JUNIOR VOICE AND MOBILE CORE ENGINEER (H/F)

Job description

Hierarchical relationship
The Junior Voice and Mobile Core Engineer is member of the Voice and Mobile Service team.
The team is responsible for the architecture and engineering, technical administration, operations, maintenance of the core network elements delivering mobile and fixed telephony services.
You reports to the Voice and Mobile Service Manager.
Responsibility
Within the team, you are responsible for the mobile and fix telephony network engineering.
You will also ensure the coordination of the activities with suppliers, internal and external business partners in order to deliver a complete end to end service.
You will be involved in the definition of the mobile and fixed telephony network evolution, and take active part of its implementation (analysis, design, delivery, testing).
In addition, you will participate in the network operations (member of the 24/7 on call duty role). This will start when you will be autonomous, not before.
Functional description (tasks)
You design, implement, manage and support the new converged mobile and fixed network in the following domains:
VoIP (IMS): DRA/DEA, P/I/S/E-CSCF, Media Gateways, application servers
Evolved Packet Core: P-GW/GGNS, e-PDG
Value Added Services and intelligent networks: IN (SCP), OCS, voice messaging, SMS, PCRF
IP domain: MPLS, TCP/ IP, switching, routing, DNS, DHCP, NAT, Tunneling, Load Balancing, firewalling
Virtualized telco infrastructure: NFV, VNF, NaaS, Mano, OpenStack
Core Network databases: HLR, HSS, AuC
TDM: STP, media gateways, softswitches
Roaming, SIM, mobile devices.
As a junior in the team, you will be trained and we don't expect you to have a knowledge of everything.
You will be responsible for the following tasks:
Network evolution definition and implementation: participation in the architectural evolution, in the analysis, design, implementation and testing.
3rd parties and internal tasks definition and coordination, to deliver the required end to end functionality and services
Identify improvement areas, propose enhancements to improve service quality and reliability
Participate in the development and improvement of the Quality Assurance Plan
Participate in the day to day operations and administration of the core network, and their interconnections.
Member of the support team for voice and mobile services (24/7 on-call team).
Profile and domains of expertise
Master Degree (IT, Telco), or equivalent by experience.
Preferably a first experience in one or more relevant domains of the telecommunications industry
Good knowledge of Voice and Mobile architectures, in one or more of the following domains mentioned in the functional description.
Good notions of network security
Good knowledge of mobile and fixed network architectures: Wireless, GSM, WCDMA, LTE, VoLTE, Wi-Fi, Roaming
Skills
Team oriented but ability to work autonomously
Quality-focused , strong sense of integrity, responsibility and initiative
Structured, methodical and meticulous
Project oriented, results-focused
Eager to learn about new technologies with a passion for telecommunications
Self-learning skills
Self-organized: able to prioritize and execute multiple tasks efficiently
Strong written and oral communications skills: ability to work collaboratively with internal and external clients and suppliers
Good knowledge of French and English (technical, oral and written) is mandatory