A practice prompt we wrote. No company or candidate report names it, so it carries no company tag.
How to answer
This call is the job, so answer with criteria, not a preference. As of September 2026, Ramp’s Core posting says FDEs specialize in one core product area and decide when to build a custom solution and when to speed up a broader initiative. Source 1Software Engineer, Forward Deployed @ RampPublisherRamp (Ashby job board)Source typecompany job posting Vinoo Ganesh, who led Palantir’s rotation that turned software engineers into FDEs, wrote in Latent Space in September 2026 that the engineers who mattered weren’t those who shipped the most for customers but those who came back and changed what was built. Source 2The Rise of the Forward Deployed Engineer — and How To Do the Job RightPublisherLatent SpaceSource typenews report OpenAI’s head of FDE, Colin Jarvis, said in an Altimeter interview in November 2025 that generalizing too early was the biggest mistake his team made that year. Source 3Colin Jarvis | Head of Forward Deployed Engineering at OpenAI: Trust. Product. Impact.PublisherAltimeter Capital (YouTube)Source typerecorded talk or interview
Give your criteria out loud, in this order.
- Who else has the need. Customers you can name, from tickets, other deployments and the account team.
- Urgency here. What breaks for this customer, and by when.
- What custom costs to keep alive. Who owns it after you leave, and whether it forks core logic or sits on an extension point.
- Fit with where the product is going. Ask the product manager; don’t infer it.
Then say how the answers decide it. Unique and cheap: build it custom on an extension point, time-boxed, and don’t take it to product. Shared but not urgent: don’t build it; take the evidence to the product team. Shared and urgent: split it, with custom code for what is theirs and the shared part built for the product to lift. Name in advance what moves a custom build into the product: a second customer asking, or maintenance past a limit you set.
The trap is answering with an identity, “customer first” or “always fix the product”, and one story that fits it. A slogan can’t show that your judgment would work on the next request.
Follow-ups
What the interviewer may ask next, once your first answer is on the table.
- The product team says no, and the customer needs it next month. What do you do?
- Who maintains your custom build a year after you’ve moved to another account?
- How would you know you had generalized too early?
Where answers go wrong
- Answering with an identity (“I always put the customer first”) instead of criteria someone else could apply to the next request.
- Arguing for a product change with one customer’s anecdote, when the product team needs to see who else has the need and what it costs them to wait.
Answer this in two minutes
Write the answer you would say out loud. The clock starts with your first word.
Illustrative answer about a fictional project
“I use four questions: who else has the need, how urgent it is for this customer, what the custom version costs to keep alive, and whether it fits where the product is going. Different answers give different calls.