Engineer - Core Network Operations

Job Description

Accountable for meeting and prioritising assigned tasks, targets, and deadlines.

Responsible for self-learning and development with guidance from the manager.

Ensure cohesive working with other team members.

Provide information to the manager on work accomplishments and individual or team challenges.

Review performance metric dashboards prepared on various metrics and provide input to the manager.

Provide support to planning, business, and regional network activities.

Ad hoc and Operational Meetings

• Participate in operational meetings as required and provide inputs.
• Set up and manage ad hoc meetings for day-to-day operational needs as required.
• Report at process and functional level.

Escalations

• Escalate issues that will result in significant time, scope, employee/client, or cost impact if not resolved.
• Provide solutions to issues that require formal resolution.

Performance

• Ensure effective execution of day-to-day operations and resolution of operational issues.
• Improve productivity and quality through leading practice initiatives.

Reporting

• Report on daily checks (CS&PS core nodes).
• Identify key risks, issues, and dependencies, and propose mitigation actions.
• Provide suggestions regarding operational changes.

Responsibilities

Operational Delivery

• Participate in core network (circuit switch, packet switch) area troubleshooting, remote/on-site support, and emergency recovery activities.
• Be involved in system/function verification, trial projects, and support activities.
• Provide technical support in core network (circuit switch, packet switch) areas to the marketing unit, customer service, and other departments.
• Perform new product lab tests, customer environment qualification, and integration.
• Ensure effective maintenance of PS and CS network elements and implementation of network requirements and specifications to support business strategic services and products.
• Liaise with sales engineers and other technical staff to troubleshoot global network problems.
• Perform full system tests daily as required by circumstances.
• Develop and maintain a knowledge base for core network technologies.
• Prepare and provide consulting support to project teams as the need arises.
• Follow up on installations and preventive maintenance on ERICSSON nodes (MSC, MSS, MSC-S Blades, SGSN-MME, GGSN/EPG, BSC, RNC, MGW, SBG HLR-FE, HSS-FE, EIR-FE, CUDB, IMS, vSBG, IPWORKS) and HUAWEI nodes (BSC, RNC, CloudMSE, CloudPCRF, SBC, etc.).
• Oversee software upgrades in core nodes (PNF, VNF, CNF).
• Manage and coordinate roaming configurations and routine tests.
• Coordinate disaster recovery testing and reporting.
• Prepare daily, weekly, and monthly reports for management and relevant group functions.
• Act as a liaison between the network managed service (MS) vendor and the IT team and/or IT MS vendor.

Qualifications

Education and Qualifications

• Baccalaureate in electrical/electronic or telecommunications engineering.
• A master’s degree in telecoms or equivalent would be an advantage.
• At least 4 years of work experience in a medium to large telecoms company.
• Experience in troubleshooting TCP/IP with protocol analyzers, Wireshark, legacy core network operations, and roaming cloud-based systems, etc.
• Experience with ERICSSON and HUAWEI core equipment portfolios will be desirable.

Training

• ERICSSON Centralized User Database (CUDB) 13B Operation and Service Configuration.
• HUAWEI Mobile Core Network Fundamental & UPCC Operation and Maintenance Training.
• GSM System Survey and GPRS System Survey.
• ISO 9001:2015 Quality Management System - Requirements / ITIL V3 frameworks.
• Any other relevant training.

Knowledge

• Understanding of 3GPP, ITU-T, and ANSI standards.
• Circuit and packet switched communications protocols such as SS7 (including SCCP, TCAP, MAP, and CAMEL phases 1 to 4), SCTP (SIGTRAN), Diameter, including the ability to design and configure voice, data, and messaging flows.
• Voice SIP/RTP, ISUP, and voice convergence technologies, including IMS (including VoLTE and VoWiFi).
• Online charging system (OCS) and CAMEL in billing and call control.
• Core network virtualization and cloudification.

Skills

• Basic understanding of telecom network key technology is preferred.
• Familiarity with 3GPP, ITU-T standards, core network, and flow is preferred.
• Voice SIP/RTP, ISUP, and voice convergence technologies, including IMS (including VoLTE and VoWiFi).
• Hands-on experience with sniffers, Wireshark, and testing tools in advanced mode.
• Experience with mobile networks (2G/3G/4G/5G), international signaling, and international interconnects is a strong plus.
• Extensive experience with complex signaling interoperability within next-generation intelligent networks.
• Problem solver.
• Quality- and efficiency-minded, with analytical thinking.
• Quick learner, willing to take on challenges, and thriving in a fast-paced, high-pressure environment.

Behavioral Qualities

• Decisive problem solver.
• Detail-oriented.
• Highly organized.
• Proactive and creative.
• Manages time well.
• Open-minded.
• Open and trustworthy.
• High orientation towards customer needs.

How to Apply

All applications must be submitted online at the provided link.