[Hiring] Senior DevOps Engineer @CommIT

Role Description

We're looking for a Senior DevOps Engineer to own the company AWS infrastructure and Kubernetes platform, with deep expertise in our data layer: Couchbase and Confluent (Kafka). You'll run these systems in production, keep them fast and reliable as data volumes grow, and work closely with our Python backend, data and AI teams.

• Design, build and operate AWS infrastructure (EKS/ECS, Lambda, S3, RDS, VPC, IAM).
• Own Couchbase in production: cluster architecture and sizing, buckets and indexes (GSI), XDCR replication, backup/restore, upgrades, and performance tuning.
• Own the Confluent / Kafka platform: Confluent Platform or Confluent Cloud, topic and partition design, Schema Registry, Kafka Connect connectors, consumer lag, throughput tuning and upgrades.
• Run stateful workloads on production Kubernetes, including Couchbase and Kafka operators, Helm, cluster scaling and upgrades.
• Manage all infrastructure as code with Terraform.
• Build and maintain CI/CD pipelines for application and data services.
• Own monitoring, logging and alerting across the platform, including Couchbase and Kafka health; lead incident response and post-mortems.
• Support data and AI/LLM workloads and keep cloud costs in check.

Qualifications

• 5+ years in DevOps / SRE / platform engineering, with 3+ years running AWS and Kubernetes in production.
• Expert-level Couchbase: hands-on production administration of Couchbase Server clusters (architecture, XDCR, indexing, backup/restore, upgrades, performance tuning).
• Expert-level Confluent / Apache Kafka: hands-on production operation of Confluent Platform or Confluent Cloud (brokers, Schema Registry, Kafka Connect, partitioning, consumer lag, scaling).
• Kubernetes in production, including running stateful workloads with operators.
• AWS: EKS, ECS, Lambda, S3, RDS, VPC.
• Terraform / infrastructure as code.
• CI/CD pipeline design and ownership.
• Observability and incident response (Prometheus, Grafana, ELK / CloudWatch).
• Docker / containerization.
• Scripting in Python and Bash.
• Strong Linux and networking fundamentals.
• Based in Poland; fluent English.

Requirements

• Certifications: Confluent Certified Administrator for Apache Kafka, Couchbase certification, CKA.
• Couchbase Capella or Confluent Cloud managed-service experience.
• Couchbase Autonomous Operator or Confluent for Kubernetes / Strimzi.
• ksqlDB / Kafka Streams; CDC pipelines (e.g. Debezium).
• ArgoCD / GitOps.
• Infrastructure for ML/LLM workloads.
• FinOps / cloud cost optimization.