Senior Core Network Engineer – IPMPLS & 3GPP (EPC)

We are looking for a highly Senior Core Network Engineer IP/MPLS & 3GPP (EPC) to provide specialized technical services in critical network environments. The goal of this role is to reinforce the operation evolution and resilience of the infrastructure ensuring high standards of availability security and alignment with network engineering best practices.

This position requires a high level of autonomy strong advanced troubleshooting capabilities and the ability to support technical decisionmaking in highcomplexity and missioncritical scenarios.

Key Responsibilities:

Data Center Network Infrastructure Management

• Operation monitoring and continuous evolution of data center network infrastructures
• Technical support for highavailability and resilient architectures
• Execution of technical tests and connectivity validations in production and preproduction environments
• Administration and support of unified communications solutions namely Cisco CallManager
• Management and operation of access control and identity platforms including Cisco ISE
• Ensuring the continuity performance and quality of supported services

Network Security and Traffic Control

• Creation modification and validation of firewall rules in Cisco Fortinet and Check Point environments
• Impact analysis risk mitigation and support for security requirements
• Support in the resolution of network security incidents

Transport and Backbone Networks

• Operation and monitoring of IP/MPLS networks
• Technical support for DWDM infrastructures
• Analysis of link performance stability redundancy and overall backbone quality

Specialized Technical Support and Advanced Troubleshooting

• Diagnosis and resolution of complex network incidents
• Execution of tests technical trials and highcriticality validations
• Coordination with internal teams and technology vendors particularly in NOKIA and CISCO environments
• Technical support for decisionmaking in critical and highpressure operational contexts

Qualifications :

• Senior profile with over 10 years of experience in network engineering with solid expertise in critical environments including engineering and/or operations roles within 3GPP (EPC) environments and MPLS networks.
• Bachelors degree in Telecommunications Engineering
• Proven experience in:
  • IP/MPLS networks (core and transport)
  • Data center infrastructures
  • Highavailability and missioncritical environments
• Strong expertise in the following technologies and platforms:
  • Cisco (Routing Switching CallManager ISE)
  • NOKIA (core and transport environments)
  • Firewalls: Cisco Fortinet and Check Point
  • DWDM infrastructures
• CCNP Service Provider certification
• Relevant experience in core operations and advancedlevel troubleshooting
• Ability to execute technical tests validations and impact analysis

Personal Skills:

• High level of autonomy ownership and technical maturity
• Strong analytical skills and ability to solve complex problems
• Clear and effective communication in technical and critical environments
• Ability to work under pressure while maintaining service quality and stability
• Strong collaboration skills with multidisciplinary teams and external vendors
• Focus on best practices risk mitigation and continuous infrastructure improvement

Additional Information :

• Workplace type: Hybrid (max. of 3 times per week in the office) or Remote
• Location: Picoas Lisboa

Remote Work :

Yes

Employment Type :

Full-time