Core Network Engineer

PERSOL SINGAPORE PTE. LTD.; Singapore; On-site; SGD 90,000 - 170,000; Full time

Job summary

PERSOL SINGAPORE PTE. LTD. is seeking a Cloud Core Engineer to design, build, and maintain cloud core platforms (IMS, EPC) ensuring reliability, performance, and security. You will troubleshoot infrastructure issues and provide technical support for cloud-based voice and data services.

Role requires experience in 5G IMS deployments, VoLTE projects, and NFV/cloud-based network deployment within telecom environments; collaboration with regional HQ and local teams is expected.

Qualifications

• Bachelor's degree in Electrical/Electronic Engineering or related field.
• Minimum 4 years in CS/IMS network design, deployment, delivery, operations, or maintenance.
• Experience in 5G IMS site deployment, capacity expansion, and VoLTE projects is an added advantage.
• Experience in NFV/cloud-based network deployment, post-sales support, and project management in telecom/carrier environments.
• Strong knowledge of VoLTE, VoWiFi, VoBB, RCS, Cloud, NFVI and related network solutions.
• Good communication, stakeholder management and influencing skills, with the ability to engage effectively with customers and internal stakeholders at different levels.

Responsibilities

• Design, build, and maintain cloud resources and core network components.
• Troubleshoot and resolve technical issues related to infrastructure and core network applications.
• Implement and maintain security measures to protect cloud-based systems and data.
• Serve as a product SME and provide technical work independently across project delivery, network maintenance, learning services, and service product development.
• Collaborate with regional/HQ or local teams to meet delivery and service objectives.

Skills

VoLTE

VoWiFi

RCS

5G IMS

Cloud NFV

MPLS

Education

Bachelor's degree in Electrical/Telecom/CS

Job description

Job Description

• Cloud Core Engineer focuses on the foundational infrastructure and delivery of cloud core platforms e.g. IP Multimedia Subsystem (IMS), Evolved Packet Core (EPC), ensuring reliability, performance and security, troubleshooting technical issues, and provide technical support to cloud-based related voice & data services.
• Responsible to design, build, and maintain cloud resources and components, including compute instances, storage, and networking.
• Responsible to design, build, and maintain the core components base on cloud-infrastructure.
• Troubleshoot and resolve technical issues related to infrastructure and core network applications.
• Implement and maintain security measures to protect cloud-based systems and data.
• Serve as a product SME and able to works independently complete technical work in service scenarios such as project delivery, network maintenance, learning services, and service product development involving cloud core network product.
• Responsible in achieving delivery & service business objectives in aspects like network management baselines, efficiency, costs, quality or competitiveness.
• Require to work as a team with either regional/HQ or local team.
• Require to work under minimum supervision to complete tasks assigned.
• Require to be able to present technical solution professionally and have technical training for local channel partners and customers.

Job Requirements

• Bachelor’s degree or equivalent qualification in Electrical & Electronic Engineering, Telecommunications Engineering, Computer Engineering, Information Technology, or a related field.
• Minimum 4 years of relevant experiencein CS/IMS network design, deployment, delivery, operations, or maintenance, preferably within the telecommunications industry.
• Experience in 5G IMS new-site deployment, capacity expansion, and VoLTE-related projectsis an added advantage.
• Experience in NFV/cloud-based network deployment, post-sales support, and project managementwithin the telecommunications or carrier environment is an added advantage.
• Strong technical knowledge of VoLTE, VoWiFi, VoBB, RCS, Cloud, NFVIand related network solutions, with experience supporting major mobile operators.
• Good communication, stakeholder management and influencing skills, with the ability to engage effectively with customers and internal stakeholders at different levels.
• Knowledge of IMS network elements, including CSCF, HSS, AS, MGCF, AGCF, ENUM, MRFC, MRFP and SBC, will be an added advantage.
• Knowledge of CS Core Network technologies, including MSC/MGW, VNF, TCP/IP, VLAN, MPLS and VRRP, will be an added advantage.
• Strong problem-solving skills, self-motivation and a willingness to take ownership of assigned responsibilities and learn new technologies.
• Adaptable and flexible, with the ability to work effectively across different projects, responsibilities and business requirements.
• Able to work collaboratively with cross-functional and multicultural teams in a fast-paced technology environment.