Remote Senior Kafka Developer (Java, Streams)

INFOZEN INC; Polska; Hybrid; PLN 544,000 - 816,000; Full time

Job summary

INFOZEN INC is seeking a Senior Kafka Developer to design, develop, test, deploy, and support secure, scalable event-driven applications on an enterprise Apache Kafka platform across on-premises Linux (RHEL 9) and cloud environments.

The role requires 10+ years in software development, including 5+ years hands-on experience with Kafka; you will build producers, consumers, Kafka Streams apps, and integrations with Kafka Connect, Avro/Protobuf schemas, and strong security and CI/CD practices.

Qualifications

• 10+ years of enterprise software development experience.
• 5+ years hands-on Apache Kafka development.
• Strong experience with Java, Spring Boot, REST APIs, microservices, and event-driven architecture.
• Deep understanding of Kafka producers, consumers, partitions, offsets, and delivery guarantees.

Responsibilities

• Develop Java, Spring Boot, and Spring for Apache Kafka producers and consumers, microservices, and Kafka Connect integrations.
• Design topics, partitions, message keys, consumer groups, offsets, retries, and idempotency.

Skills

Java

Spring Boot

Spring Kafka

REST APIs

Microservices

Event-driven

Tools

Kafka Streams

Kafka Connect

Schema Registry

Avro

Protobuf

Job description

INFOZEN INC is seeking a Senior Kafka Developer to design, develop, test, deploy, and support secure, scalable event-driven applications on an enterprise Apache Kafka platform across on-premises Linux (RHEL 9) and cloud environments.

The role requires 10+ years in software development, including 5+ years hands-on experience with Kafka; you will build producers, consumers, Kafka Streams apps, and integrations with Kafka Connect, Avro/Protobuf schemas, and strong security and CI/CD practices.