Senior Software Engineer Interview Questions and Answers in 2025 (100+ Q&A)

Ques:- Have you ever worked with notification queuing system?

Asked In :-

Right Answer:
Yes, I have worked with notification queuing systems, such as RabbitMQ and Apache Kafka, to manage message delivery and ensure reliable communication between services.

Senior Software Engineer

Ques:- How can we track views for a particular component on a website?

Asked In :-

Right Answer:
You can track views for a particular component on a website by using event tracking with analytics tools like Google Analytics. Implement event listeners in your code to send data to the analytics service whenever the component is viewed or interacted with. Additionally, you can use custom attributes or data layers to capture specific information about the component being tracked.

Senior Software Engineer

Ques:- How does a linked list work?

Asked In :-

Right Answer:
A linked list is a data structure consisting of nodes, where each node contains a value and a reference (or pointer) to the next node in the sequence. Unlike arrays, linked lists do not store elements in contiguous memory locations, allowing for efficient insertion and deletion of nodes. The first node is called the head, and the last node points to null, indicating the end of the list.

Senior Software Engineer

Ques:- Do you know about Rabbit MQ?

Asked In :-

Right Answer:
Yes, RabbitMQ is an open-source message broker that facilitates communication between applications by sending messages between them. It supports various messaging protocols and allows for reliable messaging, message queuing, and asynchronous processing.

Senior Software Engineer

Ques:- Stlc, sdlc, retesting, regression testing, Writing test cases

Asked In :- qburst,

Right Answer:
STLC (Software Testing Life Cycle) is the process of testing software, including planning, design, execution, and closure. SDLC (Software Development Life Cycle) is the overall process of software development, including requirements, design, implementation, testing, and maintenance.

Retesting is the process of testing a specific defect after it has been fixed to ensure it is resolved. Regression testing checks if new code changes have adversely affected existing functionality.

Writing test cases involves creating detailed documents that outline the conditions, inputs, and expected results for testing specific functionalities of the software.

Senior Software Engineer

Ques:- Explain the last project, What challenges you faced & how you overcome that & what you learn from it.

Asked In :-

Right Answer:
In my last project, I worked on developing a scalable web application for managing customer data. One major challenge was handling a sudden increase in user traffic, which caused performance issues. To overcome this, I implemented load balancing and optimized database queries, which improved response times significantly. I learned the importance of scalability and proactive performance monitoring in application design.

Senior Software Engineer

Ques:- Types of Trigger in Oracle forms? how to sequence of Trigger fire in oracle Forms.

Asked In :- Evergent Technologies, VXI Global Solutions,

Right Answer:
In Oracle Forms, there are several types of triggers, including:

1. **Key Triggers**: Respond to key events (e.g., KEY-ENTER, KEY-EXIT).
2. **Mouse Triggers**: Respond to mouse events (e.g., WHEN-MOUSE-CLICK, WHEN-MOUSE-DOUBLECLICK).
3. **Form Triggers**: Related to the form lifecycle (e.g., WHEN-NEW-FORM-INSTANCE, WHEN-NEW-BLOCK-INSTANCE).
4. **Block Triggers**: Related to block-level events (e.g., WHEN-NEW-RECORD-INSTANCE, WHEN-BLOCK-INSERT).
5. **Item Triggers**: Related to item-level events (e.g., WHEN-VALIDATE-ITEM, WHEN-ITEM-CHANGED).
6. **Database Triggers**: Related to database operations (e.g., BEFORE INSERT, AFTER UPDATE).

The sequence of trigger firing in Oracle Forms generally follows this order:

1. Form

Senior Software Engineer

Ques:- What is Canavas,LOV,List button?

Asked In :-

Right Answer:
Canvas: A workspace in a graphical user interface where elements like forms, charts, and images are displayed and manipulated.

LOV (List of Values): A feature that provides a predefined list of options for a user to select from, often used in dropdown menus.

List Button: A button that, when clicked, displays a list of items or options for the user to choose from, typically associated with LOVs.

Senior Software Engineer

Ques:- What is Place holder column in oracle reports?

Asked In :-

Right Answer:
A placeholder column in Oracle Reports is a temporary column used to hold values that are calculated or derived during the report generation process. It does not correspond to a database field but can be used to display computed data or to facilitate complex report layouts.

Senior Software Engineer

Ques:- What is DB block in oracle Forms?

Asked In :-

Right Answer:
A DB block in Oracle Forms is a type of data block that is directly associated with a database table or view, allowing users to interact with the data through the form. It enables operations like querying, inserting, updating, and deleting records in the database.

Senior Software Engineer

Ques:- What is Call_Form?

Asked In :-

Right Answer:
Call_Form is a built-in procedure in Oracle Forms that allows you to open another form from the current form, passing control and optionally passing parameters to the new form.

Senior Software Engineer

Ques:- What is Collection in Oracle and Types?

