Senior Python Backend Engineer - Remote Code Review & QA

AI Trainer Jobs; United States; Remote; USD 152,000 - 207,000; Full time

Job summary

AI Trainer Jobs seeks a Senior Backend Engineer (Python) for a remote engineering review track. You will evaluate Python code, debug traces, and assess developer-facing AI outputs against correctness standards.

You will reproduce failures, write the unit tests the model should have written, and explain fixes so the modeling team can target the gap. This is an hourly contract, US-eligible, remote work.

Qualifications

• Strong day-job Python experience and debugging unfamiliar code.
• Ability to write concise unit tests for a single failure mode.
• Familiarity with testing frameworks (pytest, Jest, or JUnit).
• Clear written reasoning to persuade another senior engineer.
• Available for at least 10 hours per week.
• Prior code-review or technical interview grading experience is a plus.

Responsibilities

• Run and reproduce Python code outputs in a sandboxed environment.
• Grade Python solutions for correctness, style, and edge-case handling.
• Write minimal failing tests that demonstrate bugs.
• Compare paired solutions with a written rationale tied to the rubric.
• Tag failure modes with severity scores.

Skills

Python

Unit testing

Code review

Testing frameworks

Technical interviewing

Debugging

Tools

pytest

Job description

AI Trainer Jobs seeks a Senior Backend Engineer (Python) for a remote engineering review track. You will evaluate Python code, debug traces, and assess developer-facing AI outputs against correctness standards.

You will reproduce failures, write the unit tests the model should have written, and explain fixes so the modeling team can target the gap. This is an hourly contract, US-eligible, remote work.