Tata Elxsi Design Software Developer Interview: Rounds, Questions and Preparation

What the job involves

Software Developers in Indian IT services like Tata Elxsi Design build and maintain software for client projects across domains such as automotive, embedded systems, and industrial design. Day to day, they write code, fix bugs, participate in code reviews, and coordinate with testers and project leads to deliver modules on time. Freshers usually start on structured training and then move to live project support under a senior developer.

Role and sector knowledge

1. 1

   What does a Software Developer in an Indian IT services company do differently from a product company developer?

   Explain that services work is client driven, involves multiple short projects, and requires adapting to client tools and processes. Mention documentation, deadlines, and coordination with testers and leads.

2. 2

   Why are embedded and automotive projects common in companies like Tata Elxsi Design, and what kind of software work do they involve?

   Talk about growing demand in automotive electronics, IoT, and industrial design. Mention low level C or C++ code, hardware interfaces, and testing on target boards.

3. 3

   What is the difference between a bug fix and a feature request in a client project?

   A bug fix corrects existing behaviour to match requirements, while a feature request adds new functionality. Show that you understand priority, testing, and client communication.

4. 4

   How would you handle a situation where you do not understand the client's existing codebase?

   Say you would read documentation, trace the flow with a debugger, ask seniors for a walkthrough, and start with small safe changes. Mention writing notes and using version control history.

Technical fundamentals

1. 5

   Explain the difference between a structure and a class in C++ with an example from a real project.

   Cover default access specifiers, inheritance, and methods. Give a simple example like a structure for sensor data versus a class for a device controller with methods.

2. 6

   How would you find and fix a memory leak in a C program?

   Mention tools like Valgrind, careful malloc and free pairing, and code review. Explain that you would reproduce the leak, isolate the function, and test after fixing.

3. 7

   Write a SQL query to find the second highest salary from an employee table and explain it.

   Use a subquery with MAX or a LIMIT and OFFSET approach. Explain each part clearly and mention that the exact syntax depends on the database.

4. 8

   What is the difference between process and thread, and why does it matter in embedded software?

   Explain memory sharing, context switching, and resource usage. In embedded systems, threads are often used for tasks like sensor reading and communication to keep the system responsive.

Practical scenarios

1. 9

   You are asked to add a new feature to a legacy C module with no tests. How do you proceed?

   Start by understanding current behaviour, add small tests around the area you touch, make minimal changes, and get a senior to review. Mention keeping a rollback plan.

2. 10

   Your code works on your machine but fails on the client's test environment. What do you check first?

   Check environment differences like compiler version, library paths, and configuration files. Ask for logs, reproduce the issue, and compare settings step by step.

3. 11

   You have two tasks with the same deadline and cannot finish both. What do you do?

   Communicate early to your lead, explain the trade offs, and ask for priority. Suggest a plan to complete the critical one first and give a realistic estimate for the other.

4. 12

   A tester reports a bug you cannot reproduce. How do you handle it?

   Ask for exact steps, logs, and environment details. Try to reproduce with the same data and version, and if still not reproducible, document what you tried and work with the tester.

Behavioural and HR

1. 13

   Tell me about a time you worked in a team on a college project and faced a conflict.

   Use a simple STAR structure. Focus on how you listened, suggested a compromise, and kept the project on track. Avoid blaming others.

2. 14

   Are you willing to relocate or work on any technology as per project needs?

   Be honest but positive. Say you are open to learning new technologies and relocating for the right opportunity, and mention any constraints clearly.

3. 15

   Where do you see yourself in three years in a services company?

   Show realistic growth like becoming a reliable module owner, learning a domain deeply, and mentoring juniors. Avoid saying you want to leave for a product company soon.

4. 16

   Why should we hire you when many freshers have similar marks?

   Highlight your projects, internships, coding practice, and willingness to learn. Give one concrete example of solving a problem or picking up a new tool quickly.