Staff Software Engineer - Cloud Platform (Kafka)

Calix is a company focused on transforming Communication Service Providers through their cloud-first, AI-powered platform. They are seeking a skilled Staff Cloud Platform Engineer with expertise in Kafka to design, deploy, and optimize their event streaming infrastructure on Google Cloud Platform.

Responsibilities:

• Design, provision, and manage Apache Kafka clusters (self-managed on GCP/AWS or via Confluent Platform / MSK)
• Configure and tune brokers, ZooKeeper/KRaft, topics, partitions, replication factors, and retention policies for high throughput and low latency
• Perform cluster upgrades, rolling restarts, and broker replacements with zero downtime
• Implement and manage Kafka Connect pipelines for data ingestion and egress across heterogeneous systems
• Administer Kafka Streams and ksqlDB deployments for real-time stream processing workloads
• Maintain Schema Registry and enforce schema governance standards across teams
• Define and track SLIs/SLOs for consumer lag, throughput, end-to-end latency, and broker health
• Design and implement cloud infrastructure using IaC – Terraform
• Build automated deployment pipelines for Kafka configuration changes using GitOps workflows (ArgoCD, Flux)
• Create self-service tooling and runbooks to reduce toil for development teams
• Automate topic provisioning, ACL management, and schema registration via APIs and CLI tooling
• Integrate tools like GitLab CI/CD, or Cloud Build for automated testing and deployment
• Ensure seamless integration of data pipelines with other GCP services like Big Query, Cloud Storage
• Monitor and Optimize performance, reliability, and cost of Kafka and streaming pipelines
• Implement security best practices for GCP resources, including IAM policies, encryption, and network security
• Ensure Observability is an integral part of the infrastructure platforms and provides adequate visibility about their health, utilization, and cost
• Collaborate extensively with cross functional teams to understand their requirements; educate them through documentation/trainings and improve the adoption of the platforms/tools

Requirements:

• 10+ years of overall experience in DevOps cloud engineering, or data engineering
• 5+ years of experience in Kafka at production scale
• Deep expertise in Kafka internals: replication protocol, log compaction, consumer group coordination, partition leadership, and KRaft mode
• Proficiency with container orchestration (Kubernetes / Helm) and deploying Kafka via Strimzi, Confluent Operator, or equivalent
• Strong understanding of networking (VPC, peering, private endpoints, DNS, load balancing) in cloud environments
• Hands-on experience with Kafka Connect, Schema Registry, and at least one stream processing framework (Kafka Streams, Flink, Spark Structured Streaming)
• Proficiency in Google Cloud Platform (GCP) services, including Dataflow, Pub/Sub, Kafka, Dataproc, Big Query, and Cloud Storage
• Expertise in Infrastructure as Code (IaC) tools like Terraform or Cloud Deployment Manager
• Familiarity with data orchestration tools like Apache Airflow or Cloud Composer
• Experience with CI/CD tools like Jenkins, GitLab CI/CD, or Cloud Build
• Knowledge of containerization and orchestration tools like Docker and Kubernetes
• Strong scripting skills for automation (e.g., Bash, Python)
• Experience with monitoring tools like Cloud Monitoring, Prometheus, and Grafana
• Familiarity with logging tools like Cloud Logging or ELK Stack
• Strong problem-solving and analytical skills
• Excellent communication and collaboration abilities
• Ability to work in a fast-paced, agile environment