Telecom Engineer (SMPP / SMS Gateway / Asterisk) – Remote Contract

We are looking for a hands-on Telecom Engineer to manage a live SMS and SIP platform.

Responsibilities include:

Managing SMS gateway (Ozeki → Kannel migration)
Setting up and troubleshooting SMPP connections
Creating SMPP users and integrations
Managing Asterisk SIP system (users, routing, configs)
Troubleshooting delivery and connectivity issues

This is a remote contract role (monthly retainer) with flexible hours, but requires availability for incident response.

Requirements:

Strong experience with SMPP
Experience with SMS gateways (Kannel, Ozeki, or similar)
Experience with Asterisk
Strong Linux + networking knowledge
IMPORTANT – Application Requirements

To be considered, please include:

Your experience with SMPP (real examples)
SMS gateway(s) you have worked with
Your Asterisk experience (what you configured)
Your preferred monthly retainer fee (in USD)

Applications without the above details will not be considered.