Bespoke Labs
MTS, Post-Training (Enterprise)
$300K–$350K
Mountain View +1 · On-site · Full-time · Posted Sep 29, 2026
- Location
- Mountain View
Remote - Visa sponsorship
- Visa sponsorship and relocation support available.
About the job
Ships custom post-trained models for enterprise customers, from data curation and evaluation through production deployment and performance monitoring.
What you'll do
- Fine-tune and align models for enterprise domains and production requirements.
- Build evaluation suites, curate datasets, and monitor for regressions.
- Work with customers and stakeholders to translate requirements into metrics and explain model behavior.
What they ask for
- Have post-trained at least one LLM deployed to production users and measured its success.
- Have end-to-end experience building benchmarks and evaluation datasets and agreeing on metrics with stakeholders.
- Understand regression risks and how to preserve existing model capabilities during training.
- Have strong software and ML fundamentals, including production data pipelines and post-training frameworks.
Nice to have
- Experience with conversational or task-oriented assistants, LLM judges or reward models, or production data flywheels.
- Hands-on experience with open-weight models or a background as an FDE, founder, or early-stage startup employee.
Pay
$300,000 – $350,000 USD / year (base salary); 25% performance-based bonus + equity (additional compensation; amount not stated)
Tools
Llama, Qwen, Mistral, DeepSeek
AI focus
Enterprise post-training, fine-tuning, alignment, evaluation, and deployment of models; includes preference tuning, data curation, and regression mitigation.
Model-written summary · the original posting is authoritative