Purpose:
Provide planning and implementation support to 4G/5G Mobile Core nodes and Network Functions pertaining to Mobile Messaging and roaming related service support
Responsibilities:
- Planning and dimensioning of Mobile 4G and 5G messaging and roaming related Network nodes, IP nodes and cloud infrastructure
- Administrate and manage the SMS firewall system to protect the mobile network against SMS-based message attack
- Implement project work plans for network expansions, upgrades and integration tasks
- Monitor network performance and ensure proper working conditions of the Mobile messaging and roaming related elements
- Implement roaming related projects and support the development of new mobile commercial services and initiative
- Technical feasibility study or trial on new emerging technologies
Requirements
- Appropriate qualification in Electronics/ Communications/ Networking or equivalent
- Relevant experiences preferred though not necessary
- Good technical knowledge of Short Message Service call flows and associated protocols
- Basic knowledge of Mobile 4G and 5G network and other related portfolio such as IMS
- Basic understanding of Network and Application Securities
- Basic knowledge of API communication
- Good knowledge of IP switching and routing protocols
- Basic proficiency in programming and scripting skills
- Experiences and understanding of the SS7 protocol, Sigtran and Diameter
- Occasional work during late night maintenance window period
