Building the first social AI platform
Machine Learning Engineer – Voice Conversion
Location
United States
Posted
10 hours ago
Salary
$200K - $220K / year
Seniority
Senior
Job Description
Machine Learning Engineer – Voice Conversion
Cantina
• Architect, implement, pre-train, fine-tune, and post-train/alignment large-scale speech models • Design, run, and analyze scientific experiments to advance understanding of models • Develop and improve development tooling to enhance team productivity • Contribute across the stack, from low-level optimizations to high-level model design • Define data requirements and collaborate on acquisition, curation, augmentation, labeling quality, and synthetic data strategies • Design automated objective and subjective evaluations, including listening tests, SV/WER/ASR-based metrics, robustness and bias checks, and red-team studies • Harden the training-to-evaluation-to-inference pipeline; profile latency, memory, and cost; meet production SLAs with monitoring and rollback • Contribute to safety and consent guardrails and misuse/abuse mitigation for responsible speech technology • Partner with research, data, infrastructure, and product teams to ship measurable improvements to speech systems
Job Requirements
- Exceptional research/development experience with large-scale audio models (>8B parameters, >500k hours of data)
- Deep hands-on experience with diffusion and/or flow-matching transformers, including samplers, schedules, conditioning mechanisms, and distillation
- Deep hands-on experience training audio VAEs, neural audio codecs, and vocoders, including latent/tokenizer design, reconstruction and perceptual objectives, and adversarial training
- Strong experience with multi-node, multi-GPU distributed training using FSDP, DeepSpeed, or equivalent
- Strong software engineering skills with a proven track record of building complex systems
- Strong proficiency with PyTorch and performance work, including profiling and CUDA/Triton/C++ as needed
- Experience writing reliable production-quality code
- Experience shipping large-scale speech/audio or multimodal generative models to production
- Background working with large-scale ML data and triangulating quality using subjective and objective signals
- Experience with voice cloning, speech control/steerability, or expressive speech generation
- Notable publications and/or open-source contributions in speech, audio, or machine learning
Benefits
- Competitive salary and generous company equity
- Medical, dental, and vision insurance – 99.99% of premiums covered by Cantina
- 42 days of paid time off, including 15 PTO days, 10 sick days, 15 company holidays, and 2 floating holidays
- Generous parental leave & fertility support
- 401(k) retirement savings plan
- Lifestyle spending account – $500/month to use however you’d like
- Complimentary lunch and snacks for in-office employees
- One Medical membership, and more!
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