System Architecture

Deep-dive into the low-latency infrastructure powering our real-time Logic Rooms.

01 / Synchronized WebRTC Media Mesh

Traditional interview tools rely on sluggish, high-latency third-party wrappers. We engineered a custom WebRTC selective forwarding unit (SFU) mesh to handle multi-party video, audio, and state synchronization across participants with sub-50ms latency.

02 / gVisor Isolated Execution Sandboxes

Every line of code executed during an evaluation runs inside a secure, containerized sandbox using gVisor isolation kernels. This prevents container breakout risks while executing multi-language runtimes (Python, TypeScript, Rust) instantly.

03 / Tamper-Evident Evidence Ledgers

Every keystroke, execution output, and whiteboard stroke is cryptographically timestamped and serialized into an immutable ledger, preventing post-session tampering and providing recruiters with replayable proof.