AfterQuery
Software Engineer - Platform/Applied AI (Fullstack)
San Francisco
Sponsorship not specified$180k-$220kDetected 99 days ago
JavaScriptPythonNext.jsFull-Stack DevelopmentRedisElasticsearchAWSGCPKafkaRabbitMQData EngineeringLLMsProduct ManagementProduct StrategyValuationResearch
About the role
- ABOUT AFTERQUERY AfterQuery https://www.afterquery.com/ is an applied research lab curating data solutions for foundation model development.
- This is a rare opportunity to join a company at a defining moment in AI.
- Since raising our $30M Series A at a $300M valuation, AfterQuery has grown well over a $100M revenue run rate.
Responsibilities
- Build and scale complex data capturing workflows across web (Next.js) and desktop (Python)
- Architect and optimize data pipelines that experience high throughput, with heavy loads
- Collaborate with the founding team to define product strategy and ship features fast.
- In doing so, we can make expertise that once took a lifetime to build available to anyone who needs it.
- Founding role-you'll define and own our data infrastructure from day one.
- As we scale, you'll have the opportunity to lead and grow an engineering team.
Requirements
- Proficiency in JavaScript (Next.js) and Python, with demonstrated experience building full-stack web applications
- Experience with serverless architecture and cloud functions for implementing heavy data processing (GCP/AWS)
Nice to have
- Any background in AI research, LLM evaluation, or human‑in‑the‑loop systems
- Experience getting your ideas into production (founder experience preferred)
Compensation
- Equity & Growth – Competitive salary + equity.
Benefits
- Equity & Growth - Competitive salary + equity.
- $180-220K base + dataset commission bonus (4% Gross Profits; $100k-400k w/ no cap) + meaningful equity
- Comprehensive benefits (UberEats and ride share stipend, comped Equinox, 401K with match, health, dental, and vision insurance)
Company info
- We serve every frontier AI lab with the mission of delivering the best data to power the best models.
- Our customers are the ones building the foundation models themselves and our work sits directly in the loop of how those systems improve.
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This listing is sourced directly from AfterQuery's careers page and normalized into a canonical job model.