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REQUIREMENT_ID_1338 β€’ 3-DAY_ACTIVE_POLICY

Java/J2EE Developer

Company
Company Citigroup
Type
Opportunity Type Full-Time Job
Salary
Stipend / Salary 6 LPA
Location
Location Pune, Maharashtra
Posted Date
Posted Date Today
Java J2EE OOP Data Structures Algorithms Debugging SQL Git Maven REST APIs Problem Solving Communication
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Aptitude Practice Questions Open Resource β†—
Helps you sharpen quantitative and logical reasoning needed for the online assessment at Citi.
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Company Interview Preparation Guide Open Resource β†—
Provides a collection of interview experiences and tips useful for tackling Citi's technical rounds.
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Citi Specific Interview Resources Open Resource β†—
Curated material focusing on the types of questions and topics frequently asked in Citi interviews.
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Algorithm Practice Problems Open Resource β†—
Offers a wide range of coding problems to improve problem‑solving speed for the coding test.

Bachelor’s degree in Computer Science, Information Technology, Electronics & Communication, or any related engineering discipline; Minimum 60% aggregate or CGPA 6.0/10; Graduation batch 2024‑2026; No active backlogs at the time of joining; Strong programming fundamentals and good communication skills.

1
Round 1: Online Assessment (aptitude + coding)
2
Round 2: Technical Interview (core Java, problem solving)
3
Round 3: HR Interview (fitment and motivation)
Citi is a global financial services powerhouse with a presence in more than 100 countries. In India, the bank has built a strong technology ecosystem that supports retail, corporate, and investment banking operations. The company invests heavily in digital transformation, leveraging cloud, AI, and data analytics to deliver seamless experiences to its customers. Working at Citi means being part of a diverse, inclusive environment where innovation is encouraged and employees are empowered to make an impact. The Technology division in Pune focuses on building and maintaining mission‑critical applications that drive the bank’s daily operations. As a Freshers Java/J2EE Developer, you will join a collaborative team of engineers, analysts, and product owners. Your primary responsibility will be to contribute to the design, development, testing, and maintenance of Java‑based applications that support banking workflows. You will get hands‑on exposure to the full software development lifecycle, from requirement gathering to production deployment, while adhering to Citi’s stringent security and compliance standards. Key Responsibilities: 1. Write clean, efficient, and well‑documented Java code for new features and enhancements. 2. Participate in code reviews and adopt best coding practices. 3. Debug and resolve application issues reported by business users. 4. Develop unit tests and support integration testing activities. 5. Collaborate with senior developers to understand architectural guidelines. 6. Assist in performance tuning and optimization of existing modules. 7. Contribute to documentation of technical specifications and user guides. 8. Stay updated with emerging Java frameworks and suggest improvements. 9. Work closely with QA and DevOps teams to ensure smooth releases. 10. Participate in agile ceremonies such as sprint planning and retrospectives. Tech Stack: Java (Core, J2EE), Servlets, JSP, Spring (basic), RESTful APIs, SQL/Oracle, Git, Maven, Jenkins, Linux. Growth Path: Starting as an Analyst, you can progress to Senior Analyst, Associate, and eventually to Technology Lead or Architect, depending on performance and skill acquisition. Citi offers structured learning programs, certifications, and mentorship to accelerate career growth. Why Join Citi? The role offers exposure to real‑world banking applications, a chance to work with cutting‑edge technologies, and a supportive culture that values continuous learning. The hybrid work model provides flexibility while maintaining strong team collaboration. Moreover, Citi’s global brand and extensive network open doors to diverse career opportunities across geographies and domains.

Citigroup β€” Data Analytics & SQL Interview Guide

Previously asked questions, exam syllabus, coding benchmarks & round strategy.

APTITUDE & LOGIC πŸ“–
Aptitude Practice Questions & Online Mock Tests

Curated logical, quantitative, and verbal reasoning problems to sharpen reasoning skills required for the initial screening test.

Open Resource β†—
COMPANY GUIDE 🎯
Citigroup Interview Preparation Corner

Comprehensive guide covering typical interview formats, common questions, and preparation tips for Citigroup and off-campus tech roles.

Open Resource β†—
MOCK TESTS & PAPERS πŸ“
Comprehensive Interview Prep Resources & Syllabus

Collection of previous year questions, company-specific test patterns, and interview experiences for technical and HR rounds.

Open Resource β†—
CODING PRACTICE πŸ’»
Algorithm and Data Structure Problem Set

Practice problems to improve coding proficiency and algorithm problem-solving speed for technical rounds.

Open Resource β†—
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, J2EE, OOP, Data Structures, Algorithms, Debugging, SQL, Git, Maven, REST APIs, Problem Solving, Communication) & 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
Citigroup Core Values, Learning Agility & Offer Terms
Demonstrate passion, strong communication, and readiness for full-time collaboration.
What is the difference between WHERE and HAVING clauses in SQL? Answer β–Ό
Model Answer: WHERE filters rows before any groupings are applied, while HAVING filters aggregated groups after GROUP BY has executed.
Explain SQL Window functions: ROW_NUMBER(), RANK(), and DENSE_RANK(). Answer β–Ό
Model Answer: ROW_NUMBER() assigns unique sequential integers. RANK() assigns identical ranks to ties and skips ranks. DENSE_RANK() assigns identical ranks to ties without skipping rank numbers.
How do you handle NULL and missing values during data cleaning in Python/Pandas? Answer β–Ό
Model Answer: Use .isna().sum() to identify missing values. Impute with mean/median using .fillna() or remove with .dropna(subset=[...]) depending on variance impact.
What is the difference between Star Schema and Snowflake Schema in Data Warehousing? Answer β–Ό
Model Answer: Star Schema has denormalized dimension tables directly connected to the central Fact table. Snowflake Schema normalizes dimension tables into sub-dimensions to minimize redundancy.
How do you calculate MoM (Month-over-Month) growth in SQL? Answer β–Ό
Model Answer: Use LAG(revenue, 1) OVER (ORDER BY month) to fetch the previous month's revenue and compute (revenue - prev_revenue) / prev_revenue * 100.
Why do you want to join Citigroup as a Java/J2EE Developer?
Preparation Tip: Highlight Citigroup'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.
Preparation Tip: 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?
Preparation Tip: Explain your prioritization strategy, proactive communication with mentors/peers, and agile mindset.

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