Build Secure Web & Mobile App Platform with Admin Dashboard and API Integrations

We are looking for an experienced software development company/team/freelancer to build a secure, scalable web and mobile app-based platform with strong backend architecture, admin dashboard, user portals, payment integration, API integrations, order workflows, reporting and operational management.

This is not a basic website or simple mobile app project. We need a team that has experience in building transaction-based platforms, enterprise portals, secure backend systems, API-heavy applications and admin-driven operations panels.

Key requirements:

Web portal and Mobile App / PWA development
B2B and B2C user portal experience
Admin dashboard and operations panel
Payment gateway integration
Secure API integrations and webhook handling
Multi-vendor API integration experience
Order management and fulfilment workflow
Inventory management logic
Wallet, ledger and reconciliation module
Role-based access control for admin/users
Reporting dashboard, audit logs and export reports
Secure backend architecture with scalable database design
Email/SMS/WhatsApp notification integration
Support ticket, refund and issue-resolution workflow
Cloud deployment and post-launch support

Preferred Technology Stack
React.js / Next.js
Node.js / NestJS
PostgreSQL / MongoDB
Redis / Queue system
AWS / Cloud deployment
Secure API middleware
REST APIs / Webhooks
Mobile app experience: React Native / Flutter will be a plus

Please apply only if you have relevant experience in building transaction-based platforms, fintech-style dashboards.enterprise portals, API-heavy systems, payment workflows, admin dashboards and scalable backend applications.

Do not send generic portfolios. Please share relevant work only. Show More