Software Engineer, Python

Jobtailor; Deutschland; Remote; EUR 70.000 - 110.000; Vollzeit

Zusammenfassung

Jobtailor seeks an experienced Python engineer to navigate large codebases, understand runtime behavior, and contribute to production systems. You will rewrite and validate workflows, document results, and help improve tooling across commits and repositories.

The role emphasizes fluency in Python internals, experience with web frameworks, and comfort with Git and containerized environments, all while maintaining clear, precise written communication.

Qualifikationen

• 3+ years of professional software engineering experience.
• Substantial production Python experience.
• Ability to navigate large, unfamiliar Python codebases and explain runtime behavior.
• Fluency in Python internals, including 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.

Kenntnisse

Professional Software Engineering

Production Python Experience

Python Internals

Web Frameworks

Git & Command-Line Tooling

Precise English

Tools

Git

Containerized Environments

Command-Line Tooling

Mercor Studio

Type Checkers

Jobbeschreibung

• Select tasks from a pre-validated pool of Python repositories pinned to specific git commits
• Explore repositories and relevant PR or issue history to understand the subsystem
• Rewrite engineering questions to challenge frontier coding agents while remaining well-defined
• Adjust rubrics and foils to reward correct reasoning and reject plausible but incorrect answers
• Run the Check, Golden, Run, and Analyze validation loop in Mercor Studio
• Iterate until every validation stage passes
• Document work in the task README
• Submit tasks for expert review and address reviewer feedback
• Build datasets for AI agents to reason about real Python codebases

Requirements

• 3+ years of professional software engineering experience
• Substantial production Python experience
• Ability to navigate large, unfamiliar Python codebases and explain runtime behavior
• Fluency in Python internals, including 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
• Comfortable with git at commit level, containerized environments, and command-line tooling
• Identity verification and background check
• Signed Terms of Work and CIIAA
• Tax form completion
• Passing a short calibration quiz before task access
• Qualified applicants may be asked to complete a brief technical assessment or provide additional information

Core Competencies

Demonstrates extensive experience in Python programming, including fluency in Python internals and the ability to navigate complex codebases. Proficient in documentation and iterative validation processes to ensure high-quality outputs.

Highest-signal resume keywords

• Professional Software Engineering Experience
• Substantial Production Python Experience
• Fluency in Python Internals
• Experience with Web Frameworks
• Comfortable with Git and Command-Line Tooling

Hard Skills

• Python Programming
• Web Frameworks
• Developer Tooling
• Type Checkers
• Scientific Libraries
• Async Programming
• Event Loops
• C-Extension Boundaries
• Import Machinery
• Descriptors

Soft Skills

• Precise Written English

Certifications & Qualifications

• Identity Verification
• Background Check
• Signed Terms of Work
• CIIAA

Industry Keywords

• Python Codebases
• Validation Loop
• Task README
• Expert Review
• Calibration Quiz

Tools & Technologies

• Git
• Containerized Environments
• Command-Line Tooling
• Mercor Studio