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      Javascript Engineer Interview

      17 Apr 2025
      Anonymous interview candidate
      No offer
      Negative experience
      Average interview

      Application

      I applied online. The process took 4 weeks. I interviewed at Constructor in Apr 2025

      Interview

      I went through 7 interviews, only to receive a generic rejection with no feedback, which I find unacceptable after such a time investment. Overall, the interviewers were polite, respectful of time, and came across as professional. However, the process felt very rigid and overly scripted, it lacked any natural flow or human connection, which made it difficult to build real rapport. The technical challenges during the virtual onsite didn’t seem closely related to the actual responsibilities of the role. They felt more like generic assessments rather than tasks that would reflect day-to-day work. Also, during these exercises, the interviewers remained completely silent. This created an uncomfortable atmosphere, rather than a collaborative or pair-programming-like environment, it felt cold and overly evaluative. It’s clear that the team is trying to follow a structured process, but in doing so, they’ve lost a sense of human interaction that’s key to evaluating mutual fit.

      Interview questions [3]

      Question 1

      What is closure, what is promise, generic js knowledge questions that you are not supposed to memorize but they ask anyway
      Answer question

      Question 2

      build a deck of cards shuffle, deal
      Answer question

      Question 3

      implement a react component to show charts
      Answer question
      3

      Other Javascript Engineer interview reviews for Constructor

      Javascript Engineer Interview

      28 May 2025
      Anonymous interview candidate
      No offer
      Negative experience
      Average interview

      Application

      I applied online. I interviewed at Constructor in May 2025

      Interview

      Interview Process: There were 7 interviews in total, covering a mix of live coding, engineering best practices, and cross-functional interviews with teams like Customer Success and Product. The process moved quickly between each step, and communication from recruiting was clear and timely — up until the very end. 1. Engineering Manager: Introductory conversation covering topics like general JavaScript knowledge and architectural decisions. 2. Code Pairing #1: Two parts — first, scraping an HTML file to retrieve product IDs and count. Second, use a simple Node.js app to send data from a CSV file to Constructor’s API. 3. Customer Success: Questions about how you interact with non-technical stakeholders and real clients. More behavioral than technical. 4. Code Pairing #2: Build and manage a deck of cards. Questions followed about improvements and handling scenarios like API-based state and concurrency. 5. Engineering Best Practices: Situational questions on architecture, caching, cookies vs. localStorage, and bot detection techniques. 6. Product Interview: This was the least engaging part of the process. Interviewers didn’t take time to create a rapport, questions were vague and felt poorly structured. The experience felt rushed and unclear. 7. Code Pairing #3: Transform a simple React app into a tabbed interface. Completed it quickly, so I was asked to improve it. An error occurred in the final minutes, but the interviewer acknowledged it was not critical and likely just a typo. Final Thoughts: After a very demanding process and multiple hours dedicated to this opportunity, I received a generic rejection email three business days later, with no feedback whatsoever. I understand not every candidate moves forward, but after so many interviews, I would have appreciated at least a sentence or two about what didn’t align — especially after investing this much time and energy. It felt disrespectful and disappointing to be left with zero insights on what could be improved. If you're applying here, be prepared for a long and thorough process — but also be aware that you may get no feedback, no matter how far you go.

      Interview questions [1]

      Question 1

      What is a closure? How do you detect if an element is in the viewport? What would the server look at to detect bots vs humans? What is the difference between cookies and localStorage? How do you handle team disagreements?
      Answer question
      3

      Javascript Engineer Interview

      23 Dec 2024
      Anonymous interview candidate
      No offer
      Positive experience
      Average interview

      Application

      I applied through an employee referral. The process took 2 weeks. I interviewed at Constructor in Dec 2024

      Interview

      I had two interviews. The first was a screening interview, where I learned about the company and the role, and talked about my experience. The second was a one-hour pair programming session with two engineers from the team. I was given a task to solve within a set time and was allowed to use google search for syntax and ask questions. Afterward, I was asked about my approach to the solution and whether I would make any changes. After each interview, I was given time to ask questions as well. The interviews were excellently organized. The interviewers were friendly and supportive, guiding the entire process smoothly and offering assistance whenever I encountered difficulties.

      Interview questions [3]

      Question 1

      Explain JavaScript concepts like Closures, Promises, and others.
      Answer question

      Question 2

      Create a recursive function to calculate the sum of numbers in a list.
      Answer question

      Question 3

      Data manipulation tasks (shuffle, sort, build) using JavaScript.
      Answer question

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