We are looking for an experienced telecom software developer or team to build a complete A2P SMS solution — from SMPP server setup to a web-based client/admin portal. The platform should operate similar to a professional A2P/wholesale SMS panel or IPRN management portal, with modules for routing, DLR tracking, billing, and revenue share. Core Requirements: ================== SMPP Gateway Setup Configure and integrate Kannel or Jasmin SMS Gateway on Linux VPS. Handle inbound/outbound SMPP traffic, routing rules, and delivery receipts (DLRs). Support multiple providers (suppliers) and client connections. Backend Development Build routing logic, billing engine, and APIs (REST/SMPP interface). Features: ========= Credit-based billing (auto deduction per SMS). Per-country/operator routing & rate tables. Traffic logs, delivery reports, and status monitoring. Tech preference: Laravel (PHP) / Django (Python) / Node.js (Express or NestJS). Web Portal (Admin + Client) Client Panel: Login, send single/bulk SMS, upload CSV, check balance, get DLR reports, generate invoices. Admin Panel: Manage users, routes, suppliers, rates, revenue share, live statistics, and analytics. Frontend can be built with React, Vue.js, or Bootstrap/Tailwind. Database & Reporting MySQL / PostgreSQL database. Reports for DLR, usage, revenue, and payout (IPRN/MSISDN level). Security & Deployment Host on Linux (Ubuntu/Debian). SSL, firewall, IP whitelist, rate limiting, and monitoring dashboard (Grafana optional). Optional Add-ons (Bonus Skills) IPRN MSISDN monetization experience. Voice routing (SIP/Kamailio/OpenSIPS). Integration with payment gateway or reseller module. Required Skills: =============== SMPP protocol, Kannel / Jasmin SMS Gateway. REST API development. Full-stack experience (Laravel / Django / Node + React/Vue). Database design (MySQL/PostgreSQL). Telecom routing, billing, and DLR handling. Linux server management, security, deployment. Deliverables: Fully functional A2P SMS + Web Portal system. Admin & client logins with documentation. Source code & deployment guide. 1-month post-deployment support for debugging and optimization. Advanced (Full IPRN + Analytics): $3,000