Julius
Software Engineer - Infrastructure (Mid - Senior)
1mo ago
150000 –200000 USD / yearUSASeniorkubernetesdockerterraformhelmawsgcpprometheusgrafana
Build and scale secure, multi-tenant container infrastructure for a cloud-based AI coding platform.
Responsibilities
- 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.
Requirements
- 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.
Other
- 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.
- 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.
- Small, senior team; massive impact surface; hard infra problems at meaningful scale.