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Applications open Full-Time Job

Java Fullstack Developer With React

Citi

  • Chennai, India
  • Competitive Package
  • 3-5 Years
  • Posted Today
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About the role

Event Master Central is Citi’s centralized corporate action event repository and distribution platform that consolidates corporate action announcements and notifications from various vendors with cross-business operational process. As a critical pillar within the Master Reference Data (MRD) and the broader Citi Enterprise Data Organization (EDO), our team is responsible for modernizing and managing the end-to-end lifecycle of corporate Action events across the enterprise.

Role Overview/What will you do

  • Develop and implement complex software solutions using Java/J2EE, Spring Boot, and RESTful web services – Full Stack Development
  • Design, develop, and maintain robust microservices adhering to architectural best practices.
  • Apply hands-on expertise in Core Java, including multi-threading and the Collections framework.
  • Utilize Spring Framework effectively for application development.
  • Ensure adherence to software engineering best practices, object-oriented programming (OOP) principles, and design patterns.
  • Contribute to the continuous integration and continuous delivery (CI/CD) pipelines.
  • Manage source code effectively using tools such as Git.
  • Promote and apply clean coding principles and maintain high quality using tools like Sonar.
  • Design and implement comprehensive unit, integration, and functional tests to ensure solution quality.
  • Analyze and solve complex technical problems efficiently.
  • Work with a team of application developers, fostering a culture of excellence, collaboration, and continuous improvement.

Key Skills and Experience required

  • 4+ years experience in developing and implementing complex software solutions – Full Stack.
  • Strong knowledge of Java/J2EE, Spring Boot, and RESTful web services (XML, JSON).
  • Front-End Dev Skills: React JS
  • Proven experience working with Microservices Architecture.
  • Hands-on experience with Core Java, Multi-threading, Collections framework, and Spring Framework.
  • Solid understanding of software engineering best practices, OOP, design patterns, and CI/CD pipelines.
  • Experience with source code management tools (Git).
  • Understanding of clean coding principles and code quality measurements using tools like Sonar.
  • Demonstrated ability to design and implement unit, integration, and functional tests.
  • A strong, solution-driven mindset with the ability to analyze complex problems, devise strategic solutions, and lead their implementation.
  • Good written and verbal communication skills.

Any Beneficial / Nice to have experience:

  • Experience with AI technology (Devin, Co Pilot)
  • Understanding of Cloud-native development principles.
  • Experience with Container Orchestration tools (Docker, Kubernetes, OpenShift, etc.).
  • Proficiency in using Jira for tracking tasks, managing backlogs, and participating in sprint cycles.

This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

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Job Family Group

Technology

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Job Family

Applications Development

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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.

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.

Eligibility & process

Who can apply

Employment type: Full-time

Skills & stack

Java JavaScript React Spring Boot REST APIs Microservices Docker Kubernetes

Selection process

Details are shared by the recruiter after shortlisting.

Prep kit

20 resources
Study material 4
Company-specific guides 4
Likely coding questions 4
Round-wise strategy 4
Round 1: Online Assessment (OA) Aptitude, Quantitative Logic & 2 Coding Problems Focus on accuracy and speed. Practice arrays, strings, and standard arithmetic puzzles.
Round 2: Technical Interview 1 Core Tech Stack (Java, JavaScript, React, Spring Boot, REST APIs, Microservices, Docker, Kubernetes) & Live Code Tracing Explain your thought process aloud. Analyze time & space complexities before coding.
Round 3: System Design & Problem Solving Database Schemas, APIs & Architecture Basics Clarify edge cases, diagram schemas cleanly, and discuss scalability trade-offs.
Round 4: HR & Cultural Fit Discussion Citi Core Values, Learning Agility & Offer Terms Demonstrate passion, strong communication, and readiness for full-time collaboration.
Technical questions 5
Explain OOP (Object-Oriented Programming) principles with real-world examples in Java. Answer
Model answer: 1. Encapsulation (data hiding via private fields/getters). 2. Abstraction (hiding implementation complexity). 3. Inheritance (code reusability). 4. Polymorphism (method overriding/overloading).
What is the time and space complexity of QuickSort vs MergeSort? Answer
Model answer: QuickSort: Average O(N log N) time, O(log N) space. Worst O(N^2). MergeSort: Guaranteed O(N log N) time, but requires O(N) auxiliary space.
Explain the difference between SQL Indexing (B-Tree vs Hash) and when not to use an index. Answer
Model answer: Indexes speed up SELECT queries via B-Trees. However, they slow down INSERT, UPDATE, and DELETE operations because indexes must be updated on disk. Avoid on low-cardinality columns (e.g., boolean flags).
What happens under the hood when you enter a URL in a browser? Answer
Model answer: 1. DNS lookup (resolves IP). 2. TCP 3-way handshake (SYN, SYN-ACK, ACK). 3. TLS negotiation for HTTPS. 4. HTTP GET request sent. 5. Server responds with HTML/CSS/JS. 6. Browser renders DOM & CSSOM tree.
What is the difference between REST and GraphQL APIs? Answer
Model answer: REST uses multiple fixed endpoints with possible over/under-fetching. GraphQL uses a single endpoint allowing clients to query exact fields in a single request.
Behavioural & HR questions 3
Why do you want to join Citi as a Java Fullstack Developer With React?
Highlight Citi's market reputation, recent tech innovations, and how your skills in Java directly solve their team's objectives.
Describe a challenging bug or academic project roadblock and how you resolved it.
Use the STAR method: Situation (project context), Task (what needed solving), Action (specific tools/logic applied), Result (quantifiable positive outcome).
How do you handle strict deadlines or sudden scope changes?
Explain your prioritization strategy, proactive communication with mentors/peers, and agile mindset.
Citi Competitive Package
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