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Lead Java Developer

Cognizant

toronto, on, Canada Full-time May 30, 2026

Opportunity Description

Lead Java Developer

Job Summary

We are seeking a highly skilled Lead Java Developer with deep hands‑on experience building scalable backend applications and event‑driven systems. The ideal candidate will bring strong expertise in Java, Spring Boot, Kafka, and microservices , along with a proactive mindset and the ability to collaborate effectively across engineering teams.

Responsibilities

  • Design, develop, and maintain high-performance, scalable backend applications using Java and Spring Framework (Spring Boot, Spring Security)
  • Work extensively on Kafka‑based streaming and messaging systems
  • Write clean, efficient, and reusable code following best practices
  • Develop and maintain automated test cases (unit, integration, and end‑to‑end)
  • Monitor application performance and troubleshoot issues using tools like Dynatrace
  • Create and maintain technic...
Full-time Other-General

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