How do you handle not knowing something in an interview or on the job?
Answer
Be direct
I say clearly when I don’t know something: “I haven’t worked with that” or “I’m not familiar with that yet.” I avoid guessing or overstating my experience; honesty builds trust and avoids misalignment.
Show how I’d learn
I describe how I’d get up to speed: “I’d start with the official docs and a small proof of concept,” or “I’d look for similar patterns in what I’ve used before.” On the Invest Planning Platform, I learned LangChain/LangGraph, AWS services, and regulated AI flows on the job—I explain that process and the outcome.
Connect to what I know
When relevant, I tie the unknown to what I do know: “I haven’t used X, but I’ve used Y, which solves a similar problem,” or “I’d approach it like how I integrated third-party APIs—auth, retries, error handling.” That shows transferable skills.
Ask good questions
Instead of pretending to know, I ask: “Can you clarify what you mean by X?” or “What’s the main use case you have in mind?” That turns gaps into learning opportunities and keeps the conversation productive.
On the job
I treat unknowns as normal. I research first, try a small experiment, then ask for feedback or pairing if I’m stuck. I document what I learn so others benefit later.
Interview angle
- “What do you do when you don’t know something?” - say so, then describe how you’d find out. Interviewers are testing honesty and method. Bluffing is the failure; “I haven’t used that, but here’s how I’d approach it and what I’d compare it against” is a strong answer.
- “How do you learn something under time pressure?” - narrow it to what the task needs rather than reading everything. Official docs first, then a small spike to validate understanding, then the parts you actually use in depth.
- “How do you handle not knowing in front of the team?” - the same way. Senior engineers admitting gaps openly is what makes it safe for everyone else, and pretending is how bad decisions survive review.
- “During this interview, if I ask something you don’t know?” - the same again: say you don’t know it, then reason out loud about where you’d start and what related thing you do know. That’s usually worth more than a memorised answer.