Java Backend Developer

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Discover your future at Citi

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

As a Junior Java Developer, you will work closely with senior engineers to implement new features, write test suites, debug backend services, and maintain our core application APIs. This is a high-growth opportunity where you will receive active mentorship, code reviews, and structured training in enterprise technologies like Spring Boot, cloud-native deployments, and distributed systems.

Key Responsibilities

Software Development & Maintenance

• Feature Implementation:Write clean, readable Java code to implement backend features and API endpoints based on technical specifications.
• Bug Fixing:Assist in troubleshooting, debugging, and resolving application bugs in non-production and production environments.
• Code Maintenance:Refactor and optimize existing code to improve maintainability and adherence to coding standards.

Quality Assurance & Testing

• Unit Testing:Write comprehensive unit and integration tests using JUnit and Mockito to maintain high test coverage.
• Code Quality:Participate in code reviews, receiving constructive feedback from senior peers to continuously improve code standards.

Platform & DevOps Exposure

• Database Basics:Write and optimize basic SQL queries, schema updates, and work with object-relational mapping (ORM) frameworks like Hibernate.
• CI/CD Awareness:Learn to use Git for version control, merge requests, and monitor builds through automatic CI/CD deployment pipelines.

Collaboration & Growth

• Agile Participation:Attend and participate in daily standups, sprint planning, and retrospectives.
• Continuous Learning:Dedicate time to understanding design patterns, system architecture, and new backend methodologies under the guidance of a senior mentor.

Required Technical Skills & Qualifications

Core Requirements (Must-Have)

• Education:Bachelor’s degree in Computer Science, Software Engineering, or a related technical field (or equivalent self-taught/bootcamp portfolio showing strong foundational knowledge).
• Core Java:Solid understanding of Core Java (version 11 or higher), including Object-Oriented Programming (OOP) concepts, Collections API, Exception Handling, and basic Multithreading.
• Databases:Foundational knowledge of Relational Databases (SQL) and basic query writing (e.g., PostgreSQL, MySQL, or Oracle).
• Version Control:Familiarity with Git workflows (cloning, branching, committing, pushing, and creating pull requests).

Preferred / Nice-to-Have Skills

• Familiarity with the Spring Ecosystem (Spring Boot, Spring MVC, Spring Data).
• Basic understanding of RESTful API design principles.
• Familiarity with Maven or Gradle build tools.
• Awareness of containerization concepts (Docker) or cloud platforms (AWS, Azure, GCP).
• Experience writing unit tests with JUnit.

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Job Family Group:

Technology

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Job Family:

Digital Software Engineering

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Time Type:

Full time

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Most Relevant Skills

Please see the requirements listed above.

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Other Relevant Skills

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.

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