SALES INTELLIGENCEUnited StatesLaunched 2024

Qualified Leads X: B2B Lead Qualification & Intelligence

Automated B2B prospect verification, intent scoring & sales intelligence SaaS

https://qualifiedleadsx.com/
Visit Live Site ↗
Qualified Leads X live website screenshot — Built by Devsynx
Official Live Production Platform: Engineered and supported by DevsynxActive & Operational
ClientQualified Leads X
Category & IndustrySALES INTELLIGENCE
Primary RegionUnited States
Live Website URLqualifiedleadsx.com ↗
< 2%
Bounce Rate Reduction

Verified email lists achieve over 98% inbox delivery

3.5M+
Contacts Verified

Processed across enterprise client campaigns

65%
Prospecting Time Saved

Saved per SDR rep per week

The Challenge

Sales development teams waste 40% of their prospecting hours dealing with bounced email addresses, outdated phone numbers, and unqualified company profiles. Qualified Leads X needed an automated data validation pipeline that could crawl, verify, and score corporate leads in bulk.

What Devsynx Built

Devsynx architected a high-throughput SaaS platform with background data enrichment queues. The platform conducts multi-point MX record validations, LinkedIn profile matching, revenue tier verification, and AI-driven buyer intent scoring before delivering verified contact lists.

Key Engineering Deliverables

Detailed breakdown of the architectural modules, custom integrations, and software features shipped by Devsynx for Qualified Leads X.

Bulk CSV contact list upload and real-time asynchronous data verification queue
Multi-point email deliverability verification engine (SMTP handshake & MX check)
Technographic scanner identifying current CRM, cloud provider, and software stack
Automated lead scoring system assigning 0-100 sales intent scores
One-click sync to HubSpot, Salesforce, Outreach, and Apollo.io
Stripe recurring subscription tiers with automated quota tracking and usage alerts

Core Capabilities & Innovations

Purpose-built features tailored to Qualified Leads X's specific operations and customers.

01 // CAPABILITY

Real-Time MX & SMTP Ping

Verifies mail server responsiveness without sending spam probe emails.

02 // CAPABILITY

Technographic Profiling

Discovers what tools, analytics, and infrastructure a prospect company uses.

03 // CAPABILITY

Instant CRM Push

Syncs qualified leads into sales pipelines with custom field mapping.

Technology Stack & Infrastructure

Modern frameworks, scalable databases, and secure APIs powering qualifiedleadsx.com.

Frontend
ReactNext.jsTypeScriptLucide Icons
Backend
Python FastAPICelery WorkersRedisPostgreSQL
Cloud & Ops
DockerAWS ECSStripe BillingSendGrid

“Devsynx built our core verification and enrichment SaaS from the ground up. The system is blazing fast, handles millions of contact records without flinching, and our users love the UI.”

J
Jason K.
Founder, Qualified Leads X

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