Senior Lead - VOIP Engineer

Job Description

What Does Success Look Like?

We are looking for a Principal VOIP Engineer to lead the architecture and technical direction of our next- gen voice infrastructure. You’ll be responsible for building carrier- grade systems with high availability, low latency, and global scalability — powering mission-critical voice communication in our CCaaS platform. This is a hands-on leadership role where you will influence architecture, establish best practices, and work cross-functionally across Engineering, DevOps, Product, and QA teams.

Seniority Level: Principal / Individual Contributor with technical leadership scope

What You’ll Do

• Design and implement VOIP (signaling and media) infrastructure using FreeSWITCH, Kamailio/OpenSIPs, and RTPEngine
• Architect session border controllers (SBC), NAT traversal, load balancing, and failover strategies
• Define standards for call routing and audio quality optimization (codecs, jitter, etc.)
• Lead initiatives for scalability, observability, security, and resiliency of our voice infrastructure
• Troubleshoot live traffic and provide technical leadership during major incidents
• Collaborate with Backend and API teams to design provisioning, billing, and call analytics APIs
• Evaluate and onboard open-source tools or commercial carriers as needed
• Coach and mentor junior/lead engineers in VoIP best practices

What Makes You Qualified?

• 12+ years of hands-on experience in the Telephony / VoIP / CPaaS domain
• Strong knowledge of VoIP Protocols (SIP/SDP, RTP/RTCP), Networking fundamentals (UDP/TCP/IP, DNS, MPLS), QoS (latency, jitter, packet loss migration).
• Hands-on experience with Session Border Controller (SBC), Media Servers and WebRTC.
• Expert-level understanding of SIP, RTP, NAT traversal (ICE/STUN/TURN), and VoIP security (TLS, SRTP, fraud prevention)
• Hands-on development experience with FreeSWITCH, Kamailio/OpenSIPs, and RTPEngine
• Experience in designing carrier-grade telephony platforms serving millions of calls
• Strong systems programming and debugging skills in C/C++
• Strong troubleshooting skills, with experience using network monitoring and debugging tools.
• Familiarity with distributed systems and cloud-based deployments (AWS, GCP, Azure)
• Excellent problem-solving, debugging, and performance tuning skills

Why You'll Love Sprinklr:

We're committed to creating a culture where you feel like you belong, are happier today than you were yesterday, and your contributions matter. At Sprinklr, we passionately, genuinely care. 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.

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

We focus on our mission: We founded Sprinklr with one mission: to enable every organization on the planet to make their customers happier. Our vision is to be the world’s most loved enterprise software company, ever.

We believe in our product: Sprinklr was built from the ground up to enable a brand’s digital transformation. Its platform provides every customer-facing team with the ability to reach, engage, and listen to customers around the world. At Sprinklr, we have many of the world's largest brands as our clients, and our employees have the opportunity to work closely alongside them.

We invest in our people: At Sprinklr, we believe every human has the potential to be amazing. We empower each Sprinklrite in the journey toward achieving their personal and professional best. For wellbeing, this includes daily meditation breaks and virtual fitness. We have continuous learning opportunities available with LinkedIn Learning and more.

EEO - Our philosophy: Our goal is to ensure every employee feels like they belong and are operating in a judgment-free zone regardless of gender, race, ethnicity, age, and lifestyle preference, among others. We value and celebrate diversity and fervently believe every employee matters and should be respected and heard. We believe we are stronger when we belong because collectively, we’re more innovative, creative, and successful.

Sprinklr is proud to be an equal-opportunity workplace and is an affirmative-action employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or Veteran status. See also Sprinklr’s EEO Policy and EEO is the Law.

Warning about Recruiting Scams:

Please be vigilant for recruiting scams impersonating Sprinklr. Sprinklr will never ask you for money, to pay for equipment, or for unnecessary personal information during the interview process. Sprinklr will also never pay in Bitcoin or send email communications from our executives. Please review the Federal Trade Commission's advice to avoid these types of scams.

If you are contacted by someone whom you suspect may not be appropriately representing Sprinklr, please do not engage and block their email or phone number immediately.