Java Fullstack Developer

We are seeking a talented and motivated Full Stack Developer with 2 to 4 years of experience in building scalable, robust web applications using Java (Spring Boot) and Angular . In this role, you will be responsible for designing, developing, and maintaining end-to-end features, crafting responsive user interfaces, and implementing high-performance microservices and RESTful APIs. You will work closely with cross-functional teams including product managers, UI/UX designers, and QA engineers in an Agile environment.   Key Responsibilities 1. Frontend Development (Angular) Design and implement responsive, accessible, and high-performance UI components using Angular (v12+) , TypeScript , HTML5 , and SCSS/CSS3 . Manage state and asynchronous data streams utilizing RxJS and modern Angular reactive patterns (and/or NgRx). Ensure cross-browser compatibility and optimize frontend loading performance and rendering efficiency. Collaborate with UI/UX designers to translate wireframes and user stories into clean, functional code. 2. Backend & API Development (Java / Spring Boot) Develop, test, and deploy resilient microservices and RESTful APIs using Java (Java 11/17+) and the Spring Boot ecosystem (Spring MVC, Spring Data JPA, Spring Security). Implement efficient business logic, data validation, exception handling, and secure authentication/authorization (OAuth2, JWT). Optimize backend processing for low latency, scalability, and high availability. 3. Database & Data Integration Write and optimize complex queries, stored procedures, and schema migrations using relational databases (such as PostgreSQL , Oracle , or MySQL ). Utilize ORM frameworks like Hibernate / Spring Data JPA effectively, preventing performance pitfalls (e.g., N+1 query issues). Work with caching layers (such as Redis) and message brokers (such as Kafka or RabbitMQ) where applicable. 4. Quality Assurance, DevOps & CI/CD Write clean, maintainable, and well-documented code adhering to industry best practices and SOLID principles. Develop unit and integration tests using JUnit 5 , Mockito for backend, and Jasmine/Karma or Jest for frontend to maintain high test coverage. Participate in code reviews, CI/CD pipeline automation (GitLab CI, GitHub Actions, Jenkins), and containerized deployments using Docker .     Required Skills & Qualifications Technical Competencies Core Experience: 2 to 4 years of hands-on professional software development experience in full-stack web applications. Backend: Strong proficiency in Java 11 / Java 17 and core Java concepts Solid experience with Spring Boot , Spring MVC , and Spring Data JPA/Hibernate . Proven track record of designing and consuming RESTful APIs and JSON data structures. Frontend: Has experience in Angular , TypeScript , JavaScript (ES6+) , HTML5 , and CSS3/SCSS . Practical understanding of RxJS , Angular Services, Dependency Injection, Routing, and Reactive Forms. Databases: Working knowledge of SQL and relational databases (e.g., PostgreSQL, MySQL, Oracle DB). Testing & Tooling: Experience writing automated unit and integration tests ( JUnit , Mockito , Jasmine/Karma ). Proficient with version control systems ( Git ) and build tools ( Maven or Gradle , npm/yarn ). ------------------------------------------------------ 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.