Senior Applied Scientist
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Job Description
Senior Applied Scientist developing proprietary models for corporate ownership and trade networks at Sayari. Collaborating with AI/ML engineers to shape data strategies and deployment processes.
Responsibilities:
- Model Ownership: Design and execute fine-tuning strategies (LoRA, full fine-tuning) and own the experimentation cycle from hypothesis through production deployment.
- Data Strategy: Build and refine data collection and labeling strategies for complex, messy domains, including designing auto-labeling pipelines.
- Architecture: Evaluate and select base models (proprietary and open-source) for domain-specific tasks, focusing on small language models (SLMs).
- Deployment: Deploy fine-tuned models to production using cloud ML platforms (Vertex AI, SageMaker, or equivalent).
- Evaluation: Develop rigorous evaluation frameworks that measure real-world performance on agentic workflows, not just benchmarks.
Requirements:
- 5+ years of experience in applied ML with a focus on model training and fine-tuning in a commercial setting.
- 2+ years of hands-on experience with LoRA and full fine-tuning—you have shipped these, not just read about them.
- Track record of deploying fine-tuned models to production on cloud ML platforms.
- High comfort level working with messy, unstructured data and designing labeling strategies from scratch.
- Proficiency with HuggingFace, PyTorch, and at least one cloud ML platform.
- Strong opinions about base model selection, held loosely—you can articulate tradeoffs between architectures.
Benefits:
- 100% fully paid medical, vision, and dental for employees and their dependents
- Generous time off; we observe all US federal holidays, close our office for a winter break (12/24-12/31), in addition to granting 18 PTO days and 10 sick days
- Outstanding compensation package; competitive commissions for revenue roles and quarterly bonuses for non-revenue positions
- A strong commitment to diversity, equity, and inclusion
- Eligibility to participate in additional benefits such as 401k match up to 5%, 100% paid life insurance (up to $100,000 coverage), and parental leave
- A collaborative and positive culture - your team will be as smart and driven as you
- Limitless growth and learning opportunities
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