Core Network Customer Technical Project Manager - IMS/VoLTE

Capgemini Engineering; Fundão; Hybrid; EUR 55,000 - 85,000; Full time

Benefits offered by this job

Health insurance

Career growth programs

Referral program with bonuses

Hybrid work option

Great office locations

Job summary

Capgemini Engineering is seeking a telecom deployment lead to oversee end-to-end ISBC deployment and integration across multi-operator networks. You will manage IMS, VoLTE Core, and interconnect gateways, creating migration plans and coordinating discussions among engineering teams, vendors, and customers.

You will review LLDs, MOPs, and rollback plans, ensuring thorough LAB and production testing, with clear reporting to stakeholders and senior management.

Qualifications

• Strong hands-on experience with IMS Core, VoLTE architecture, SIP signaling, and telecom interconnect environments.
• Diameter and RADIUS platforms, roaming integrations, and telecom signaling protocols.
• Experience deploying ISBC/SBC solutions in multi-vendor and multi-operator environments.
• 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.

Skills

IMS Core

VoLTE

Diameter/RADIUS

SIP signaling

Interconnect environments

Project coordination

Stakeholder management

International collaboration

Deployment governance

Labs & production testing

Job description

Capgemini Engineering

At Capgemini Engineering, the world leader in engineering services, we bring together a global team of engineers, scientists, and architects to help the world’s most innovative companies unleash their potential. From autonomous cars to life-saving robots, our digital and software technology experts think outside the box as they provide unique R&D and engineering services across all industries.

Join us for a career full of opportunities. Where you can make a difference. Where no two days are the same.

Your Role

• Lead end-to-end deployment and integration of Interconnect Session Border Controllers (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

Your Profile

• 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

What You’ll Love About Working Here

• Join a multicultural and inclusive team environment.
• Enjoy a supportive atmosphere promoting work-life balance.
• Hybrid work.
• Your career growth is central to our mission. Our array of career growth programs and diverse professionals are crafted to support you in exploring a world of opportunities.
• Access valuable training and certifications in cutting-edge technologies.
• Engage in exciting national and international projects.
• Health and life insurance.
• Referral program with bonuses for talent recommendations.
• Great office locations.

About Capgemini

Capgemini is the business transformation partner for enterprises in the age of AI. We help organizations imagine and build an intelligent, sustainable future, combining AI, technology and human ingenuity to transform how they operate, innovate and grow. With unique end-to-end capabilities spanning strategy, technology, engineering and intelligent operations, we bring together deep industry expertise and market-leading capabilities in AI, cloud and data to turn ambition into measurable business outcomes at scale. Supported by a robust ecosystem of partners and nearly 60 years of expertise, Capgemini is a responsible and diverse global organization of over 410,000 team members in more than 50 countries.