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Project Engineer Interview Questions

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Indeed’s Employer Resource Library helps businesses grow and manage their workforce. With over 15,000 articles in 6 languages, we offer tactical advice, how-tos and best practices to help businesses hire and retain great employees.

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Whether you are preparing to interview a candidate or applying for a job, review our list of top Project Engineer interview questions and answers.

  1. What are the duties of a project engineer? See answer
  2. What is a feasibility study? See answer
  3. How do you ensure accuracy and consistency throughout a project? See answer
  4. What do you think is the key to good team development? See answer
  5. How do you report and communicate technical concepts to non-tech people? See answer
  6. How would you compress the schedule of a project? See answer
  7. Can you explain the Pareto principle? See answer
  8. Do you know what reserve analysis is, and can you explain it? See answer
  9. During the project initiation, what documents do you need? See answer
  10. How do you keep your team motivated? See answer
  11. When executing a project, what is your leadership style? See answer
  12. What is your conflict management strategy? See answer
  13. Explain work breakdown structure (WBS) and how it affects work estimates for tasks.
  14. What techniques do you use to collect a project’s requirements?
  15. How do you identify the parties concerned and why do you need to know them?
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Our mission

Indeed’s Employer Resource Library helps businesses grow and manage their workforce. With over 15,000 articles in 6 languages, we offer tactical advice, how-tos and best practices to help businesses hire and retain great employees.

Read our editorial guidelines

15 Project Engineer Interview Questions and Answers

What are the duties of a project engineer?

The project engineer plans and coordinates projects and is responsible for adhering to standards, budgets and deadlines. The candidate should know and understand the duties of the role. What to look for in an answer:

  • Knowledge of technical roles
  • Knowledge of project engineer role
  • Acknowledge duties performed by the project engineer
Example:

'The duties of a project engineer include prioritising and organising tasks of a project and creating a timeline. They ensure the project meets its deadlines and milestones. Also, they confirm that legal requirements are met, identify project problems and lead the team in developing and implementing solutions. The project engineer liaises with third parties, runs meetings and maintains team activities.'

Explain work breakdown structure (WBS) and how it affects work estimates for tasks.

Work breakdown structure breaks tasks down to a granular level and is a regular function of project management. The candidate should discuss the structure of WBS and how it works. What to look for in an answer:

  • Ability to prepare WBS plans
  • Desire to work on tasks at a granular level
  • Familiar with project management tools
Example:

'The WBS aligns project plans by combining the project scope, schedule baseline and cost. The deliverable-based WBS outlines the relationship between a project deliverable, such as a product and the scope, such as the work it takes to make the product. The phase-based WBS shows the deliverable at the top of the chart and has more elements to track, each with a specific deliverable. The purpose of a WBS is to make the project easier to manage, refine specific project requirements and show the difference between the project plan and the reality of the project's progress.'

What is a feasibility study?

Feasibility studies show how beneficial and practical a project and its deliverable are to the company. This question gives you insight into whether the candidate knows the aspects of a project that are included in a feasibility study. What to look for in an answer:

  • Aware of areas to be studied
  • Identifying projects to be studied
  • Knowledge to create a feasibility study 
Example:

'A feasibility study determines if it's realistic to develop a new product by studying the operational, technical, and economic practicality of developing it. The feasibility study analyses whether the product will meet the company's requirements, if it can be implemented with current technology and within budget and if it can be integrated with current products. The study ends with a written report and recommendations that usually include changes such as budget, schedule and scope.'

How do you ensure accuracy and consistency throughout a project?

Project engineers are responsible for the materials, people and success of projects. Your candidate should describe strategies ensuring accuracy and consistency to give you insight into their experience. What to look for in an answer:

  • Attention to detail  
  • Organised mindset
  • Methods of record-keeping 
Example:

'Accuracy and consistency can be obtained by defining, committing to and controlling the quality of the project. It's vital to focus on the project's requirements and processes, stick to them and constantly monitor them. Keeping excellent records and documentation is key. To start the project, there must be a defined project management process, tools, framework and software and a definition of how the project will be managed. Employee training and monitoring are vital, as they provide everyone with the templates and tools they need and ensure they're always used.'

What do you think is the key to good team development?

Teamwork is fundamental since project engineers work with all levels of involved parties. A good candidate shows collaborative problem-solving skills. What to look for in an answer:

  • Leadership and coordination skills 
  • Ability to clearly define expectations
  • Collaborative problem-solving and delegation 
Example:

'I think the key for team development is gathering the right people. There should be an experienced leader, an assistant leader who is a well-liked team member and advisor to the leader and a middle manager. The team should comprise members who want to do their best, work hard and have trust in each other and the team's goals. Commitment is also a key factor, and the team should commit to the mission of the project and to each other.'

How do you report and communicate technical concepts to non-tech people?

Project engineers spend most of their time with tech-savvy people but must communicate with various involved parties. The candidate should discuss their methods of presenting complex material to others. What to look for in an answer:

  • Communication and interpersonal skills
  • Ability to determine the best communication methods
  • Ability to explain technical concepts to non-tech people
Example:

'Involved parties must have a clear understanding of technical tasks, so I communicate with presentations, analogies and by using familiar words. I give context, keep it short and use metaphors. I judge the audience and determine how my tone and style will be interpreted by them and try not to use unnecessary words or technical jargon.'

