MS Core Cloud Specialist - VAS (Multi-Vendor)

Ericsson AB; Sydney; On-site; AUD 180,000 - 260,000; Full time

Job summary

Ericsson in Sydney, NSW is seeking a highly skilled MS Core Cloud Specialist – VAS to join our team in Sydney, NSW. This role focuses on multi-vendor VAS platforms including messaging, charging, roaming, API gateway, voicemail, eSIM, and IoT services, supporting mission‑critical value-added services for Australian customers.

You will provide L2 operational support, troubleshoot incidents, perform maintenance, and drive automation while coordinating with OEMs and customer teams.

Qualifications

• 15+ years in telecom Value Added Services (VAS) or related network services.
• Experience supporting large-scale carrier-grade environments.
• Experience with multi-vendor VAS platforms (Ericsson, Nokia, Mavenir, etc.).
• Strong Linux/Unix OS administration skills.

Responsibilities

• Provide L2 operational support for VAS platforms, ensuring high availability and service continuity.
• Perform advanced troubleshooting and fault isolation for application, platform, and network-related incidents.
• Restore services within agreed SLA/OLA targets by identifying and resolving technical issues.
• Analyze application, system, and network logs to determine root cause and implement corrective actions.
• Execute planned maintenance, software upgrades, patching, and configuration changes as per approved Change Requests.
• Prepare, review, and execute Method of Procedure (MOP) documents, including rollback and validation activities.
• Perform preventive health checks, capacity monitoring, and performance optimization of VAS platforms.
• Support Incident, Problem, Change, and Major Incident Management processes in line with best practices.
• Perform Root Cause Analysis (RCA) for recurring or critical incidents and recommend permanent fixes.
• Coordinate with L1 Operations, L3 Engineering, OEM vendors, and customer teams for issue resolution.
• Support platform administration including application services, interfaces, databases, certificates, and system configurations.
• Troubleshoot telecom protocols and interfaces such as SIP, SMPP, SS7, Diameter, HTTP/HTTPS, and REST APIs.
• Validate service functionality after maintenance activities and ensure successful post-implementation verification.
• Monitor platform performance, identify potential risks, and proactively mitigate service-impacting issues.
• Support Disaster Recovery (DR), Business Continuity (BCP), backup, and restoration activities.
• Develop and maintain technical documentation, SOPs, knowledge articles, and operational runbooks.
• Drive automation and process improvement initiatives to enhance operational efficiency and reduce manual effort.
• Participate in technical bridge calls, customer meetings, and OEM discussions during critical incidents and planned activities.
• Ensure compliance with security policies, operational standards, and audit requirements.
• Provide technical guidance and knowledge transfer to L1 teams while mentoring junior engineers.
• Support multi-vendor VAS platforms including Ericsson, Nokia, Mavenir, Mobileum, Ribbon, Agnity, Apigee, Movius, and NVP technologies.
• Ensure accurate incident documentation, timely stakeholder communication, and adherence to Ericsson Managed Services operational processes.

Skills

Linux/Unix administration

VAS operations experience

Tools

SMSC

MMSC

OCS

IN

IVR

API Gateway

Voicemail

Roaming

eSIM

IoT

SIP

Diameter

Job description

Ericsson in Sydney, NSW is seeking a highly skilled MS Core Cloud Specialist – VAS to join our team in Sydney, NSW. This role focuses on multi-vendor VAS platforms including messaging, charging, roaming, API gateway, voicemail, eSIM, and IoT services, supporting mission‑critical value-added services for Australian customers.

You will provide L2 operational support, troubleshoot incidents, perform maintenance, and drive automation while coordinating with OEMs and customer teams.