Signaling, Switching & Messaging Specialist

We are looking for an engineer who lives and breathes telecom signaling. In this role, you will shape and operate the backbone of our voice and messaging services, ensuring that millions of subscribers stay connected every day. You’ll work with SS7, SIGTRAN, Diameter, SIP, and IMS to design call routing and keep networks interoperable across multiple vendors.

Messaging is a big part of what you’ll do: connecting third-party applications to our SMSC via SMPP, implementing SMS home routing, managing blacklists and whitelists, and making sure rules (like ENUM lookups) always lead traffic where it should go. You’ll work with STP/DRA for signaling control, rewrite IMSI prefixes on the fly, map GTs across networks, and guard our systems against signaling storms.

This is a role for someone who enjoys solving complex problems in real time, keeping critical infrastructure resilient and secure, and pushing the boundaries of what signaling and messaging systems can do. You’ll collaborate with vendors and integrators, plan upgrades, test new solutions, and help us stay ahead in a fast-moving telecom world.

• Strong proficiency in SS7, SIGTRAN, Diameter, SIP, and IMS protocols.
• Experience with Session Border Controller (SBC) configuration and management.
• Knowledge of call routing, signaling, and switching procedures within mobile and fixed networks.
• Hands-on experience with intelligent network (IN) services and service logic configuration.
• Ability to perform interoperability testing between network elements, including multi-vendor environments.

Experience with messaging services like:

• STP/DRA for signaling routing.
• SMS home routing
• GT Mapping

• Strong troubleshooting and problem-solving skills for signaling, switching, and messaging issues.
• Deep understanding of network standards, best practices, and telecom protocols.

Founded in early 2010, Webbing is a global data MVNO that delivers enterprise grade, global connectivity and IoT services across more than 200 countries and 600+ mobile carriers' networks. Webbing's secured network delivers network protection and web content intelligence.

Enterprise customers can manage, monitor, and optimize data usage in real-time with Webbing's powerful software platform. Gain visibility by application type and have the power to white list applications and limit non-business applications with the click of a button, saving money and improving compliance.

• Fully remote
• An exciting and challenging workplace with great skill and knowledge development opportunities.
• The opportunity to join a team of highly professional specialists in an international environment.
• The opportunity for professional development within a reputable international innovative and growing company.