Telco Solutions Architect

Billease offers you the easiest way to afford what you want and need today. Our brandcenters around making shopping and payment processes seamless and convenient. Our customers have diverse lifestyles and are looking to enhance their shopping experiences both online and offline. It's essential for us to embody the core of our brand name Billease, a combination of bill and ease, pronounced bilis, which means speed or swiftness in Filipino.

Discover more about us here: https://billease.ph/about-us

We are looking for a Telco Solutions Architect to take full ownership of the design, implementation, and ongoing optimization of our inhouse voice infrastructure. This includes all systems integrated with our custom dialer and enterprise wide IP Telephony and Contact Center environments. You will play a critical role in shaping a scalable and resilient telecommunications architecture that supports our business growth.

This role is ideal for someone who has built telco systems from the ground up and is comfortable working independently across the full solution lifecycle.

What You'll Do

• Design and implement custom VoIP and telephony infrastructure
• Design and optimize SIP-based communication systems using open-source platforms (e.g., Kamailio, Asterisk, FreeSWITCH)
• Collaborate with external SIP trunk providers, ISPs, and telco partners for interconnects, number provisioning
• Monitor system performance, call quality, and availability across all voice components
• Lead root-cause analysis and resolution of outages or performance degradation

What Were Looking For

• 5+ years experience in VoIP and telco infrastructure design and support
• Hands-on experience with open-source VoIP platforms (Kamailio, Asterisk, OpenSIPS, FreeSWITCH)
• Strong understanding of SIP protocol, RTP, SDP, SIP responses, and call flow debugging
• Proven ability to integrate and troubleshoot SIP trunks, SBCs, PBX systems, and media gateways
• Experience with Linux systems, VoIP monitoring tools, and scripting/automation
• Excellent communication and documentation skills
• Bachelors degree in Computer Science, Information Technology, or related field