, marital status, sexual orientation and identity, genetic information, veteran status, citizenship, or any other factors prohibited by local, state, or federal law.

Compensation Range: $266K - $395K

Senior Software Engineer - SDN

Job description