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AI Voice Assistant for Candidate Pre-Screening

Automate your hiring funnel with an AI-powered HR solution that screens candidates in minutes — asking smart, bias-free questions, scoring answers, syncing with your ATS, and scheduling interviews. Built by a leading HR software development company, this HRMS software development case shows how AI voice technology transforms recruitment efficiency.

Let’s Build Your Solution
5–7 min

Average candidate pre-screen duration with our AI HR Assistant — cutting manual screening time by up to 80%.

24/7

Always-on availability through our AI-powered HR solution, ensuring instant response and zero candidate drop-off.

15+

Supported languages — enabling global human resource management software development and multilingual HR automation.

5+

ATS

Greenhouse
Lever
iCIMS
Workday
SmartRecruiters

Ready-made AI HR Solution

Remove friction in first-round interviews. Start instantly with an AI Voice HR Assistant or schedule automatically.

Streamline your hiring process with an AI-powered HR solution built through advanced HRMS software development. The assistant qualifies candidates via voice or chat, runs adaptive Q&A, and provides next steps in real time — fully integrated with your ATS and HR systems.

    • Candidates apply by voice or chat; the AI HR Assistant manages adaptive interviews, evaluates responses, and suggests next actions instantly.

    • Centralized workspace for instant screening, interview scheduling, and policy FAQs — powered by human resource management software development best practices.

    • No back-and-forth emails: automated scheduling and smart reminders simplify HR coordination.

AI HR Assistant
HRMS Software Development
HR Automation
Remove friction in first-round interviews. Start instantly with an AI Voice HR Assistant or schedule automatically.
01

Problem

Recruiters spend hours managing repetitive, manual tasks that slow down hiring.
Traditional tools lack automation, creating fragmented experiences across systems.



  • Slow time-to-first-touch and back-and-forth interview scheduling

  • Inconsistent screening notes and missed knockout criteria

  • Repetitive policy or benefits questions that drain recruiter time

  • Scattered candidate data across ATS, calendars, and emails — no unified HRMS software development backbone

Problem
02

Challenge

Plavno’s client needed to modernize recruitment operations using an AI HR assistant integrated with existing human resource management software. The goal: accelerate screening without losing accuracy or fairness.



  • Accurate Extraction of candidate data (skills, location, authorization, compensation) through AI-powered HR solutions.

  • Fairness & Compliance: bias-aware interviews aligned with EEOC, GDPR / CCPA, TCPA standards.

  • Smooth UX: instant interviews, self-serve rescheduling, clear consent flows

  • Reliability & Scale: multi-region hiring, multi-role screening, high-volume campaign spikes — handled via robust HR software development services.

Challenge

AI-driven HR software development

Solution

The client needed a scalable, intelligent hiring platform that could pre-screen inbound applicants automatically — reducing recruiter load and ensuring consistency across roles and regions. Plavno delivered a modular AI-powered HR solution developed through advanced HRMS software development services, combining conversational AI, RAG-grounded responses, and ATS integrations into one unified human resource management ecosystem.

Product Highlights

    • Adaptive AI screening with dynamic branching per role, seniority, and language

    • Knockout logic (authorization, shift preferences, time zones) with configurable messaging

    • RAG-based FAQ engine answering policy, role, and benefits questions in real time — built with AI HR assistant logic

    • ATS-ready: create/update candidate records, notes, scorecards, and statuses seamlessly

    • Omnichannel access — web widget, career site, phone (SIP/IVR), WhatsApp, SMS, or in-app chat — ensuring a frictionless experience for global teams

User Flows

    • Apply Now: candidate joins → AI HR Assistant runs pre-screen Q&A → scores → routes → confirms → syncs with ATS

    • Schedule Only: choose time slot → auto calendar invite + reminders → prefilled notes in recruiter dashboard

    • Escalation: recruiter receives flagged cases with transcripts, structured scoring, and recommendations

Experience & Scale

    • Sub-second conversational latency even on low-bandwidth networks

    • Accurate recognition of accents, slang, and code-switching for diverse candidate pools

    • Lightweight SDK / embeddable widget enables fast rollout across multi-region HR environments

Architecture Overview

Deep Dive: Project Architecture for AI-Powered HR Solutions

Built as a scalable, real-time infrastructure, this system demonstrates how AI HR assistants can seamlessly integrate into enterprise-grade human resource management software development environments.
 

