Lead VOIP Engineer

India Haryana Gurgaon, IndiaOn-site

Responsibilities

Build and optimize SIP call routing logic, RTP media relays , failover mechanisms, and NAT traversal.
Develop and manage configurations for scalability, codec negotiation, SIP trunk registration .
Implement and test features like call recording, IVR, voicemail, DTMF detection.
Monitor live traffic and participate in 24x7 on-call rotation for critical escalations.
Collaborate with QA on stress/load testing and with Backend teams on provisioning APIs.
Document design decisions, configurations, and troubleshooting runbooks.
Create a culture of customer obsession, with trust, teamwork and accountability.

Sprinklr is the definitive, AI-native platform for Unified Customer
By combining human instinct with the speed and efficiency of AI, Sprinklr helps brands earn trust and loyalty through personalized, seamless, and efficient customer interactions.
You’ll work on the core telephony stack involving signaling, media processing, NAT traversal, and RTP relaying.
Seniority Level: Lead Individual Contributor What You’ll Do: Implement core voice capabilities using FreeSWITCH, Kamailio/OpenSIPs, and RTPEngine.
experience building and operating VoIP systems or CPaaS platforms .
Solid expertise with SIP signaling, RTP, and media relay techniques .
Strong hands-on with FreeSWITCH, Kamailio/OpenSIPs, RTPEngine . Hands-on
experience with Session Border Controller (SBC), Media Servers and WebRTC .
Experience in managing telephony infrastructure for uptime, latency, and call quality optimization.
Strong systems programming and debugging skills in C/C++ .
Good scripting/debugging skills ( Bash, Python, or Lua for FreeSWITCH modules ).
Proficiency with diagnostic tools ( Wireshark, tcpdump etc ).
Experience working with geographically distributed infrastructure or HA deployments.
Today, Sprinklr has a unified, AI-native platform for four product suites: Sprinklr Service, Sprinklr Social, Sprinklr Marketing and Sprinklr Insights.
Sprinklr is here to do three things: Lead a new category of enterprise software that we call Unified-CXM.

Our vision was clear: to unify fragmented teams, tools and data — helping large organizations build deeper, more meaningful connections with the people they serve.
We offer you and your family voluntary healthcare coverage in countries where applicable.
We believe it is important to take time off – it is essential for your mental and physical wellbeing.
We provide Sprinklrites with paid time off to recharge and spend time with loved ones.
For full-time employees, we provide a range of comprehensive health plans, leading well-being programs, and financial protection for you and your family through a range of global and localized plans throughout the world.
Our vision is to be the world’s most loved enterprise software company, ever.

Benefits around the world, head to https://sprinklrbenefits.com/ to browse our country-specific benefits guides.

Experience Management (Unified-CXM), empowering brands to deliver extraordinary experiences at scale — across every customer touchpoint.
Job Description What Does Success Look Like? We are seeking a Lead Product (Software) Engineer-VoIP to design and build high-performance modules within our Voice platform.
This is a hands-on execution role ideal for engineers who love building, debugging, and optimizing real-time communication systems.
We focus on our mission : Sprinklr was founded in 2009 to solve a big problem: growing enterprise complexity that separated brands from their customers.
Empower companies to deliver next generation, unified engagement journeys that reimagine the customer experience.
We believe in our product : Customers who value exceptional customer experiences have what they need on our single unified platform built with an operating system approach on a single codebase.
That means that everything — and everyone — can work together to service, respond, sell, and market to customers on the channels they prefer.
Experience Management (Unified-CXM) as a category is just getting started, we are well on our way to creating a no-compromise, unified approach to better customer experiences for the world’s leading enterprise brands.
We invest in our people : We offer a comprehensive suite of
benefits designed to help each member of our team thrive.