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Qualys Principal Software Engineer Interview Questions and Answers

Updated 30 Jul 2024

Qualys Principal Software Engineer Interview Experiences

1 interview found

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed in Jun 2024. There were 3 interview rounds.

Round 1 - Coding Test 

Medium level data structure interview question

Round 2 - One-on-one 

(1 Question)

  • Q1. Was on sytem design. They asked to design s web crawler.
Round 3 - One-on-one 

(2 Questions)

  • Q1. Discussion with director. About past experience.
  • Q2. Why looking for change ? What kind of work is there in qualys?
  • Ans. 

    I am looking for change to explore new challenges and opportunities. Qualys offers a variety of work in cybersecurity and cloud security.

    • Seeking new challenges and opportunities to grow professionally

    • Interested in cybersecurity and cloud security

    • Excited about the diverse range of projects at Qualys

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Never fake things.

Interview questions from similar companies

Interview Questionnaire 

1 Question

  • Q1. Questions on core java, data structures, Spring

I appeared for an interview before Nov 2020.

Interview Questionnaire 

3 Questions

  • Q1. Simple and Easy questions on OOPS, static variable, Prioriry queue,
  • Q2. Design question,
  • Q3. Binary Search

Interview Preparation Tips

Interview preparation tips for other job seekers - Easy you can crack this shit easily

Interview Questionnaire 

13 Questions

  • Q1. Difference between java and c?
  • Ans. 

    Java is an object-oriented language while C is a procedural language.

    • Java is platform-independent while C is platform-dependent.

    • Java has automatic garbage collection while C requires manual memory management.

    • Java has built-in support for multithreading while C requires external libraries.

    • Java has a larger standard library compared to C.

    • Java is more secure than C due to its strong type checking and exception handling.

    • C ...

  • Answered by AI
  • Q2. Aggregation functions in DBMS?
  • Ans. 

    Aggregation functions are used to perform calculations on groups of data in a database.

    • Aggregation functions include COUNT, SUM, AVG, MAX, and MIN.

    • They are used with the GROUP BY clause to group data based on a specific column.

    • COUNT function returns the number of rows in a table or the number of non-null values in a column.

    • SUM function returns the sum of values in a column.

    • AVG function returns the average of values in ...

  • Answered by AI
  • Q3. How to write any sentence (given to u ) in mirror image form in java?(ans :by 2 ways 1. reverse string function in string object 2 .by aaray conversion )
  • Ans. 

    Two ways to write a sentence in mirror image form in Java: reverse string function and array conversion.

    • Use the reverse() method of the String class to reverse the sentence

    • Convert the sentence to a character array, then swap the first and last characters, second and second-to-last characters, and so on until the middle is reached

    • Example: 'Hello World' becomes 'dlroW olleH'

  • Answered by AI
  • Q4. Why static is used in "public static void main"?
  • Ans. 

    Static is used in public static void main to allow the method to be called without creating an instance of the class.

    • Static methods belong to the class and not to any instance of the class.

    • The main method is the entry point of a Java program and needs to be called without creating an object of the class.

    • The static keyword allows the main method to be called directly from the class, without creating an instance of the c...

  • Answered by AI
  • Q5. Why there is abstract ,interface and enum class in java?
  • Ans. 

    Abstract classes, interfaces, and enums provide abstraction and modularity in Java.

    • Abstract classes provide a partial implementation of a class and cannot be instantiated.

    • Interfaces define a set of methods that a class must implement and can be used for multiple inheritance.

    • Enums provide a set of named constants.

    • All three are used for abstraction and modularity in Java.

    • Abstract classes and interfaces are used for polym...

  • Answered by AI
  • Q6. Object oriented software engg definition(definition contains word"framwork") ?and definitionof framwork
  • Ans. 

    Object-oriented software engineering is a framework for designing and developing software using objects.

    • Object-oriented software engineering is a methodology for designing and developing software using objects.

    • It involves creating classes and objects that encapsulate data and behavior.

    • Frameworks are pre-built structures that provide a foundation for building software applications.

    • Frameworks can include libraries, APIs,...

  • Answered by AI
  • Q7. Properties of java(object oriented languages)
  • Ans. 

    Java is an object-oriented language with features like inheritance, encapsulation, and polymorphism.

    • Inheritance allows classes to inherit properties and methods from other classes.

    • Encapsulation hides the implementation details of a class from other classes.

