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Senior IT Java Developer

United States Digital Space LLC

toronto, on, Canada Full-time June 16, 2026
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Vacancy Description

Job Summary

We are seeking a Senior Java Developer / Architect to design, build, and operate scalable, event-driven, cloud-native applications using Apache Kafka, Spring Boot, and Microsoft Azure. The ideal candidate combines strong hands‑on engineering with architectural ownership of distributed systems, messaging patterns, and data‑intensive services.

Key Responsibilities

Architecture & Design

  • Design event‑driven architectures using Kafka with ownership of event contracts, versioning, and schema evolution
  • Define service interaction patterns (REST vs Kafka, sync vs async)
  • Lead architecture and design reviews focused on scalability, resiliency, and security
  • Own non‑functional requirements including latency, throughput, scalability, and capacity planning

Kafka & Messaging

  • Design topic, partition, replication, retention, and consumer group strategies
  • Implement produce...

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