1,000 Candidates Screened Daily: Voice Bot Scales High-Volume Recruitment
Key Metrics
1k
Candidates screened daily — 10x human capacity.
88%
Interviews completed autonomously with auto-retries.
INDUSTRY
Staffing & Recruitment
SERVICES
GenAI
— Agentic AI
Application Development
— Full-Stack Web Platform
DELIVERABLES
AI Voice Screening Bot
Real-Time Speech Processing Layer
Call Orchestration & Retry Engine
ATS Integration & Webhook Pipeline
AI Governance & Evaluation Framework
Overview
Deployed an AI voice screening bot for a fast-growing recruitment platform that autonomously interviews 1,000 candidates daily, conducting structured assessments and delivering instant pass/fail verdicts. Recruiters were freed entirely from first-round screening, cutting cost-per-screen by 65%.
The Challenge
High-volume hiring teams were bottlenecked by manual phone screens — with hundreds of applications arriving daily, human recruiters could only reach a fraction of candidates, causing multi-week delays and losing top talent to faster-moving competitors.
No mechanism existed to standardise screening quality at scale — inconsistent follow-up questions, missed ATS updates, and recruiter burnout left pipeline data unreliable and hiring velocity unpredictable.
Solution
Deployed an AI-driven voice bot that autonomously calls candidates within business hours, conducts structured 7-question screening interviews with contextually selected follow-up questions, and delivers an instant pass/fail verdict removing recruiters entirely from first-round screening.
Built a real-time speech processing layer using OpenAI GPT-4o Mini for transcription and low-latency TTS, with noise handling, partial transcription recovery, and automatic resume of interrupted interviews across up to three call attempts.
Integrated directly with the client's ATS via webhooks to push live candidate status updates — pass, fail, or incomplete — and surface only pre-qualified candidates to recruiters for final-stage engagement.
Embedded AI governance with guardrails for abusive language and consent refusal, plus prompt versioning, LLM-as-judge evaluation, and human review loops to maintain screening integrity at production scale.
Value Delivered
#01
1,000 candidates autonomously screened per day without adding headcount — hiring capacity scaled to match application volume for the first time.
#02
Recruiters fully redirected from first-round calls to final-stage interviews with candidates already scored and ranked.
#03
Complete audit trail per candidate with timestamped transcripts, retry history, and ATS-synced status — giving hiring managers real-time pipeline visibility.
Key Metrics
1k
Candidates screened daily a 10x increase over previous human screening capacity.
88%
Of interviews completed without recruiter involvement, with automated retry logic recovering incomplete calls.
65%
Reduction in cost-per-screen compared to manual or outsourced first-round screening.
