Sr. Java Developer (Toronto)

About the role As a Senior Java Developer , you will make an impact by designing and delivering resilient, scalable microservices that power secure cards and payments solutions. You will be a valued member of the engineering team and work collaboratively with product owners, architects, and cross‑functional teams to drive high‑quality technology outcomes aligned with enterprise standards. In this role, you will: Design and build microservices using Spring Boot and Spring Framework to ensure scalability and reliability Develop event‑driven solutions using Kafka for real‑time data streaming and system integration Write high‑quality Java code with strong JUnit5 test coverage to ensure stability and maintainability Develop and optimize SQL queries to support high‑volume transactional systems Collaborate with stakeholders to translate business requirements into effective technical solutions Work model We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a hybrid position requiring 2–3 days per week in a Cognizant or client office in Toronto, Ontario . Regardless of your working arrangement, we are here to support a healthy work‑life balance through our various wellbeing programs. The working arrangements for this role are accurate as of the date of posting. This may change based on the project you’re engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations. What you need to have to be considered 9+ years of solid experience with Java Strong experience with Java, specifically microservices, Spring Boot and core Spring components Hands‑on experience with Kafka , including topic design and consumer patterns Advanced SQL skills , including query optimization and performance tuning Experience with JUnit5 testing frameworks , including unit and integration testing Strong understanding of microservices architecture , including scalability and resiliency Experience with secure coding practices and code reviews Strong troubleshooting skills for complex production issues Excellent communication skills and ability to work in a hybrid team setting These will help you stand out Experience in cards and payments domain (authorization, settlement, reconciliation) Familiarity with the Spring ecosystem, including security and data access modules Experience with CI/CD pipelines and automated deployments Strong performance optimization experience across applications and databases Mentoring or leadership experience within engineering teams Salary and Other Compensation Applications will be accepted until June 12th, 2026 . The annual salary for this position is between $120,000 - $160,000 , 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. This job posting is for an existing vacancy within the organization. #J-18808-Ljbffr Apply on Kit Job: kitjob.ca/job/2pq0h8