Network Engineer (5G RAN or 5G Core)

Role: Network Engineer (5G RAN or 5G Core)

Location: Singapore

We are currently partnering with a leading technology-driven telecommunications organization that is scaling rapidly to support new digital initiatives and platforms. As part of this expansion, multiple roles are open across key functions to help build, maintain, and enhance next-generation solutions. This opportunity offers exposure to large-scale systems, innovative technologies, and a collaborative environment where skills and ideas make a real impact.


Responsibilities

5G Core Architecture & Design Authority for NaaS initiatives:Serve as the Teams’s expert on 3GPP 5G Core standards (Release 16/17/18), including detailed knowledge of SBA, NFs (AMF, SMF, UPF, NRF, NSSF, PCF, UDM, AUSF), and interfaces (N1-N15, N22, N29). Provide deep technical guidance on the integration of Network Exposure Functions (NEF) for CAMARA/GSMA Open Gateway API implementation and drive the Open gateway initiatives for technical implementation.

Network Slicing Expertise: Architect the implementation of E2E network slicing from the Core perspective, providing expert advice on the role of core functions such as NSSF, NRF, and PCF in slice selection, authentication, and policy enforcement in 5G dynamic slicing platform.

Open API Strategist: Architect the integration between the 5G Core's Network Exposure Function (NEF) , HSS and the CAMARA service layer. Provide expert-level design input for implementing and customizing GSMA Open Gateway APIs (e.g., Device Location, Quality on Demand, Number Verification).

Technical Leadership & Cross-Functional collaboration:Act as the primary technical point of contact for the Orchestration team, ensuring their automation and orchestration logic accurately interacts with 5G Core NFs via standard interfaces. Project management for the Network slicing and Open gateway projects with team and take forward the successful implementation.

Standards & Innovation:Maintain a cutting-edge understanding of 3GPP developments and contribute to architectural decisions that prepare the platform for future releases.

Requirements:

• At least 3 years of experience in telecommunications network architecture, with focus on 4G EPC
• Experience with the lifecycle management of 5G Core Network Functions in a cloud-native environment (VMs, Containers, Kubernetes) is nice to have
• Ability to design or implement solutions involving the Network Exposure Function (NEF) and API frameworks (e.g., CAMARA).
• Strong experience in 5G Core ( with experience in UPF SMF AMF, UDM, AUSF, NSSMF,etc.) OR in 5G RAN (5G RAN ( radio, ORAN, BBU, CU, DU, etc)
• Deep understanding of the 5G Core's role in End-to-End Network Slicing
• Knowledge of Kubernetes, containers, Orchestration and the CNCF landscape

UEN: 202329526G

EA Licence: 23S2061