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.
Cognizant Digital Engineering If you’re like us, you’ve got big ideas. At Cognizant, we’re exploring new ideas every day. We help industry leading companies reinvent their business models and innovate products that create new value—by connecting people with things, insights, and experiences. Cognizant digital engineering designs, engineers and deliver digital products and experiences that drive digital-first business models. We offer the most comprehensive digital engineering expertise and client-centric methodology for sustainable innovation.
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.
Why Choose Cognizant?
It takes a lot to succeed in today’s fast-paced market, and Cognizant Technology Solutions has become a leader in the industry. We love big ideas and even bigger dreams! We stand out because we put human experiences at the core. Our associates enjoy robust benefits and training opportunities from our industry-recognized, award-winning Academy team. You will have access to hundreds of technical training courses to keep your skillsets fresh and have opportunities to acquire certifications on the newest technologies.
What we offer
- The chance to work with impact. Here, you’re empowered to bring your biggest thinking to help our company and clients improve everyday life.
- Ownership over your career. Stay at the top of your game through our award-winning learning and development ecosystem. And when your ambitions change or we offer new opportunities, we help you pivot by providing reskilling, on-the-job learning and guidance to find new roles that might be a better fit.
- The opportunity to thrive on a high caliber team with heart. We celebrate each other’s experiences and perspectives and promote a sense of belonging through our affinity groups and diversity and inclusion initiatives.
- A comprehensive total rewards package, including a competitive salary and a pension plan with matching contributions.
- Flexible health and financial benefits to support you and your eligible dependents—from day one.
- True work-life balance. Be at your best through paid time off, flexible work arrangements, volunteering opportunities, social events, and so much more.
About us
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, building the bridge between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, realize tangible returns and keep global enterprises ahead in a fast-changing world. See how at www.cognizant.com or @cognizant.
Other employment-related information
Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, provincial or local laws.
If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email [email protected] with your request and contact information.
Language requirements vary depending on roles, but we ask that all candidates have basic English proficiency for company-wide communications purposes. For roles based in Quebec, professional English proficiency is required, as you’ll deliver services to and collaborate with stakeholders outside the province who may not speak French.










