Ericsson Core Network Architect

About the role

We are looking for an experienced Ericsson Core Network Architect to design, implement, and optimise next‑generation 4G/5G core network solutions. You will work closely with engineering, operations and customer teams to deliver secure, high‑performance packet‑core and IMS architectures.

Key responsibilities

• Design High‑Level and Low‑Level Designs for Ericsson 4G/5G Core (SA and NSA) solutions.
• Lead deployment, integration and configuration of Core Network Functions (CNFs) and Virtual Network Functions (VNFs) in cloud‑native environments.
• Translate business and technical requirements into scalable network designs.
• Plan capacity, optimise performance and manage the lifecycle of core platforms.
• Execute software upgrades, migrations and system enhancements with minimal service impact.
• Troubleshoot complex signalling and user‑plane issues and ensure timely resolution.
• Support network integration, interoperability and end‑to‑end validation activities.
• Ensure designs comply with industry standards, security policies and Ericsson best practices.
• Maintain technical documentation, architecture diagrams and implementation guides.
• Provide technical leadership to engineering teams and support customer engagements.

Required profile

• Bachelor’s degree in Telecommunications, Computer Science, Engineering or a related field.
• Minimum 8 + years of experience in telecom core network architecture, solution design or deployment.
• Strong expertise in Ericsson 4G/5G Core technologies and 3GPP standards.
• In‑depth knowledge of core functions such as AMF, SMF, UPF, MME, SGW, PGW, NRF, DNS and IMS.
• Proven experience with NFV/SDN, Docker, Kubernetes, OpenShift and cloud‑native platforms.
• Excellent analytical, problem‑solving and stakeholder‑management skills.

Required skills

• Ericsson 4G/5G Core Network technologies
• 3GPP standards
• Core functions: AMF, SMF, UPF, MME, SGW, PGW, NRF, DNS, IMS
• Telecom protocols: TCP/IP, QUIC, SS7
• NFV, SDN
• Docker, Kubernetes, OpenShift
• Cloud‑native platforms
• Wireshark
• Python
• SQL
• Tableau (advantage)
• Agile methodologies