Predictive Dialer & AMD Engineer - USA

AI Case Leads connects people hurt in accidents with personal injury law firms and is replacing its hosted dialer with an in-house system built on FreeSWITCH and Python. The Predictive Dialer & AMD Engineer will own answering-machine detection and call-screening handling to preserve live conversations, and collaborate on dialing, call routing, and detection testing.

Responsibilities:

• Detect live people, voicemail, call screeners, and silence from the first seconds of call audio
• When a screener answers, play a truthful message with our name and reason for calling, then connect a live rep when the person picks up. Route voicemail to the right message drop
• Work with our dialing engineer on pacing, abandoned-call controls, SIP/media handling, and CRM reporting
• Build a labeled set of real call audio and test every detection change against it. Track accuracy by result, phone type, and campaign, with particular attention to live people incorrectly classified as machines

Requirements:

• Hands-on work with iPhone call screening, including test calls to real iPhones
• Personally built or deeply extended a production predictive dialer, including pacing logic. Vendor API integration, administration, or agent-interface work alone is not enough
• Improved and measured AMD in production, beyond enabling a vendor setting
• At least 2 years of production experience with FreeSWITCH, Asterisk, Kamailio, or OpenSIPS
• Ability to read SIP traces and troubleshoot RTP, audio, and carrier issues
• Experience using speech-to-text, audio features, or machine learning to classify real call audio
• Ability to ship production backend services. Our stack is Python/FastAPI, PostgreSQL, Redis, RabbitMQ, and React/TypeScript
• Experience at a dialer or contact-center software company
• FreeSWITCH module development in C or Lua, including mod_avmd
• Low-latency speech-to-text and English/Spanish voicemail drops
• Familiarity with TCPA, DNC scrubbing, STIR/SHAKEN, and caller ID reputation