    • Clients: Web (React) and Mobile (React Native) widgets; telephony (SIP / IVR); WhatsApp / SMS

    • RTC / Media: WebRTC for voice; signaling over WebSocket; fallback to PSTN / IVR

    • ASR: streaming recognition with partial / final hypotheses & punctuation

    • NLU & Policy Engine: dialog graph (e.g., LangGraph); slot extraction for skills, tenure, authorization, comp, availability

    • RAG: vector store + re-ranking over JDs, benefits, visa & location policies, leveling, process docs; answers cite sources

    • Scoring: per-role rubric weights & thresholds with explanation logging

    • ATS: Greenhouse / Lever / Workday / iCIMS / SmartRecruiters connectors

    • Scheduling: Google / Microsoft 365; round-robin, buffers, SMS / Email reminders

Deep Dive: Project Architecture for AI-Powered HR Solutions

Challenges

Hard Problems We Solved in HRMS Software Development

Fair, Consistent Scoring

Fair, Consistent Scoring

Implemented rubric-based evaluation with explanation logging, reviewer override, and audit trails — ensuring fairness and transparency across interviews. Our AI HR assistant standardizes scoring across roles and reduces human bias.

Resume & Narrative Parsing

Resume & Narrative Parsing

Used advanced NLP and AI-powered HR solutions to convert unstructured candidate answers into structured skill, experience, and tenure data with confidence scores. Enables recruiters to make data-driven hiring decisions faster.

Scheduling Complexity

Scheduling Complexity

Automated time-zone handling, round-robin assignment, buffers, and rescheduling — all fully integrated into the human resource management software development workflow. Reduced manual coordination by up to 70%.

Network Resilience

Network Resilience

Engineered tolerance to packet loss, state re-sync, and safe fallbacks for low-bandwidth regions. Ensures uninterrupted candidate sessions — a key component in scalable HR software development services for global hiring.

Value & Benchmarks

Quality & Fidelity 

Horizontal scaling with consistent accuracy across every hiring scenario — from entry-level to executive searches

Live Transcripts & Notes

Live Transcripts & Notes

AI-driven streaming transcripts with structured fields automatically synced to ATS scorecards — improving visibility across teams and enhancing HRMS software development reporting accuracy

Instant Channel Switching

Instant Channel Switching

Candidates can switch seamlessly between voice, chat, or video with no context loss — powered by AI-powered HR solutions for uninterrupted experience

Roles & Moderation

Roles & Moderation

Candidate, recruiter, and coordinator roles operate with full context and permissions, ensuring audit-ready workflows — a hallmark of enterprise-grade human resource management software development

Context & Domain Adaptation

Context & Domain Adaptation

RAG-enhanced context engine keeps industry-specific terms, acronyms, and compliance language accurate across roles and regions — ideal for scaling AI HR assistant deployments globally

Benchmarks

Scale & Reliability

Robust infrastructure for peak performance, low latency, and enterprise-grade availability

Elastic Horizontal Scaling

Elastic Horizontal Scaling

Automatic scaling of ASR, NLU, and RAG nodes to handle hiring surges — key to reliable HR software development services

Isolated Sessions & Throttling

Isolated Sessions & Throttling

Tenant-level isolation, rate limits, and QoS enforcement ensure SLA compliance and data integrity.

High-Concurrency Campaigns

High-Concurrency Campaigns

Parallelized candidate sessions across geo-distributed nodes with unified analytics and centralized reporting — optimized for high-volume HR operations

Reliability & Failover

Reliability & Failover

Multi-AZ deployments, health checks, circuit breakers, and self-healing logic.
Results: 1s median turn response, 10k+ monthly screens per tenant, 99.9% uptime backed by SLA and incident playbooks.

Data Protection

Security & Compliance in HR Software Development

Enterprise-grade protection built into every layer of our AI-powered HR solutions — ensuring trust, data integrity, and compliance across all human resource management software development components.

Shield Protection

Shield Protection

End-to-end TLS encryption, Web Application Firewall (WAF), and intelligent rate limiting safeguard data in transit. Designed for HRMS software development environments handling sensitive candidate and recruiter information.

