Backend Engineer - Dialer/Telephony/IVR

Position : Backend Engineer (Node.js, Dialer/Telephony/IVR)Total Experience : 3+ years onlyLocation : Gurugram (Only for Candidates based in Delhi/NCR)Working Days : 5 Days Working from officeNotice Period Requirement : Immediate Joiners or Serving Notice Period onlyClient's Company Size : Startup / Small EnterpriseInterview Process : Face to Face Interviews for Technical RoundsRole & Responsibilities : As a Backend Developer specializing in dialer and telephony systems, you will be responsible for designing, developing, and maintaining the core backend components of our omnichannel dialer platform.Key Responsibilities : - Build RESTful APIs using Node.js.- Optimize PostgreSQL + Redis data flow.- Develop and maintain backend services using Node.js for our omnichannel dialer platform.- Integrate telephony APIs to enable outbound and inbound calling, SMS, and other communication channels.- Design and implement IVR flows, call routing, and automation features.- Optimize call handling, queuing, and agent management for high concurrency and reliability.- Collaborate with frontend, product, and engineering teams to define technical requirements and deliver solutions.- Ensure platform scalability, security, and performance standards are met.- Stay updated with the latest telephony and communication technologies and incorporate best practices.Candidate Requirements : - Must have 3+ years of backend development experience, with strong hands-on expertise in Node.js for building scalable backend applications, microservices, and REST APIs.- Must have minimum 1+ years of hands-on experience working on Dialer, Telephony, IVR, Contact Center, Auto Dialer, Predictive Dialer, Voice Bot, or Communication Platform products.- Must have hands-on experience developing and maintaining backend services for calling platforms, including inbound/outbound calling workflows, call management, call tracking, agent management, and communication systems.- Must have experience integrating with telephony APIs, SIP-based systems, Voice APIs, Call APIs, SMS APIs, or communication platforms.- Must have strong understanding of IVR design, call routing logic, call automation workflows, call queues, agent assignment, call escalation, and telephony workflows.- Must have strong database experience with PostgreSQL and preferably Redis.- Must be from CPaaS, Contact Center, Telephony, Communication Platforms, Voice Technology, Conversational AI, Voice Bot, Customer Engagement Platforms, Unified Communications, or SaaS product companies. (ref:hirist.tech)