Senior Engineer/Specialist-Wireline

Technology, Data & Digital · IT Infrastructure & Security · Network Administration

In short

We are hiring Senior Engineers/Specialists for our Fixed Line Core and IMS VOBB operations team. This role requires expert-level knowledge of IMS, VoLTE, and 5GC core architecture, along with deep understanding of signaling networks and legacy switching. You will lead a team, manage network availability, and drive major incident management.

Responsibilities

Lead and manage a team of engineers across multi-vendor platforms (Tekelec, Ribbon, Oracle, Nokia, Genband, and Ericsson).
Own end-to-end network availability, SLA adherence, and operational KPI delivery.
Drive major incident management, escalation handling, and post-incident reviews.
Define and improve operational processes, automation frameworks, and best practices.
Plan and execute network expansions, IMS-to-5GC evolution programs, and TDM-to-VoIP/IMS migrations.
Manage relationships with internal stakeholders, vendors, and customers.
Lead budgeting, capacity forecasting, and long-term technology roadmap planning.
Ensure compliance with security policies, audit requirements, and operational standards.

Requirements

8–15+ years in telecom core network engineering and operations.
2+ years in a formal leadership or team management role.
Expert-level knowledge of IMS, VoLTE, and 5GC core architecture.
Deep understanding of signaling networks (DSR, STP, Diameter routing).
Strong knowledge of legacy switching (DMS, CS2K) and migration strategies.
Proven ability to lead multi-vendor telecom operations at scale.
Strong stakeholder management, project management, and executive communication skills.
Bachelor's or master’s degree in Telecommunications, Computer Science, Electrical Engineering, or a related field.
Relevant experience 8–15+ years (Team Lead).
Knowledge of core telecom protocols (SS7, SIGTRAN, SIP, Diameter, and RTP).
Hands-on experience with multi-vendor platforms (Ericsson, Nokia, Oracle, Ribbon, Tekelec, and Genband).
Linux/Unix proficiency.
Strong analytical, troubleshooting, and documentation skills.
Leadership, project management, and stakeholder communication skills (Team Lead).
Experience with IMS, VoLTE, 5GC architecture and legacy migration strategies (L3 and above).

Desired Qualifications

Scripting skills in Python or Shell are an advantage.

Benefits

Compelling opportunity to grow and make real impact in a technically rich, fast-evolving environment.

Skills

IMSVoLTE5GCDSRSTPDiameterDMSCS2KSS7SIGTRANSIPRTPLinuxPythonShell scripting

#telecom#core network#IMS#VoLTE#5GC#signaling#DSR#STP#Diameter#legacy switching#migration#multi-vendor#leadership#project management#stakeholder management

About Ericsson

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Our purpose \nTo create connections that make the unimaginable possible.\n\nOur vision\nA world where limitless connectivity improves lives, redefines business and pioneers a sustainable future.\n\nOur values\nPerseverance, professionalism, respect and integrity.\n\nThe future is a place for purpose & vision – ours are clear, and we invite partners, customers and consumers to join us in our journey. \n\nFor a brighter future. For all. Let's #ImaginePossible

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