Senior Java Full Stack Lead - React & Microservices

Senior Java Full Stack Developer - React and Microservices - Assistant Vice President

Apply (opens in new window)

Job Req :

Location(s):

Mississauga, Ontario, Canada

Job Type:

Hybrid

Posted:

Apr. 23, 2026

Discover your future at Citi

Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.

Job Description Overview:

We are seeking a highly skilled and experienced Development Senior Programmer Analyst (C12) to join our dynamic team with, with a proven track record of successfully leading and delivering complex technology projects.

The successful candidate will be instrumental in designing, developing, and maintaining robust, scalable, and secure applications. This role requires a strong understanding of Workflow, BPMN, Case management and UI development practices, contributing significantly to our core platforms and services.

Key Responsibilities:

• Design and development of complex systems using React, Spring, Spring Boot and Spring Cloud, Workflow technologies.
• Implement microservices-based solutions with focus on scalability, reliability and performance.
• Contribute to the architectural design, implementation, and evolution of workflow and rules solutions. Collaborate with cross-functional teams, including product owners, architects, and other engineers, to define, design, and ship new features.
• Build scalable, distributed, highly available systems.
• Collaborate with cross-functional teams to define, design and deliver new features.
• Implement data access layers using Hibernate and JPA and manage caching using Redis or other caching frameworks.
• Ensure high quality through effective code reviews, static code analysis and performance optimization.
• Perform mandated code reviews, and contribute to a culture of continuous improvement.
• Integrate systems with workflow engine.

Required Tech

Qualifications:

• 5+ years of software development experience with strong focus on Java and workflow technology.
• Developer with strong programming skills using React, Springboot, Java, Type Script, Apache Camel, Kafka, Open Shift, API Gateway
• Experience in building scalable, distributed, highly available systems.
• Solid understanding and hands-on experience with Microservices Architecture and best practices.
• Proficient in Hibernate, JPA and working with both relational (Oracle) and No
  
  SQL (Mongo
  
  DB) databases
• Familiarity with Oauth2, JWT, and Hashi Corp Vault, Citi’s COIN for advanced authentication and authorization mechanisms.
• Experience with Redis or equivalent for caching and performance optimization
• Experience with Continuous Integration and Continuous Delivery (CI/CD) pipelines, either on-premise or cloud (i.e., Tekton, Harness, Jenkins, etc.).
• Familiarity with Dev Ops Practices and containerization tools like Docker and Kubernetes.
• Hands-on experience with test automation tools/frameworks such as Junit, Mockito, REST Assured, Cucumber or Selenium.

Nice to have

Skills:

• Exposure to Api Gateways, Service Discovery and Distributed Tracing
• Exposure to Workflow tools (e.g Pega, IBM BPM) and low/No code platforms like Unqork, Outsystem.
• Experience in Fenergo is a big plus
• Experience with code quality tools (e.g. Sonar Qube, Check marks)
• Exposure to data analytics, visualization tools (e.g., Tableau, Celonis)

Education:

• Bachelors degree in Computer Science, Engineering, or a related technical field or equivalent experience

Soft skills:

• Excellent communication and interpersonal skills, with the ability to bridge technical and business teams.
• Excellent problem-solving, analytical, negotiation skills.
• Adaptability, resilience, and a commitment to continuous learning in a rapidly evolving IT landscape.
• Proactive approach to identifying and mitigating risks.

------------------------------------------------------

Job Family Group:

------------------------------------------------------

Job Family:

------------------------------------------------------

Time Type:

------------------------------------------------------

Primary Location Full…