Core Network Project Lead - IMS/VoLTE & ISBC Deployments

Capgemini Engineering; Porto; Hybrid; EUR 60,000 - 75,000; Full time

Benefits offered by this job

Hybrid work

Health and life insurance

Referral program with bonuses

Great office locations

Job summary

Capgemini Engineering is seeking a seasoned telecom deployment specialist to lead end-to-end ISBC deployment and integration across multi-operator environments. You will manage IMS, VoLTE Core, Diameter/RADIUS platforms, and interconnect gateways, creating migration plans and coordinating with engineering teams and stakeholders.

You will review LLDs/MOPs, ensure thorough testing in LAB and Production, and report progress to senior management, while driving governance and risk management across

Qualifications

• Strong hands-on experience with IMS Core, VoLTE architecture, SIP signaling, and telecom interconnect environments.
• Solid expertise in Diameter and RADIUS platforms, roaming integrations, and telecom signaling protocols.
• Proven experience deploying and integrating ISBC/SBC solutions in multi-vendor and multi-operator environments.
• Strong understanding of telecom core network architecture, roaming services, and interconnect gateways.
• Experience managing LAB validations, production deployments, migration execution, and rollback activities.
• Skilled in preparing and reviewing technical documentation including LLDs, MOPs, test plans, and operational procedures.
• Strong stakeholder management and communication skills, with experience reporting to senior management and customer leadership.
• Ability to lead cross-functional technical discussions and coordinate complex deployment activities under tight timelines.
• Excellent project coordination, planning, and risk management capabilities.
• Comfortable working in international environments and collaborating with remote engineering and operations teams.

Responsibilities

• Lead end-to-end deployment and integration of ISBC across multi-operator and roaming environments.
• Manage projects involving IMS, VoLTE Core, Diameter/RADIUS platforms, and interconnect gateways.
• Create detailed migration and implementation plans aligned with customer and business requirements.
• Coordinate in-depth technical discussions with engineering teams, vendors, operations, and customer stakeholders.
• Review and validate Low-Level Designs (LLD), Method of Procedures (MOPs), rollback plans, test cases, and operational documentation.
• Ensure all deployment and migration scenarios are fully tested in LAB and Production environments.
• Execute migration activities with structured reporting to stakeholders and senior management, including daily and critical hourly updates when required.
• Drive project planning activities, milestone tracking, risk management, and deployment governance.
• Coordinate with Design, Operations, and Delivery teams to ensure smooth rollout and operational readiness.
• Support compliance, audit, and quality assurance processes for telecom deployments and operational activities.

Job description

Capgemini Engineering is seeking a seasoned telecom deployment specialist to lead end-to-end ISBC deployment and integration across multi-operator environments. You will manage IMS, VoLTE Core, Diameter/RADIUS platforms, and interconnect gateways, creating migration plans and coordinating with engineering teams and stakeholders.

You will review LLDs/MOPs, ensure thorough testing in LAB and Production, and report progress to senior management, while driving governance and risk management across