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 documentation using Confluence
Participate in system design discussions and contribute to architectural decisions
Collaborate with cross-functional teams such as QA, DevOps, and Product
Ensure code quality through reviews and adherence to coding standards
Take a proactive approach in identifying risks, improvements, and optimizations Required Qualifications / Must-Have Skills
10+ years of experience in Java development with strong proficiency in Java 8/11/17+
Hands-on experience with Spring Framework , including Spring Boot and Spring MVC
Minimum 6+ years of experience with Apache Kafka in event-driven architectures
Strong understanding of microservices architecture , REST APIs , and distributed systems
Experience developing and maintaining automated test cases including unit, integration, and end-to-end testing
Familiarity with application monitoring and troubleshooting tools such as Dynatrace
Experience creating technical documentation and knowledge-sharing content using Confluence
Strong collaboration, code review, and problem-solving skills in cross-functional engineering environments

Location: Toronto, Canada
-- We're excited to meet people who share our mission and can make an impact in a variety of ways. Don't hesitate to apply, even if you only meet the minimum requirements listed. Think about your transferable experiences and unique skills that make you stand out as someone who can bring new and exciting things to this role.

Salary and Other Compensation:
The annual salary for this position is between $84K – $130 K depending on experience and other qualifications of the successful candidate.
This position is also eligible for Cognizant’s discretionary annual incentive program, based on performance and subject to the terms of Cognizant’s applicable plans.