Senior Programmable Voice Engineer (CX Platform) at Miratech — NeverHard

Job Description We are looking for a Senior Programmable Voice Engineer to develop programmable voice capabilities, call control services, media processing, and API-driven communications infrastructure similar to Twilio and other CPaaS platforms. The role includes designing and building the voice platform powering next-generation customer experience solutions using technologies such as FreeSWITCH, Kamailio, SIP, WebRTC, Java, and Spring Boot. It suits a senior engineer who can move confidently between architecture, code, delivery risk, non-functional requirements, and client-facing technical discussions. Responsibilities: Design and develop programmable voice services, APIs, and call-control capabilities for enterprise-scale communications platforms. Build and extend voice infrastructure using FreeSWITCH, Kamailio, SIP, RTP, WebRTC, and related technologies. Design and develop backend services and communication APIs using Java and Spring Boot to expose voice capabilities to internal and external applications. Implement call routing, session management, media handling, carrier integrations, and voice traffic processing solutions. Design highly available, scalable systems capable of handling large volumes of real-time communications traffic.Troubleshoot complex signaling, media, telephony, and call-quality issues across distributed environments. Integrate voice services with contact center, routing, digital engagement, CRM, identity, and reporting platforms. Define non-functional requirements for availability, performance, concurrency, security, privacy, observability, disaster recovery, and supportability. Review designs and code, identify technical risks, challenge assumptions, and drive pragmatic decisions that balance quality, time, and cost. Establish engineering standards, reusable patterns, quality gates, documentation expectations, and technology adoption guidance. Collaborate with client stakeholders, Product, Architecture, QA, DevOps, Security, Operations, and vendors to govern delivery and resolve critical technical issues.