Run System Design Interviews with Live Diagrams
A system design interview tool lets senior candidates sketch and discuss architecture in real time. TechInterview.live is a system design interview tool with an embedded Excalidraw canvas, real-time collaboration, and a Monaco code editor in the same workspace — from €2.50 per live interview, with no setup for the candidate, and we don't retain your candidates' data.
What is a system design interview?
A system design interview is a crucial part of evaluating senior-level engineers. It focuses on architecture, high-level components, and the trade-offs involved in building scalable and reliable software systems.
Why whiteboards fail remotely
Most teams use generic whiteboarding tools like Miro or FigJam. While powerful, they often lead to:
- Context Switching: Candidates have to keep switching between the whiteboard and their code or notes.
- Friction: Setting up a shared board can be complex.
- Lack of Collaboration: It's hard to see the candidate's mouse or where they're focusing.
A better way: live diagramming + coding
TechInterview.live is a **system design interview tool** that brings architecture and code together. Our embedded Excalidraw canvas allows you and the candidate to sketch architectures without ever leaving the interview workspace. No need to switch tools or prepare separate sessions.
- Full Excalidraw Integration: The tool you already know, built directly into your session.
- Real-Time Collaboration: See exactly what they draw, when they draw it.
- Zero Friction: No copy-pasting or session preparation required.
- Integrated with Google Meet: Conduct your entire session within your call.
Evaluate real-world engineering skills
Evaluating senior candidates is about more than just drawing boxes. It's about architecture, tradeoffs, and communication. TechInterview.live is the **system design interview tool** that provides the right environment for these deep-dive discussions.
Frequently asked questions
Can I draw architecture diagrams?
Absolutely. The integrated Excalidraw canvas is built specifically for system-design sketches with real-time collaboration.
Is this better than generic whiteboards?
Yes, because it's real Excalidraw integrated directly into your interview workspace. No tabs to switch, and no need to prepare or copy-paste boards between sessions.
Can I combine coding + design?
Yes. You can switch between the Monaco code editor and the diagramming tool instantly within the same session.
How much does it cost?
From €2.50 per live interview session, pay-per-session with one-time credit packs and no subscription.
Do candidates need to prepare anything?
No. Candidates join with a shared link in the browser — no accounts, downloads, or session setup required.