5G Core Senior Engineer (SME)

Cygnify

Singapore, Singapore, Singapore permanent

Posted: January 18, 2026

Job Description

Role: 5G Core Senior Engineer (NaaS)
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.

Role Summary:

• We are seeking a 5G Core Senior Engineer—an expert whose depth of knowledge in 3GPP 5G Core standards is unparalleled. As the SME for 5G Core & NaaS Architecture, you will be the ultimate technical authority within our team.
• Your primary mandate is to ensure our NaaS platform are developed with use cases such as 5G Dynamic slicing, GSM Open gateway API’s, implemented, and optimized to serve as the robust foundation for our Dynamic Network Slicing and API initiatives.
• Subject Matter expert: As an 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).

Requirements:
• At least 4 years of experience in telecommunications network architecture, with focus on 4G EPC and, predominantly, 5G Core network design and implementation.
• Hands-on experience with the lifecycle management of 5G Core Network Functions in a cloud-native environment (VMs, Containers, Kubernetes)
• Proven experience designing or implementing solutions involving the Network Exposure Function (NEF) and API frameworks (e.g., CAMARA)
• Deep understanding of the 5G Core's role in End-to-End Network Slicing.
• Knowledge of Kubernetes, containers, Orchestration and the CNCF landscape.
• Familiarity with DevOps practices and CI/CD pipelines will be a plus.
• Basic knowledge of programming languages C or Java is a plus

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