Software Engineering Intern (Summer 2027)

What you'd do

• Agent Engineering builds the core infrastructure that our agents run on: orchestrating agent loops, building the sandboxed environments where agents run experiments against real data, designing the APIs and tooling researchers touch, and scaling the infrastructure that keeps it fast and reliable.
• Product builds an incredibly strong UI for agents to run in and for humans to interact with, both as a Mac/Windows app and on the cloud.
• Build effective systems for agent orchestration. You'll engineer the core system that drives Qualia, improving its ability to reason over long horizons, run parallel experiments, and manage its knowledge.
• Scale environments for agent experiments and training. Help us build the sandboxed compute where agents run complex, high-performance experiments, and scale it to tens of thousands of concurrent deployments.
• Expand what agents can do and where they run. Build and deploy the tools and integrations that connect Qualia to customers' data sources and external systems.

What they want

• Strong full-stack or backend engineering experience, especially with Python
• Comfort working in unfamiliar codebases
• Ability to move quickly in a zero-to-one environment

About Quadrillion · Engineering

Quadrillion is a startup building Qualia, an agentic research platform (think Jupyter or VS Code, but with AI agents that do the actual research). Our users are ML researchers, quants, and data scientists who use Qualia to run an entire research project from a single prompt. We're a 12-person team in NYC, backed by $18.3M from Conviction, Audacious, Bloomberg Beta, ex/ante, and Wes McKinney (creator of pandas).