Senior Backend Engineer (Java/Kotlin, Streaming)

TL;DR

Senior Backend Engineer (Java/Kotlin, Streaming): Building and optimizing a production-grade real-time streaming platform for data-driven decisions with an accent on unifying forecasting workflows and integrating with operational systems. Focus on ensuring reliability, extending functionality, and supporting continuous evolution of operational platforms with event-driven architecture and stream processing.

Location: Onsite in Wroclaw, Poland

Company

hirify.global is a leading meal-kit delivery company building a real-time streaming platform for data-driven decisions.

What you will do

• Develop backend services using Kotlin/Java and event-driven architecture principles.
• Maintain and enhance existing real-time streaming pipelines, including stateful processing and event ordering logic.
• Build and extend stream-processing components using Kafka and stream-processing frameworks (e.g., Apache Flink).
• Collaborate with platform, data, and product teams to integrate streaming applications with inventory and operational systems.
• Contribute to system reliability, monitoring, and operational excellence in production environments.
• Implement new features and improvements based on evolving business and operational requirements.

Requirements

• Strong backend development experience (5+ years) with Kotlin/Java (JVM ecosystem).
• Hands-on experience with real-time stream processing and event-driven architecture.
• Experience working with Kafka and building or maintaining streaming pipelines.
• Solid understanding of stateful processing, event ordering, and production distributed systems.
• Experience working with cloud environments (e.g., AWS) and containerized applications.
• Strong software engineering practices, including testing, code reviews, and CI/CD workflows.

Culture & Benefits

• Paid Vacation and Sick Days.
• Sport/Insurance and Training Compensation.
• English Classes.
• Charity opportunities.