Java Developer - Assistant Vice President

Citi; Mississauga; Hybrid; CAD 94,000 - 142,000; Full time

Benefits offered by this job

Hybrid work model

Learning & development opportunities

Collaboration with global teams

Wellbeing resources

Competitive compensation

Job summary

Citi in Mississauga, Canada seeks a Senior Java Backend Developer to design and build high-performance backend services for large-scale data processing. You will apply Java 17, Spring Boot, and microservices patterns to deliver scalable architectures while collaborating with cross-functional teams.

The role emphasizes test-driven development, code quality with SonarQube, and efficient data joins in complex pipelines. A Bachelor’s degree and strong communication are required.

Qualifications

• 5+ years of hands-on Java backend development with Java 17+.
• Strong Spring Framework experience (Boot/Data/Cloud).
• SQL/NoSQL databases; optimize queries and data models.
• In-memory data loading and efficient joins for large pipelines.
• Java tooling: Maven/Gradle; testing with JUnit/Mockito.
• Architectural skills in microservices and event-driven designs; TDD and SonarQube.

Responsibilities

• Design and build high-performance Java backend services for data processing.
• Develop scalable data processing architectures using modern patterns.
• Collaborate with cross-functional teams to deliver features.
• Maintain performance and resolve bottlenecks in backend apps.
• Practice test-driven development to improve testability and modularity.
• Apply static code analysis with SonarQube to ensure quality.
• Optimize SQL queries and manage complex data pipelines.
• Leverage AI-assisted tools to accelerate delivery and quality.

Skills

Java backend

Java 17+

Spring Boot

SQL/NoSQL databases

Maven/Gradle

JUnit/Mockito

Microservices

Event-driven

Communication skills

Education

Bachelor's degree

Tools

SonarQube

Job description

As a Senior Java Backend Developer, you will design and build high-performance backend services that power large-scale data processing applications at Citi. You'll apply modern Java and Spring expertise, alongside AI-assisted development tools and prompt engineering, to accelerate delivery and strengthen code quality across the development lifecycle. This role gives you ownership of scalable architecture for complex data pipelines while collaborating with cross-functional teams on business-critical systems.

Responsibilities

• Design and develop high-performance backend services for data processing applications using Java 17 and Spring Boot.
• Build scalable data processing architectures using modern design patterns to handle intensive calculations and business logic.
• Collaborate with cross-functional teams to define, design, and ship new product features.
• Maintain optimal performance and responsiveness of backend applications while resolving bugs and system bottlenecks.
• Practice test-driven development to strengthen testability, modularity, and test coverage.
• Apply static code analysis tools such as SonarQube to uphold code quality and maintainability.
• Optimize SQL queries and manage complex data pipelines through efficient data joins.
• Apply AI-assisted development tools and prompt engineering techniques to accelerate delivery and improve code quality.

Required Qualifications & Skills

• 5+ years of hands-on experience developing Java backend applications using Java 17 or later.
• Strong proficiency in the Spring Framework, including Spring Boot, Spring Data, and Spring Cloud.
• Excellent knowledge of SQL and relational or NoSQL databases, with experience optimizing queries and data models.
• Solid understanding of in-memory data loading techniques and efficient data joining strategies for large data pipelines.
• In-depth knowledge of Java tooling, including build tools such as Maven or Gradle and testing frameworks such as JUnit and Mockito.
• Experience applying design patterns and architectural principles such as microservices and event-driven architecture, supported by test-driven development and static code analysis tools such as SonarQube.
• Bachelor's degree or equivalent practical experience, along with strong communication skills to explain technical concepts to varied audiences.

Beneficial Skills & Qualifications

• Experience with cloud platforms such as AWS, Azure, or GCP.
• Familiarity with containerization and orchestration tools such as Docker and Kubernetes or OpenShift.
• Knowledge of distributed data processing frameworks such as Apache Spark or Apache Flink.
• Master's degree in a related field.

What We Offer

Citi offers a collaborative, performance-driven environment where engineers solve complex data challenges at global scale, supported by resources that help you grow your career and wellbeing.

• Work in a hybrid model with 3 days in the office and 2 days working remotely.
• Access ongoing learning and development opportunities to strengthen your technical expertise.
• Collaborate with global engineering teams on large-scale, business-critical systems.
• Benefit from wellbeing support and resources that promote work-life balance.
• Build long-term financial wellbeing through competitive compensation and benefits.

Full time

$94,300.00 - $141,500.00

Please see the requirements listed above.

For complementary skills, please see above and/or contact the recruiter.

We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.

Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.

This job opening is for an existing job vacancy.

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