Java Fullstack Developer

• *Discover your future at Citi**
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Working at Citi is far more than just a job. A career with us means joining a team of approximately 219,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.

• *Job Overview**
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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**).

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• *Job Family Group:**
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Technology

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• *Job Family:**
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Applications Development

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• *Time Type:**
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Full time

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• *Most Relevant Skills**
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Please see the requirements listed above.

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• *Other Relevant Skills**
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For complementary skills, please see above and/or contact the recruiter.

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• 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.*