AI & AutomationIn Production

LeadForge AI

Automated B2B Prospecting & Real-Time Contact Intelligence

LeadForge AI is an enterprise-ready intelligent outbound prospecting and contact enrichment platform. By combining distributed web scrapers, verified email discovery engines, and OpenAI-powered semantic scoring, LeadForge AI automates repetitive sales research and delivers verified sales-ready leads straight into CRM pipelines.

RoleLead Backend Developer & Systems Architect

Timeline4 Months

Target AudienceSales & Marketing Agencies

Architecture StyleEvent-Driven / Cloud Native

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KEY PERFORMANCE METRICS

500K+

Leads Enriched

Processed across 1,200 domains

99.4%

Email Accuracy

Zero-bounce verification filter

15 hrs

Time Saved/Wk

Per outbound sales rep

< 450ms

Search Latency

Redis-backed indexed queries

Technology Stack Breakdown

Frontend & UI

Next.js 14Tailwind CSSFramer Motion

Backend & Services

Node.jsExpress.jsTypeScriptBullMQ Worker Queues

Database & Caching

MongoDB AtlasRedis Cache

DevOps & Cloud

AWS ECSDockerNginxGitHub Actions CI/CD

THE PROBLEM

The Prospecting Bottleneck

Modern outbound sales teams waste more than 35% of their working hours manually scraping LinkedIn profiles, verifying stale email addresses from static CSVs, and crafting personalized outreach emails individually.

High bounce rates (18-25%) resulting from stale B2B contact databases causing sender domain penalties.

Manual qualification of lead company tech stacks consuming several hours per representative daily.

Disconnected tooling between discovery scrapers, validation APIs, and final CRM insertion.

Rate-limiting and IP banning when attempting to aggregate publicly accessible directory data at volume.

THE SOLUTION

Real-Time AI Enrichment & Automated Pipeline

Designed an asynchronous multi-stage data processing pipeline utilizing Redis queues, background worker pools, and LLM-driven personalized insight extraction.

Distributed scraping engine with adaptive rate-limiting and residential proxy rotation.

Multi-tier verification system validating MX records, SMTP handshakes, and company domain health.

AI personalization microservice generating tailored cold outreach icebreakers based on recent company press releases.

Native two-way synchronization with CRM providers including HubSpot, Pipedrive, and Salesforce.

SYSTEM ARCHITECTURE

Data Flow & Distributed Infrastructure

Built on an event-driven micro-task architecture where data ingestion, DNS verification, and AI enrichment run asynchronously through Redis queues to maintain a snappy, responsive UI under peak traffic.

Client Request (Next.js) │ ▼ Cloudflare CDN / Nginx Reverse Proxy │ ▼ Express.js API Gateway (Node.js / TypeScript) │ ├──▶ Redis Cache (Fast queries & Rate limiting) ├──▶ BullMQ Job Queue │ │ │ ├──▶ Scraper Workers (Distributed IP cluster) │ ├──▶ SMTP / DNS Email Verification Engine │ └──▶ OpenAI Analysis Worker (GPT-4o) │ ▼ MongoDB Atlas (Replica Set with Sharded Indexes) │ ▼ Webhooks & CRM Integrations (HubSpot / Salesforce)

API Gateway & Session Authentication

Handles secure REST calls with JWT validation, tenant rate-limiting, and request sanitization.

Asynchronous Queue Dispatcher

Pushes bulk lead discovery tasks into Redis BullMQ to decouple user experience from heavy background jobs.

AI Synthesis & Verification Engine

Runs MX/SMTP handshake verification and invokes OpenAI to synthesize key executive summary insights.

Persistence & Webhook Broadcast

Stores enriched records in MongoDB and broadcasts updates to client websockets and external CRMs.

CORE CAPABILITIES

Key Engineering Features

Intelligent Lead Search

Filter prospects by industry, revenue, tech stack, headcount, and geographic presence with instant filtering.

Zero-Bounce Email Verification

Performs real-time RFC-compliant SMTP checks and disposable domain detection before marking leads as verified.

AI Custom Icebreakers

Analyzes target company blogs and news to synthesize contextual first-line conversation starters.

Bulk CSV & CRM Export

Exports thousands of enriched records directly to HubSpot, CSV, or Salesforce with one-click deduplication.

ENGINEERING HURDLES

Technical Challenges Overcome

Third-Party Rate Limits & DNS Latency

The Challenge:Simultaneous MX queries during bulk verification spikes overwhelmed external nameservers and triggered provider rate-limits.

The Solution:Implemented an in-memory Redis DNS resolver cache with exponential backoff retries and pooled thread workers, increasing throughput by 400%.

Memory Leaks During High-Volume Queue Processing

The Challenge:Node.js worker nodes experienced V8 garbage collector lag when parsing large unstructured company HTML payloads.

The Solution:Refactored stream parsers to process chunks via Node.js Transform streams rather than accumulating full buffers in heap memory.

BUSINESS IMPACT

Delivered 99.4% email deliverability and halved customer acquisition research time.

500K+

Verified Leads

99.4%

Deliverability

70%

Speed Increase

Enabled agency clients to scale outbound volume 3x without hiring additional prospecting personnel.

Maintained 99.9% uptime throughout promotional launches and high-concurrency prospecting campaigns.

Achieved sub-500ms database response times across 2M+ stored company records using compound index strategies.

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