We are looking for a VoIP SME with ISP/Telecom network expertise to design, implement and manage end to end VoIP services for enterprise customers. This role involves configuring Juniper PE-to-CE connectivity, optimizing SIP call flows, provisioning Nokia switches and deploying SBC configuration

- This is a permanent work from office role and there is no work from home option available.
- Shift timings will follow the Australian time zone starting at 2:00 AM/ 3:00 AM (IST) based on business requirements. Week offs will be rotational.
- Public and festive holidays will follow the Australian calendar.
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- Design, provision, activate and support end-to-end VoIP services (SIP TDM) across core voice networks and interconnect platforms.
- Configure and validate voice routing, dial plans, numbering structures and call flows.
- Configure and manage SIP trunks and interconnects.
- Provision services across access, aggregation (Carrier Ethernet) and core network elements.
- Configure customer-facing CPEs and network devices as required.
- Configure and troubleshoot Juniper PE-to-Customer CE connectivity for VoIP/data, including BGP/OSPF, static routes, NAT and QoS.
- Execute service activation, migration and cutover activities with minimal customer impact.
- Perform pre- and post-change validations, including test calls and service acceptance testing.




- Support planned network changes and maintenance windows (day/night).
- Adhere to change management processes and quality gates.
- Maintain accurate documentation, configurations and as-built records.
- Perform Level 2 troubleshooting and prepare RCA reports for quality related issues.
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- Bachelor's degree (B.E./B.Tech) in Electronics, Computer Science, Telecommunications or a related discipline or equivalent experience.
- Minimum 10+ years of experience in a Tier 1 or Tier 2 telecommunication provider/ISP within the Fixed Voice domain.
- Mandatory to hold one of certifications: Cisco- CCNP Collaboration, Juniper JNCIP-SP, Nokia NRS or Ribbon SBC (vendor specific certifications).
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- Expertise in VoIP and SIP call-flow engineering, including SIP, VoIP, ISDN, and PSTN.
- Solid understanding of IP networking concepts such as TCP/IP, routing, QoS, and VLANs.
- Vendor specific expertise level skills: Juniper, SIP, Nokia Ribbon SBC.
- Optional vendor skills: Oracle SBC, C20 Softswitch, Nortel CS2K, and Alcatel-Lucent Voice Platforms.
- Excellent verbal and written communication skills, with the ability to effectively engage stakeholders.
- High resilience, strong problem-solving ability, and a customer-first mindset.

📌 Manager - Capacity Planning & Management (Pune)
🏢 Tata Communications
📍 Pune