Jan 15, 2019

Common Interview Questions for Programmers and How to Answer Them

Computer programmers have bright prospects on the job market. Because a wide variety of organizations use websites and applications in their day-to-day operations, people with coding skills can take their pick of different industries. If you've already completed the Intro to Programming Nanodegree program, built up a portfolio, and sent out applications for programming jobs, then you've already completed the first steps in achieving your dream career. Still, before you can get hired and get to work doing what you love, you'll need to go through some job interviews. Read on to learn more about common interview questions and how you should answer them.

What Programming Languages Do You Know, and Which Do You Prefer?

This question is meant to get an idea of your skills in the field and how they fit into the company. Much as spoken languages have major differences between them, programming languages have different structures and are applicable to different kinds of work. Answer this question honestly, and outline your experience with each of the languages you know. Most importantly, let your passion for your work shine, especially if the interviewer asks you about your favorite languages. Offer a few details about why you like them and how you've used them in projects in the past.

How Do You Approach New Projects?

Programming a new website or application from start to finish is a big task. When interviewers ask this question, they not only want to get an idea of how you work, but also want to see if you can take charge of a project and see it as a whole. Show your ability to break down tasks and visualize different stages of your creations.

How Do You Test Your Projects?

Programming is more than visualization and entering code. Once you've progressed on a project, you have to make sure it works. As is the case with the previous question, interviewers want to get an idea of your working process and how it fits into the rest of the team. Use lots of concrete examples to emphasize what you know and how you think.

How Do You Troubleshoot Problems and Bugs?

No matter how perfectly you plan your projects, there will always be issues you'll have to tackle. Interviewers want to get a good idea of your problem-solving skills and see how you can work under pressure. To go the extra mile with this question, give real-life examples of how you've fixed bugs in the past, and stress how you can work well within a tight time frame, as interviewers will probably want to know that you can meet deadlines.

What Skills Have You Learned Recently?

Programming is a dynamic field that is forever evolving, and interviewers want to know that you can keep up to date with new trends in the field. To ace this question, demonstrate your knowledge of newer languages and technological trends. This is the perfect opportunity to mention your Udacity Nanodegree program or your passion projects outside of work.