    • Polymorphism allows objects to take on multiple forms or behaviors.

    • Java also supports abstraction, interfaces, and exception handling.

    • Example: class Car extends Vehi...

  • Answered by AI
  • Q8. Normalization in DBMS (in detail with eg.)
  • Ans. 

    Normalization is a process of organizing data in a database to reduce redundancy and dependency.

    • Normalization is used to eliminate data redundancy and improve data integrity.

    • It involves dividing a database into two or more tables and defining relationships between them.

    • There are different levels of normalization, such as first normal form (1NF), second normal form (2NF), and so on.

    • Normalization helps in efficient data ...

  • Answered by AI
  • Q9. What is difference between ADBMS and DBMS?
  • Ans. 

    ADBMS stands for Advanced Database Management System which is an extension of DBMS with additional features.

    • ADBMS has advanced features like data mining, data warehousing, and online analytical processing.

    • ADBMS is used for handling large and complex data sets.

    • DBMS is a basic system for managing data and is used for small and simple data sets.

    • DBMS does not have advanced features like ADBMS.

    • Examples of ADBMS are Oracle, ...

  • Answered by AI
  • Q10. Your Introduction
  • Ans. 

    I am a software engineer with 5 years of experience in developing web applications.

    • Proficient in programming languages such as Java, Python, and JavaScript

    • Experience in developing RESTful APIs and microservices

    • Familiarity with front-end technologies such as HTML, CSS, and React

    • Strong understanding of database management systems like MySQL and MongoDB

    • Experience in Agile development methodologies

  • Answered by AI
  • Q11. Why u want do job?(why ur not doing post graduation?)
  • Ans. 

    I want to gain practical experience and contribute to the industry while also learning on the job.

    • I believe that hands-on experience is invaluable in the software engineering field

    • I am eager to apply my skills and knowledge to real-world projects

    • I am excited to work with a team and learn from experienced professionals

    • I am not currently pursuing post-graduation as I feel that gaining industry experience is more importan

  • Answered by AI
  • Q12. What will u do if ur from java background and company requires .NET peoples,not java peoples
  • Q13. Why this Company ?and some information about company( like achivements)

Interview Preparation Tips

Round: Test
Experience: Test contains 45 question having Maths(approx. 30 questions) , verbal & non-verbal , logical reasoning Qustions. 
1 hr to solve it.  And no negative marking .Easy aptitude test for me cause i hav given almost 8 apti tests before it. Most of the questions from R.S. Agarwal (Quantitative Aptitude)Book. we total 40 to 50 peoples given the test(All branch students eligibal for test above 60 % aggregate)
Duration: 60 minutes
Total Questions: 45

Round: Technical Interview
Experience: Out of 40-50 peoples appeared for aptitude test 12 students were eligibal for technical interview. Interview was in the Company . The interviewer ask the questions from the answers i am giving to his previous question .And trying to confuse me.
but after understanding my programming to his question and some logical answers to his qusetions he stops confusing  me. And go on saying 'You r correct or you r near to answer,think little bit more about it'.
Tips: Be confident , If u don't  know answer say that "i didn't brush up that topic". Don't go on interviwer's expression, they(expressions) always distract u.

Round: HR Interview
Experience: After 50-55 minutes of technical interview , we had HR interview.It was easy Interview,  all the 5 candidates have these same set of questions ,so we prepared the answers and all 5 got selected in company.

General Tips: Do aptitude test practice online more
Don't add things that u dont know in resume
(for freshers :keep resume exactly of 2 pages and simple,don't use different font  styles and size much)
Skills: Java programming, c++, sql(DBMS), Html
College Name: TERNA ENGINEERING COLLEGE
Motivation: It is college campus placement only, But The Representator of company(each) gives the motivation to all candiates mostly

Skills evaluated in this interview

I appeared for an interview in Sep 2019.

