Packet Core Engineer M / F > TRANSATEL > Joboolo FR :

As part of the Telecoms department, you will be a reference and expert on Transatel’s core Mobile Data network.

Working closely with the architects and as part of a team of Expert Engineers, you will be responsible for developing and documenting engineering solutions for the routing of data on our network.

This will apply to both new services and the consolidation of existing infrastructures, in line with the company’s strategy.

You will also work with the Project Managers, Operations teams, and other engineers in the Telecoms department.

As part of this role :

You will need to master the Data Core architectures (MME / SGSN / SGW, GGSN / PGW, PCC, PCRF, OCS, etc.) of mobile networks and IPv4 / IPv6 technologies and understand their implementation within our virtual operator network core.

You will design technical solutions to meet project requirements while maintaining the platform’s operability.

You will document each subject and ensure the transfer of knowledge to the operations and support teams.

You may be required to assist with support on the platform.

Your profile

You hold a degree in Software or Telecoms Engineering or equivalent, with at least 5 to 8 years of experience in telecommunications, particularly in GGSN / PGW.

You will be familiar with the following technologies:

Practical knowledge of IP routing and associated protocols (BGP, OSPF, etc.).

Mastery of GPRS / 3G / LTE architectures and concepts

Knowledge of protocols:


GTP, Radius, Diameter, and interfaces Gx, Gy, Gi, AAA, etc.

Ability to respond to short deadlines and varying priorities.

Willingness to travel to site if required.

Working knowledge of the following mobile core network elements :

PGW / GGSN

Radius server

DRA / DEA

SGSN / MME

Experience in IPv6, CGNAT, and/or firewall technologies.

Experience with cloud deployments (Kubernetes, OCP, etc.)

Your natural curiosity will enable you to stay updated with industry developments, and you have a taste for innovation.

You’re passionate about telecom services engineering, curious, self-starting, and enjoy developing innovative solutions.

You can communicate effectively with various teams, both orally and in writing.

You are organized, rigorous, and comfortable in a fast-paced environment.

Fluency in English is essential for this position.