Our client, a leading general multinational information technology services and consulting company, is recruiting a Mobile Core / IMS Support Engineer (VoLTE) to join their business in Spain.

Position Title:

Mobile Core / IMS Support Engineer (VoLTE)

Position Type:

Permanent or Freelancer

Start Date:

ASAP

Location:

Madrid, Spain

Contact:

Franci | +49 89 23 88 98 55

Responsibilities:
- Support and execute deployment projects for new solutions and platforms.
- Participate in expansions, upgrades, and evolutions of existing customer projects.
- Provide post-sales technical support for production platforms and services.
- Analyze, troubleshoot, and resolve technical incidents.
- Escalate and follow up complex technical issues until full resolution.
- Coordinate with internal teams, customers, vendors, and other technical stakeholders.
- Prepare and maintain technical documentation, procedures, and reports.
- Participate in an on-call / standby support scheme, depending on service needs.
- Provide remote support and, when required,



support planned interventions or emergency activities.

Requirements:

The candidate must have strong experience in one or more of the following domains:

Value Added Services (VAS) – SMSC / IN
- Strong experience with Value Added Services platforms, particularly SMSC and Intelligent Network (IN) environments.
- Proven experience in integration, deployment, configuration, and operational support of SMS and IN service platforms.
- Solid understanding of SMS service architecture, routing, and interworking within mobile networks.
- Experience in service provisioning, troubleshooting, and performance analysis in VAS environments.
- Knowledge of signaling protocols related to messaging and IN services (e.g., SS7/MAP, SMPP, Diameter).

Mobile Core (2G3G4G5G) – Packet Core and IMS (VoLTE / VoWiFi)
- Strong technical and functional knowledge of Mobile Core networks, with focus on Packet Switched (PS) Core and IMS-based services.
- Experience

📌 Mobile Core (Madrid)
🏢 Manning Global
📍 Madrid