Senior Multi-Cloud SRE – Network & Security

Blockdaemon Inc.; United States; Remote; USD 180,000 - 271,000; Full time

Job summary

Blockdaemon Inc. is seeking a hands-on Site Reliability Engineer to own our cloud infrastructure, focusing on network security and automation.

You will harden multi-cloud environments (AWS, GCP, Azure) using Terraform, Ansible, and IaC practices, while managing the networking layer, egress control, and edge security. You’ll operate production GKE, implement GitOps with ArgoCD, and shape our zero-trust network (Tailscale).

Qualifications

• 5+ years in an SRE/infrastructure role with multi-cloud workloads.
• Proven SRE fundamentals: SLOs, toil measurement, blameless postmortems.
• Strong AWS, GCP, Azure networking knowledge (VPCs, firewalls, LB).
• IaC/config mgmt: Terraform and Ansible owned, not just contributed to.
• Solid network security background, egress control and proxy design.
• Hands-on production Kubernetes (GKE) with Helm and GitOps (ArgoCD).
• Experience with Cloudflare or edge/CDN/WAF platforms and APIs.
• Experience with Tailscale or similar zero-trust access solution.
• On-call experience, pager duty, postmortems, durable fixes.
• Strong Go/Python scripting to write tooling and runbooks.

Responsibilities

• Own design, reliability, and hardening of multi-cloud infra across AWS, GCP, Azure.
• Build and maintain IaC as source of truth for provisioning/configuration.
• Own network security architecture: egress, traffic segmentation, outbound control.
• Manage Cloudflare footprint and API gateway (Zuplo) configurations.
• Operate Tailscale zero-trust network across environments and apps.
• Run production GKE with cluster hardening, network policy, secure deployments.
• Build observability for network and infra health to catch misconfigurations early.
• Harden CI/CD and pipelines (GitHub/GitLab/ArgoCD) from infra/security perspective.
• Manage on-call rotation and incident response with durable fixes.
• Identify manual toil and automate it; bridge security and platform teams.

Skills

Kubernetes

Go

Python

Terraform

Ansible

Helm

GitOps

ArgoCD

Cloudflare

Tailscale

Network security

Tools

GKE

Zuplo

Terraform

Ansible

Job description

Blockdaemon Inc. is seeking a hands-on Site Reliability Engineer to own our cloud infrastructure, focusing on network security and automation.

You will harden multi-cloud environments (AWS, GCP, Azure) using Terraform, Ansible, and IaC practices, while managing the networking layer, egress control, and edge security. You’ll operate production GKE, implement GitOps with ArgoCD, and shape our zero-trust network (Tailscale).