Software Engineer – Java Developer

Job description

We are seeking a skilled and motivated Java Developer to join our engineering team. This is an exciting opportunity for a strong backend engineer who wants to maintain deep expertise in core Java technologies while actively building practical experience in the rapidly evolving field of Artificial Intelligence. Key Responsibilities: Design & Development: Architect, build, and maintain high-quality, scalable, and secure backend services and RESTful APIs using Java (version 17 or higher) and the Spring Boot framework. Microservices Architecture: Develop and deploy microservices in containerized environments (Docker, Kubernetes/OpenShift). Database Management: Design and optimize database schemas, write efficient queries, and integrate with relational (e.g., PostgreSQL, Oracle) and non-relational (e.g., MongoDB, Cassandra) databases. CI/CD & DevOps: Participate in and improve continuous integration and continuous deployment (CI/CD) pipelines to ensure automated, reliable software delivery. Code Quality & Testing: Write clean, maintainable, and testable code. Implement comprehensive unit, integration, and contract tests (JUnit, Mockito). Collaboration: Work closely with product managers, system architects, and frontend engineers to translate business requirements into technical solutions. AI Feature Integration: Integrate Large Language Model (LLM) APIs (e.g., OpenAI, Anthropic, or internal AI gateways) into existing Java applications to enable smart features like summarization, semantic search, or automated classification. Framework Utilization: Utilize modern Java-based GenAI libraries and frameworks, such as LangChain4j or Spring AI , to build Retrieval-Augmented Generation (RAG) pipelines and agentic workflows. Required Technical Skills Programming Language: Strong proficiency in Java (Java 11/17+ preferred), including deep understanding of multi-threading, concurrency, and object-oriented design patterns. Frameworks: Extensive experience with Spring Boot, Spring Cloud, Spring Data, and Spring Security. APIs: Proven experience designing and consuming RESTful Web Services. Databases: Solid experience with SQL (PostgreSQL, MySQL, or Oracle) and ORM frameworks like Hibernate/JPA. Build & Version Control: Proficiency with Git, Maven, or Gradle. Preferred Qualifications Experience with cloud platforms (AWS, GCP, or Azure). Familiarity with message brokers/queues (Apache Kafka, RabbitMQ). Prior experience building a basic Retrieval-Augmented Generation (RAG) application or chatbot (even as a personal project). Familiarity with Python (for basic AI scripting or data manipulation) is a plus, though the primary focus remains Java. Soft Skills & Competencies Curiosity & Continuous Learning: A strong desire to stay updated on both Java advancements and the fast-moving GenAI landscape. Problem-Solving: Analytical mindset with the ability to troubleshoot complex backend issues and design creative AI-driven solutions. Communication: Excellent verbal and written communication skills, with the ability to explain technical concepts to both technical and non-technical stakeholders. Collaboration: A team player who thrives in an agile, collaborative environment. Education & Experience Bachelor’s degree in Computer Science, Engineering, or a related technical field (or equivalent practical experience). 5+ years of professional software development experience focusing on Java backend systems. Demonstrated interest or minor project experience (academic, personal, or professional) involving Generative AI or LLM integration. ------------------------------------------------------ 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.