Applications Development Java Programmer – Assistant Vice President
Citigroup
- Location
- Mississauga Ontario Canada
- Work model
- On-Site
- Level
- Staff
- Posted
- Aug 14, 2026
Skills
About this role
Job Overview
This is a hands-on technical developer role for a Applications Development Java Programmer. The position requires expert-level hands-on coding and development in Java of new or revised application systems and programs. The successful candidate will develop and code for complex requirements following architectural and industry best practices.
Responsibilities
Core Development Development, and maintenance of efficient, reusable, and reliable Java code for high-volume, low-latency applications. Architect and write well-designed, testable, and scalable code, setting the standard for software development best practices within the team. Ensure and take ownership of the optimal performance, quality, and responsiveness of the applications. Analysis of complex user requirements to define business objectives and build robust solutions. Create and own detailed technical specifications and low level software architecture documents and detailed solution architecture documentation. Identify, evaluate, and champion the adoption of new technologies and frameworks to enhance the application stack. Unit Testing & Code Quality Implement testing automation scripts, including unit, integration, and performance tests to ensure code quality and reliability. Do peer code reviews, enforcing high standards of code quality and providing constructive feedback to the team. Drive continuous improvement by investigating and implementing cutting-edge technologies and presenting them for architectural review. Maintenance & Support Ownership and accountability of the code that is delivered including problem solving during any production issues. Provide expert-level technical support for applications in production, leading the resolution of critical issues in a timely manner. Collaboration & Documentation Collaborate with and influence cross-functional teams, including business analysts, project managers, and other senior developers, to deliver high-quality software. Establish and enforce standards for documenting software functionality, processes, and technical specifications. Recommended Qualifications: 5+ years of professional Java Development experience, with significant time spent in a cloud environment. Expert-level proficiency in Java, API design, and Cloud engineering principles. Extensive, hands-on experience architecting and building RESTful APIs using popular frameworks like Spring and Spring Boot. Deep experience with Oracle, SQL, and NoSQL databases such as MongoDB. Proven experience with Cloud-native technologies, including OpenShift, Kubernetes, and messaging systems like MQ and Kafka. A strong commitment to and experience in applying clean code principles and design patterns. In-depth understanding and practical application of the software development lifecycle (SDLC) and Agile methodologies. Proven experience with DevOps practices and building/maintaining CI/CD pipelines. Demonstrated ability to lead projects and work autonomously in a fast-paced and rapidly changing environment. Extensive experience in systems analysis and programming of complex software applications. Proven ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements. Recommended Qualifications: Significant experience in the Financial domain with a focus on Payments is a strong plus. Understanding and practical experience with GenAI and LLMs is a plus. Experience in architecting integrations for mainframe applications with Kafka or APIs is a plus. Subject Matter Expert (SME) in at least one critical area of Applications Development. Demonstrated ability to adjust priorities and strategy quickly as circumstances dictate. Consistently demonstrates clear, concise, and influential written and verbal communication.
Education
Bachelor’s degree/University degree or equivalent experience This job description provides a high-level review of the types of work performed. Other