Senior Software Developer

10+ Senior Software Developer Interview Questions and Answers for Freshers

Updated 16 Feb 2025
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Q1. How will you resolve performance issues of a website?

Ans.

I will identify the root cause and optimize code, database, and server configurations.

  • Analyze website performance using tools like Google PageSpeed Insights, GTmetrix, etc.

  • Identify the root cause of performance issues by analyzing server logs and database queries.

  • Optimize code by reducing database queries, using caching, and minimizing HTTP requests.

  • Optimize database by indexing tables, optimizing queries, and reducing table joins.

  • Optimize server configurations by increasing ...read more

Q2. How is credit management and pricing is related

Ans.

Credit management and pricing are related as creditworthiness affects pricing decisions.

  • Creditworthiness of a customer affects the interest rate they are offered for loans or credit cards.

  • Higher credit scores may result in lower interest rates and fees.

  • Credit risk is also a factor in determining pricing for financial products.

  • For example, a lender may charge higher interest rates to customers with lower credit scores to offset the risk of default.

  • Credit management practices c...read more

Q3. What is server less architecture ? What is Partition Key in cosmos ? How to connect cosmos db?

Ans.

Serverless architecture is a cloud computing model where the cloud provider manages the infrastructure and automatically scales resources.

  • Serverless architecture eliminates the need for managing servers and infrastructure

  • It allows developers to focus on writing code and deploying applications

  • Resources are provisioned and scaled automatically based on demand

  • Examples of serverless services include AWS Lambda, Azure Functions, and Google Cloud Functions

Q4. Differences between interfaces and abstract classes

Ans.

Interfaces define contracts for behavior while abstract classes provide partial implementation.

  • Interfaces cannot have implementation while abstract classes can have partial implementation

  • A class can implement multiple interfaces but can only inherit from one abstract class

  • Interfaces are used for loose coupling while abstract classes are used for code reuse

  • Example of interface: Comparable interface in Java

  • Example of abstract class: Animal class with abstract method 'makeSound'

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Q5. How will you improve core web vitals?

Ans.

Improving core web vitals involves optimizing page speed, interactivity, and visual stability.

  • Optimize images and videos to reduce page load time

  • Minimize HTTP requests by combining files and using caching

  • Use lazy loading to defer loading of non-critical resources

  • Eliminate render-blocking resources

  • Reduce server response time by optimizing code and database queries

  • Use a content delivery network (CDN) to reduce latency

  • Prioritize above-the-fold content to improve interactivity

  • Avo...read more

Q6. What is auto wired in spring boot?

Ans.

Auto wiring in Spring Boot is a feature that allows Spring to automatically inject dependencies into a bean.

  • Auto wiring eliminates the need for manual configuration of dependencies in Spring beans

  • It can be achieved by using @Autowired annotation

  • There are different types of auto wiring modes like 'byType', 'byName', 'constructor', and 'autodetect'

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Q7. What is stack in DSA? PUSH POP etc

Ans.

A stack is a data structure that follows the Last In First Out (LIFO) principle, where elements are added and removed from the top.

  • Stack is a linear data structure with two main operations: PUSH (adds an element to the top) and POP (removes the top element).

  • Other common operations include peek (view the top element without removing it) and isEmpty (check if the stack is empty).

  • Example: In a stack of plates, you can only add or remove plates from the top, not from the middle o...read more

Q8. Difference between abstract class and interface ?

Ans.

Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.

  • Abstract class can have constructors, fields, and methods, while interface cannot have any implementation.

  • A class can implement multiple interfaces but can only inherit from one abstract class.

  • Abstract classes are used to define a common base class for related classes, while interfaces are used to define a contract for classes to implement.

  • Example: Abstract class 'Sh...read more

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Q9. What is store procedures in MYQL

Ans.

Stored procedures in MySQL are precompiled SQL statements that can be saved and reused.

  • Stored procedures are used to improve performance and reduce network traffic.

  • They can be used to encapsulate business logic and complex queries.

  • They can also be used to enforce security and access control.

  • Stored procedures are created using the CREATE PROCEDURE statement.

  • They can be called using the CALL statement.

Q10. how async improves performance?

Ans.

Async improves performance by allowing non-blocking execution of tasks.

  • Async programming allows multiple tasks to run concurrently, improving overall system throughput.

  • By avoiding blocking operations, such as waiting for I/O or network requests, other tasks can continue execution.

  • Async programming can utilize resources more efficiently by reducing idle time.

  • It enables better responsiveness in user interfaces by not blocking the main thread.

  • Examples of async programming in act...read more

Q11. Pricing procedure determination

Ans.

Pricing procedure determination is the process of defining how prices are calculated for products or services.

  • Pricing procedure determination involves defining condition types, which are used to calculate prices based on various factors such as quantity, discounts, taxes, etc.

  • The pricing procedure is determined based on the sales area, customer, and material master data.

  • Examples of condition types include discounts, surcharges, freight charges, taxes, etc.

  • The pricing procedur...read more

Q12. Would you consider Chennai as base location

Ans.

Yes, Chennai is a suitable base location for me.

  • Chennai has a thriving IT industry with many job opportunities for software developers.

  • The city offers a good work-life balance with affordable cost of living.

  • Chennai has a rich cultural heritage and diverse cuisine to explore in free time.

Q13. How to develop software services

Ans.

Developing software services involves designing, implementing, testing, and deploying services that meet user requirements.

  • Identify user requirements and design the service architecture accordingly

  • Implement the service using appropriate programming languages and frameworks

  • Test the service thoroughly to ensure it meets user requirements and is reliable

  • Deploy the service to a production environment and monitor its performance

  • Continuously improve the service based on user feedba...read more

Q14. Item Category Determination

Ans.

Item Category Determination is the process of assigning a category to a product based on its attributes.

  • Consider the product's features such as size, weight, material, and intended use

  • Use a classification system such as UNSPSC or NAICS

  • Automate the process using machine learning algorithms

  • Ensure accuracy by regularly reviewing and updating categories

Q15. Previous project and os concept

Ans.

Developed a project using the concept of operating systems to optimize resource allocation and improve performance.

  • Implemented process scheduling algorithms like Round Robin and Priority Scheduling.

  • Utilized memory management techniques such as paging and segmentation.

  • Used synchronization mechanisms like semaphores and mutexes to prevent race conditions.

Q16. Overall full MERN/SERN stack covered.

Ans.

Yes, I have experience with both MERN and SERN stacks.

  • Proficient in MongoDB, Express.js, React, and Node.js

  • Experience building full stack applications using MERN/SERN stack

  • Knowledge of RESTful APIs and GraphQL for data fetching and manipulation

Q17. List vs Tuple vs Dict vs Array

Ans.

List, Tuple, Dict, and Array are data structures in Python with different characteristics and use cases.

  • List: Mutable, ordered collection of items. Example: [1, 2, 3]

  • Tuple: Immutable, ordered collection of items. Example: (1, 2, 3)

  • Dict: Unordered collection of key-value pairs. Example: {'key1': 'value1', 'key2': 'value2'}

  • Array: Homogeneous collection of items with fixed size. Example: [1, 2, 3]

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