Senior Platform Engineer - Core Infrastructure

About the Position

Senior Platform Engineer - Core Infrastructure

Join Lambda, The Superintelligence Cloud, as a Senior Platform Engineer - Core Infrastructure to build and scale our AI cloud infrastructure. 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

• Architect, deploy, and operate Kubernetes clusters across Lambda's bare-metal datacenters.
• Build and maintain automation for cluster lifecycle management: provisioning, upgrades, and scaling.
  • Similar to SRE-level coding abilities (small scripts, k8s operators/CRDs a plus)
• Own the reliability, performance, and security of Kubernetes workloads in production.
• Implement observability, logging, and alerting for clusters and critical workloads.
• Partner with product teams to design scalable, cloud-native services.
• Set the standards for resource management, networking, and RBAC across the platform.
• Lead incident response, root-cause analysis, and post-mortems for platform issues.
• Mentor junior engineers and raise the bar for platform engineering across the org.

Requirements

• 5+ years in Platform, Infrastructure, or SRE roles, including running Kubernetes in production at scale.
• Deep knowledge of Kubernetes internals and day-2 operations (upgrades, scaling, troubleshooting).
• Strong with Helm, Kustomize, or similar, and GitOps-based delivery.
• Proficient with Linux systems and understanding of system-level operations.
• Proficient with infrastructure-as-code (Terraform, Pulumi, or equivalent).
• Solid grounding in networking, service meshes, and container runtimes.
• Hands-on with observability stacks (Prometheus, Grafana, OpenTelemetry).
• Strong coding skills in Go or Python for automation and tooling.
• Practical security experience: network policies, secrets management, and image scanning.

Nice to Have

• Experience with multi-cluster, multi-cloud, or hybrid environments.
• Knowledge of GPU scheduling, HPC workloads, or ML/AI infrastructure.
• Experience with workflow orchestration / durable execution frameworks (Temporal, Cadence, or Argo Workflows).
• Exposure to cost optimization and capacity planning for large clusters.
• Contributions to CNCF or Kubernetes open-source projects.
• CKA/CKS certification.

We Offer

• Competitive salary range: $230K - $340K
• 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

About the Company

Lambda, founded in 2012, is a leader in AI cloud infrastructure serving tens of thousands of customers. With 500+ employees and growing fast, our investors include TWG Global, US Innovative Technology Fund (USIT), Andra Capital, SGW, Andrej Karpathy, ARK Invest, Fincadia Advisors, G Squared, In-Q-Tel (IQT), KHK & Partners, NVIDIA, Pegatron, Supermicro, Wistron, Wiwynn, Gradient Ventures, Mercato Partners, SVB, 1517, and Crescent Cove.

We have research papers accepted at top machine learning and graphics conferences, including NeurIPS, ICCV, SIGGRAPH, and TOG. Our values are publicly available: Lambda Careers.

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.