N #2969
Applications open
Full-Time Job
Java Developer
Infosys
About the role
Job Description
Java Developer Position
Java Developer Experience
1-5 Years
Job Summary
We are looking for a talented Java Developer with 1-5 years of experience in designing, developing, and maintaining scalable enterprise applications. The ideal candidate should have strong expertise in Core Java, Spring Boot, Microservices, REST APIs, and relational databases.
Key Responsibilities
- Design, develop, test, and maintain Java-based applications.
- Build scalable and high-performance backend services using Java and Spring Boot.
- Develop RESTful APIs and integrate with third-party applications.
- Participate in the complete Software Development Life Cycle (SDLC).
- Write clean, maintainable, and efficient code following coding standards.
- Troubleshoot, debug, and enhance existing applications.
- Collaborate with cross-functional teams including UI developers, QA teams, and business stakeholders.
- Optimize application performance and ensure high availability.
- Participate in code reviews and technical discussions.
Required Skills
- 1-5 years of hands-on experience in Java development.
- Strong knowledge of Core Java, OOPs Concepts, Collections, Exception Handling, and Multithreading.
- Experience with Spring Boot, Spring MVC, and Spring Data JPA.
- Knowledge of Microservices Architecture.
- Experience in developing RESTful APIs and web services.
- Strong SQL skills with databases such as MySQL, PostgreSQL, Oracle, or SQL Server.
- Familiarity with Git, Maven, and Gradle.
- Basic understanding of design patterns and software engineering principles.
Preferred Skills
- Experience with Docker and Kubernetes.
- Exposure to cloud platforms such as AWS, Azure, or GCP.
- Knowledge of Kafka, RabbitMQ, or other messaging systems.
- Experience with CI/CD tools such as Jenkins, GitHub Actions, or Azure DevOps.
- Familiarity with Agile/Scrum methodologies.
- Educational Qualification Bachelor's Degree in Computer Science, Information Technology, Engineering, or related field.
Eligibility & process
Who can apply
Experience: 1-5 Yrs. Open to matching qualifications.
Skills & stack
Selection process
- Online Assessment / Technical Interview Rounds / HR Review
Prep kit
20 resourcesStudy material 4
Aptitude Practice Questions & Mock Tests
Curated logical, quantitative, and verbal reasoning problems for the initial online screening round.
Company-Specific Interview Preparation Corner
Detailed interview experiences, exam formats, and previous test questions for Infosys and tech roles.
Technical Placement Question Bank
High-yield coding cheat sheets, core CS fundamentals (OOP, DBMS, OS, Networks), and rapid revision guides.
Algorithm, DSA & Live Code Debugger Practice
Hands-on problem sets to improve coding speed and step-by-step memory debugging.
Company-specific guides 4
APTITUDE & LOGIC
Aptitude Practice Questions & Online Mock Tests
Curated logical, quantitative, and verbal reasoning problems to sharpen reasoning skills required for the initial screening test.
COMPANY GUIDE
Infosys Interview Preparation Corner
Comprehensive guide covering typical interview formats, common questions, and preparation tips for Infosys and off-campus tech roles.
MOCK TESTS & PAPERS
Comprehensive Interview Prep Resources & Syllabus
Collection of previous year questions, company-specific test patterns, and interview experiences for technical and HR rounds.
CODING PRACTICE
Algorithm and Data Structure Problem Set
Practice problems to improve coding proficiency and algorithm problem-solving speed for technical rounds.
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 (Boot, Java Development, Spring Boot, Microservices, Java, SQL, REST APIs, PostgreSQL) & 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
Infosys Core Values, Learning Agility & Offer Terms
Demonstrate passion, strong communication, and readiness for full-time collaboration.
Technical questions 5
What is the difference between WHERE and HAVING clauses in SQL? Answer
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
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
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
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
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.
Behavioural & HR questions 3
Why do you want to join Infosys as a Java Developer?
Highlight Infosys's market reputation, recent tech innovations, and how your skills in Boot directly solve their team's objectives.
Highlight Infosys's market reputation, recent tech innovations, and how your skills in Boot 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).
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.
Explain your prioritization strategy, proactive communication with mentors/peers, and agile mindset.
Competitive Package (Best in Industry)
Bengaluru, India
Experience: 1-5 Yrs. Open to matching qua…
