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Lead Full Stack Java Developer

Canada, Mississauga 120800.00 - 170800.00 USD / Year · Job Posted April 19, 2026
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Job Description

The Lead Full Stack Java Developer – is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities.

Job Responsibility

  • Partner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements to deploy new products and process improvements
  • Resolve variety of high impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standards
  • Provide expertise in area and advanced knowledge of applications programming and ensure application design adheres to the overall architecture blueprint
  • Utilize advanced knowledge of system flow and develop standards for coding, testing, debugging, and implementation
  • Develop comprehensive knowledge of how areas of business, such as architecture and infrastructure, integrate to accomplish business goals
  • Provide in-depth analysis with interpretive thinking to define issues and develop innovative solutions
  • Serve as advisor or coach to mid-level developers and analysts, allocating work as necessary
  • Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency

Requirements

  • 6+ years of proven software development experience, specializing in Java, JavaScript framework like React, Spring Boot, and Oracle
  • In-depth knowledge of modern application architecture principles
  • Clear understanding of Data Structures and Object-Oriented Principles using Java
  • Practical experience with Artificial Intelligence (AI) tools for enhancing development workflows
  • Proficiency in Microservices frameworks (e.g., Spring Boot), Event-Driven Services, and Cloud-Native Application Development
  • Multiple years of experience on Service Oriented and Microservices architectures, including REST and GraphQL implementations
  • Demonstrated ability to design, develop, and maintain both front-end and back-end components of robust web applications
  • Strong expertise in developing intuitive user interfaces using contemporary JavaScript frameworks (e.g., React), HTML5, and CSS
  • Solid experience in developing server-side logic and APIs using languages such as Java, Python, or similar
  • Comprehensive knowledge of SQL and PL/SQL, with a deep understanding of Relational Database Management Systems (RDBMS), particularly Oracle
  • Proven capability in designing, developing, and implementing high-performance RESTful APIs leveraging appropriate frameworks and technologies
  • Proficiency with Continuous Integration/Continuous Deployment (CI/CD) pipelines and tools for building (e.g., Maven, Gradle) and deploying code (e.g., Docker, Jenkins, OpenShift)
  • Experience with AWS is considered a significant advantage
  • Practical experience working within Agile development methodologies and utilizing project management tools such as JIRA
  • Bachelor’s degree/University degree or equivalent experience
  • Master’s degree preferred

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