# Senior Network Engineer (Voice & IPX)

**Company**: Telstra
**Location**: Chennai, Tamil Nadu
**Experience**: senior
**Job type**: full-time
**Category**: Engineering
**Industry**: Technology

**Apply**: https://telstra.wd3.myworkdayjobs.com/en-US/Telstra_Careers/job/ChennaiTamil-Nadu/Senior-Network-Engineer--Voice---IPX-_JR-10175651-1?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_a38f0793-5a1

## Description

As a Senior Network Engineer (Voice & IPX), you'll help shape the future of Telstra's international mobility, voice, and interconnect capabilities.

This individual contributor role is responsible for ensuring Telstra's international network delivers a reliable, high-quality experience for interconnect and roaming partners, suppliers, and customers. You'll contribute to the analysis, architecture, design, development, deployment, and optimisation of network technologies, with a strong focus on interoperability across multiple network domains.

You'll drive technology evolution across Telstra's International Core Voice, IPX, and Mobility/Roaming platforms, delivering scalable and resilient solutions supporting international voice, mobility and roaming services, signalling platforms, and specialised international network services.

**Responsibilities**

- Design, develop, deploy, and optimise solutions across International Voice, IPX, Mobility, and Roaming networks.

- Drive network transformation through NFV, cloud adoption, automation, and software-defined networking.

- Deliver secure, scalable, high-performing interconnect and roaming solutions.

- Provide specialist expertise across signalling, voice, IPX, roaming, and interconnect, ensuring integration with adjacent network technologies.

- Support Cisco and Juniper switching and routing infrastructure across the International Voice and IPX networks.

- Manage Check Point firewalls and network security controls, ensuring compliance with Telstra security policies and standards.

- Manage deployment, configuration, and lifecycle of Oracle DSR, Ribbon SBC and PSX, and A2P SMS platforms.

- Manage and support the infrastructure, virtualisation, and orchestration layers hosting International platforms and applications.

- Collaborate with internal stakeholders, international partners, customers, and vendors to deliver strategic network capabilities.

- Lead troubleshooting and resolution of complex network issues to maintain service availability and customer experience.

- Manage hardware and software currency, security patching, resiliency assessments, and sustainability requirements.

- Produce and review High Level Designs, test plans, and Methods of Procedure, and execute changes under Telstra change governance.

- Contribute to network strategy, technology roadmaps, architecture standards, and continuous improvement.

**What We Offer**

- Performance-related pay

- Access to thousands of learning programs so you can level-up

- Global presence across 22 countries; opportunities to work where we do business.

- Purchased annual leave scheme

- Additional Telstra day off

- Additional 30% off Telstra products and services

- Toolkit provided (laptop + mobile phone + plan paid for)

**Your Technical Expertise**

- Strong knowledge and experience across Voice & IPX, protocols, IP & Security, virtualisation & orchestration, network domains, monitoring & assurance, and lifecycle management.

**About You**

- Bachelor’s degree in Telecommunications Engineering or a related discipline, or equivalent relevant technical qualifications.

- Minimum 8 years’ relevant experience in voice, signalling, IPX, and/or mobility/roaming network engineering.

- Strong understanding of international Voice, IPX, Mobility/Roaming, and carrier interconnect requirements.

- Hands-on experience with Oracle DSR, Ribbon SBC and PSX, and A2P SMS platforms, including deployment and management.

- Experience configuring and supporting Cisco and Juniper switches and routers in carrier-grade environments.

- Experience managing Check Point firewalls and network security controls.

- Sound knowledge of virtualisation, NFV, cloud-native architectures, and orchestration platforms.

- Sound understanding of SIP, Diameter, SS7/SIGTRAN, and IP networking protocols.

- Experience as a technical lead on medium to large engineering projects, preferably across voice or mobility networks.

- Ability to review technical solutions, conduct impact analysis, and plan controlled implementations.

- Strong analytical, problem-solving, and root-cause analysis skills.

- Excellent interpersonal, vendor, and stakeholder management skills.

- Certifications such as CCNP, JNCIP, Check Point CCSA/CCSE, or Red Hat will be highly regarded.

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## Skills

### Required
- Oracle DSR
- Ribbon SBC and PSX
- A2P SMS
- Cisco switching and routing
- Juniper switching and routing
- Check Point firewalls
- NFV
- cloud-native architectures
- orchestration
- automation
- VoIP
- SIP
- TDM
- IPX
- Diameter
- SS7/SIGTRAN
- LTE
- 3G/4G/5G
- VoLTE/IMS

### Nice to have
- CCNP
- JNCIP
- Check Point CCSA/CCSE
- Red Hat

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Source: [Apply at telstra.wd3.myworkdayjobs.com](https://telstra.wd3.myworkdayjobs.com/en-US/Telstra_Careers/job/ChennaiTamil-Nadu/Senior-Network-Engineer--Voice---IPX-_JR-10175651-1?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)