Our venturesAI & HR TechLive SaaS Venture · In Production
JustInterview.aiProprietary venture deep-dive

We engineered JustInterview.ai to eliminate screening bottlenecks across our own 110+ engineering pods. Today, it runs 24/7 on-camera AI interviews, in-browser Vibe coding sandboxes, and automated candidate scorecards for startups and global enterprises.

JustInterview.ai Autonomous AI Hiring Platform
Autonomous screening engine· always on
110+ Pods
Team Scaled
Hired our own engineering team first
70% Faster
Time-to-Hire
28 days reduced to 4 days
10,000+
AI Sessions
Interviews & coding tests evaluated
99.4%
Integrity Defense
Sandboxed anti-cheat accuracy
VentureJustInterview.ai
SectorAI & HR Tech · Technical Hiring Platform
GenesisBuilt to hire our own 110-person team, then productised
StatusLive Global SaaS (justinterview.ai)
ArchitectureWebRTC Video/Audio · Docker Sandboxes · FastAPI · Next.js
Why We Built It

Hiring 110 engineers through fragmented multi-tool hiring stacks drained tech lead bandwidth and slowed delivery. Here is what broke.

Bottleneck 01

The 500-Resume Screening Drain on Tech Leads

Senior engineering leads were spending 25+ hours every week manually skimming resumes across LinkedIn, Naukri, and email. Over 75% of applicants lacked fundamental stack proficiency.

Engineering Impact:Stalled sprint velocity and cost ~120 engineering hours per open role.
Bottleneck 02

Unstandardized First Rounds & Scheduling Friction

Initial 45-minute technical screeners suffered from subjective interviewer bias, scheduling bottlenecks across time zones, and inconsistent evaluation criteria that let good engineers slip through.

Engineering Impact:Average time-to-hire dragged out to 28 days with high candidate drop-off.
Bottleneck 03

LeetCode Memorization vs Real AI-Assisted Engineering

Traditional platforms (HackerRank, Codility) tested isolated algorithmic puzzles in artificial zero-AI environments — failing to evaluate how modern developers actually build software using AI tools.

Engineering Impact:Candidates aced trivia but struggled to architect production web systems.
Vibe coding assessments

Candidates get a built-in AI copilot for the whole session. Code correctness, runtime performance, and prompt architecture are graded together.

Stage 01Production System Challenges

Real distributed problems with automated test harnesses instead of LeetCode trivia.

Stage 021ms Sandboxed Execution

Sub-millisecond container runtimes with strict zero-network isolation policies.

Stage 03Vibe AI Prompt Telemetry

Prompts to the built-in AI copilot are graded for engineering judgment vs blind pasting.

96% Evaluation Accuracy1ms Sandbox Latency
JustInterview.ai Vibe AI Coding Assessment Environment
Official Assessment Interface · 3-Panel Split100% In-Browser
System architecture

A session does not move through media, then execution, then evaluation — all three run at once and have to agree at the end. Select a plane to read what makes it difficult and the property it is not allowed to break.

Input Session

Candidate Joins

Single browser connection streaming audio, video & IDE input.

WebRTC A/VMonaco EditorKeystrokes
3 Planes Run ConcurrentlySelect to inspect
Reconciled

Signed Dossier

Immutable audit score sent directly to ATS.

SHA-256 Verified
Sandbox Execution Plane:Spins up an isolated container per test run with a read-only root, 128MB memory cap, and strict syscall filters.
Untrusted candidate code cannot reach the host or internal networks.
Objective Scorecards

System architecture, code quality, problem-solving, and communication collapsed into a single defensible scorecard.

Multi-Dimensional Candidate Dossier & Evaluation Radar
Scorecard #4892 · Verified
RM

Rohan Mehta

Staff Backend Architect

Overall Bar Fit94.2%
Recommended for Final Offer
Objective Competency Scoring vs Benchmark:
System Architecture
(Bar: 70%)95%
Code Quality & AST
(Bar: 65%)92%
Problem Solving
(Bar: 68%)94%
Communication Clarity
(Bar: 72%)96%
AI Tool Leverage (Vibe)
(Bar: 55%)91%
Anti-Cheat & Integrity Forensics
Tab Switch Count:0 (Zero Excursions)
Dual Monitor Anomaly:None Detected
Audio Background:Normal Home Office
Code Keystroke Audit:100% Typed & Synthesized Live
Overall Integrity Rating:99.8% Confirmed Authentic
End-to-End ATS & CRM

One unified system replacing 6 disparate recruitment tools. See how 342 applicants convert into 4 accepted offers.

342 applied. Humans met 3.

6 of 7 stages run without a person
  1. Deep semantic parsing scores 500 resumes against core stack criteria with full explainability.

    87 Screened (Top 25%)

The steep drop happens in the first two stages, and it happens in minutes — which is why the panel round is three people in a room rather than a quarter of the intake.

Venture Telemetry

Measured across 10,000+ candidate sessions and our own 110-person engineering team scaling cycles.

Hiring MetricTraditional Multi-Tool StackJustInterview.ai PlatformImprovement
Time-to-Hire (Engineering)28 Days4 Days-85.7%
Tech Lead Screening Hours25 hrs/week1.5 hrs/week-94.0%
First-Round ConsistencySubjective (62%)Objective Rubric (98.4%)+36.4%
Cheating & Proxy DetectionManual / Bypassed99.4% Sandboxed DefenseZero Proxies
Candidate Completion Rate44% (Long delays)88.6% (24/7 Scheduling)2x Completion
Venture ROI
70%
Faster Time-to-Hire Across 110+ Engineering Pods

Built to hire our own 110-person engineering team without recruiter sprawl, then productised into a live global SaaS platform.

4 Days
Average Cycle
From application to offer letter
120 hrs
Hours Saved
Per tech lead every month
96.2%
Offer Acceptance
Driven by fast candidate feedback
10,000+
Sessions Run
Live on justinterview.ai

JustInterview.ai is available globally as self-serve SaaS with flexible solo, team, and enterprise tiers. Live plans and trials are published on justinterview.ai.

The live product

This page is the engineering account — the architecture, the evaluation core and the decisions behind them. The product itself, with current plans and a live demo, lives on its own site.

What JustInterview.ai delivers

  • Bulk Resume Fit Scoring (500 resumes in < 2 mins)
  • Adaptive On-Camera AI Video Interviews (24/7)
  • Vibe AI In-Browser Code Sandboxes & Test Runners
  • Anti-Cheat Forensics & AST Keystroke Verifiers
  • Multi-Campus Recruitment Drive Management
  • Automated Offer Letter & Approval Workflows