Senior Java developer

CGI; Toronto; On-site; CAD 90,000 - 120,000; Full time

Job summary

A leading IT services company in Toronto is seeking a Senior Java Developer. This role involves designing and maintaining robust APIs with Java and Spring Boot in a hybrid work environment. The ideal candidate should have over 5 years of experience in Java development, focusing on event sourcing and reactive microservices. Join a dynamic team that values ownership and innovation while fostering a diverse workplace.

Benefits

Diverse workplace

Professional development opportunities

Health and well-being support

Qualifications

• 5+ years of experience in Java development focused on Spring Boot and API design.
• Proficiency in Java SE and EE with a deep understanding of framework concepts.
• Experience with message-oriented middleware like Kafka.

Responsibilities

• Design, develop, and maintain RESTful APIs using Java and Spring Boot.
• Implement event sourcing and CQRS patterns for system architecture.
• Work with message brokers to build scalable messaging systems.

Skills

Java

Spring Boot

Event Sourcing

CQRS

Asynchronous Programming

Kafka

Problem-Solving

Education

Bachelor’s or Master’s degree in Computer Science or related field

Tools

Docker

Kubernetes

AWS

Azure

Job description

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.

Location - Downtown Toronto (Hybrid - 4 days office and 1 day remote)

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: bachelor’s or master’s 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, let’s turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll 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. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll 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.

You’ll shape your career by joining a company built to grow and last. You’ll 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 value the strength that diversity brings and are committed to fostering a workplace where everyone belongs. We collaborate with our clients to build more inclusive communities and empower all CGI partners to thrive. As an equal-opportunity employer, being able to perform your best during the recruitment process is important to us. If you require an accommodation, please inform your recruiter.

To learn more about accessibility at CGI, contact us via email. Please note that this email is strictly for accessibility requests and cannot be used for application status inquiries.

Come join our team—one of the largest IT and business consulting services firms in the world.