[Hiring] Software Engineer @Weekday AI

Role Description

We are seeking experienced Python engineers to build the dataset that teaches AI agents to reason about real codebases. Codebase Q&A is a reinforcement-learning environment for training AI agents to explore and reason about software repositories they have never seen before. You will build difficult codebase-exploration tasks that require runtime evidence to resolve.

This track works on widely deployed Python codebases including:

• Django
• Twisted
• Scrapy
• SymPy
• mypy
• pip
• coverage.py
• mitmproxy
• Certbot
• Tornado
• Werkzeug
• sqlfluff
• Meson

Contract, task-based work paid at $130 per approved task, performed remotely in our Studio.

Qualifications

• 3+ years of professional software engineering experience, with substantial production Python.
• Demonstrated ability to navigate a large, unfamiliar Python codebase and explain how it behaves at runtime.
• Fluency in Python internals that matter in real systems: import machinery, descriptors and metaclasses, async and event loops, packaging, and C-extension boundaries.
• Experience with web frameworks, developer tooling, type checkers, or scientific/numeric libraries is highly relevant.
• Precise written English: the questions and rubrics you write are the product.
• Comfortable with git at commit level, containerized environments, and command-line tooling.

Requirements

• Select tasks from a pre-validated pool of Python repositories.
• Explore the repository until you genuinely understand the subsystem in question.
• Rewrite the task's question to defeat frontier coding agents while remaining well-defined.
• Adjust rubrics and foils to reward correct reasoning and reject plausible-but-wrong answers.
• Run the full validation loop in Studio — Check, Golden, Run, Analyze — and iterate until every stage passes.
• Document your work in the task README and submit for expert review.

Benefits

• Fully remote and asynchronous work environment.
• Expert team leads across US, India, and Nigeria time zones.
• Time tracked with Insightful; platform access provisioned through Okta.
• Onboarding requires identity verification, a background check, signed Terms of Work and CIIAA, a tax form, and passing a short calibration quiz.
• Payment is per approved task; every task is reviewed by a second engineer and a super reviewer before acceptance.

Application Process

• Submit your resume or relevant technical background to get started.
• Qualified applicants may be asked to complete a brief technical assessment or provide additional information.
• We consider all qualified applicants without regard to legally protected characteristics and provide reasonable accommodations upon request.