Role: Engineer/ Senior Enigneer - Mobile Core Planning/ Project Planning Location: Singapore We are partnering with a leading organisation to hire a 4G/5G Mobile Core Network Engineer to support network planning, deployment, optimisation, and next-generation mobile initiatives. About the Role You will be involved in the planning, deployment, and optimisation of 4G/5G mobile core network infrastructure, supporting network expansion, roaming services, and enterprise 5G initiatives. This role offers exposure to cutting-edge mobile technologies, cloud-integrated telecom environments, and large-scale network projects. Responsibilities • Perform capacity planning and dimensioning for 4G/5G Mobile Core network elements integrated with IP and cloud infrastructure • Support network expansion, upgrades, integration, and deployment activities • Monitor network performance and ensure service reliability and functionality • Support roaming-related projects and new mobile commercial service launches • Conduct technical feasibility studies, testing, and trials for emerging technologies • Support enterprise 4G/5G projects and IMDA 5G initiatives • Collaborate with internal teams and vendors to ensure smooth implementation and operational readiness Requirements • Degree in Electronics, Telecommunications Engineering, or related field • 1–5 years of experience in the telecommunications industry • Hands-on knowledge of 4G/5G Mobile Core technologies and associated protocols • Familiarity with: • MME / AMF • SPGW / SMF / UPF • SDM, PCRF / PCF • IMS, VoWiFi, VoNR, NEF • Understanding of: • IP networking and routing protocols • API communication • Network and application security • Basic programming/scripting skills • Knowledge of application protocols and OTT services is advantageous • Willingness to support occasional night deployment activities