Build enterprise applications with Java, Spring Boot, and React.js as a Senior Full Stack Developer in hybrid Mississauga, Ontario. Deliver scalable software across front-end and backend systems.
At Citi, this intermediate-level Applications Development role supports recent and revised application systems with the Technology team. You will develop responsive interfaces, resilient microservices, RESTful APIs, and MCP services for AI agents. The work includes AWS, OpenShift, Kubernetes, S3, Oracle, TypeScript, and CI/CD pipelines.
Key Responsibilities: Design, develop, test, and deploy end-to-end application solutions
Build React.js front-end components and Java Spring Boot microservices
Architect RESTful APIs and MCP services for AI agents




Manage cloud applications using AWS, OpenShift, and Kubernetes
Partner with product managers, designers, and engineers
Requirements: Six-plus years of full-stack software development experience
Six-plus years designing microservice-based applications
Proficiency in Java, Spring Boot, React.js, and TypeScript
Experience with AWS, Docker, Kubernetes, or OpenShift
Bachelor’s degree or equivalent experience
Apply enterprise Java, React.js, cloud, and API expertise to Citi applications development in Mississauga.

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📌 Senior Java React Full Stack Developer (Ontario)
🏢 Citigroup
📍 Ontario