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Open nowPosted 353 days ago

Senior Software Engineer, Network Platform

Moonlite5 open roles

Pay
$165,000 – $225,000 a year
Where
Chicago, IL or Remote
Work mode
Remote
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Your applicationOpen nowSenior Software Engineer, Network PlatformMoonlite · Chicago, IL or Remote

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Share of postings closed within
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  4. 19.3%14 days
  5. 35.6%30 days
  6. 57.8%60 days
This job: posted 353 days ago

The posting

Moonlite delivers high-performance AI infrastructure for organizations running intensive computational research, large-scale model training, and demanding data processing workloads. We provide infrastructure deployed in our facilities or co-located in yours, delivering flexible on-demand or reserved compute that feels like an extension of your existing data center. Our team of AI infrastructure specialists combines bare-metal performance with cloud-native operational simplicity, enabling research teams and enterprises to deploy demanding AI workloads with enterprise-grade reliability and compliance.

Your Role:

You will be fundamental to building our software-defined networking (SDN) platform that enables high-performance, isolated networking for distributed computing, model training, inference, and data-intensive workloads. Working closely with our network, infrastructure, and product teams, you'll design and implement the network orchestration and provisioning systems that manage DPU-accelerated networking, tenant isolation, and network lifecycle management, enabling researchers and engineers to access enterprise-grade networking with cloud-like simplicity.

Job Responsibilities

  • Software-Defined Networking Architecture: Collaborate with infrastructure to design and build scalable SDN orchestration systems leveraging NVIDIA Bluefield-3 DPUs to deliver programmable, high-performance networking for AI workloads with hardware-accelerated forwarding isolation.
  • Network Provisioning & Lifecycle Management: Implement automated SDN provisioning systems that handle VPC creation, subnet allocation, routing configuration, and network resource lifecycle from deployment through decommissioning.
  • DPU Platform Engineering: Develop platform capabilities for managing Bluefield-3 DPUs including SR-IOV virtual function management, OVS offload configuration, network function deployment, and integration with compute orchestration systems.
  • Multi-Tenancy & Network Isolation: Build enterprise-grade network isolation using VPCs, VXLAN, and hardware-accelerated forwarding to ensure complete tenant separation while maintaining high-performance connectivity for GPU clusters and distributed workloads.
  • High-Performance Networking: Collaborate with infrastructure to optimize network paths for RDMA, RoCE, and GPU-to-GPU communication, ensuring minimal latency and maximum throughput for distributed training and large-scale computational workloads.
  • Network APIs & Integration: Develop robust APIs and SDKs for network resource management that integrate seamlessly with compute and storage platforms, enabling programmatic network provisioning and configuration.
  • Network Observability: Implement comprehensive network monitoring, telemetry, and troubleshooting systems that provide visibility into network performance, utilization, and tenant traffic patterns.
  • Security & Policy Management: Build platform network security features including security groups, firewall rules, and policy enforcement that protect tenant workloads while enabling flexible network configuration.

Requirements

  • Experience: 5+ years in software engineering with proven experience building network platforms, SDN systems, or network automation for production environments.
  • Networking Expertise: Deep understanding of networking fundamentals including TCP/IP, VLANs, VXLAN, BGP, OSPF, routing protocols, and data center network architectures.
  • Software-Defined Networking: Background in SDN concepts, network virtualization, overlay networks, and programmable networking technologies.
  • Programming Skills: Experience with Shell scripting and/or Python
  • Linux Networking: Strong experience with Linux networking stack, including network namespaces, iptables/nftables, Open vSwitch, and kernel networking systems.
  • High-Performance Networking: Understanding of RDMA, RoCE, Infiniband, and low-latency networking requirements for distributed computing and GPU workloads.
  • Problem-Solving & Architecture: Demonstrated ability to solve complex networking performance and scalability challenges while balancing pragmatic shipping with good long-term architecture.
  • Autonomy & Communication: Comfortable navigating ambiguity, defining requirements collaboratively, and communicating technical decisions through clear documentation.
  • Commitment to Growth: Growth mindset with continuous focus on learning and professional development.

Preferred Qualifications

  • Experience with NVIDIA Bluefield DPU programming and DOCA framework
  • Background with network function virtualization (NFV) and service function chaining
  • Knowledge of Kubernetes networking (CNI plugins, network policies, service mesh)
  • Experience building network control planes or SDN controllers
  • Familiarity with network automation frameworks and infrastructure-as-code for networking
  • Understanding of data center fabric architectures (spine-leaf, CLOS topologies)
  • Experience with network security and compliance requirements in regulated industries
  • Background building networking for research institutions, HPC environments, or cloud providers

Key Technologies

Python, Go, NVIDIA Bluefield DPUs, Open vSwitch, VXLAN, SR-IOV, RDMA, RoCE, InfiniBand, BGP, Linux networking, Terraform, FastAPI, gRPC

Why Moonlite

  • Build Next-Generation Infrastructure: Your work will create the platform foundation that enables financial institutions to harness AI capabilities previously impossible with traditional infrastructure.
  • Hands-On Ownership: As an early engineer,, you'll have end-to-end ownership of projects and the autonomy to influence our product and technology direction.
  • Shape Industry Standards: Contribute to defining how enterprise AI infrastructure should work for the most demanding regulated environments.
  • Collaborate with Experts: Work alongside seasoned engineers and industry professionals passionate about high-performance computing, innovation, and problem-solving.
  • Start-Up Agility with Industry Impact: Enjoy the dynamic, fast-paced environment of a startup while making an immediate impact in an evolving and critical technology space.

What We Offer

  • Competitive salary plus startup equity
  • On-the-job training and mentorship from experienced engineers
  • Opportunities for career development within a high-growth environment
  • Health, dental, and vision insurance, 100% covered for the employee
  • 401(k) with up to 6% company match
  • Paid time off and holidays

We are an equal opportunity employer and welcome applicants from all backgrounds.

#li-remote

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