Software Engineer - Voice Model
xAI · Palo Alto, CA
CHECKED 14H AGO
Frontier labonsite$150k–$450k
At a glance
Highlights
- Build the world's best voice AI for natural, low-latency spoken interactions.
- Own full training pipeline from data curation to pre-training and post-training.
- Integrate voice models into real-time apps for global-scale deployment.
What they offer
- Equity
- Comprehensive medical, vision, and dental coverage
- 401(k) retirement plan
- Short and long-term disability insurance
- Life insurance
- Discounts and perks
Ideal candidate
Execution-oriented builder who thrives in small, high-caliber teams and loves crafting delightful conversational experiences. Curious, proactive, and driven by excellence in voice AI.
Requirements
- Python expert with deep proficiency in writing clean, efficient code for AI/ML systems.
- Hands-on experience processing large-scale datasets using tools like Spark and Ray for cleaning, augmentation, and feature extraction.
- Proficiency in pre-training and post-training speech-language models using JAX/PyTorch, including supervised fine-tuning, reinforcement learning, and optimizations for accuracy, factuality, natural spoken style, detail, and multilingual fluency.
- Ability to set up and run rigorous evaluation pipelines: objective metrics, human preference studies, content factuality checks, and iterative A/B testing to drive model improvements.
- Experience building or working with large-scale distributed training and inference systems on Kubernetes.
- Proactive, self-driven attitude — ready to grind in a fast-paced, high-caliber team to deliver outstanding voice AI experiences.
Lab profile
About xAI
Builds AI systems to understand the universe and advance human knowledge.
Known for
- Engineering excellence focus
- Large-scale data center operations