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      Senior Software Validation Engineer Interview

      28 Mar 2026
      Anonymous interview candidate
      Farnborough, Hampshire, South East England, England
      Declined offer
      Negative experience
      Easy interview

      Application

      I applied through a staffing agency. I interviewed at MDA (Farnborough, Hampshire, South East England, England) in Mar 2026

      Interview

      I recently interviewed with MDA Space (formerly SatixFy) for a Senior Software Validation Engineer position, and unfortunately, the overall experience was disappointing and unprofessional. The process began with a short initial call (around 20–40 minutes) with Will Stancer. The call felt poorly structured and lacked clarity. I was asked a few basic questions about my experience, including a very elementary question about the difference between a list and a tuple in Python. While I provided a clear explanation, there was no discussion about the expectations of the role, the required technical expertise, or even a proper overview of the position or the company. The conversation felt unprepared and did not reflect a senior-level opportunity. The following day, I was invited for an on-site interview at their Farnborough office. Upon arrival, I was taken to a meeting room where the interview was conducted by the validation lead. The this test lead took multiple phone calls during the interview and spoke in Hindi in the meeting room while I was present, without stepping out. This even occurred while reviewing my answers after the written test. This behaviour was highly unprofessional and made the interview feel disorganised and disrespectful of the candidate’s time. The technical assessment consisted of a sheet of basic, unstructured questions (not even numbered), covering very fundamental programming concepts such as: Definitions of inheritance, polymorphism, and encapsulation Explanation of __init__() Differences between lists, tuples, and dictionaries Mutable vs immutable types Simple examples A basic missing number puzzle While I completed all the questions, none of them were relevant to software validation, test engineering, or the responsibilities expected from a senior role. The level of questioning was far below what I would expect for this position. More concerning was the discussion about their testing practices. From my questions, I gathered that: They rely on a single server for regression testing, which takes about a month per run There appears to be no clear understanding of Hardware-in-the-Loop (HIL) testing within the team There is no evident Software-in-the-Loop (SIL) regression pipeline There is no proper test management or traceability system in place For a company working in satellite communications, this lack of testing maturity and industry-standard practices was quite surprising. Overall, the interview process did not reflect a well-organised engineering team or a clear understanding of software validation at a senior level. It seemed they were primarily looking for basic Python knowledge rather than someone with experience in structured, industry-standard validation practices.

      Interview questions [5]

      Question 1

      Define and explain the following concepts with examples: Inheritance Polymorphism Encapsulation
      Answer question

      Question 2

      What is the purpose of the __init__() method in Python?
      Answer question

      Question 3

      Define the following data types in Python: List, Tuple, Dictionary
      Answer question

      Question 4

      What is the difference between mutable and immutable data types?
      Answer question

      Question 5

      Given the following array of integers: 4, 5, 2, 6, 1, 8, 3 Identify the missing number in the sequence.
      Answer question