Access Lock

Access Lock

JWT-based authentication with scoped, short-lived credentials. Implements role-based access (RBAC) for recruiters, admins, and candidates — reinforcing secure HR software development services

Encryption at rest

Encryption at rest

Full data encryption across databases and cloud storage with audit logs, IP allow-listing, and strict access policies. Compliance-ready architecture supports GDPR, CCPA, SOC 2, and ISO 27001 frameworks — key for any HR software development company serving global clients

Innovative Experience

Industries & Use Cases

Retail

Retail

Store & DC hiring; shift & weekend availability checks

High adoption rate
Logistics

Logistics

Drivers, dispatch, warehouse — license / authorization screening.

High adoption rate
BPO / Contact Centers

BPO / Contact Centers

Language / shift matching at scale.

Very high adoption rate
Tech

Tech

Engineer / PM / Design roles with nuanced skills.

Medium adoption rate
Hospitality

Hospitality

Front-of-house & back-office pipelines.

High adoption rate
Healthcare

Healthcare

Non-clinical & admin roles; HIPAA-adjacent policies.

Medium adoption rate
Manufacturing

Manufacturing

Line operators & maintenance; safety shifts.

Medium adoption rate
Finance

Finance

Authorization & conflict-policy checks.

Medium adoption rate
Government / Public

Government / Public

Policy-heavy, compliance-first hiring.

Low adoption rate
Education

Education

Admissions & campus recruiting.

Medium adoption rate

Delivery Crew

Project Team

High-performing developers for growing companies

Eugene Katovich

Eugene Katovich

Sales Manager

Ready to scale your hiring with an AI HR Assistant — without sacrificing candidate experience?

Empower your team with an AI-powered HR solution that pre-screens applicants instantly, integrates with your ATS, and enhances the human side of hiring — all built by a trusted HR software development company

Talk to an Expert

Gain the Edge

Key Performance Flow

End-to-end AI-powered HR solution for automated pre-screening: join, assess, decide, schedule — all in one unified flow

01

Create & Consent

Open the AI widget or IVR from your careers site — instantly capture TCPA/GDPR consent and initiate candidate screening. Seamlessly integrated into existing human resource management software development systems and ATS platforms

02

Screen & Extract

Conversational Q&A powered by an AI HR Assistant captures skills, tenure, authorization, location, time zone, and availability — with adaptive logic for every role and region

03

Score & Route

Rubric-based scoring and knockout rules automatically qualify or reject candidates.
 All results are synced back to the ATS, creating a unified HRMS software development data pipeline

04

Schedule & Sync

TTS streaming → Mixer (duck/originalSmart scheduling logic sends calendar invites, reminders, and updates candidate stages automatically.
 No manual follow-ups — just smooth automation across your HR software development services stack) → Output to player overlay

AI Speech & Quality Stack

AI Speech & Quality Stack

    • Streaming ASR (partial/final) with diarization for phone screens

    • HR-tuned NLU models for skills, tenure, and compliance data

    • RAG over policies, benefits, and visa docs with grounded citations

    • Guardrailed answers for legal and jurisdictional accuracy

Delivery & Automation

Delivery & Automation

    • Self-serve rescheduling via SMS, email, or WhatsApp

    • Standardized notes, tags, and rejection reasons in ATS

    • Admin console for dialogs, scorecards, and policies

    • Instant & scheduled interviews (calendar integration)

Throughput & Scale

Throughput & Scale

    • Handles high-concurrency sessions across geographies and roles

    • Sub-second responsiveness for chat and voice flows

    • Horizontal scaling of ASR, NLU, and RAG nodes with per-tenant QoS

    • Observability for traces / metrics / logs

Results

Real outcomes from production — delivering measurable impact through AI-powered HR solutions and intelligent HRMS software development

↓ 60 – 80%

↓ 60 – 80%

Instant pre-screening reduced candidate response lag through automation, improving recruiter efficiency and experience

↑ 25 – 40%

↑ 25 – 40%

Consistent, rubric-based scoring from the AI HR Assistant increased pass-through accuracy and reduced false negatives

