Senior Java Dev (Java, Kafka)
Cognizant’s Digital Engineering practice is seeking a highly qualified Senior Java Dev (Java, Kafka) with min 8+ years’ experience developing and building high-performing, scalable, enterprise applications. As a Sr. Software Engineer B2, you will play a pivotal role in designing, developing, and maintaining high-quality software solutions. You will leverage your expertise in Kafka, Database and SQL, Hibernate, Spring Boot, Spring Framework, Java MQ, Rest API, and Java to drive innovation and efficiency. This role offers the opportunity to work in a dynamic environment, contributing to impactful projects that align with the company’s vision.
Location: Toronto, ON, CANADA (Hybrid)
You must be legally authorized to work in Canada without the need for employer sponsorship, now or at any time in the future.
Responsibilities
- Design scalable event driven backend services using Kafka and Core Java to support high volume transaction processing in a secure and efficient manner
- Develop robust Spring Boot microservices that enable reusable payment and card processing capabilities aligned with enterprise architecture standards
- Implement reliable Kafka producers and consumers that ensure exactly once or appropriate delivery semantics for critical financial events
- Optimize application performance by profiling Java code tuning threads and memory and improving response times for latency sensitive operations
- Create modular and testable service components that promote clean separation of concerns and ease of maintenance across the codebase
- Collaborate with product owners and business partners to translate complex cards and payments requirements into clear technical solutions
- Integrate services with upstream and downstream systems using secure APIs and messaging while maintaining data consistency and observability
- Apply secure coding practices and relevant compliance guidelines to protect customer information and transaction data throughout the solution lifecycle
- Develop automated unit and integration tests that increase coverage and ensure regression free deployments for critical payment workflows
- Troubleshoot production incidents by analyzing logs metrics and traces and implement durable fixes that improve platform stability and customer trust
- Contribute to code reviews by providing constructive feedback that improves code quality maintainability and alignment to engineering standards
- Document technical designs service contracts and operational runbooks that support smooth onboarding support activities and future enhancements
- Mentor peers through knowledge sharing sessions on Kafka patterns Spring Boot best practices and resilient design techniques that uplift team capability
Qualifications
- Possess strong hands on expertise in Core Java including collections concurrency and functional constructs used to build enterprise grade services
- Demonstrate advanced proficiency in Spring Boot including dependency injection data access configuration management and production ready features
- Exhibit practical experience designing and operating Kafka based solutions with topics partitions consumer groups and message serialization patterns
- Bring experience in developing secure and scalable APIs that integrate with internal systems or partner platforms in a financial services context
- Show familiarity with cards and payments domain concepts such as authorization clearing settlement and dispute handling as a desirable advantage
- Apply solid understanding of software engineering practices including version control continuous integration code review and automated testing
- Display experience working in hybrid work environments with distributed teams using collaboration tools and clear communication to ensure alignment
Canadian Pay Transparency Statement
We regularly assess market data to ensure we offer a competitive compensation package for our associates. The base salary for this position ranges between $84,183 – 135,500 per year. Where the successful candidate may fall within the range depends on relevant education, work and/or management experience and other business-related and job-necessary qualifications. This position is also eligible for Cognizant’s discretionary annual performance-based bonus, as well as benefits that support your physical, mental and financial wellbeing.
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