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Mirantis is seeking a Senior DevOps Engineer to operate the PostgreSQL and Apache Kafka platform powering k0rdent-ai, a multi-tenant control plane for enterprise GPU infrastructure. This is a hands-on DevOps/SRE role focused on stateful systems reliability and automation.
You will deploy and operate PostgreSQL (CloudNativePG) and Kafka (Strimzi) on Kubernetes using operators, Helm, and GitOps across cloud and bare-metal clusters in a global control plane and multiple regions. Key responsibilities include:
• Deploy, upgrade, scale, and operate CloudNativePG and Strimzi clusters with Helm charts and operator custom resources across heterogeneous Kubernetes environments.
• Manage infrastructure declaratively using Argo CD or Flux, Helm, and Terraform; build CI/CD pipelines for database and Kafka changes, schema migrations, and operator upgrades.
• Design and operate high availability within regions and cross-region disaster recovery, including PostgreSQL replica clusters, backups with point-in-time recovery, and Kafka MirrorMaker 2, with defined RPO/RTO targets and regular failover drills.
• Provide product teams self-service provisioning of databases, users, topics, and ACLs through code with secure defaults and guardrails.
• Build monitoring and alerting (Prometheus, Grafana, OpenTelemetry) for replication lag, backups, consumer lag, and capacity; participate in on-call rotations and lead incident reviews.
• Implement TLS/mTLS, secrets management (Vault/OpenBao), network policies, Kafka ACLs, and per-tenant isolation; integrate database and Kafka access with identity platforms (Keycloak/OIDC).
• Operate outbox and change-data-capture pipelines (Debezium, Kafka Connect) ensuring consistency between global control plane and regional deployments.
• Write automation and small services in Go or Python to eliminate manual work; partner with application teams on schema standards and performance troubleshooting.
Mirantis is a Kubernetes-native AI infrastructure company enabling organizations to build and operate scalable, secure infrastructure for AI and machine learning workloads. The company combines open-source innovation with deep Kubernetes expertise to deliver production-ready developer platforms across any environment.
REQUIREMENTS:
Must Have:
• 8+ years in DevOps, SRE, platform, or infrastructure engineering, including 3+ years running stateful systems (databases or message streaming) in production.
• Strong hands-on Kubernetes operations: StatefulSets, persistent volumes and storage classes, pod disruption budgets, scheduling and affinity, network policies, and cluster upgrades on cloud and/or bare-metal clusters.
• Production experience running PostgreSQL and/or Kafka through Kubernetes operators (CloudNativePG, Zalando, Crunchy PGO, Strimzi, Confluent for Kubernetes, or similar); ability to author and maintain Helm charts. Depth with one operator is more valuable than breadth across multiple products.
• Day-to-day use of Argo CD or Flux, Terraform, and CI/CD pipelines (GitHub Actions, GitLab CI, or similar) in declarative, review-driven workflows.
• Practical PostgreSQL administration: replication and failover, backup and point-in-time recovery, connection pooling (PgBouncer), version upgrades, and performance troubleshooting.
• Production Kafka operations: brokers, topics and partitions, replication, consumer groups, monitoring, and capacity planning.
• Experience designing and testing high availability and disaster recovery for stateful systems with defined RPO/RTO.
• Strong scripting and programming in Go (preferred) or Python, plus Bash.
• Bachelor's degree in Computer Science or related field, or equivalent practical experience.
Nice to Have:
• Cross-region replication (CloudNativePG replica clusters, Kafka MirrorMaker 2) and global/regional multi-site architectures.
• Debezium, Kafka Connect, and transactional outbox/CDC patterns.
• Identity integration for data platforms (Keycloak, OIDC, LDAP/Active Directory).
• Observability stacks (Prometheus, Grafana, OpenTelemetry, VictoriaMetrics).
• Secrets and security tooling (Vault/OpenBao, cert-manager, mTLS).
• Bare-metal infrastructure, Ceph or object storage, or GPU/AI infrastructure experience.
• Open-source contributions to CloudNativePG, Strimzi, or related projects.
• SOC 2 or ISO 27001 compliance experience.
