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← Baselayer

Senior AI Engineer, Agentic Data Enrichment

Baselayer
Location
San Francisco, California
Posted
12 days ago
Department
Engineering
Salary
$230,000 – $340,000
What they actually want (must-haves)
  • Shipped LLM-driven agents to production
  • Strong async Python including structured-data libraries, modern web frameworks, and relational databases
  • Experience across multiple frontier LLM providers and at least one agent framework
  • Built or maintained eval methodology: curated golden datasets, scoring functions, labelling guidelines, regression diagnostics
  • Browser automation experience: headless browsers, anti-bot evasion, authenticated flows
  • Holds informed opinions on structured-output reliability
Nice to have
  • Web scraping at scale: anti-bot evasion, residential proxies, request fingerprinting, authenticated flows, CDN defeats
  • Eval-framework experience (e.g., LangSmith, Braintrust, Evals, or custom)
  • Entity resolution / record linkage / fuzzy matching at scale
  • Browser-automation experience at the devtools-protocol level
  • Built a tool registry or toolset abstraction over multiple LLM providers
What the job really is

As a Senior AI Engineer at Baselayer, you will be responsible for developing and maintaining systems that enrich business data by classifying industries, verifying web presence, and linking individuals to businesses using LLM-driven agents. Your role involves building a robust infrastructure for data extraction and scoring, while ensuring the reliability and efficiency of these processes in a production environment.

Benefits
  • Flexible PTO
  • Competitive compensation with equity
  • 100% coverage of health, dental, and vision premiums
  • 401(k) with company match
  • HSA contributions included
  • $250 monthly gym stipend
Things to weigh
  • Hybrid work model with 4 days in the office
  • No specific mention of team size or structure
  • High compensation range may indicate high expectations or pressure
Job score4.8/5
Benefits4/5
Freshness5/5
Career value5/5
Role clarity5/5
Pay transparency5/5

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