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      Starling

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      Senior IOS Engineer Interview

      May 27, 2025
      Anonymous interview candidate
      London, England

      Other Senior IOS Engineer interview reviews for Starling

      Senior IOS Engineer Interview

      Oct 11, 2022
      Anonymous interview candidate
      London, England
      No offer
      Negative experience
      No offer
      Neutral experience
      Average interview

      Application

      I applied through an employee referral. The process took 5 weeks. I interviewed at Starling (London, England) in Mar 2025

      Interview

      I appreciated the opportunity to interview with Starling and found the overall process to be well-organised. However, I was disappointed with how the final stage was handled. While the earlier stages were clear and professional, the last interview felt somewhat one-sided. The questions were mostly open-ended, and although I gave technically accurate answers, even going beyond what was asked at times, I felt the feedback I received didn’t fully reflect my performance. It seemed that rather than digging deeper or asking follow-up questions, assumptions were made based on delivery or interpretation rather than technical correctness. Additionally, there didn’t seem to be a genuine effort from the final interviewers to get to know me beyond the technical side. Cultural fit is important, and I was surprised that I wasn’t asked any questions to assess this properly, despite it being mentioned in the feedback. Overall, I left the process feeling that the evaluation was more subjective than I had expected. I still respect the company and its mission, but I believe the interview experience could be improved, particularly in terms of fairness and communication at the final stage.

      Interview questions [1]

      Question 1

      * Typical `well known` technical challenge which contains `Round Up` feature. * Questions about Swift and using optionals in Swift. * Questions about RxSwift. * Questions about concurrency.
      Answer question
      avatar
      Starling response
      10mo
      Thank you for taking the time to leave us a review. We are sorry to hear that you did not have a positive experience at the final stage of your interview process- we will take your feedback onboard. Please contact us by emailing careers@starlingbank.com if you would like to discuss further.
      Average interview

      Application

      I applied through a recruiter. I interviewed at Starling (London, England) in Oct 2022

      Interview

      Interview process is comprised of an initial technical screening video call, a take home assignment, a follow-up technical discussion on it and finally a cultural fit interview. During the initial technical screening I was asked to give an overview of my work experience, reasons for looking for a new job and motivations for applying for the role. The take home assignment was very time consuming (several hours) and would honestly not do it again. Next company that asks me to complete one will get a hard pass.

      Interview questions [7]

      Question 1

      What is a piece of code you are proud of?
      Answer question

      Question 2

      What would you do differently in your current or past project?
      Answer question

      Question 3

      What got you the most excited about the latest WWDC?
      Answer question

      Question 4

      What is difference between escaping and non-escaping closures?
      Answer question

      Question 5

      What is the difference between value and reference types?
      Answer question

      Question 6

      Describe how the responder chain works in an iOS application.
      Answer question

      Question 7

      What are some security best practices for iOS apps?
      Answer question
      4
      avatar
      Starling response
      3y
      Thank you for taking time to leave a review. We appreciate your feedback and are sorry to hear that you had a negative recruitment experience with us this time around. If you would like to discuss further, please email us at careers@starlingbank.com.