Director of Engineering, Voice Platform

Note: Fidelity will not provide immigration sponsorship for this position.

Fidelity is building   its nex t   generation contact center platform to deliver highly reliable, intelligent, and scalable customer eng agement.   We are   seeking a   Director   of   Engineering   to help   design , build and operate its voice   platform foundation.   This is a senior, hands-on engineering role within the Voice Platform team.   You will provide deep technical leadership while actively designing , coding, integrating, testing and troubleshooting production voice services built primarily on   Kamailio   and   FreeSWITCH .   You   will shape the voice platform architecture, establish engineering standards, solve the most complex real-time communications challenges, and mentor engineers across the team.   Success requires both   both   deep tel ecommunications expertise and the ability to build software and platform capabilities that can be consumed through APIs,   events, configuration and reusable services.

Contribute to voice/telephony services architecture and build   the programmable voice platform supporting inbound, outbound, transferred , conferenced, and multi-party contact center interactions   Design and implement carrier-gra d e SIP signaling and media-processing capabilities using   Kamailio   and   FreeSWITCH .   Remain deeply hands-on , contributing to production code, configurations, automation, prototypes, technical designs, test frameworks, and operational tooling.   Platform design for SIP routing,   session control, media services, conferencing, recording, playback, DTMP, codec negotiation, transcoding, and call-state management.   Develop reusable voice services and APIs that abstracts underlying telephony a nd enable teams to safely consume voice capabilities.   Build and optimize   Kamailio   routing logic,   transcation   handling, registration,   toplogy   hiding, load balancing, failover, authentication, and security controls.   Build and extend   FreeSWITCH   applications, dial plans, modules, event   itegrations , media services, and call-control capabilities .   Design for   high availability, geographic redundancy, horizontal scalability, fault isolation , graceful degradation, and disaster recovery.   Establish observability standards for the voice platform.   Provide   team technical leadership through design reviews, code reviews, mentoring, and direct participation in complex engineering work.   Partner closely with architecture, product management, contact center engineering   teams, security, networking, and quality engineering.   Participate in production support and incident response for   critical voice platform services.

Bachelor’s   of   master’s degree in computer science , electrical engineering, or related technical discipline or equivalent practical experience.   10 + years of software development experience   with significant experience in voice, telephony,   realt -time communications, or programmable communications services.   5 + years of   hands-on production experience with   FreeSWITCH   and   Kamailio .   Deep understanding of   FreeSWITCH   architecture   and hands-on experience configuring, extending, embedding or integrating   FreeSWITCH   in production systems   Deep understanding of   Kamailio   architecture and SIP-routing configuration .   Experience integrating   Kamailio   with   FreeSWITCH   clusters , carriers, and SBCs.   Expert-level understanding of   voice protocols .   Familiarity   with session border controllers and   telecomunicaions   security patterns.   Strong software engineering skills in C, C++, Java,   or Go.   Experience developing distributed, event-driven, real-time, and low-latency services.   Experience with relational and non-relational datab a ses, distributed