Senior DevOps / Platform Engineer

Job Title: Senior DevOps / Platform Engineer Location: Austin, TXDuration: 6-12 Months Contract.ONLY US Citizens.Role OverviewWe are seeking a hands-on Senior DevOps/Platform Engineer to own the full delivery lifecycle of a multi-tenant AI SaaS platform across AWS, Azure, and GCP. This role spans both day-to-day operational responsibilities and strategic architectural contribution.Infrastructure & Cloud• Manage Terragrunt-wrapped Terraform IaC for multi-customer cloud account provisioning• Provision and maintain cloud resources including EKS, AKS, RDS, Redis, ACR/ECR, KMS/Key Vault, and workload identity across cloud providers• Onboard new clusters end-to-end from bootstrap scripts through ArgoCD app-of-apps patternsKubernetes & GitOps• Maintain GitOps-driven Kubernetes workload delivery via ArgoCD and Helmfile• Author and promote Helm chart overlays across multiple environments• Debug and remediate containerized workloads (Temporal, Authentik, kgateway, observability stacks) across cloud providersCI/CD & Automation• Build and maintain reusable GitHub Actions CI/CD workflows for Docker image builds, Terraform plan/apply gates, and cross-repo deploys• Troubleshoot and remediate issues across a highly variable, multi-layer technology stackArchitecture & Engineering• Contribute to product feature enhancements through design and implementation of architectural improvements• Ensure all architectural changes satisfy requirements for resiliency, security, and compatibility across multiple cloud providersRequired Skills• Production-level Terraform and Terragrunt in multi-account/multi-cloud environments• Kubernetes (EKS and AKS) — multi-cluster management, networking, workload troubleshooting• ArgoCD, Helmfile, GitOps delivery patterns• GitHub Actions CI/CD pipeline authoring• AWS, Azure, and GCP — simultaneous multi-cloud experience required• Familiarity with identity and secrets management (workload identity, KMS, Key Vault)• Experience with observability tooling and modern SaaS platform operations