Machine Learning Engineer – Voice AI, Generative Music
Employment Information
Report this job
Job expired or something wrong with this job?
Job Description
Part-time ML Engineer building voice cloning, Spanish TTS, and lyrics-generation systems. Deploying production AI models for an AI-native Mexican music label.
Responsibilities:
- Fine-tune and improve a singing-voice conversion and cloning model to achieve at least 90% quality in blind listening tests
- Reproduce expressive vocal characteristics including vibrato, falsetto, dynamics, and spoken and sung delivery
- Evaluate training dataset expansion, alternative base models, and enterprise APIs with no-training guarantees
- Own and improve a Spanish-speaking Chatterbox Multilingual LoRA fine-tune
- Ensure accurate Mexican accent reproduction and pronunciation of J, Ñ, and X
- Containerize the text-to-speech model and deploy it as a serverless inference endpoint using RunPod or a similar platform
- Integrate the inference endpoint with the existing web platform through an API
- Train a second text-to-speech version using clean studio recordings
- Develop a proprietary Spanish-language lyrics-generation model using an open-weight LLM, LoRA fine-tuning, DPO, and RAG
- Establish evaluation criteria and organize quality assessment with native Spanish speakers
- Integrate the completed lyrics model into the existing frontend
Requirements:
- 3+ years of experience training and deploying deep learning models in production, preferably within audio or NLP
- Hands-on experience in at least two of: voice cloning or Singing Voice Conversion (SVC); Text-to-Speech model fine-tuning; LLM fine-tuning using LoRA, DPO, and RAG
- Strong proficiency in PyTorch
- Practical experience with GPU cloud infrastructure such as RunPod or AWS
- Experience with Docker and serverless inference
- Evidence-based model evaluation, including benchmarks, ablation studies, and blind testing
- Native or strong professional proficiency in Spanish, required for lyrics evaluation and voice quality assurance
- Nice to have: music background or experience with stems, MIDI, and DAWs
- Nice to have: singing-voice synthesis experience with ACE Studio, ACE-Step, RVC, so-vits-svc, or similar technologies
- Nice to have: experience working with licensed celebrity or artist voices and consent-based voice AI
Benefits:
- Security through client vetting to minimize risks and ensure reliable, timely payments
- Career support and help finding new opportunities if a project is not the right fit
- Legal assistance with independent contractor or sole proprietorship status, taxes, and related processes
- English courses
- Professional growth opportunities
- Team-building events
- Flexible working hours
- 29 days of PTO (18 working days per year plus all national holidays)
- 10 paid recovery days
- Full financial and legal support for independent contractors
- Free English classes with native speakers or Ukrainian teachers
- Dedicated HR support
Similar Jobs
Senior Machine Learning Engineer
Senior Machine Learning Engineer developing deep-learning perception and mapping systems for Stack AV’s L4 autonomous trucking technology. Building real-time, safety-critical software and generative AI algorithms.
Machine Learning Engineer – Voice AI, Generative Music
Applied ML Engineer building voice-cloning, text-to-speech, and Spanish lyrics-generation systems. Deploying production AI models for an AI-native music label.
Machine Learning Engineer – Voice AI, Generative Music
Part-time ML Engineer building voice-cloning, text-to-speech, and Spanish lyrics-generation systems. Deploying production AI models for an AI-native music label’s music pipeline.
Senior Machine Learning Engineer
Senior ML Engineer deploying scalable ML models and pipelines for Fleet Space’s satellite-enabled mineral exploration technology. Owning MLOps, GPU infrastructure, model quality and experiment platforms.
AI/ML Engineer
AI/ML Engineer developing and governing AI automations, analytics, and LLM solutions for Rackner’s U.S. government software consultancy. Supporting responsible AI adoption across federal mission environments.
ML Engineer
Machine Learning Engineer developing, optimising, and reviewing AI training and inference systems for 24-MAG’s global remote consulting platform. Part-time contractor role focused on Python-based ML engineering.
Senior Machine Learning Engineer
Senior Machine Learning Engineer building computer vision and generative AI systems for Aftershoot’s photographer-focused AI tools. Owning projects from ideation through deployment and monitoring.
Senior AI/ML Engineer
Senior AI/ML Engineer building Generative AI, RAG, and agentic solutions for pharmaceutical Statistical Programming. Deploying secure, validated, production-ready AI applications with Python and AWS.
Senior Machine Learning Engineer
Senior Applied AI Engineer building production AI/ML systems for phData, a data and AI consultancy. Delivering scalable enterprise solutions across LATAM clients.
Senior ML Engineer
Senior ML Engineer building CloudBolt’s recommendation engine for Kubernetes resource optimization. Reducing SaaS customers’ cloud spending through safe forecasting and production ML systems.
ML Ops Engineer
ML Ops Engineer productionizing reliable, observable machine-learning systems for Nift’s performance-marketing platform. Building cloud infrastructure, deployment pipelines, monitoring, and model governance.
ML Engineer, Agentic Systems
Staff ML engineer building models, evaluations, and agentic systems for Sourcegraph’s code-understanding products. Improving enterprise code search quality, latency, cost, and reliability.
Senior Machine Learning Engineer
Senior Machine Learning Engineer productionizing computer vision models for Samsara’s IoT-powered Connected Operations Cloud. Building low-latency APIs, data pipelines, and monitoring for fleet-scale safety features.
Junior AI/ML Engineer, GenAI, AWS
Junior AI/ML Engineer building RAG, GenAI, and AWS systems for Provectus, an AWS Premier and Anthropic Strategic Partner. Contributing to production AI, backend services, evaluations, and deployments.
Mid-Level MLOps Engineer
MLOps Engineer building and operating secure, reliable ML/AI production services for Redcare Pharmacy, Europe’s leading e-pharmacy. Improving Python systems, Kubernetes infrastructure, CI/CD, and model lifecycle practices.
Machine Learning Engineer – Roleplay Sessions
Machine Learning Engineer building real-time AI coaching for Synthesia’s interactive enterprise roleplay training platform. Developing performance scoring, feedback, and avatar-response models.
AI, Machine Learning Roles
AI/ML professionals developing Generative AI and machine learning solutions. Building scalable cloud applications with Python, LLMs, data pipelines, APIs, and microservices.
Senior AI/ML Engineer – India
Forward Deployed AI/ML Engineer developing and deploying models, LLMs, and Agentic AI systems for NewRocket’s enterprise ServiceNow clients. Building scalable cloud, data, and automation solutions.
Staff Machine Learning Engineer
Staff ML Engineer setting technical direction for AI models at Payabli, a payments infrastructure platform. Building, deploying, and monitoring models across risk, authorization, disputes, and payouts.
Senior Machine Learning Engineer, Forecasting
Senior ML Engineer building MLOps and forecasting infrastructure for Apella’s surgical-care technology. Automating retraining, deployment, monitoring, and scalable production ML systems.