/Biochemical Engineer/ Interview Questions
JUNIOR LEVEL

Tell us about a problem you encountered during a project and how you resolved it.

Biochemical Engineer Interview Questions
Tell us about a problem you encountered during a project and how you resolved it.

Sample answer to the question

During a project I worked on in my previous role, I encountered a problem when our experiment results did not match our expected outcomes. This was a challenge because it meant we had to re-evaluate our approach and find a solution. To resolve the problem, I took the initiative to conduct a thorough analysis of the experiment procedure and identified a possible source of error. I then proposed a revised experimental design to my team, which was based on my analysis and additional research. We implemented the new design and conducted the experiment again, this time yielding the expected results. This experience taught me the importance of thorough analysis and problem-solving skills in resolving unexpected challenges during a project.

A more solid answer

During a project I worked on in my previous role, we faced a problem when the yield of our desired compound was lower than expected. To understand and resolve this issue, I first reviewed the experimental procedure and data, looking for any anomalies or errors. I noticed that one step in the procedure involved a specific temperature range, and upon further investigation, I found that the equipment used to maintain this temperature was malfunctioning. I immediately informed my team and we decided to replace the equipment. After the replacement, we ran the experiment again and achieved the expected yield. This experience highlighted the importance of attention to detail, critical analysis, and quick problem-solving in resolving issues during a project.

Why this is a more solid answer:

The solid answer provides more specific details about the problem encountered, the candidate's analysis of the situation, and the steps taken to resolve it. It also emphasizes the importance of attention to detail, critical analysis, and quick problem-solving. However, it can still be improved with more emphasis on the candidate's analytical skills and the impact of their solution on the project.

An exceptional answer

During a project I worked on in my previous role, we encountered a problem with the stability of an enzyme in a bioreactor system. The enzyme was crucial for the bioconversion of a specific substrate into a valuable product. We noticed that the enzyme activity was decreasing over time, leading to lower product yields. To tackle this issue, I conducted a comprehensive literature review to understand the factors that could affect enzyme stability in a bioreactor. Based on my findings, I proposed the addition of a stabilizing agent into the reaction mixture to mitigate the enzyme degradation. I collaborated with our team's biochemists to design and optimize the stabilizer concentration and treatment strategy. We also implemented regular monitoring of enzyme activity and stability throughout the project to ensure sustained performance. As a result of this solution, we were able to maintain high enzyme activity and achieve the desired product yields. This experience showcased my ability to research, analyze scientific literature, collaborate effectively, and implement practical solutions to complex problems.

Why this is an exceptional answer:

The exceptional answer provides specific details about the problem encountered, the candidate's research and analysis, collaborative efforts, and the long-term impact of their solution on the project. It demonstrates the candidate's ability to research, analyze scientific literature, collaborate effectively, and implement practical solutions to complex problems. However, it can still be further improved by including the outcomes and benefits of achieving the desired product yields.

How to prepare for this question

  • Review your past projects and identify any challenges or problems you encountered.
  • Reflect on the steps you took to resolve those challenges and the impact of your solutions.
  • Brush up on your knowledge of biochemical processes and laboratory techniques.
  • Familiarize yourself with relevant software used in the biochemical industry.
  • Practice discussing your problem-solving and analytical skills in relation to your past projects.

What interviewers are evaluating

  • Problem-solving skills
  • Analytical skills

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