Mobile Network Engineers, Malaysia

Cellusys Academy; Kuala Lumpur; Hybrid; MYR 60,000 - 90,000; Full time

Job summary

Cellusys Academy is looking for a hands-on professional to identify and resolve signalling and SMS firewall issues, and to deliver tailored solutions for enhanced network performance. The role is home-office based with weekly meetings in Kuala Lumpur, Malaysia.

The ideal candidate has a ICT-related degree and at least 1 year in Mobile Operator Core CS/PS, with strong knowledge of signalling protocols, Linux, Wireshark, and Elasticsearch/Grafana. Proficient English is required.

Qualifications

• Bachelor's degree in ICT domain (Telecommunications preferable).
• At least 1 year of experience in Mobile Operator Core network CS/PS.
• Strong knowledge of signalling protocols, Linux, Wireshark, and data tools such as Elasticsearch and Grafana.
• Strong presentation and communication skills.
• English proficiency (reading, writing, speaking).
• Comfortable working with servers in customers' data centres.

Responsibilities

• Configure firewall rules to defend against threats and prevent revenue leakage
• Optimise roaming services and apply steering rules
• Classify SMS traffic using signature-based detection
• Build and deliver custom reports based on network behaviour and performance
• Run regular health checks across hardware, OS, and firewall modules
• Respond to technical issues raised via tickets or direct requests
• Investigate and troubleshoot faults identified during checks or by operators
• Carry out penetration tests and honeypot validation exercises

Skills

English proficiency

Presentation & communication

Education

Bachelor's degree in ICT domain (Telecommunications preferable)

Tools

Linux

Wireshark

Elasticsearch

Grafana

Networking tools

Job description

About The Role

You’ll be hands‑on identifying and resolving issues in signalling firewall, SMS firewall, and roaming, and delivering tailored solutions and reports to improve network performance.

This position is open to local applicants with the legal right to work in Malaysia. Home office based, with weekly meetings in Kuala Lumpur.

Responsibilities

• Configure firewall rules to defend against threats and prevent revenue leakage
• Optimise roaming services and apply steering rules
• Classify SMS traffic using signature‑based detection
• Build and deliver custom reports based on network behaviour and performance
• Run regular health checks across hardware, OS, and firewall modules
• Respond to technical issues raised via tickets or direct requests
• Investigate and troubleshoot faults identified during checks or by operators
• Carry out penetration tests and honeypot validation exercises

Qualifications & Experience

• Bachelor's degree in ICT domain (Telecommunications preferable)
• At least 1 year of experience in Mobile Operator Core network CS/PS
• Strong knowledge of signalling protocols, Linux, Wireshark, and data tools such as Elasticsearch and Grafana
• Strong presentation and communication skills
• English proficiency (reading, writing, speaking)
• Comfortable working with servers in customers' data centres