Interview Questionnaire 

1 Question

  • Q1. Pl sql related questions

Interview Preparation Tips

Interview preparation tips for other job seekers - y resume was referd through a guy. Later I got call from HR for interview schedule he asked me my expected ctc and Notice Period to which I clearly said 3 months. He scheduled my interview on weekends morning 8am I reached there by 8.30am The interview process got started late by 10am it was an walk in type interview 1 round was Technical I cleared that round and had a feedback session with HR he said we are processing u to next round which was Manager round there itself I told the HR my NP is 3months the Hr Told its not an issue.
Laterly after I had lunch by 2pm Hr came n told me that Manager is not available now so we will be conducting ur further round in weekdays.
Then there was no mail or call so I purposely mailed them still haven't got proper response from them, so at last I told my friend who referd me to ask for an update the same HR told him that they want Immediate joiner so we can't process him to further round. Wasted my whole day over there

I applied via Recruitment Consultant and was interviewed before Jan 2020. There were 5 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. What Prog Languages known? Prior Software Experience? How good on U.S. Client Face to Face and telephonic interaction for projects?
  • Ans. 

    I am proficient in Java, Python, and C++. I have 2 years of experience in software development. I have excellent communication skills for client interaction.

    • Proficient in Java, Python, and C++

    • 2 years of software development experience

    • Excellent communication skills for client interaction

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - I wasn't fluent or good in Programming languages but I was clear on the flowchart and the basic concept of OOPS. Also, I was confident about solving the scenarios given to me at interview rounds. I also had good experience in US customer handling over telephonic and Face to Face interaction.

I applied via LinkedIn and was interviewed before Feb 2021. There were 3 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. Just basic questions like Method overloading, riding Abstract and interface Use of static Etc..
Round 2 - Coding Test 

Basic Java programs related to string and array manipulation

Round 3 - Cliend Round 

(1 Question)

  • Q1. Jus basic questions related to Work culture and privacy

Interview Preparation Tips

Topics to prepare for Apexon Software Engineer interview:
  • Java
Interview preparation tips for other job seekers - Study basics to advanced iN Java

I applied via Recruitment Consulltant and was interviewed before Apr 2021. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. Different types of No SQL DBs
  • Ans. 

    NoSQL databases are non-relational databases that store and retrieve data in a non-tabular format.

    • Document-oriented databases (MongoDB, Couchbase)

    • Key-value stores (Redis, Riak)

    • Column-family stores (Cassandra, HBase)

    • Graph databases (Neo4j, OrientDB)

  • Answered by AI
  • Q2. Different types of scaling
  • Ans. 

    Scaling refers to the process of increasing or decreasing the capacity of a system to handle more or less load.

    • Vertical Scaling: Adding more resources to a single node

    • Horizontal Scaling: Adding more nodes to a system

    • Load Balancing: Distributing the load across multiple nodes

    • Database Sharding: Splitting a database into smaller parts to distribute the load

    • Caching: Storing frequently accessed data in memory for faster acc

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on Problem solving. Have a good understanding on main concepts of DSA. Java technical side is just as same as other companies. Also if you are applying for senior positions. Prepare for System Design rounds

Skills evaluated in this interview

Interview Questionnaire 

2 Questions

  • Q1. Basics from all framework you have worked on.
  • Q2. There working all are non technical people's they don't know the projects here major people working in testing and non related work

I applied via first naukari and was interviewed before Oct 2020. There were 4 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. A graph is stored in sql database. Questions was to find the shorted path between point A and B.

Interview Preparation Tips

Interview preparation tips for other job seekers - Interview was quite simple. Basics of python and database were asked and some problem solving questions.

Qualys Interview FAQs

How many rounds are there in Qualys Principal Software Engineer interview?
Qualys interview process usually has 3 rounds. The most common rounds in the Qualys interview process are One-on-one Round and Coding Test.
How to prepare for Qualys Principal Software Engineer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Qualys. The most common topics and skills that interviewers at Qualys expect are C++, Business Development, C, Linux and Linux Internals.
What are the top questions asked in Qualys Principal Software Engineer interview?

Some of the top questions asked at the Qualys Principal Software Engineer interview -

  1. Why looking for change ? What kind of work is there in qual...read more
  2. Was on sytem design. They asked to design s web crawl...read more

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Qualys Principal Software Engineer Interview Process

based on 1 interview

Interview experience

5
  
Excellent
View more

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Qualys Principal Software Engineer Salary
based on 23 salaries
₹32 L/yr - ₹51 L/yr
30% more than the average Principal Software Engineer Salary in India
View more details

Qualys Principal Software Engineer Reviews and Ratings

based on 4 reviews

2.9/5

Rating in categories

4.1

Skill development

2.7

Work-life balance

3.4

Salary

2.4

Job security

2.7

Company culture

2.5

Promotions

3.2

Work satisfaction

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