Senior Machine Learning Engineer (Speech Synthesis)
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Job Location:
Monthly Salary:
Posted on:
30+ days ago
Vacancies:
1 Vacancy
Job Summary
About Telnyx
Telnyx is an industry leader thats not just imagining the future of global connectivitywere building it. From architecting and amplifying the reach of a private global multi-cloud IP network to bringing hyperlocal edge technology right to your fingertips through intuitive APIs were shaping a new era of seamless interconnection between people devices and applications.
Were driven by a desire to transform and modernize whats antiquated automate the manual and solve real-world problems through innovative connectivity solutions. As a testament to our success were proud to stand as a financially stable and profitable company. Our robust profitability allows us not only to invest in pioneering technologies but also to foster an environment of continuous learning and growth for our team.
Our collective vision is a world where borderless connectivity fuels limitless innovation. By joining us you can be part of laying the foundations for this interconnected future. Were currently seeking passionate individuals who are excited about the opportunity to contribute to an industry-shaping company while growing their own skills and careers.
The Impact Youll Drive
As a Senior ML Engineer (Speech Synthesis) youll be a founding member of the team building Telnyxs next-generation speech synthesis systems. This is a greenfield opportunity youll define the stack architecture and best practices for training and deploying state-of-the-art multilingual text-to-speech (TTS) models that power our voice AI agents.
Youll build everything from distributed training pipelines to inference services that generate ultra-low-latency lifelike voices across dozens of languages. Your work will bridge research and production shaping how millions of people experience real-time conversational AI.
What Youll Work On
- Own the stack from day one: Design and implement the ML training and inference pipelines for multilingual speech synthesis.
- Low-latency TTS: Engineer systems optimized for real-time streaming speech generation with sub-100ms response targets.
- Train cutting-edge models: Build and fine-tune multilingual TTS systems using modern architectures including LLM-based diffusion and flow-matching approaches.
- Massive-scale data processing: Develop pipelines for ingesting aligning and normalizing text audio and phonetic data across dozens of languages.
- Experimentation at scale: Run distributed training across multi-node GPU clusters tracking results and iterating quickly.
- Cross-functional collaboration: Work with infrastructure and voice platform teams to deploy models that scale globally.
- Research meets production: Evaluate emerging techniques (LLM-guided synthesis zero/few-shot voice cloning full-duplex modeling) and bring them to life in production-grade systems.
What Youll Work With
- Infrastructure: Docker Kubernetes Ray Kubeflow MLflow Weights & Biases
- Data Systems: Kafka Redis PostgreSQL Parquet
- Youll define it: Youll help select and implement the stack that supports distributed training data processing and inference for global deployment.
What Were Looking For
- 6 years of experience in machine learning or speech systems engineering
- Hands-on expertise with neural TTS speech synthesis or adjacent areas (ASR voice cloning multilingual modeling)
- Youve obsessed over one or two hard problems whether its building multilingual TTS from noisy data teaching LLMs to speak designing self-supervised audio encoders or making diffusion models run in real time.
- Experience with LLM-based approaches to speech synthesis or prosody control
- Strong proficiency in Python and PyTorch
- Ability to deploy models efficiently (ONNX TensorRT)
- Experience leading small teams and defining technical direction or team executables
- Production mindset: You build systems that run fast stay stable and are easy to maintain
Why Telnyx
Youll be joining a company where voice infrastructure and AI converge. Telnyx is building the foundation for real-time intelligent global communications and your work on multilingual TTS will be at the core of that vision.
#LI-KG1
#LI-REMOTE
Required Experience:
Senior IC
Key Skills
- Experience Working With Students
- Time Management
- Acute Care
- HTTPS
- Speech Therapy
- Assistive Technologies
- Autism Experience
- Pediatrics Experience
- Home Care
- Interpretation
- Patient Service Experience
- Phone Etiquette
About Company
At Telnyx, we build voice, messaging, data and wireless services that facilitate high-fidelity, secure and modern modes of communication. As engineers, we develop globally distributed services that empower developers to create applications capable of real-time communication. We have n ... View more
