Back Office Core Engineer - Bucharest

Back Office Core Engineer
Bucureşti
Bucharest, Romania

Main activities and tasks:

Provide
- line operational support for the Core network, ensuring high availability, stability, and service quality.

Manage the lifecycle of Core-related Incidents, Problems, and Changes, coordinating with vendors, field engineers, and stakeholders.

Perform configuration, integration, and maintenance of Core nodes across legacy and
- native platforms.

Monitor performance KPIs, signalling flows, and service quality metrics, proactively detecting degradations and implementing corrective actions.

Participate in Change Management, planning and executing software upgrades, capacity expansions, parameter changes, and feature activations in line with approved Methods of Procedure (Mo
Ps).

Conduct acceptance testing and validation for new Core nodes, releases, and services before production rollout.

Provide remote technical support for Core-related implementation or troubleshooting activities, including interworking with RAN, IP transport, and Data Centre teams.

Support Problem Management by performing root cause analysis (RCA) of recurring service issues and recommending permanent fixes.

Deliver reports and documentation on incidents, performance trends, and network changes, contributing to the operational knowledge base.

Participate in public event assurance by monitoring Core traffic and subscriber sessions during peak or special events.

Cover 24x7
- call duties, acting as technical authority for Core-related escalations.

Collaborate closely with RAN, IP, Security, and Data Centre teams to ensure
-
- end service stability.

Contribute to continuous improvement initiatives, including automation of routine tasks, capacity planning, and feature enablement.

Required Education & Trainings:

Bachelors degree in Telecommunications, Electronics, or IT Engineering (or equivalent experience).

Vendor or
- specific certifications (Ericsson preferred, Nokia, Huawei, Cisco, etc. in Core domains) are an advantage.

Required Experience:

Hands-on operational experience with Core network elements.

Familiarity with NFVI / Cloud Native platforms and Core virtualisation.

Strong background in Incident, Problem, and Change Management in telecom Core networks.

Knowledge of interworking between RAN, IP/MPLS, and Core.

Experience in Managed Services or NOC environments is desirable.

Specific skills & technical knowledge:

Good understanding of mobile Core network architectures, including Circuit-Switched (CS), Packet-Switched (PS/EPC), IMS, VAS, and evolving 5G Core domains.

Knowledge of Core protocols and interfaces used for voice, data, signalling, and policy/charging functions.

Familiarity with Vo
LTE, Vo
Wi
Fi, and multimedia Core services, as well as integration with RAN, IP transport, and Data Centres.

Awareness of
- native and virtualised Core platforms and their operational requirements.

Understanding of service security and interworking components.

Knowledge of subscriber/session management, mobility, and policy/charging control.

Scripting/automation skills for operational efficiency are an advantage.

Strong troubleshooting and analytical skills in
- vendor,
- technology environments.

Excellent communication, documentation, and reporting skills.

Professional level of English (written and spoken) is mandatory.

What We Offer:

Growth Opportunities Support for learning and career advancement.

Work-Life Balance Flexible hours and hybrid work options.

Inclusive Culture A welcoming, diverse environment where everyone feels valued.

Generous Time Off

Informații detaliate despre oferta de muncă

Firma:	CONNECT44
Localiția:	Bucureşti Bucharest, Romania
Adăugat:	5. 10. 2025 Postul de muncă activ

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