IMS Core Engineer

OXIO
CA - Quebec - Montreal
June 27, 2024
Engineering

The IMS/VoLTE Integration Engineer will analyze, prepare, implement and verify the configuration and integration of a node, network and/or system. Your scope of work could include the scenarios of introduction, upgrade expansion, functionality and capacity. Your work will in part form our customer legacy.

Key Responsibilities:

Manage networks and nodes within the IMS domain for our 2.5G , 3G & 4G networks (SIP, H323, IMS/IMT, VoLTE, VoWiFi)
Using dashboards (and building new ones) to clearly and quickly discover issues and patterns
Accountable and responsible to follow the communications procedures in place when handling an incident. Communication is both internal within our company and external to our third-party providers.
Maintenance, troubleshooting, security audits, and emergency response
Undertake fault handling and corrective actions on node, service and infrastructure level
When needed, cover the 7x24 monitoring shift responsibilities (On call support, etc.)
Wireshark tracing of critical infrastructure to debug issues
Provide input, implement and verify improvements in processes and work instructions
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Verify and implement configuration changes
Work to identify and drive improvement

Key Qualifications:

Holding a Bachelor's Degree in Telecommunication or Computer Science (post-graduate studies are a bonus) and 10+ years core telecommunications network experience
Working knowledge of telecom networks like 2G, 2.5G , 3G and LTE (MME, SGW, PGW, and MME)
Great Conceptual understanding of IMS evolution and trends - IMS Subsystems, functionalities and IMS services call flows.
Great knowledge of IMS network topology (their various interfaces), Core IMS Parameters and Features
Worked on different type of Core Nodes, CSFB, IMS (P-CSCF, I-CSCF, S-CSCF, MTAS, HSS, CUDB, MGCF, etc.)
Experience with SS7, ISUP, BICC, SIP, H248, Diameter signaling & protocols configuration change IMS based services is necessary
Operation and maintenance of IMS platforms for Alarms, faults/abnormal conditions handling, Analysis of traces, High troubleshooting skills, system backup/restore from backup files, Fault Diagnostics, Preventive Maintenance & upgrades of IMS nodes
Configuration preparation & implementation for configuration changes requests for IMS nodes and Integration for all nodes (S-CSCF, I-CSCF, MTAS, HSS, CUDB, etc.) as well
Hands on with sniffers, Wireshark and testing tools in advanced mode
Hands on with Linux/Unix based systems (you can find your way around a linux shell)
Understanding of 3GPP, ITU-T and ANSI standards
Understanding of roaming agreements and IR.21 , including IREG testing
VoLTE Troubleshooting and call trace analysis
Strong writing and documentation skills are needed to develop reports
Adaptability and responding to change
Be able to work under pressure
You are fluent in English (written and spoken)
Ready to work on morning/afternoon shifts
Good interaction with external customers and internal teams

What We Offer:

Competitive salary and stock option incentive program
Company contribution towards comprehensive benefit packages
Company sponsored team-lunches and company retreats
International organization that enables you to work across boundaries, travel to different locations and enjoy the dynamics of a rapidly growing startup
The opportunity to work with a talented and supportive team

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Read the full job description and apply online on the recuiter's web-site

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