↓ 40 – 60%

↓ 40 – 60%

Fewer manual touches per candidate thanks to integrated scheduling, automated reminders, and synchronized human resource management software development tools

↑ Show-up rates

↑ Show-up rates

Enhanced with self-serve scheduling, reminders, and voice notifications — boosting candidate engagement

↑ Candidate CSAT

↑ Candidate CSAT

Improved satisfaction scores through transparent, bias-free, and policy-true interview interactions — a hallmark of Plavno’s HR software development services

Tools We Used

Technology stack

Media / RTC

Media / RTC

WebRTC
WebSocket
SIP / IVR
Horizontal scaling
Backend & Orchestration

Backend & Orchestration

Node (TS)
Python services
S3
AWS EC2 / EKS
Cloudflare
Speech & Language

Speech & Language

Streaming STT
HR-tuned NLU
Guardrailed LLM
RAG
Frontend

Frontend

React
Redux Toolkit
Ant Design
Vercel
WebSocket
Mobile

Mobile

React Native
WebRTC
Redux Toolkit
Admin & Ops

Admin & Ops

Refine
React Query
ATS webhooks
Observability stack

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Frequently Asked Questions

Quick Answers

Find answers to your common concerns

How long is a typical pre-screen?

Usually 5–7 minutes, depending on the role, language, and adaptive branching logic — powered by our AI-powered HR solution

Which ATS do you support?

Native integrations with Greenhouse, Lever, Workday, iCIMS, and SmartRecruiters — plus custom adapters developed through our HR software development services.

How do you handle consent and privacy?

Full TCPA consent capture and GDPR/CCPA compliance. Data encryption, tenant isolation, and configurable retention are embedded by design in our human resource management software development framework

Can we force answers to come only from approved sources?

Yes. The system uses RAG-based retrieval to ensure all responses are grounded in your uploaded content with inline citations — part of our secure HRMS software development architecture

Which platforms are supported?

Web widget, careers-site embed, phone (SIP/IVR), WhatsApp, SMS, and mobile SDKs — optimized for omnichannel HR software development company deployments

How does it behave on poor networks?

Sub-second latency with packet-loss resilience and graceful fallback on IVR — ensuring reliability even in low-bandwidth regions

About Plavno

Why choose Plavno?

Proven by our
customers feedback

clutch.co
AI-first Delivery

AI-first Delivery

Senior engineers + proven AI components to accelerate time-to-value.

800+ Projects Delivered

800+ Projects Delivered

From MVPs to enterprise platforms at global scale.

Full-stack Team

Full-stack Team

From extension UX to GPU pipelines and global scale.

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“They really understand what we need. They’re very professional.”

The 3D configurator has received positive feedback from customers. Moreover, it has generated 30% more business and increased leads significantly, giving the client confidence for the future. Overall, Plavno has led the project seamlessly. Customers can expect a responsible, well-organized partner.

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Commercial Director, RNDpoint

Sergio Artimenia

“We appreciated the impactful contributions of Plavno.”

Plavno's efforts in addressing challenges and implementing effective solutions have played a crucial role in the success of T-Rize. The outcomes achieved have exceeded expectations, revolutionizing the investment sector and ensuring universal access to financial opportunities

Thien Duy Tran

Product Manager, T-Rize Group

Thien Duy Tran

“We are very satisfied with their excellent work”

Through the partnership with Plavno, we built a system used by more than 40 million connected channels. Throughout the engagement, the team was communicative and quick in responding to our concerns. Overall, we were highly satisfied with the results of collaboration.

Michael Bychenok

CEO, MediaCube

Michael Bychenok

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Plavno's codes and designs are user-friendly, and they complete all deliverables within the deadline. They are easy to work with and easily adapt to existing workflows, and the client values their professionalism and expertise. Overall, the team has delivered everything that was promised.

Helen Lonskaya

Head of Growth, Codabrasoft LLC

Helen Lonskaya

“The app was delivered on time without any serious issues.”

The MVP app developed by Plavno is excellent and has all the functionality required. Plavno has delivered on time and ensured a successful execution via regular updates and fast problem-solving. The client is so satisfied with Plavno's work that they'll work with them on developing the full app.

Mitya Smusin

Founder, 24hour.dev

Mitya Smusin

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