Java Backend Developer

Citi; India; On-site; INR 450,000 - 650,000; Full time

Job summary

Citi is seeking a Junior Java Developer to collaborate with senior engineers to implement new features, write tests, debug backend services, and maintain core application APIs. You’ll receive active mentorship, code reviews, and structured training in enterprise technologies like Spring Boot, cloud-native deployments, and distributed systems.

In addition to hands-on development, you will work with SQL databases, ORM frameworks such as Hibernate, and Git-based workflows.

Qualifications

• Bachelor’s degree or equivalent with strong CS foundations.
• Core Java with OOP and collections.
• Relational databases and SQL basics.
• Familiarity with Git workflows and CI/CD processes.

Responsibilities

• Feature implementation: backend features and API endpoints.
• Bug fixing: troubleshoot and resolve issues in non-prod and prod.
• Code maintenance: refactor and ensure coding standards.
• Unit/integration testing: write tests with JUnit and Mockito.
• Code reviews: participate and receive feedback from seniors.

Skills

Core Java

OOP concepts

Collections API

Multithreading

Spring Ecosystem

REST API design

JUnit testing

Education

Bachelor’s degree in Computer Science or related field

Tools

Git

Maven/Gradle

Hibernate

Job description

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.

Job Family Group:

Technology

Job Family:

Digital Software Engineering

Time Type:

Full time

Most Relevant Skills

Please see the requirements listed above.

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