AfterQuery · 1 month ago
Full Stack Engineer (LatAM)
San Francisco, CA, US
Full-time
Hybrid
Mid Level
3+ years expAfterQuery is helping push the frontier of LLMs and AI Agents through novel datasets and experimentation. As part of AfterQuery’s engineering team, you’ll have end-to-end ownership over projects that push the frontier of AI evaluation, working on a mix of research and platform engineering.
Artificial Intelligence (AI)B2BBig DataData Collection and Labeling
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
3+ 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
Preferred
Experience with RL environments, agentic systems, or human-in-the-loop workflows
Company
AfterQuery
Research lab investigating the boundaries of AI capabilities. Serving every frontier AI lab.
51-200 employees
Funding
Current Stage
Growth StageTotal Funding
$0.5M2025-03-12Pre Seed· $0.5M
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