Systems Architect "Mobile Voice & Registers"

As the leading national provider of postal and telecommunications services also offering postal financial services, POST Group Luxembourg is a key actor of the Luxembourgish economy.

Within POST Technologies, the ICT Infrastructure department supports POST Luxembourg business services and is responsible of evolution, design, and support of ICT Infrastructures. In order to strengthen our team, we are currently looking an experienced Systems Architect "Mobile Voice & Registers" (m / f / n)

Vos missions

Define and design the architecture of the mobile core network, considering 3GPP and GSMA standards, supplier’s solution architecture, NFV or CaaS infrastructures

Propose solutions for infrastructure evolution based on technical and business requirements

Lead integration of new components or modification of existing components of the mobile core network

Adhere to company security policies and processes

Operational Support :

Incident & Problem Management : Diagnose issues, coordinate with relevant teams, and resolve problems efficiently

Service Monitoring : Monitor network services in real-time. Identify deviations from expected behavior and take corrective actions

Change Management : Assess the impact of changes to the mobile core network. Coordinate with stakeholders to minimize disruptions during upgrades or modifications.

Stay informed of industry trends, emerging technologies, and best practices. Continuously evaluate new solutions and assess their applicability to our network

Take part in an 24 / 7 on-call duty cycle and in planned works outside of normal service hours

Votre profil

• Have a Master degree or else have acquired during your career equivalent and duly recognized knowledge in the field
• Have significant experience in designing and managing mobile core network
• Possess excellent understanding of 3GPP architectures (2G, 4G, 5G), protocols and functions (MSC / STP, MGW, IMS, HLR / HSS / UDM, etc.)
• Have hands-on Knowledge of Ericsson MSS, IMS, Subscriber Data Management and signaling solutions
• In-depth knowledge in cloud landscape with good understanding of concepts like IaaS, PaaS, CaaS, virtualized applications, containerized applications. Hands-on Knowledge of Ericsson CNIS would be considered as an asset
• Have the ability to analyze complex issues and propose effective solutions
• Have proven interpersonal skills for close collaboration with other teams and vendors. Ability to communicate at all levels, both inside and outside the company
• Able to work independently as well as part of a team
• Be fluent in English. German, French and Luxembourgish would be considered as assets