October 12, 2026

Data Platform Developer

Mid • On-site

Wrocław, Poland

Quick Facts

  • Role: Data Platform Developer

  • Focus: Event-driven data platform in production environments

Description

You will design and develop an event-driven platform built around Apache Kafka (Kafka Connect, Kafka Streams, and kSQL), including backend and data integration capabilities. The work covers producer/consumer and stream processing development, schema definition and versioning, microservices, and a GraphQL API backed by MongoDB. You will also automate configuration (topics/connectors/streams), implement monitoring/observability, and troubleshoot/optimize Kafka operations.

Responsibilities

  • Design and develop event-driven solutions

  • Build Kafka-based solutions using Apache Kafka, Kafka Connect, Kafka Streams, and kSQL

  • Define and version data schemas

  • Develop microservices with Spring Boot

  • Implement Kafka producers, consumers, and stream processing

  • Build a GraphQL API providing data from MongoDB

  • Configure and develop Kafka Connect connectors

  • Create SMT (Single Message Transform) transformations and converters

  • Automate configuration of topics, connectors, and streams

  • Perform monitoring and observability

  • Diagnose and optimize Kafka performance

  • Document solutions and share knowledge

Requirements

  • Basic level knowledge of Apache Iceberg

  • Minimum 3 years of practical experience in production environments

Benefits

  • Work on modern event-driven data platform components and production-grade services

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