How would you compress the schedule of a project?

Project engineers must adhere to timelines and schedules regardless of delays. This question gives you insight into the candidate's understanding and methods of compressing projects. What to look for in an answer:

  • Methods to compress schedules
  • Adhering to schedules and timelines
  • Understanding of fast-tracking and crashing
Example:

'If the project was behind schedule, I'd use the crashing method to compress the schedule. Meaning, I'd shorten the schedule by adding more resources such as overtime, monetary rewards and people or equipment. Another way I might compress a schedule is by fast-tracking, where I'd implement activities in parallel for a short time instead of executing tasks in sequence.'

What techniques do you use to collect a project's requirements?

The project engineer collects the requirements that define the scope of the project. The candidate should have detailed knowledge of this essential duty. What to look for in an answer:

  • Collection process
  • Knowledge of the components of requirements 
  • Hands-on approach to implement project requirements
Example:

'Project components include the business, involved parties and solution requirements. Others are project requirements, transition requirements and requirement constraints and assumptions. Requirement collection includes gathering data, for instance, through focus groups, surveys and brainstorming. Other steps are data analysis through assessing the project documents, observing and monitoring team member performance and developing an affinity diagram. It's important to prioritise the requirements and develop a prototype for the involved parties to review and receive their feedback.'

Can you explain the Pareto principle?

Also known as the 80/20 principle, the Pareto principle groups the frequency of occurrences and shows that each action produces a reaction. The candidate should explain the Pareto principle and its structure. What to look for in an answer:

  • How to implement Pareto
  • Understanding 80/20 analysis
  • Knowing how it determines success or failure
Example:

'Pareto analysis is structured as a chart that groups the frequency of specific occurrences, meaning that 20% of our activities produce 80% of the results. To succeed, we should gather data and identify what actions the 20% represents, then focus on those and determine the improvements that will benefit our business.'

Do you know what reserve analysis is, and can you explain it?

Reserves are what project engineers use to accommodate risks that can impact a project. An important part of project planning, your candidate should explain reserve analysis in their project planning strategy. What to look for in an answer:

  • Identifying at-risk activities
  • Understanding reserve analysis
  • Knowledge of two kinds of reserves 
Example:

'Two types of reserve analysis help mitigate risks to a project. A contingency reserve is a time cushion, and a management reserve represents extra funds to handle unforeseen risks. If a software developer estimates that a project will take a week but states it could take 10 business days, the three days' difference is the contingency reserve. If a construction site's ground-breaking is estimated at £200,000, but later it's found that there are problems that increase the price by £40,000, it means that £240,000 would be needed, requiring a management reserve.'

How do you identify the involved parties and why do you need to know them?

The project engineer identifies key involved parties at the beginning of a project. Candidates should recognise these decision-makers and explain why they're important. What to look for in an answer:

  • Involved party analysis
  • How to identify key involved parties
  • Understanding why they're important
Example:

'Key involved parties can be identified with a few questions. For instance, who is furnishing funds, supplying resources and who are the end-users for the project deliverable? Others are easy to identify, such as your manager, shareholders, customers, and key advisors. Basically, the project should meet the objectives of the key involved parties. The analysis of involved parties is grouping them by those who must be kept satisfied or informed, actively managed, or minimally monitored. This prioritises their position in the project and helps us develop strategies for engaging them.'

During the project initiation, what documents do you need?

Various documentation and tools are needed for the initiation phase of a project. Candidates should know what those documents are and verify all are collected. What to look for in an answer:

  • Knowledge of required documents
  • Knowledge of project management requirements
  • Ensuring that documents are collected and on file
Example:

'The required documents include a business case document that represents a purpose for the project, an agreement or signed contract and a project charter that outlines objectives and represents a formal authorisation for the project. Other documents include a register that details the involved parties' interests, engagement and powers.'

How do you keep your team motivated?

One of the project engineer's main responsibilities is motivating their team. The candidate should discuss their strategy for motivating staff. What to look for in an answer:

  • Motivation strategies
  • Knowledge of core responsibilities
  • Understanding the fundamentals of motivation 
Example:

'To motivate my team, I ensure they have relevant tools, receive clear communications and get feedback. I provide a culture they can enjoy, use public recognition, and ask for and respond to feedback. I try to provide paths for advancement and personalise motivation. For instance, one team member may want constructive criticism, while another may need ongoing encouragement. I also use incentives such as cash rewards, office lunches or time off.'

When executing a project, what is your leadership style?

A project engineer must be a leader, support their team through adversity, and create a team spirit. The candidate should explain their preferred leadership style. What to look for in an answer:

  • Leading by example
  • Preferred leadership style
  • Understanding leadership styles
Example:

'I most often use a democratic leadership style and allow various team members to participate in the decision-making process. Sometimes I use an autocratic style when fast decisions must be made and clear boundaries need to be set.'

What is your conflict management strategy?

Among groups of people working together, it's not unusual for conflicts to occasionally happen. The project engineer is in charge and should have successful strategies for dealing with conflict. What to look for in an answer:

  • Problem-solving
  • Analytical thinking
  • Conflict management 
Example:

'I negotiate between conflicting parties to agree on a solution acceptable to all, I may temporarily compromise so work continues. I always plan to find a permanent solution and keep things safe, calm and not take conflict personally. I approach conflict from a collaborative point of view.'

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