Principal Engineer SIP protocol

Tekskills; Chennai District; Hybrid; INR 3,500,000 - 6,000,000; Full time

Job summary

Tekskills is seeking a Principal Engineer with deep SIP protocol expertise to lead telecom voice systems design and implementation. You will influence call routing, signaling, and session management across complex networks.

The role requires hands-on work with SBCs, media gateways, and softswitches, and involves cloud-native voice solutions, IMS migration, and collaboration with cross-functional teams.

Qualifications

• Minimum 10 years of experience in telecom voice systems and SIP-based architectures.
• Strong expertise in SIP protocol, call flows, and session management.
• Experience in IMS platform migration or replacement, ideally involving Ericsson IMS.
• Deep understanding of call processing logic, routing, and signaling across voice networks.
• Hands-on experience with SBCs, media gateways, and softswitches.
• Ability to design and implement scalable, cloud-native voice solutions.
• Skilled in troubleshooting SIP signaling issues and optimizing call performance.
• Experience working with vendor products for IMS replacement and integration.
• Strong communication and documentation skills for cross-functional collaboration.

Responsibilities

• Design and implement scalable SIP-based voice solutions.
• Lead testing and optimization of SIP signaling and call flows.
• Collaborate with cross-functional teams to migrate IMS platforms.
• Evaluate vendor products for IMS replacement and integration.

Skills

SIP protocol

VoIP & IMS

Call routing & signaling

SBCs & gateways

Cloud-native voice

Vendor IMS replacement

Technical documentation

Cross-functional collaboration

Job description

Job Description: Principal Engineer SIP protocol

Experience Required: 8+ years

Location : Bangalore, Chennai, Pune (Hybrid)

Notice Period : Immediate

Skill Set:SIP protocol

Detailed- JD:

• Minimum 10 years of experience in telecom voice systems and SIP-based architectures.


• Strong expertise in SIP protocol, call flows, and session management.


• Proven experience in IMS platform migration or replacement, ideally involving Ericsson IMS.


• Deep understanding of call processing logic, routing, and signaling across voice networks.


• Hands-on experience with SBCs, media gateways, and softswitches.


• Ability to design and implement scalable, cloud-native voice solutions.


• Skilled in troubleshooting SIP signaling issues and optimizing call performance.


• Experience working with vendor products for IMS replacement and integration.


• Strong communication and documentation skills for cross-functional collaboration.