Interview Companion

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About Interview Companion

Interview Companion is a desktop application for Mac and Windows that provides real-time AI assistance during technical interviews. It captures system audio and optionally screen content, then streams generated answers to a paired iPhone or browser in under a second. The tool builds a personal profile from a user’s CV, projects, and STAR-formatted behavioral stories, which it uses to tailor responses that reflect the user’s actual experience rather than generic LLM output. Answers are generated locally on the user’s computer and only relevant context is sent to the model provider, maintaining privacy while ensuring up-to-date responses. The application supports coding rounds via screenshot-based problem solving, system design interviews with structured outlines, behavioral rounds using personal stories, and recruiter screens with targeted talking points. Sessions are synced between devices, allowing the interviewer to see the candidate’s natural thought process rather than a pre-written script.

Key features

  • Local system-audio capture without virtual drivers
  • Auto-selection of relevant profile fragments per question
  • Screenshot-based coding problem solving with edge-case notes
  • STAR-formatted behavioral story integration
  • Cross-device session synchronization
  • Always-fresh model routing via backend
  • Built-in transcript and answer history storage
  • Vision model integration for code solutions

Use cases

  • Coding interviews with LeetCode-style problems
  • System design rounds with structured outlines
  • Behavioral interviews using personal STAR stories

Pros

  • Local-first architecture keeps all raw data on the user’s computer
  • Builds a personalized profile that evolves with each interview
  • Supports both audio and visual input for comprehensive context
  • Streams answers to paired devices in real time
  • Handles coding, system design, and behavioral rounds

Cons

  • Requires paired iPhone or browser for answer display
  • No native mobile app for Android
  • Limited to Mac and Windows platforms

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Frequently asked questions about Interview Companion

What is Interview Companion and how does it work during a real interview?

Interview Companion is a desktop application for Mac and Windows that provides real-time AI assistance during technical interviews. It captures system audio and optionally screen content locally on your computer, then streams generated answers to a paired iPhone or browser in under a second. The tool uses a personal profile built from your CV, projects, and STAR-formatted behavioral stories to tailor responses that reflect your actual experience.

Who should use Interview Companion?

Interview Companion is designed for engineers preparing for technical interviews, including coding rounds, system design interviews, behavioral rounds, and recruiter screens. It is particularly useful for senior engineering candidates looking to adapt their responses to their own background rather than generic LLM output.

Does Interview Companion send my interview data to the cloud?

No. Interview Companion operates as a local-first application, meaning all audio buffers, screen pixels, profile data, and transcripts stay on your computer. Only the transcribed question text, relevant profile fragments, and cropped question screenshot (in vision mode) are sent to the AI model provider for processing.

How does Interview Companion maintain privacy during interviews?

The tool ensures privacy by keeping raw microphone and system audio buffers, screenshots, and session transcripts on your local device. Only the transcribed question and selected profile fragments are forwarded to the model provider, and all communication is secured with TLS encryption.

Can Interview Companion help with different types of interview rounds?

Yes. Interview Companion supports coding rounds via screenshot-based problem solving, system design interviews with structured outlines, behavioral rounds using personal STAR stories, and recruiter screens with targeted talking points. It adapts to the specific needs of each interview stage.

How do I get started with Interview Companion?

To get started, download the application for Mac or Windows from the official website, create an account, and upload your CV, projects, and STAR-formatted behavioral stories to build your personal profile. The tool then uses this profile to tailor responses during mock or real interviews.

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