In full-stack technologies, technical interviews are the final barriers for most full-stack software developers before accepting a job offer.
Each stage of the hiring process serves a specific purpose: phone screens determine general fit. Interpersonal skills are assessed through behavioral interviews. Checking your references reveals how you’ve handled stress, conflicts, and teamwork. Full-stack technical interviews assess how well your programming talents meet the needs of the firm and the duties of the post.
Fortunately, things have altered dramatically in recent years. Instead of the old-school Google brain puzzles (such as “How many golf balls could fit in this room? “), You’re more likely to get a take-home assignment or have a collaborative conversation if you whiteboard “Hello, World!” in 10 languages. These are assessments that more closely mimic the kind of work you’d be doing if hired in your full-stack developer interview round.
Interviewers are rooting for you to succeed. Hiring you allows them to return to their real occupations, the organization becomes more productive, and everyone benefits financially and professionally.
Get the valuable basics right for the interview
Interviews are about demonstrating what you can do, rather than telling someone what you can accomplish.
Step #1: Be prepared for the Interview
The plan should be the same no matter what your interviewer asks you; understand the problem, design a solution, explain it, and implement it. To put it another way, being a good engineer is the greatest way to prepare for your interview. That isn’t to say you shouldn’t prepare for a technical interview with some homework. Begin by looking through the company’s stack. If it’s a Ruby shop, you should be familiar with the language. Use StackShare and any company-owned public GitHub repositories to figure out what languages and libraries they’re utilizing.
Dress comfortably and professionally whether you attend the office or video chat in from home. If your shoes are too tight or you’re concerned about a sloppy collar, you won’t be able to think clearly.
Once you’ve started, remember that if you freeze up, make a mistake, or don’t know an answer, you can just be honest and admit it. Don’t be concerned about wasting time or seeming stupid. If you need a moment to think, take it and then rejoin the conversation.
Discuss the issue with your interviewer, ask questions, and reconsider your strategy. This is similar to showing your work on a test for half credit, and it can help you out.
How to Prepare for (and Ace) 4 Types of Technical Challenges
Not every full stack developer technical interview is conducted in person. Some of these don’t even require coding. It all depends on the business and the position.
Each of the four types of examinations analyses various skills you’ll need on the job, so you’ll need to approach and prepare for each one separately.
1. Exercise in Live Coding
The classic technical interview looks like this: Within 30 or 40 minutes, you will have written working code.
If you’re given some faulty code, for example, you’ll need to find the bug, fix it, pass the test suite, and then explain what you did. You’ll most likely be requested to modify something minor in this type of technique, which is popular among Test-Driven Development (TDD) teams. It’s basically a duo programming activity. Your interviewer may be present in the room with you or participate by video chat from afar. You’re unlikely to have access to your ideal development environment, which adds to the stress. You could have to work with a limited Integrated Development Environment (IDE) or a strange laptop.
Even if you can’t fix the bug, your method is important. When you’re stuck, ask questions and explain your strategy to the interviewer.
2. Homework Assignment
Take-home tests provide all of the advantages of the real world, including access to Google, Stack Overflow, and your own computer, while still assessing your programming abilities. You prepare for them in the same way that you would for live coding, but you’ll deliver your work in a different way.
For instance, you might be requested to read a brief product specification and develop a Sudoku validator with a test suite. You’ll organize a meeting to present your work after you’ve submitted your code. Validating Sudoku boards isn’t tough, but how you do it reveals a lot about how you think about problems, follow directions, and interpret criteria.
Companies usually give you a set amount of time to complete your take-home assignment, whether it’s a deadline (present your code within three or four days) or a time limit (complete the task in no more than 4 hours). Give yourself time to evaluate and modify your work in either situation, just as you would if you were writing a critical report or sending a private email.
Remember that there is no “correct” method to solve a problem, however, the interviewer may be interested in your knowledge of specific ideas and will likely inquire about them throughout the interview.
3. Design Problem
Practical exams include live coding and take-home tasks, but theoretical tests are also popular. That’s where having a whiteboard comes in handy.
You’ll be given some broad boundary conditions (for example, make it web-based and text-only) and an initial prompt, such as “What kinds of data will you need to manage and how would you model it?” You’ll have to design something—perhaps a messaging application—and you’ll be given some broad boundary conditions (for example, make it web-based and text-only Your interviewer may gradually broaden the scope of your questions, asking you to consider the interface, networking, and refactoring as you progress from a simple notion to a full-fledged software, based on your responses.
4. Trivia Contest
It doesn’t matter if you have 10 months or 10 years of experience at some companies—all it’s about the fundamentals. And nothing is more fundamental than computer science knowledge.
Smaller businesses, where the tech stack is limited and new workers must hit the ground running, are the most likely to have language-specific queries. This can be difficult if you’re new to the language, but as Juan Müller, lead engineer at Greenhouse, points out, “what interviewers are looking for is your ability to reason about code, even if you’re not prolific in the language in which you’re being tested.” Most languages will use similar constructs, and logic will remain constant.”
If you have more experience, your full stack developer technical interviews will have a slightly different purpose. Employers will look at how adaptable you are, how current your abilities are, and how well you fit in with the team.
Although uncomfortable, a brief technical interview—in whatever shape it takes—can spare you and your employer months of frustration due to misaligned expectations. So figure out what kind of obstacle you’re up against, do your homework, go in confidently, use what you’ve studied and prepared for, and leave knowing you gave it you’re all!