We build AI that
listens, evaluates, and coaches
Build Zeroist is creating the voice AI engine behind real-time assessments. Our first product, ZeroPitch, conducts live AI interviews that screen candidates in 10 minutes and deliver scored, evidence-backed reports. The same engine will power education, coaching, and professional development next.
Who We Are
Build Zeroist
Build Zeroist is a technology company headquartered in India, building a voice AI assessment engine that powers real-time, spoken evaluations across industries. Our flagship product, ZeroPitch, is a cloud-based SaaS platform that conducts live, voice-based AI interviews for hiring teams and job seekers globally.
Our mission is to make structured, evidence-based assessment accessible to everyone. We started with hiring because it is the most broken, highest-impact entry point. The same engine is being extended into education, exam preparation, language coaching, and professional training.
The Idea
First concept for a live, voice-based AI interviewer that could replace first-round screening entirely.
MVP Ready
Working prototype with real-time voice AI, adaptive questioning, and scored evaluation reports.
Full Product Launch (B2B)
Production-grade platform live for hiring teams. Pay-per-interview and Pro plans, 30+ evaluation dimensions, integrity detection, and evidence-backed reports.
B2C Launch
Opened the platform for job seekers with AI-powered mock interviews, IELTS preparation, and practice sessions across roles and industries.
Why Hiring First
Screening is broken, and it is the perfect proving ground
First-round interviews are the single biggest bottleneck in hiring. Every open role burns 10 to 15 hours of recruiter time on repetitive screening calls that never scale. It is high-frequency, high-stakes, and globally consistent, making it the ideal first domain for a voice AI assessment engine.
$4,700
Average cost per hire (SHRM), with screening as the most time-intensive stage
10-15 hrs
Spent per role on first-round screening interviews alone
0
Products on the market that conduct live, autonomous voice-based interviews
The Platform
One engine. Many products.
At the core of everything is a domain-agnostic voice AI engine powered by large language models. It handles real-time speech, adaptive dialogue, and structured scoring. We configure the same engine for different domains and audiences, and each new product shares the same infrastructure.
Voice AI Assessment Engine
The foundation of everything we build. A real-time voice pipeline combining speech-to-text, large language model reasoning, adaptive dialogue, structured scoring, and text-to-speech into a single, sub-700ms loop.
Products powered by the engine
B2B Hiring
Autonomous first-round screening for hiring teams. Role-specific interviews, 30+ evaluation dimensions, evidence-backed reports, and integrity detection.
Mock Interviews
AI-powered practice interviews for job seekers. Real-time voice conversations with instant performance feedback, coaching, and improvement tracking.
IELTS Speaking Prep
Band-score calibrated speaking practice. AI simulates the IELTS examiner, scores fluency, coherence, vocabulary, and pronunciation in real time.
UPSC Interview Prep
Personality test mock interviews with domain-specific questions. Feedback on content depth, articulation, composure, and current affairs awareness.
English Coaching
Conversational English practice for non-native speakers. Pronunciation feedback, fluency building, and confidence training through real dialogue.
Sales Training
AI roleplay for sales teams. Practice cold calls, objection handling, and negotiations with real-time coaching and performance scoring.
Who it serves
Hiring Teams
Screen faster, hire better
Job Seekers
Practice and get hired
Students
IELTS, UPSC, exam prep
Global Learners
English fluency coaching
ZeroPitch in Action
Three steps. Ten minutes. Done.
Here is how our flagship hiring product works today. From job description to scored candidate report, fully autonomous.
Configure Your Role
Paste a job description or define evaluation criteria manually. ZeroPitch generates a tailored interview with role-specific questions and scoring rubrics in seconds. Choose from 30+ competency dimensions or define custom metrics.
Candidates Interview
Share a link with candidates. They join a live AI voice conversation from any browser, on any device, on their own schedule. No downloads, no accounts, no scheduling. The AI adapts its questioning in real time based on candidate responses.
Review Scored Reports
Within seconds of interview completion, hiring teams receive structured reports with competency scores, evidence-backed ratings anchored to transcript excerpts, integrity signals, and a clear hire/no-hire recommendation.
Under the Hood
The engine that powers every product
A cloud-native voice AI pipeline delivering sub-700ms end-to-end latency. The same infrastructure runs hiring interviews, mock sessions, and every future product we ship.
Real-Time Voice Pipeline
Speech-to-text, large language model reasoning, and text-to-speech running in parallel. Sub-150ms per stage for natural conversational flow.