Asked In :-

Right Answer:
In Oracle, a Collection is a data structure that can hold multiple values. There are three main types of Collections:

1. **VARRAY**: A variable-size array that can store a fixed number of elements.
2. **Nested Table**: A table that can store an unbounded number of elements and can be used as a column in another table.
3. **Associative Array**: An array indexed by a key, which can be a string or a number, allowing for non-contiguous storage of elements.

Senior Software Engineer

Ques:- Difference between PK & UK, Case & Decode, Procedure & Function, Cursor & Refcursor.

Asked In :- CDAC Hyderabad, Evergent Technologies,

Right Answer:
1. **PK (Primary Key) vs. UK (Unique Key)**: A Primary Key uniquely identifies each record in a table and cannot contain NULL values, while a Unique Key also ensures uniqueness but can contain NULL values.

2. **CASE vs. DECODE**: CASE is a SQL conditional expression that can evaluate multiple conditions and return different results, while DECODE is a specific Oracle function that compares an expression to a list of values and returns a corresponding result.

3. **Procedure vs. Function**: A Procedure is a subroutine that performs an action but does not return a value, while a Function is a subroutine that performs an action and returns a value.

4. **Cursor vs. Refcursor**: A Cursor is a database object used to retrieve rows from a result set one at a time, while a Refcursor is a pointer to a cursor variable that allows for dynamic result sets and can be passed between PL/SQL programs.

Senior Software Engineer

Ques:- What is Dual in oracle DB?

Asked In :- qburst,

Right Answer:
In Oracle DB, "DUAL" is a special one-row, one-column table used primarily for selecting a pseudo column or performing calculations without needing a real table. It is often used in queries that require a FROM clause but do not need data from any specific table.

Senior Software Engineer

Ques:- Past experience with concerned technology?

Asked In :-

Right Answer:
I have worked extensively with [specific technology] for [number] years, focusing on [specific projects or tasks]. My experience includes [mention relevant skills, frameworks, or tools] and I have successfully [describe an achievement or contribution related to the technology].

Senior Software Engineer

Ques:- Framework design,oops concept, challange you face,roles and responsibilities,agile concept etc…

Asked In :- Unilog,

Right Answer:
In framework design, I focus on modularity, reusability, and scalability. I apply OOP concepts like encapsulation, inheritance, and polymorphism to create clean and maintainable code. Challenges I face include managing dependencies, ensuring performance, and adapting to changing requirements. My roles and responsibilities include designing architecture, writing code, conducting code reviews, and mentoring junior developers. In Agile, I participate in sprints, collaborate with cross-functional teams, and prioritize delivering incremental value through iterative development.

Senior Software Engineer

Ques:- Here they have work basically based on windows. So better to have c# and windows related stuff. Like win32, mfc, .net, c# . Here in my case I did not have experience in windows to ki made them clear about that. So they focused based on concepts and cpp in depth.

Asked In :- mirafra technologies,

Right Answer:
To prepare for a senior software engineer role focused on Windows development, you should have a strong understanding of C#, .NET, Win32, and MFC. Additionally, you should be well-versed in C++ concepts, including memory management, object-oriented programming, and design patterns. Familiarity with Windows APIs and application lifecycle management is also beneficial.

Senior Software Engineer

Ques:- Main focous on java and selenium.if you have devops knowledge then good to have..

Asked In :-

Right Answer:
To effectively use Java with Selenium for automated testing, ensure you have a solid understanding of Java programming, the Selenium WebDriver API, and how to structure your test cases. Familiarity with DevOps practices, such as CI/CD pipelines, can enhance your testing process by integrating automated tests into the deployment workflow.

Senior Software Engineer

Ques:- Why are you switching your current job

Asked In :- mirafra technologies,

Right Answer:
I am looking for new challenges and opportunities for growth that align more closely with my career goals and interests.

Senior Software Engineer

Ques:- This is the job here , do you think you will be suitable for this position

Asked In :- betsol,

Right Answer:
Yes, I believe I am suitable for this position due to my relevant experience, skills, and passion for the work involved.

A Senior Software Engineer is an experienced developer responsible for designing scalable software solutions, reviewing code, and leading project implementations. Beyond writing code, they often take ownership of system architecture, performance optimization, and aligning development with business objectives.

They work closely with cross-functional teams including product managers, designers, QA engineers, and DevOps. Their expertise spans various programming languages (like Java, Python, C#, JavaScript), frameworks, databases, and cloud platforms. They also focus on clean coding practices, testing strategies, and version control using tools like Git.

Senior engineers are expected to mentor junior developers, perform code reviews, troubleshoot complex bugs, and participate in architectural decisions. They also prioritize application performance, scalability, and security.

Soft skills like problem-solving, communication, team collaboration, and leadership are essential. Many senior roles require 5+ years of experience and knowledge of Agile methodologies, CI/CD, and modern development stacks.

They are a critical asset in any tech-driven organization, playing a key role in building reliable, maintainable, and high-performing software systems.

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