Senior DevOps Engineer

<h2><strong>About the role</strong></h2><p style="min-height:1.5em">0G is hiring its first dedicated DevOps engineer to own our cloud platform end to end: infrastructure, deployments, networking, security hygiene and cost. Today that work is spread across several developers.</p><p style="min-height:1.5em">Our platform runs on five providers: Google Cloud, Alibaba Cloud, AWS, Cloudflare and Vercel. It includes:</p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Validator, seed, RPC, and archive nodes for our mainnet and testnet</p></li><li><p style="min-height:1.5em">Confidential-computing (TEE) workloads, GPU machines and storage nodes</p></li><li><p style="min-height:1.5em">Kubernetes clusters and managed databases</p></li><li><p style="min-height:1.5em">A global RPC load balancer at the edge, and our web apps</p></li></ul><p style="min-height:1.5em">All together, that is more than 200 virtual machines. You will be the person who knows what runs where, why it runs there, and what it costs.</p><p style="min-height:1.5em"></p><h2><strong>What you'll own</strong></h2><p style="min-height:1.5em">You own the platform, from the network edge to the bill.</p><ul style="min-height:1.5em"><li><p style="min-height:1.5em"><strong>Cloud operations:</strong> provisioning, upgrades, capacity and the full resource lifecycle on Google Cloud, Alibaba Cloud and AWS. That includes rightsizing and releasing what nobody uses.</p></li><li><p style="min-height:1.5em"><strong>Kubernetes:</strong> run, upgrade and scale our clusters. Keep them on supported versions and design node pools, autoscaling and Spot capacity.</p></li><li><p style="min-height:1.5em"><strong>Blockchain node fleet:</strong> operate validator, sentry, seed, RPC and archive nodes, including peering topology, snapshots, sync and client upgrades.</p></li><li><p style="min-height:1.5em"><strong>Networking and edge:</strong> VPC design, load balancers, DNS, Cloudflare Workers, Tunnels and WAF, and keeping internet egress deliberate and cheap.</p></li><li><p style="min-height:1.5em"><strong>Infrastructure as code and CI/CD:</strong> every environment defined in Terraform or Pulumi. You design and run CI/CD on Jenkins or an equivalent such as GitHub Actions or GitLab CI, covering builds, tests, security scans and releases from commit to production, with no manual steps.</p></li><li><p style="min-height:1.5em"><strong>Observability and on-call:</strong> metrics, logs, alerts and dashboards, including control of metric cardinality. You also run incident response and write the postmortems.</p></li><li><p style="min-height:1.5em"><strong>Security and access:</strong> least-privilege IAM across every provider, secrets management, and no databases or admin ports open to the internet.</p></li><li><p style="min-height:1.5em"><strong>Cost management:</strong> billing exports, budgets and alerts, tagging, a monthly cost review and commitment planning.</p></li><li><p style="min-height:1.5em"><strong>Developer enablement:</strong> templates, preview environments, documentation and support for the engineers who ship on the platform.</p></li></ul><h2><strong>Our stack</strong></h2><p style="min-height:1.5em">&l