AfterQuery · 4 months ago
Founding Full-Stack Engineer
San Francisco, CA, US
Full-time
Onsite
Entry Level
$140K/yr - $220K/yr
1+ years expAfterQuery is a company focused on advancing LLMs and AI Agents through innovative datasets and experimentation. They are seeking a Founding Full-Stack Engineer to take ownership of projects that enhance AI evaluation, working on both research and platform engineering tasks.
Artificial Intelligence (AI)B2BBig DataData Collection and Labeling
No H1B
U.S. Citizen Only
Responsibilities
Design and build scalable systems: RL environments, APIs, and human-in-the-loop platforms
Collaborate across research, product, and design to ship features quickly
Write clean, maintainable code and contribute to documentation
Participate in code reviews and design discussions
Solve real-world scalability and reliability challenges
Contribute to the core infrastructure powering data and evaluation for leading AI labs
Qualification
Required
1+ years of experience
Strong coding fundamentals in Node.js / TypeScript, Python and/or Go
Deep understanding of distributed systems, scalability challenges, and system design
Familiarity with cloud platforms (GCP/AWS), Kubernetes, APIs, NoSQL databases
Ability to reason about trade-offs and balance speed vs reliability
Strong communication skills and a bias toward ownership, curiosity, and delivering simple solutions to complex problems
US citizen/visa only
Preferred
Experience with RL environments, agentic systems, or human-in-the-loop workflows
Benefits
Generous equity grant vested over 4 years
Daily lunch & dinner covered
Free gym membership
Health insurance
Company
AfterQuery
Research lab investigating the boundaries of AI capabilities. Serving every frontier AI lab.
51-200 employees
Funding
Current Stage
Growth StageTotal Funding
$0.5MKey Investors
BoxGroup,Y Combinator
2025-03-12Pre Seed· $0.5M
Company data provided by crunchbase