Senior Machine Learning Engineer (Voice & Video AI)

TelnyxAmsterdamOn-siteFull-time2 weeks ago

Telnyx is seeking a Senior Machine Learning Engineer to build next-generation conversational voice and video AI, spanning speech-to-speech models, full-duplex audiovisual interaction, and multilingual capabilities. The role requires 6+ years of ML engineering experience with strong Python and PyTorch skills, plus end-to-end product ownership from model adaptation to production deployment on global GPU infrastructure.

What you'll do

Evaluate, adapt, and deploy speech-to-speech and full-duplex video models, including expressive avatars and synchronized audiovisual generation
Improve natural interaction through better turn-taking, interruption handling, and responses to verbal and visual cues
Track emerging research and open-source releases, benchmark promising approaches, and fine-tune models for languages, accents, and specialized domains
Build data and evaluation pipelines that demonstrate improvements in realistic conversations
Train and deploy models on state-of-the-art GPU hardware across Telnyx's global infrastructure
Optimize streaming inference, GPU utilization, latency, and serving cost while maintaining conversational quality, audiovisual synchronization, and reliability
Own features from model experiments through backend services, APIs, data models, and customer portal interfaces
Use advanced coding agents and harnesses to implement, test, debug, and review changes across the stack

What you need

Must-have

PythonPyTorchSpeech-to-speech modelsMultimodal modelsVideo generationSpeech generationDistributed trainingFine-tuning

Soft skills

Systems judgmentEnd-to-end engineering ownershipAgent-driven development mindsetEngineering fundamentals

Machine LearningVoice AIVideo AISpeech-to-speechMultimodalPyTorchGPUReal-time communicationsSeniorSoftware Development

/What you'll do

/What you need

Must-have

Soft skills

What you'll do

What you need