Cloud-Native Infrastructure
Deployed on Google Cloud with auto-scaling compute, WebSocket relay servers, and globally distributed edge delivery for low-latency access worldwide.
Advanced Language Models
Multi-model architecture combining frontier LLMs for interview reasoning with specialized models for evaluation, scoring, and integrity analysis.
Deterministic Scoring
Temperature-zero inference with structured evaluation rubrics ensures consistent, reproducible scores across all candidates for the same role.
Browser-Native Platform
Runs entirely in the browser with no plugins, downloads, or native apps required. Any modern browser on any device, anywhere in the world.
Global Availability
Accessible from any modern browser worldwide. No geographic restrictions, no on-premise requirements. Supports candidates and hiring teams in any timezone.
Business Model
Digital-native SaaS with usage-based revenue
Every product on our platform shares the same revenue model: usage-based pricing, self-serve checkout, no contracts, no on-premise deployments. As we launch new verticals, each one adds a revenue stream on the same engine infrastructure.
Pay-Per-Interview & Pro Plans
Our primary revenue today. Companies pay $8 per interview on demand, or subscribe to Pro at $250/month for 50 interviews. Enterprise pricing for high-volume teams. All plans include scored reports, transcript evidence, and integrity monitoring.
- Self-serve online signup and payment
- No long-term contracts required
- Usage scales with hiring volume
- Enterprise plans with custom evaluation frameworks
Practice, Prep & Coaching
Today: mock interviews for job seekers. Next: IELTS speaking prep, UPSC interview practice, and English coaching. Same engine, new audiences. Free 3-minute preview, then pay-per-session credits.
- Mock interviews live, IELTS & UPSC prep next
- Free preview, then per-session credits
- Instant performance feedback and coaching
- Mobile app planned for emerging markets
Founding Team
The people behind Build Zeroist
A focused founding team that built the entire voice AI engine, the hiring platform, and the infrastructure from scratch. Engineering depth meets go-to-market execution.
Ebenezer
Co-Founder & CEO
Full-stack engineer leading product, engineering, and technical architecture. Designed and built the entire ZeroPitch platform end-to-end, including the real-time voice AI pipeline, evaluation engine, scoring framework, and cloud infrastructure. Focused on shipping fast, maintaining product quality, and scaling the technology to serve customers globally.
LinkedIn
John Pollo
Co-Founder & COO
Leads business operations, growth strategy, and go-to-market execution. Responsible for B2B partnerships, B2C launch strategy, and expanding ZeroPitch to hiring teams and job seekers worldwide. Drives customer acquisition, market positioning, and operational processes that support global scale.
LinkedInRoadmap
From hiring to every spoken assessment
Hiring is where we prove the engine. Each new vertical reuses the same voice AI infrastructure with a new domain configuration. Here is the expansion plan.
10,000 interviews per month
Scale the B2B hiring platform and B2C practice product to 10K monthly interviews across industries. Expand self-serve acquisition, referral loops, and content-driven growth.
10K interviews/mo
IELTS & English coaching
Launch AI-powered IELTS Speaking test preparation. Real-time voice practice with band-score feedback, pronunciation coaching, and fluency analysis. Helping non-native English speakers build confidence and improve scores.
1.4B non-native English speakers globally
UPSC interview preparation
AI mock interviews for UPSC Civil Services personality test. Domain-specific question banks, structured feedback on content depth, articulation, and composure. Contributing to nation-building by democratizing access to quality preparation.
1M+ UPSC aspirants annually
Mobile app launch
Native mobile app for iOS and Android. Practice interviews, IELTS prep, and coaching sessions on the go. Push notifications, offline report access, and session history.
Mobile-first for emerging markets
Sales & negotiation training
AI-powered roleplay simulations for sales teams. Practice cold calls, objection handling, and deal negotiations with real-time coaching and performance scoring.
B2B SaaS training market
Multi-language support
Expand beyond English to support Hindi, Spanish, French, and Arabic interviews. Opening the platform to non-English-speaking markets and enabling truly global hiring.
4.5B people in target language markets
The universal assessment layer
Become the intelligent voice layer that powers structured assessments across hiring, education, coaching, and professional development. From screening to final round, from IELTS to MBA admissions, one engine for every spoken evaluation.
Every industry, every geography
See the engine in action
Try a live AI interview yourself. No signup required. Experience the voice AI that powers everything we build.