9 hours ago
Toronto, CanadaSenior
Responsibilities
- Design scalable event-driven backend services using Kafka and Core Java for high-volume transaction processing.
- Develop Spring Boot microservices supporting reusable payment and card-processing capabilities.
- Implement Kafka producers and consumers with appropriate delivery semantics for critical financial events.
- Profile and optimize Java code, threads, memory usage, and response times.
- Create modular, testable service components and develop automated unit and integration tests.
- Integrate upstream and downstream systems through secure APIs and messaging while maintaining data consistency and observability.
- Apply secure coding practices and compliance guidelines to protect customer and transaction data.
- Translate cards and payments requirements into technical solutions with product owners and business partners.
- Troubleshoot production incidents using logs, metrics, and traces, and implement durable fixes.
- Participate in code reviews, document technical designs and operational runbooks, and mentor peers on Kafka, Spring Boot, and resilient design practices.
Requirements
- At least 8 years of experience developing and building high-performing, scalable enterprise applications.
- Strong hands-on expertise in Core Java, including collections, concurrency, and functional constructs.
- Advanced proficiency in Spring Boot, including dependency injection, data access, configuration management, and production-ready features.
- Practical experience designing and operating Kafka solutions involving topics, partitions, consumer groups, and message serialization.
- Experience developing secure and scalable APIs for internal systems or partner platforms in a financial services context.
- Familiarity with cards and payments concepts such as authorization, clearing, settlement, and dispute handling is desirable.
- Understanding of version control, continuous integration, code review, and automated testing practices.
- Ability to work effectively in hybrid environments with distributed teams.
Benefits
- Hybrid work arrangement in Toronto, Ontario, Canada.
- Base salary range of $84,183–$135,500 per year, plus eligibility for a discretionary annual performance-based bonus.
- Benefits supporting physical, mental, and financial wellbeing.
- Access to technical training courses through the Cognizant Academy and opportunities to earn certifications.
Tech Stack
Categories
About Cognizant
Cognizant is a public IT services and consulting firm that designs, builds, and runs enterprise technology, including digital engineering, cloud modernization, data/AI, and managed services. It sells consulting, systems integration, and outsourcing on multi-year engagements to large enterprises in healthcare, banking, retail, communications, and manufacturing. Founded in 1994 and headquartered in Teaneck, New Jersey, Cognizant is NASDAQ-listed (CTSH) and a Fortune 500 company.