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Join to apply for the Senior Java Developer role at CGI Join to apply for the Senior Java Developer role at CGI Position Description We are Canada''s largest independent information technology services firm, and after 45+ years, we''re still growing! Join Canada''s largest IT Company as a Senior Java Developer, in our Financial Services Sector in Toronto. We are seeking a highly skilled and experienced Senior Java Developer to join our dynamic team. In this role, you will be responsible for designing, developing, and maintaining robust and scalable APIs using Java and Spring Boot. You will work on cutting-edge technologies and methodologies, including event sourcing, CQRS, and reactive microservices, to deliver high-quality solutions. Your future duties and responsibilities API Design & Development : Design, develop, and maintain RESTful APIs using Java and Spring Boot, ensuring high performance and responsiveness. Event Sourcing & CQRS : Implement event sourcing and Command Query Responsibility Segregation (CQRS) patterns to ensure scalable and resilient system architecture. Message-Oriented Middleware : Develop and integrate with message-oriented middleware systems, ensuring efficient and reliable communication between distributed services. Reactive Microservices : Design and implement reactive microservices architecture to handle asynchronous data streams and enhance system responsiveness. Message Brokers : Work with message brokers, particularly Kafka, to build and maintain scalable messaging systems. Asynchronous Programming : Utilize asynchronous programming techniques to optimize application performance and resource utilization. Collaboration : Work closely with cross-functional teams, including DevOps, QA, and other development teams, to ensure seamless integration and deployment of microservices. Required Qualifications To Be Successful In This Role Education : bachelors or masters degree in computer science, Engineering, or a related field. Experience : 5+ years of professional experience in Java development, with a strong focus on Spring Boot and API design. Must have Technical Skills : Proficiency in Java, with a deep understanding of Java SE and EE. Extensive experience with Spring Boot and related frameworks (Spring Data, Spring Security, etc.). Strong understanding of event sourcing and CQRS patterns. Hands-on experience with message-oriented middleware and message brokers (e.g., Kafka, RabbitMQ). Experience in designing and developing reactive microservices using frameworks like Spring Web Flux. Proficiency in asynchronous programming and non-blocking I / O operations. Familiarity with cloud platforms (e.g., AWS, Azure) and containerization technologies (e.g., Docker, Kubernetes). Soft Skills : Excellent problem-solving and analytical skills. Strong communication skills and ability to work in a collaborative environment. Self-motivated and able to work independently with minimal supervision. Preferred Qualifications : Experience with continuous integration / continuous deployment (CI / CD) pipelines. Familiarity with Open Telemetry and Prometheus for monitoring and observability. Experience with TDD / BDD and unit testing frameworks like JUnit, Mockito. Together, as owners, lets turn meaningful insights into action. Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, youll reach your full potential because... You are invited to be an owner from day 1 as we work together to bring our Dream to life. Thats why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our companys strategy and direction. Your work creates value. Youll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise. Youll shape your career by joining a company built to grow and last. Youll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons. At CGI, we recognize the richness that diversity brings. We strive to create a work culture where all belong and collaborate with clients in building more inclusive communities. As an equal-opportunity employer, we want to empower all our members to succeed and grow. If you require an accommodation at any point during the recruitment process, please let us know. We will be happy to assist. Come join our teamone of the largest IT and business consulting services firms in the world. Seniority level Seniority level Mid-Senior level Employment type Employment type Full-time Job function Job function Engineering and Information Technology IT Services and IT Consulting Referrals increase your chances of interviewing at CGI by 2x Get notified about new Senior Java Software Engineer jobs in Toronto, Ontario, Canada . Senior Software Engineer, Business Process & Automation Senior Software Engineer (Network Platform Team) Senior Software Engineer, Audio-Video Processing (Req ID : 2025-14) Lead Data Scientist - Feature Engineering Lead Data Scientist - Articial Intelligence Specialist Senior Software Engineer, Backend - Fintech Senior Software Developer, Backend Platform Were unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI. J-18808-Ljbffr Create a job alert for this search #J-18808-Ljbffr