# Software Engineer - Infrastructure \(Mid - Senior\) - Company: [Julius]() - Location: San Francisco, CA - Team: Engineering - Employment type: Full Time - Salary: $150K – $200K - Posted: May 21, 2026 ## Job description **Compensation:** Competitive base salary and meaningful equity **Benefits:** Health & dental insurance, gym reimbursement, daily team meals, commuter benefits We’re an applied AI lab building coding agents. Julius executes **~1M lines of code every 36 hours** for **1M+ users** and has generated **3M+** visualizations. All code runs in code sandboxes (**isolated remote containers**) that we manage. We’re revenue‑generating and backed by AI Grant, YCombinator, Bessemer Venture Partners and the founders from Vercel, Notion, Perplexity, Palantir, Replit, Zapier, Intercom, and Dropbox. **The Role** Build and scale the **code‑execution sandboxes** that power Julius across cloud environments (AWS and GCP). We orchestrate **500k+ containers/month** and growing. You’ll own reliability, performance, and security for multi‑tenant compute. **What You’ll Do** * Design and operate secure, multi‑tenant **container infrastructure** with fast startup and smart autoscaling. * Ship cloud deployments (Helm/Terraform) with SSO, network controls, and audit logging. * Drive observability (metrics, traces, logs) with clear SLOs; lead incident response. * Optimize images, scheduling, networking, and cost ; build fair‑use and rate‑limiting controls. **What You Bring** * Production Kubernetes and container internals (Docker/containerd); strong **networking** fundamentals. * Cloud (AWS/GCP/Azure) and IaC (Terraform/Helm). * Monitoring/Logging (Prometheus, Grafana, OpenTelemetry, ELK/Vector). * **Security** best practices for containerized, multi‑tenant systems. **Nice to Have** * gVisor/Kata/Firecracker; Cilium/eBPF; GPU scheduling; serverless autoscaling (KEDA/Knative/Karpenter). * You’ve built an AI side project and enjoy tinkering with LLMs. **Why Julius** Small, senior team; massive impact surface; hard infra problems at meaningful scale. ## Apply [Apply on Julius]() Canonical job page: