Senior VoIP / PBX Specialist (Asterisk & FreePBX)

We are looking for a Senior VoIP/PBX Specialist to design and deploy a cloud-based Asterisk/FreePBX phone system We are looking for an experienced VoIP architect who can recommend, design and implement a secure, scalable and production-ready solution following industry best practices. Scope * Design the overall VoIP/PBX architecture * Deploy and configure Asterisk & FreePBX * Configure SIP trunks for EU inbound and outbound calling * Configure extensions, IVRs, queues, ring groups and call routing * Implement security best practices * Recommend backup, monitoring and recovery strategies * Document the complete solution Requirements * 5+ years of hands-on Asterisk/FreePBX experience * Proven experience deploying cloud-hosted PBX systems * Strong knowledge of SIP, PJSIP, RTP, NAT traversal and VoIP security * Experience with SIP trunk providers serving EU countries * Strong Linux administration skills * Excellent written documentation To Apply Please include: * A brief summary of your relevant experience * Similar projects you have completed * Your recommended architecture for this project * Technologies you would use and why * Your estimated timeline * Your availability and hourly rate We are looking for a long-term technical partner who can help build a reliable, scalable cloud telephony platform for customer service and outbound sales across EU markets.