Structural Engineer Interview Questions UK: 8 Real Questions and What Interviewers Want

Before your Structural Engineer interview, it helps to see the questions from the interviewer's side. We have picked eight from our set of 25 and added the reason each one gets asked.

Eight Structural Engineer interview questions, and what the interviewer is thinking

1. Talk me through a structure you have designed and what your personal contribution was.

Why they ask: They want to understand the scale of work you have genuinely owned and how you describe your own technical decisions.

2. What does a typical day as a structural engineer involve for you?

Why they ask: They want to see you understand the balance of calculation, drawing review, coordination and site work.

3. How would you design a simply supported steel beam, and what checks are involved?

Why they ask: This is a bread-and-butter structural task; they want to hear a methodical, complete set of checks.

4. How do you decide on the lateral stability system for a multi-storey building, and how do you make sure it is robust?

Why they ask: Stability is fundamental and often a weak area for less experienced engineers.

5. What do you consider when designing a reinforced concrete flat slab, particularly around columns?

Why they ask: Flat slabs are very common in UK buildings and punching shear is a classic check.

6. A homeowner wants to remove a load-bearing wall in a two-storey house to create an open-plan space. How would you design the solution?

Why they ask: Residential alterations are the most common work for many structural engineers and the answer shows practical thinking.

7. How would you approach the design of a masonry wall subject to wind loading, such as a gable or a freestanding wall?

Why they ask: Masonry design is common in UK housing and low-rise work, and lateral load behaviour is a typical question.

8. You visit site and find that a contractor has already removed a load-bearing wall without a beam in place or any structural calculation. What do you do?

Why they ask: This tests how you respond to an immediate structural safety risk and then manage the aftermath.

A sample answer to question 1

Talk me through a structure you have designed and what your personal contribution was.

I was the lead designer on a four-storey office extension in steel and composite deck. The building was tight on a city centre site, so the brief was a lightweight frame that could be built quickly with minimal crane time. I developed the scheme with the architect, set the column grid, chose the beam depths to suit the ceiling void, and designed the lateral stability using braced bays around the core. I did the main frame in Tekla Structural Designer, hand-checked critical members, and prepared the calculation package and drawings. A key decision was switching two long-span beams to cellular beams so services could pass through, saving about 150 millimetres per floor. My calculations were independently checked by a colleague, and I attended site to review the steel connections. The building came in on programme, and I learnt the value of agreeing structural zones with the architect early.

Common mistake to avoid: Using 'we' so your role disappears; describing the building but not the engineering reasoning

Want the rest?

Full model answers, key points and common mistakes for all 25 questions are on the Structural Engineer interview questions page. The first five are free, no sign-up needed.