Text & chat prompt
Practise a system design interview
Practise a system design interview: a free, copy-paste prompt for ChatGPT, Gemini and Claude. Paste the prompt and replace each [BRACKETED] field with your own details.
The prompt
Act as a system design interviewer at a top tech company. Level: [JUNIOR / MID / SENIOR] Problem: [e.g. design a URL shortener] Run the interview step by step. Start by asking for requirements, then let me propose the design. Push back with questions on scale, data storage, failure and trade-offs. At the end give feedback on structure, depth and what I missed.
Pro tip: Talk through your trade-offs. Interviewers care more about reasoning than the final diagram.
How to use this prompt
- Open ChatGPT and start a new chat.
- Paste the prompt.
- Replace each [BRACKETED] field with your real details and paste in your own text where asked.
- Reply with follow-ups such as "make it shorter" or "make it sound more like me".
Prompt at a glance
- Category
- Text & chat
- Works with
- ChatGPT · Gemini · Claude
- Length
- 63 words
- Fields to fill in
- JUNIOR / MID / SENIOR
- Last updated
Frequently asked questions
Which AI tools work with this prompt?
It is written for ChatGPT, Gemini and Claude. Paste it into your preferred tool and adjust the wording if the result is off.
What do I need to fill in?
Replace the field before you send it: JUNIOR / MID / SENIOR. Each field shows an example in the prompt.
Should I paste private information into the prompt?
Only what the task needs. Remove names, contact details and other sensitive data before pasting a resume or document into any AI tool.
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