Infrastructure Engineer, On-Perm Systems

Lumafield; San Francisco (CA); On-site; USD 140,000 - 210,000; Full time

Benefits offered by this job

Health and wellness stipend

401k

Parental leave

Flexible PTO

Commuter benefits

Company events

Job summary

Lumafield is seeking an engineering-focused professional to design and operate high-performance on-prem hardware systems in the San Francisco area. You will own bare-metal provisioning, network config, and integrated software services, delivering repeatable product-ready hardware platforms.

You will collaborate with Manufacturing and Field Services to move prototypes into scalable offerings, leveraging Kubernetes and secure provisioning workflows.

Qualifications

• 3+ years building and operating physical server infrastructure.
• Experience with Linux server administration, network troubleshooting, docker deployments, productionizing systems.
• Experience configuring Linux systems, applying best practices, and automating workflows with Ansible and scripting.
• Hands-on with bare-metal provisioning: PXE/netboot, cloud-init, golden images, and firmware or BIOS configuration through Redfish or IPMI.
• Real networking depth: VLANs and subnetting, DHCP and DNS, firewall policy, link aggregation.
• Working knowledge of Kubernetes on fixed capacity.

Responsibilities

• Design standalone, high-performant On-Prem systems: compute nodes, storage topology, networking, power, and rack layout.
• Prototype and profile: benchmark throughput, network bandwidth, and memory contention.
• Own the engineering deliverables Manufacturing needs to build these without you: hardware and software BOMs, wiring and rack diagrams, network and IP plans, and provisioning and test work instructions.
• Harden the appliance for the customer's site: encryption, network segmentation and firewall policies, and update mechanisms that survive an air gap.
• Run Kubernetes on fixed capacity - node pools, worker placement, and the storage and database services beneath them
• Partner with Manufacturing, Supply Chain, and Field Services to move from prototypes to a product we can build repeatedly, and stay on the hook for what comes back from the field.
• Feed on-prem constraints back into our technology roadmap, aligning the next generation of the pipeline with the hardware it will live on.

Skills

Physical server infrastructure

Linux server administration

Network troubleshooting

Docker deployments

Ansible automation

Scripting

Bare-metal provisioning

Redfish/IPMI

Networking (VLANs, DHCP, DNS, firewall

Kubernetes on fixed capacity

Tools

PXE/netboot

Redfish

IPMI

Docker

Kubernetes

Ansible

Golden images

Job description

About Lumafield:

Lumafield was founded in 2019 to upgrade manufacturing.

We are engineers with deep experience across the product development cycle, from initial ideas to shipping hardware, across industries and specializations, who became frustrated by the cost and complexity of modern manufacturing. So we decided to upgrade it.

Engineers make million-dollar decisions every day, and they need tools that give them the greatest possible insight into their products. By offering unprecedented visibility into products, as well as AI-driven tools that highlight problems and generate quantitative data, Lumafield promises to revolutionize the way complex products are created, manufactured, and used across industries. We started with industrial CT scanning, which for us was the most valuable but underutilized tool in the manufacturing toolbox, enabling us to rapidly inspect essential components non-destructively.

We rebuilt the whole system, from X-ray capture, to computer vision analysis, to web-based collaboration, to the entire business model, making the most advanced manufacturing tech more accessible to every industry. Our company, like our platform, is designed for upgrades. We’re building for greater intelligence, autonomy, and speed. For deeper vision, operational excellence, and powerful insights. And then we’ll upgrade it all again.

Lumafield is headquartered in San Francisco, CA. and has an office in Cambridge, MA.

What you'll do:

• Design standalone, high-performant On-Prem systems: compute nodes, storage topology, networking, power, and rack layout
• Prototype and profile: benchmark throughput, network bandwidth, and memory contention
• Own the engineering deliverables Manufacturing needs to build these without you: hardware and software BOMs, wiring and rack diagrams, network and IP plans, and provisioning and test work instructions.
• Harden the appliance for the customer's site: encryption, network segmentation and firewall policies, and update mechanisms that survive an air gap.
• Run Kubernetes on fixed capacity - node pools, worker placement, and the storage and database services beneath them
• Partner with Manufacturing, Supply Chain, and Field Services to move from prototypes to a product we can build repeatedly, and stay on the hook for what comes back from the field.
• Feed on-prem constraints back into our technology roadmap, aligning the next generation of the pipeline with the hardware it will live on.

About you:

• 3+ years building and operating physical server infrastructure you can point at. You have racked it, cabled it, sized its power, and successfully debugged issues after deployment
• Experience with Linux server administration, network troubleshooting, docker deployments, productionizing systems
• Experience in configuring Linux systems, applying best practices, and automating workflows with Ansible and scripting.
• Hands-on with bare-metal provisioning: PXE/netboot, cloud-init, golden images, and firmware or BIOS configuration through Redfish or IPMI.
• Real networking depth: VLANs and subnetting, DHCP and DNS, firewall policy, link aggregation
• Working knowledge of Kubernetes on fixed capacity

Bonus:

• Production experience with ZFS: pool topology, resilver behavior, and native encryption.
• Experience shipping hardware that leaves the building - manufacturing handoff, ECO processes, or field service of deployed systems.
• Familiarity with NVIDIA GPU compute on ARM platforms (DGX, Jetson, CUDA), or with air-gapped or sensitive data deployments

Lumafield offers both competitive cash and equity compensation, as well as a health & wellness stipend, 401k, parental leave, flexible PTO, commuter benefits, company wide events and more!

Lumafield is committed to building a team that represents a variety of backgrounds, perspectives, and skills, because the more inclusive we are, the better our work will be. Do you feel like your skills don’t meet every single requirement listed?

In keeping with our beliefs and goals, no employee or applicant will face discrimination or harassment based on: race, color, ancestry, national origin, religion, age, gender, marital domestic partner status, sexual orientation, gender identity, disability, genetic information or veteran status.