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Julius

Senior Software Engineer - Infrastructure

Julius, San Francisco, California, United States, 94199

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Compensation:

Competitive base salary + meaningful equity Benefits:

Health & dental, gym reimbursement, daily team lunches, 401(K)

About Julius 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

isolated remote containers

that we manage. We’re revenue‑generating and backed by AI Grant and founders from Vercel, Notion, Perplexity, Palantir, Replit, Zapier, Intercom, and Dropbox.

The Role Build and scale the

code‑execution platform

that powers Julius—across

cloud and on‑prem

environments. 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

on‑prem/private 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).

Delivered

on‑prem or air‑gapped

enterprise software.

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.

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