About this opportunity
We are looking for an experienced CS Core Engineer to join our Circle Operations team. In this role, you will be responsible for the operations, monitoring, and troubleshooting of CS Core and subscriber management network elements, ensuring service availability and network performance. You will collaborate with OEMs, cross-functional teams, and business stakeholders to support critical network services and customer experience.
What you will bring
- Strong expertise in CS Core network technologies and subscriber management platforms.
- Hands-on experience with HSS, HLR, STP, DRA, MGCF, MSS, GMSC, UDM, and SCP.
- Good understanding of Authentication, Roaming, VoLTE, HSS, DRA, and UDM functionalities.
- Experience in troubleshooting network and service-level issues, OEM coordination, and operational incident management.
- Exposure to multi-vendor telecom environments, preferably Nokia, Oracle, Huawei, and Ericsson.
You will have
- 8-14 years of experience in Telecom Core Network Operations, with a focus on CS Core and Subscriber Data Management domains.
- Experience in network monitoring, KPI analysis, traffic management, and operational support.
- Knowledge of incident, ticket, and work order management processes.
- Ability to work effectively in a fast-paced operational environment with flexibility to support 24x7 operations.
- Strong communication, stakeholder management, and problem-solving skills.
"All academic credentials must be from recognized and accredited institutions and are further subject to verification."
Why join Ericsson?At Ericsson, you'll have an outstanding opportunity. The chance to use your skills and imagination to push the boundaries of what's possible. To build solutions never seen before to some of the world's toughest problems. You'll be challenged, but you won't be alone. You'll be joining a team of diverse innovators, all driven to go beyond the status quo to craft what comes next.
What happens once you apply? Click Here to find all you need to know about what our typical hiring process looks like.Encouraging a diverse and inclusive organization is core to our values at Ericsson, that's why we champion it in everything we do. We truly believe that by collaborating with people with different experiences we drive innovation, which is essential for our future growth. We encourage people from all backgrounds to apply and realize their full potential as part of our Ericsson team. Ericsson is proud to be an Equal Opportunity Employer. learn more.
Primary country and city: India (IN) || Mumbai
Req ID: 788585
Skills Required
- 8-14 years of experience in Telecom Core Network Operations
- Expertise in CS Core network technologies and subscriber management platforms
- Hands-on experience with HSS, HLR, STP, DRA, MGCF, MSS, GMSC, UDM, SCP
- Good understanding of Authentication, Roaming, and VoLTE functionalities
- Experience troubleshooting network and service-level issues, OEM coordination, and incident management
- Experience in network monitoring, KPI analysis, traffic management, and operational support
- Knowledge of incident, ticket, and work order management processes
- Ability to work flexible shifts and support 24x7 operations
- Strong communication, stakeholder management, and problem-solving skills
- Exposure to multi-vendor telecom environments, preferably Nokia, Oracle, Huawei, and Ericsson
- Academic credentials must be from recognized and accredited institutions (subject to verification)
What the Team is Saying
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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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