Audio Engineer

il y a 2 jours


Paris, France White Circle Temps plein

TLDR: Audio / Multimodal ML Engineer to train and ship speech, audio and multimodal models for an AI safety platform that operates at 100M+ API calls/month. About us White Circle is an AI Safety company building the safety, reliability, and optimization layer for AI systems. At the core of our platform are policies – simple natural-language rules that define what an AI model should and shouldn’t do. We automatically test, enforce, and continuously improve these policies at scale. We’ve raised $11M from top funds, founders, and senior leaders at OpenAI, Anthropic, HuggingFace, Mistral, DeepMind, Datadog, Sentry, and others We process over one hundred million API calls every month We fine-tune and train our own LLMs so they run faster and cheaper than any open or proprietary model We’re a small, highly focused team. If you want to work deeply on hard problems, see your work ship to production quickly, and influence how AI safety is actually built – you’re the one we need. You will: Train and fine-tune large-scale audio and multimodal models from scratch and from pretrained checkpoints Design and run experiments: architecture changes, data mixes, training recipes Build and maintain audio data pipelines — from raw recordings to training-ready datasets Optimize models for production: quantization, distillation, streaming inference Deploy models end-to-end: from research checkpoint to low-latency serving Collaborate with research to turn experimental ideas into shippable features Define evaluation metrics and benchmarks that actually matter for the product You’ll fit right in if you: 3+ years of experience training large-scale deep learning models in audio, speech, or acoustic domains Strong hands-on experience with PyTorch, distributed training (DeepSpeed, FSDP, or similar) Familiarity with audio/speech architectures (Audio Qwen, Whisper, HuBERT, Conformer, or similar) Experience with vision-language and multimodal architectures (Audio Flamingo, Omni Qwen, or similar) Track record of shipping models to production: you've hit latency targets, not just accuracy benchmarks Comfortable working with large-scale audio data pipelines: preprocessing, augmentation, dataset curation Understanding of audio signal processing fundamentals: spectrograms, mel features, noise reduction Experience with SFT, DPO, GRPO or other alignment techniques — ideally in multimodal setting Strong engineering fundamentals: clean code, version control, testing, documentation Why White Circle Salary of $100,000 to $250,000 + equity 20 days of paid vacation Work from Paris (hybrid) + relocation package Best medical insurance in France All the hardware, tools, and services you need Covered subscriptions for AI agents and IDEs Team off-sites twice a year: we’ve recently been to the Alps and to Saint-Tropez How we hire Intro call with one of our colleagues Сomplete the take-home assignment Show your best during the technical interview Final call with our CEO and CTO Please submit your application in English - it’s our company language so you’ll be speaking lots of it if you join #J-18808-Ljbffr



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