**Fixed Income Sales and Trading Services Technology (FI S\&T Services Tech)** is responsible for delivering advanced technology solutions to support Citi Markets Fixed Income businesses. The Java Backend Specialist is a senior\-level position focused on designing, developing, and implementing complex frontend systems. This role emphasizes driving innovation, ensuring seamless system integration, and delivering impactful solutions to meet business objectives. Key Responsibilities: * Lead the design, development, and deployment of scalable backend systems using Java and modern frameworks. * Architect and implement microservices\-based solutions to support business requirements. * Develop and maintain RESTful APIs and integrate with external systems. * Optimize system performance, scalability, and reliability. * Ensure code quality through best practices, including code reviews, unit testing, and documentation. * Collaborate with product managers, architects, and other stakeholders to define technical requirements. * Troubleshoot and resolve complex technical issues in production and development environments. * Mentor and guide junior and mid\-level developers, fostering a culture of technical excellence. * Stay ahead of emerging technologies and recommend their adoption where appropriate. **Required Skills and Qualifications:** * Significant professional experience in backend development with Java. * Expertise in Java frameworks such as Spring Boot, Hibernate, and related technologies. * Strong experience with microservices architecture and cloud platforms (AWS, Azure, or GCP). * Proficiency in designing and working with relational databases (e.g., MySQL, PostgreSQL) and NoSQL databases (e.g., MongoDB). * Hands\-on experience with containerization (Docker) and orchestration tools (Kubernetes). * Strong knowledge of CI/CD pipelines, version control systems (Git), and DevOps practices. * Experience with messaging systems like Kafka or RabbitMQ. * Proven ability to lead technical discussions and make architectural decisions. * Excellent problem\-solving skills and a deep understanding of system design principles. * Strong communication and leadership skills. **Preferred Qualifications:** * Experience with event\-driven architecture and distributed systems. * Knowledge of security best practices for backend systems. * Familiarity with monitoring and logging tools (e.g., Prometheus, Grafana, ELK Stack). * Exposure to frontend technologies and their integration with backend systems. * Understanding of Python, Generative AI (Gen AI), and LLMs, including their applications and frameworks, is a plus. \- **Job Family Group:** Technology \- **Job Family:** Applications Development \- **Time Type:** Full time \- **Most Relevant Skills** Please see the requirements listed above. \- **Other Relevant Skills** For complementary skills, please see above and/or contact the recruiter. \- *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.* *If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review* *Accessibility at Citi**.* *View Citi’s* *EEO Policy Statement* *and the* *Know Your Rights* *poster.*