Telephony Engineer

Job Description - Telephony Engineer

Role: Telephony Engineer

Employment Type: Full-Time

Experience: 3+ Yrs

Location: Noida (On-site)

Qualifications preferred:

● Bachelor's degree in Computer Science, IT, Electronics & Communication or a related field.

● Experience in designing and managing large-scale VoIP, SIP or telephony platforms in production environments.

● Familiarity with cloud platforms (AWS, GCP), containerization (Docker/Kubernetes) or distributed systems is a plus.

● Exposure to AI-powered voice solutions, IVR systems or high-volume outbound calling platforms is preferred.

About the Role:

Every seamless conversation starts with a reliable call infrastructure and that's where you come in.

We're looking for a Telephony Engineer to build, optimize and scale the systems that power our voice communication platform. You'll work on high-volume telephony solutions, collaborate with cross-functional teams and ensure our calling infrastructure delivers exceptional performance, reliability and scalability.

WHAT YOU'LL DO:

Build & Scale:

● Design, build and optimize telephony systems that power high-volume voice communications.

● Develop scalable voice solutions that deliver reliable, low-latency and high-quality calling experiences.

● Continuously enhance system performance, scalability and availability to support growing business needs.

Integrate & Deliver:

● Build and integrate voice services with internal platforms, APIs and business applications.

● Develop and enhance calling features such as inbound, outbound, click-to-call, conferencing and IVR solutions.

● Ensure seamless deployment and operation of new telephony features across production environments.

Monitor & Optimize:

● Monitor system health, troubleshoot call quality issues including jitter, latency, packet loss, codec negotiation and NAT traversal and proactively resolve performance bottlenecks.

● Identify risks early and implement improvements that enhance reliability, security and operational efficiency.

● Maintain technical documentation, architecture diagrams and operational runbooks.

Collaborate & Innovate:

● Work closely with Product, Backend, DevOps and Infrastructure teams to deliver robust voice solutions.

● Stay up to date with emerging telephony technologies and industry best practices.

● Contribute ideas and innovations that improve the scalability, resilience and user experience of our voice platform.

WHAT WE'RE LOOKING FOR:

Experience & Skills:

● 3+ years of experience in Telephony Engineering, VoIP or a similar role.

● Strong problem-solving skills with the ability to troubleshoot and optimize complex telephony systems.

● Experience building, deploying and maintaining scalable voice communication platforms.

● Ability to collaborate effectively with cross-functional teams in a fast-paced environment.

Technical Knowledge:

● Strong expertise in Asterisk, SIP protocols, WebRTC and VoIP technologies.

● Hands-on experience with Linux, shell scripting, networking fundamentals (RTP, UDP, audio codecs such as G.711 and Opus), APIs and telephony integrations.

● Familiarity with cloud platforms, distributed systems, load balancing, failover, horizontal scaling and monitoring tools for high-availability deployments.

● Understanding of telephony security (including SIP TLS and SRTP), call routing, audio codecs, Session Border Controllers (SBCs) and performance optimization.

● Experience with call recording, transcription pipelines and telephony fraud prevention is preferred.

Mindset:

● You enjoy solving complex infrastructure challenges and building systems that scale.

● You take ownership and proactively identify opportunities to improve performance and reliability.

● You thrive in collaborative environments and communicate technical concepts with clarity.

● You're curious, adaptable and always exploring better ways to build resilient voice platforms.