Senior Chemical Data Scientist - Data Pipelines & Quality

Valdera; San Francisco (CA); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Competitive benefits

Remote-friendly environment

Job summary

Valdera in San Francisco, CA is seeking a Chemical Data Scientist to build and maintain pipelines for supplier and chemical product data, ensuring accurate, standardized catalogs across Valdera’s procurement platform.

You will own scrapers, ETL workflows, data cleaning, and matching models, partnering with Supplier Management and Engineering to improve data quality, coverage, and regulatory readiness across our growing ecosystem.

Qualifications

• 5+ years in data science, data engineering, or applied data roles with messy datasets.
• Working knowledge of chemistry data: CAS numbers, NAICS, certifications.
• Strong Python skills and experience building scrapers and pipelines.
• Experience cleaning and normalizing at scale; spotting data inconsistencies.
• Familiar with matching or classification models (ML/LLM-based).
• Hands-on use of AI tools to accelerate data workflows.
• Startup mindset; capable of independent work in a fast-moving, remote setting.

Responsibilities

• Design pipelines to collect supplier and chemical product data from various sources.
• Develop and maintain web scrapers and ETL workflows at scale.
• Clean, normalize, and reconcile data into structured formats for analytics.
• Apply chemistry knowledge to validate and enrich data across suppliers.
• Improve matching and classification models mapping suppliers to requirements.
• Collaborate with Supplier Management and Engineering to close data gaps.
• Own pipeline health and data quality KPIs.

Skills

5+ years data science

Chemistry data knowledge

Python

Data cleaning at scale

Matching/classification models

AI tools / LLMs

Startup mindset

Tools

Web scraping

ETL pipelines

Job description

Valdera in San Francisco, CA is seeking a Chemical Data Scientist to build and maintain pipelines for supplier and chemical product data, ensuring accurate, standardized catalogs across Valdera’s procurement platform.

You will own scrapers, ETL workflows, data cleaning, and matching models, partnering with Supplier Management and Engineering to improve data quality, coverage, and regulatory readiness across our growing ecosystem.