About this opportunity:
We are now looking for a Problem Manager - Core Domain who will be responsible for managing, analyzing, and preventing recurring incidents across large-scale CS & PS Core Networks and Core Network Infrastructure. The role focuses on root cause analysis, trend analysis, stakeholder coordination, and continuous service improvement, while working closely with L2/L3 operations, vendors, and engineering teams.
What you will do• Own and manage the end-to-end Problem Management lifecycle for Core Network domains (CS Core & Packet Core)• Perform root cause analysis (RCA) for major and recurring incidents and ensure permanent corrective actions• Coordinate with L2/L3 operations, engineering, vendors, and external stakeholders to drive problem resolution• Track and analyze incident trends, identify systemic issues, and recommend preventive measures• Ensure problem resolution activities are delivered within agreed SLAs and OLAs• Drive preventive and corrective maintenance initiatives to reduce incident recurrence• Review and validate network changes to ensure risks are identified and mitigated• Perform network configuration audits and support service stability improvements• Provide technical guidance and mentorship to L2 operation engineers to ensure process consistency and quality• Create and maintain problem records, knowledge articles, and best practices documentation• Lead post-incident reviews, major incident follow-ups, and service improvement plans• Support continuous improvement initiatives and operational excellence programs• Handle day-to-day problem reporting, dashboards, and management updates
You will bring• 7 to 14 years of experience in Telecommunications• 5-8 years of strong domain experience in CS Core and/or Packet Core• Solid understanding of ITIL Problem Management processes and operational best practices• Clear understanding of 3GPP standards and protocols such as SIP, Diameter, BICC, SIGTRAN, CAMEL, MAP, etc.• Strong understanding of 2G/3G/4G Core Network nodes, protocols, and signaling flows• In-depth knowledge of voice core scenarios and signaling flows• In-depth knowledge of data core scenarios and signaling flows• Strong hands-on experience with Voice Core CS nodes such as MSC, MGWs, STP, UDC, APG, etc.• Very good knowledge of Packet Core nodes including SGSN-MME, GGSN (EPG), SAPC (PCRF)• Good understanding of Packet Core surrounding nodes (IMS, OCC, IPWorks DNS, Charging Nodes)• Understanding of 5G NSA and 5G SA architectures and call flows• Deep knowledge of roaming data and call flows, including GRX architecture• Strong understanding of IMS call flows• Excellent IP networking background• MPBN knowledge• Very good knowledge of Linux operating systems• Good understanding of Virtualization, Cloud NFVI, NFVO, and cloud infrastructure• Strong analytical, troubleshooting, and presentation skills• Ability to plan and execute context-specific analysis and problem-solving frameworks in collaboration with stakeholders and vendors• Ability to innovate and drive improvement initiatives that enhance service stability and customer experience• Self-driven, self-motivated, ambitious, and effective in handling complex operational challenges• Excellent communication skills (verbal & written) with strong customer and stakeholder handling capabilities
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What We Do
Ericsson builds the digital connectivity the world relies on. Our technology underpins the mobile networks, platforms, and systems that billions of people, businesses, and societies depend on every day.
We are a global leader in communications technology, delivering mobile network infrastructure, cloud software, and wireless connectivity solutions for service providers and enterprises worldwide. Our networks support connectivity across 180+ countries, helping power everyday communication as well as critical digital services at global scale.
Connectivity has evolved far beyond consumer mobile use. Today, nearly 80% of the world’s population accesses the internet via mobile networks, and Ericsson is helping shape what comes next. We are advancing 5G and 5G Advanced, developing network APIs that open connectivity to the global developer ecosystem, and applying automation and AI to make networks more intelligent, efficient, and resilient.
Ericsson was the first company to launch live 5G networks on five continents, and our 5G platform is now commercially live in 150+ networks across 60+ countries. We also support more than 36,000 enterprise customers, enabling secure, high-performance connectivity for industries such as manufacturing, aviation, logistics, utilities, and public safety, where reliability and performance are mission critical.
Innovation is central to how we work. Ericsson has approximately 28,000 employees in research and development, backed by one of the strongest intellectual property portfolios in the industry with 60,000+ granted patents. Our engineers, researchers, and technologists work across 100+ global R&D sites, helping define how networks evolve and how digital infrastructure is built for the long term.
As the world moves toward a mobile-first, AI-powered, and cloud-driven future, connectivity becomes the foundation for digital transformation across every industry. Ericsson is building that foundation, shaping the future of digital connectivity through technology that operates at global scale and supports real-world impact, today and for what comes next.
Why Work With Us
Ericsson is a place for people who want to work on technology that powers everyday life. You’ll contribute to large-scale systems used every day, tackle complex challenges in live environments, and keep developing your skills and career in your own vision.
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Employees engage in a combination of remote and on-site work.
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