Software Engineer (Internship) Interview Experience - San Jose, California
Process
Two phone interviews. In first interview, I had resume walkthrough and discussed technologies used in the projects, reasoning for choice of technology (Comparison questions like SOAP vs REST, MongoDB vs MySQL) etc. Asked basic questions over Java OOP concepts and data structure questions on Array, String Manipulation and Linked Lists. Interview ended with an implementation of a Data structure question related to string.
Questions
How would you return the middle element from a linked list where the length of the linked list is not given?
Return the length of the longest unrepeated substring.
Explain how garbage collection works in Java.
How would you identify a missing integer in 1-100 in an unsorted array of 99 elements?
Was this helpful?
Interview Statistics
The following metrics were computed from 1 interview experience for the Qualys Software Engineer (Internship) role in San Jose, California.
Success Rate
Qualys's interview process for their Software Engineer (Internship) roles in San Jose, California is extremely selective, failing the vast majority of engineers.
Experience Rating
Candidates reported having very good feelings for Qualys's Software Engineer (Internship) interview process in San Jose, California.
Qualys Work Experiences
- 3.0Good learning experienceSoftware Engineer (Internship) • Former EmployeeFoster City, CaliforniaOctober 16, 2025Pros: Was first internship, good environment for learningCons: Most of the work was fairly simple, did not allow for more complex projects
- 1.0Good office location, but toxic culture and long hoursDirector Engineering • Former EmployeePune, IndiaMay 26, 2026Pros: The office location is good, nothing else.Cons: 1. Worst office culture 2. Anytime layoff, even within 2 months or before 1 year, so that they can save their ESOP (stocks given to employees) because for ESOP, the minimum locking period is 1 year. They do layoffs before one year. 3. Anytime work, people normally work 9 AM to 11 PM. Because their office in the West US, so they need to overlap till 11PM. 4. There is no obligation to work on Sat/Sun. Anybody in the company can call you, and it's usual for them.
- 5.0GoodSoftware Engineer • Former EmployeeFoster City, CaliforniaSeptember 20, 2024Pros: I love Qualys because everyone is nice.Cons: There is no con here, and it is a very good company.
