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Lead Java Developer

Company: Cognizant

Location: toronto, London

Posted: June 05, 2026

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Position Details

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 technical documenta...