Senior DevOps / Infrastructure Engineer
About The Position
Category Labs (formerly known as Monad Labs) is seeking a Senior DevOps / Infrastructure Engineer to operate the infrastructure behind Monad, a high-performance, EVM-compatible Layer 1 blockchain. This role involves keeping the globally-distributed validator, full node, and archive fleet healthy, owning infrastructure-as-code and observability, and building AI-driven tooling for operations. The engineer will play a central role in designing workflows and guardrails for autonomous AI agents operating infrastructure, and will also manage the infrastructure for the company's model workloads. The company has recently raised $225M in series A funding and its public mainnet is now live.
Requirements
- 5+ years in DevOps, SRE, or Infrastructure Engineering, operating production systems at scale.
- Strong Linux, systemd, networking, and shell fundamentals, and comfort debugging live systems over SSH.
- Deep, hands-on infrastructure-as-code experience with Ansible and Terraform.
- Experience with observability stacks (Prometheus, Grafana, Loki, or equivalents).
- Hands-on fluency with AI-assisted engineering: using coding agents and LLM tooling in daily workflow and understanding where it helps and where it's risky.
- Experience designing automation with safe guardrails, and calm, methodical incident response.
- Programming and scripting experience (e.g., Python, bash).
Nice To Haves
- Experience with Kubernetes and GitOps (Flux or Argo).
- Experience building AI agent tooling, MCP servers, or agent orchestration frameworks.
- Experience serving inference, either locally or as a service.
- Previous experience with blockchain clients or node operations.
- A Bachelor of Science in Computer Science, Engineering, or a related field.
Responsibilities
- Operate the Monad node fleet: health, sync, upgrades, and recovery across validators, full nodes, archive/historical, and indexer nodes on mainnet and testnet, including safe, staged rollouts and incident response.
- Own infrastructure-as-code: Ansible for fleet configuration, Terraform + Atlantis for cloud and DNS, and Kubernetes/Flux (GitOps) for platform services.
- Build and operate observability and alerting (Prometheus, Grafana, Loki); create dashboards and alerts that catch problems before they page while minimizing false positives.
- Automate the release pipeline: node upgrades, canary rollouts, snapshot/restore, and the guardrails that bound blast radius (e.g., protecting validators from automated changes).
- Design and build agentic operations: develop AI agents, tooling (e.g., MCP servers), and runbooks-as-code that let agents safely investigate, diagnose, and execute routine operations, with deterministic guardrails and human oversight.
- Codify operational knowledge into tools and automation that the whole team, and its agents, can reuse.
- Harden nodes and services, manage secrets, and continuously drive down manual toil.
Benefits
- Competitive salary and equity package.
- Private health insurance options
- Flexible paid time off
- Monthly wellness reimbursement
- Paid parental leave
- World-class benefits package with 100% paid medical, dental, and vision insurance including 75% coverage for dependents and HSA + FSA options (US employees)
- 401(k) with company match (US employees)
- Lunch and dinner stipend (in-office NYC)
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
Associate degree
