Manning Global, an Internationally renowned staffing and managed services organization specializing in providing staffing solutions for leading corporations in AI, IT & Telecoms, Engineering, Digital Media, Automotive and Renewable Energy is seeking a qualified, independent IMS Core Network Consultant or specialized service provider to support an upcoming project. This engagement focuses strictly on achieving key milestones as per the SOW.
Project duration:
5 months
Anticipated Project Start:
15.10.2026
Project Delivery:
Hybrid - Madrid, Spain
Contact for B2B Inquiries
Franci Hernandez: +49 (0) 89 23 88 98 55
Description of Work:
We are urgently seeking a highly qualified candidate with strong, demonstrable experience on Ericsson equipment to join our IMS Core Network Project. The role focuses on supporting Multivendor Interconnection (MVI) activities across three Ericsson-based mobile networks: Orange, KRT, and MásMóvil.
Scope of Work / Responsibilities
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Integration: Interconnection of Ericsson MNPDB nodes (across all 3 networks) with ZTE MGCF nodes (4 sites: 1 testbed + 3 commercial) via the MAP protocol.
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Routing: Configuration of Ericsson CSCF routing to direct a local IMS domain to an external network in Mobile Terminated (MT) scenarios (2 networks).
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Preparation of operational plans, including technical design and development of MOPs (Method of Procedure).
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Execution of live-network operations, including commissioning, BBS, rollback/reversion and troubleshooting, on Ericsson MNPDB and CSCF equipment to complete the MAP interconnection with ZTE nodes and the CSCF routing configuration.
Requeriments / Technical Environment
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Strong and demonstrable hands-on experience with Ericsson Core Network / IMS equipment.
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Experience working with Ericsson MNPDB and IMS CSCF nodes.
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Practical experience in IMS/Core Network integration and configuration.
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Experience performing changes and operations in a live-network environment.
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Experience preparing and executing MOPs / Method of Procedure.
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Experience with network commissioning, BBS, rollback and troubleshooting.
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Ability to work during scheduled maintenance windows.
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MVI vendor: Ericsson
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Networks involved: Orange, KRT, and MásMóvil (3 Ericsson networks)
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Equipment in scope:
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MNPDB nodes across all 3 networks
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IMS CSCF nodes in the Orange and MásMóvil networks
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Required fluent English and Spanish language.
Requirements
- Strong, proven hands-on experience with Ericsson network equipment (mandatory)
- Experience with MNPDB and IMS CSCF nodes
- Prior experience in multivendor interconnection (MVI) environments
- Familiarity with the MAP protocol and multivendor signaling interworking
- Experience with ZTE MGCF equipment is a plus
- Solid background in live-network operations: commissioning, BBS, rollback, and troubleshooting
- Ability to author technical designs and MOPs