Melbourne, Australia | Posted on 09/08/2026
Must Have:
Develop custom integration code using Java / Spring Boot for source system connectivity where managed connectors are not applicable.
Build and maintain Kafka producers/consumers, topic integration logic, and event-driven services on Confluent Cloud / NGIP.
Develop and maintain Flink SQL / stream processing logic for transformation, enrichment, validation, routing, and de-duplication.
Implement integration with Schema Registry, topic schemas, and message validation controls.
Support HTTP/API-based integrations through Kong Gateway for NGIP to target application communication.
Positive-to-Have:
Confluent Certified Developer/Administrator
Experience with stream governance, RBAC, and tiered storage
Background in data engineering, ETL, or microservices architecture
Familiarity with traditional messaging systems and data warehouses
Experience in Agile methodologies and DevOps practices
Configure and support HTTP Sink delivery patterns, payload mapping, retries, and failure handling.
Responsibility:
Develop custom integration code using Java / Spring Boot for source system connectivity where managed connectors are not applicable




Build and maintain Kafka producers/consumers, topic integration logic, and event-driven services on Confluent Cloud / NGIP .
Develop and maintain Flink SQL / stream processing logic for transformation, enrichment, validation, routing, and de-duplication.
Implement integration with Schema Registry, topic schemas, and message validation controls.
.
Support HTTP/API-based integrations through Kong Gateway for NGIP to target application communication
Configure and support HTTP Sink delivery patterns, payload mapping, retries, and failure handling
Perform unit / component testing for custom code, Flink jobs, and interface logic.
Support SIT, pipeline testing, defect fixing, replay, and root-cause analysis during test execution
Support E2E testing with downstream teams and resolve integration issues across connectors, transformations, APIs, and Kafka topics
Work with GitLab CI/CD pipelines for build, deployment, regression automation, and release support
Duration: 12 Months,
with possible extension
Eligibility:
Australian/NZCitizens/PR Holders only
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📌 Kafka Senior Developer - Contract - Melbourne
🏢 Hastha Solutions
📍 Melbourne