Applications Development Java Programmer –… at Citigroup · New Castle

Applications Development Java Programmer – Assistant Vice President Location: New Castle Delaware United States 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 & Technical Leadership Lead the design, development, and maintenance of efficient, reusable, and reliable Java code for high-volume, low-latency applications. Own and drive all phases of the development lifecycle, from technical specification to testing and deployment. 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, Design & Architecture Lead the analysis of complex user requirements to define business objectives and architect robust technical solutions. Drive architectural and design discussions, making key technical decisions to ensure robust and scalable solutions. Create and own detailed technical specifications and software architecture documents. Identify, evaluate, and champion the adoption of new technologies and frameworks to enhance the application stack. Unit Testing & Code Quality Define and implement comprehensive testing strategies, 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. Communicate complex technical concepts effectively to both technical and non-technical stakeholders, providing clear updates on project status and technical challenges. Required 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. Proven leadership, mentorship, and project management skills. Consistently demonstrates clear, concise, and influential written and verbal communication. Education: Bachelor’s degree/University degree or equivalent experience Master’s degree preferred This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required. ------------------------------------------------------ Job Family Group: Technology ------------------------------------------------------ Job Family: Applications Development ------------------------------------------------------ Time Type: Full time ------------------------------------------------------ Primary Location: New Castle Delaware United States ------------------------------------------------------ Primary Location Full Time Salary Range: $107,120.00 - $160,680.00 In addition to salary, Citi’s offerings may also include, for eligible employees, discretionary and formulaic incentive and retention awards. Citi offers competitive employee benefits, including: medical, dental & vision coverage; 401(k); life, accident, and disability insurance; and wellness programs. Citi also offers paid time off packages, including planned time off (vacation), unplanned time off (sick leave), and paid holidays. For additional information regarding Citi employee benefits, please visit citibenefits.com. Available offerings may vary by jurisdiction, job level, and date of hire. ------------------------------------------------------ Most Relevant Skills Please see the requirements listed above. ------------------------------------------------------ Other Relevant Skills For complementary skills, please see above and/or contact the recruiter. ------------------------------------------------------ Anticipated Posting Close Date: May 01, 2026 ------------------------------------------------------ Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. 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