Build a SMS & Email Marketing Platform + API Gateway -- 2

We are looking for an experienced developer or development team to build a full-scale messaging and marketing platform that integrates SMS services, Email Marketing and API connectivity into a single system.

This is a long-term business platform, not a demo or temporary project.

------------------------------------------

SCOPE & FUNCTIONALITIES

1. SMS MARKETING SYSTEM

• Bulk SMS campaigns
• Personalized SMS using dynamic fields (name, order, appointment time etc.)
• Scheduled SMS sending
• Two-way SMS (customers can reply
• Transactional SMS notifications:
- Order confirmations
- Delivery updates
- Account alerts
- Appointment reminders
• Support for rich messages (images, buttons, interactive elements on supported devices)

--------------------------------------------------

2. API CONNECTIVITY & AUTOMATIONS

• REST API for sending SMS from external systems
• Webhooks for:
- Delivery reports
- Status updates
- System automations
• Email-to-SMS functionality
• Pre-built connectors for:
- E-commerce platforms
- CMS systems
- CRM systems
• Industry-specific connectors for:
- E-commerce
- Logistics
- Healthcare
- Financial services

--------------------------------------------------

3. EMAIL MARKETING SYSTEM

• Unified SMS + Email dashboard
• Drag-and-drop email builder
• Automation workflows:
- Welcome series
- Abandoned cart flows
- Re-engagement campaigns
• Advanced audience segmentation
• Analytics & Reports:
- Open rates
- Click-through rates
- Conversion tracking
- Unsubscribe metrics
- Campaign performance analysis

--------------------------------------------------

4. ADMIN PANEL

• Central dashboard
• User management system
• Contact and list management
• GDPR-compliant data handling
• Campaign and scheduling module
• Message delivery reports
• Complete message history
• API key management
• Role-based access control
• IP whitelisting
• Activity and security logs

--------------------------------------------------

TECH STACK PREFERENCES (OPEN FOR SUGGESTIONS)

Preferred stack:
• Frontend: Next.js or React
• Backend: Node.js / NestJS or similar
• Database: PostgreSQL or MySQL
• Infrastructure: Scalable cloud architecture

--------------------------------------------------

WHAT TO INCLUDE IN YOUR PROPOSAL

• Experience with similar messaging, SMS or marketing platforms
• Architecture suggestion
• Estimated timeline & milestones
• Estimated budget
• Links to previous relevant work or demos

--------------------------------------------------

IMPORTANT:
The platform must be scalable, secure and production-ready.
No white-label shortcuts. Custom implementation required.