Unfortunately, evaluations do not end when you take the last exam of your degree Now you will have to answer correctly many software developer interview questions to be able to get a job position in the company you have dreamed about.
Although all companies have their own manual when hiring, here we have tried to gather the most common questions that are asked to a software developer during the hiring process, so you have an idea of what you are going to face.
Common software developer interview questions
Almost all the questionnaires of technology companies include basic questions to warm up and know if the candidate is suitable. But even when those are the ABC of software developing, you must be prepared.
Why did you want to be a software developer?
The most common and direct answer should be that you love coding. The paycheck of a software developer is always great, but you must emphasize your passion and deep focus for ongoing projects.
Describe the software development process.
The software development process is composed of:
- Requirement analysis
- Software architecture
- Training and support
Describe the development methodology that you’re familiar with
There is not a single answer to this question: the hiring criteria will be that the candidate aligns with the organization’s work environment and process. Answers like Agile, Waterfall or Hybrid development methodology are desirable, but mostly you will need to adapt your answer to the specific methodology of the company you are trying to get into. Nevertheless, Agile is the most common way to deal with software development.
What is Agile software development process?
This approach is based on iterations rather than the Waterfall model. It implies the collaboration between self- organizing and cross- functional teams and the end users of the software. Agile software development process encourages a more flexible planning style and a fast response to changes.
It requires open- minded software developers that can see flaws in the process and provide feedback to evolve the project.
Describe the difference between computer software and a computer program
A computer program is a programming code that executes a well-defined task. Computer software involves not only programming code, but also documentation and user guide.
Main technical questions
In a second step, you must face some more technical stuff. You must also be prepared to do some coding if asked.
What process do you use to test and find bugs in software?
Every software developer has a favorite process and debugging tools. If you write great code and also make sure that debugging is part of the process, you are on.
Which design patterns have you used?
A software developer who is just pretending would say that he used all design patterns. That is a terrible answer. It is better to talk about the ones that you have practically used, being Singleton, MVC, Template pattern and Iterator, or other. Be honest.
Are you familiar with multi-threading?
If you want to improve the performance of software, multi-threading is a right method to do so. It is a process that runs a snippet of code simultaneously in each processor. Therefore, it stops code from hanging when it runs and improves speed.
What MVC stand for?
MVC is Model – View – Controller, a way to split code into its own compartments:
- Model is the data layer that maintains data and manages business logic.
- View is the UI layer, the front-end presentation
- Controller is the layer that process user behavior and requests and then updates the model.
Are you familiar with Object- Oriented analysis and design?
OOP is the nucleus of the main programming languages such as Java, C++, C# and VB. Good software developers should then be skilled in OPP, a process that use classes to describe the components of a given program.
Do you know about ORM?
Object- relational mapping (ORM) is the use of code to map database tables. It turns tables into classes for LINQ queries. Hibernate is the most popular ORM framework.
What is Big-O notation?
Big-O or Landau´s symbol describes in computer science the performance or complexity of a given algorithm, how runtime or space requirements of a function grows as the input increases. Two functions that possess the same Big-O notation will have the same growth rate and relative performance. Then, each algorithm will fall into one of these performance classes:
- Constant- time
What language do you prefer to code?
Again, each developer has a different viewpoint and a preferred programming language, so be sure to state which ones you are capable of. The choice of preferred language for complex algorithms might vary. It is best that those are within the job requirements, and be prepared to demonstrate your skills in a short coding test like Fizzbuzz using your programming language of choice.
It seems trivial, but it measures your ability to work under pressure, tests your educational foundations and your experience coding. It is also helpful to differentiate your set of skills.
Psycological questions on a software developer interview
Not everything is code related during a software developer interview. You need to prove, in addition to the knowledge to do the job, the ability to interact with other software developers, as well as passion, creativity and commitment.
Are you working in a project in your spare time?
Any great software developer should improve his skill set continuously exploring projects on his own. This question is focused on your passion and your ability to learn new things.
So answer it talking about a side project you’re developing and stress the reasons why that project is important to you. If possible, try to connect it with the job you’re interviewing for.
How you will manage to overcome a conflict with another software developer?
Depending on the company you want to work with, software development positions could be individual or team-based. In an organization that relys on team work, you should be able to demonstrate that you work well with others.
The best answer is to describe a real situation that happened and show the thought process and approach that you used to solve the conflict.
Have you face obstacles in a software development project? How did you deal with them?
It is important to be honest about this matter, since no software development project goes as easy as the developer wants. It’s okay to admit that you have faced failures, but most important is to highlight that you had learned from that bad experiences.
Questions to be a software developer manager
Maybe the company is looking for a software developer manager, so you also must be prepared to answer these questions. Of course, a position like this has lots of responsibilities, but it will explode your career and salary.
Where do you want to get with your career?
There is no right or wrong way to answer this question. You should be honest and reflect on what are you looking for in your career. If you want to move into management, just say it. If the company is looking for a software developer manager rather than someone that works independently, is better to let them know that you are a team worker.
What kind of development are you skilled with?
Your employers are looking for candidates who can outline the work they have already done. They want potential employees able to explain the business reasoning behind their work. For instance: if you have worked in developing an ecommerce application, you need to take into account details like how orders are processed and a proper track of the customer information.
Had you face a difficult software development problem in the past? How you solved it?
This is a good opportunity to go deep into a software development problem that you had faced, especially if the solution had come through team work. In the end, all software development involves teams, and organizations are looking for people that fit and can lead.
What are the main aspects to take into account when reviewing the code that a team member wrote?
This question is focused on your knowledge, attention to details and problem solving skills. A good answer will be looking at first for security, then functionality and finally readability. Even when each software developer has its own style, there are also requirements that need to be fulfilled. When reviewing the code of a programmer, the software developer manager should check if:
- Software passes automated and manual tests.
- Code is easy to understand and follows the company conventions
- Code is not duplicated.
- Boolean variables are not negatively named
- There no memory leaks
- Blocks of code inside loops are as small as possible
So, these are some software developer interview questions that you will face, but more research is needed. Beforehand, you should know which area of expertise the company requires and try to understand the languages and technical stack of the company you’re interviewing with.
Read carefully over the job description for clues into the technical skills you should be prepared and good luck.