Senior Frontend JS Reviewer - Remote Contract

AI Trainer Jobs; United States; Remote; USD 148,000 - 210,000; Part time

Job summary

AI Trainer Jobs is seeking a Senior Frontend Developer (JavaScript) to join a remote engineering review track focused on evaluating JavaScript code, debugging traces, and AI outputs for real-world correctness. Reviewers reproduce failures, write the unit test the model should have written, and explain the fix so the modeling team can target the gap.

JavaScript model quality depends on code that compiles, passes tests, and handles edge cases.

Qualifications

• Strong day-job JavaScript experience — read, run, and debug unfamiliar code for Senior Frontend Developer (JavaScript) work.
• Clear ability to write concise unit tests that capture a single failure mode.
• Familiarity with a testing framework (Jest, pytest, JUnit, Go test, RSpec, or equivalent).
• Sharp written reasoning to convince another senior engineer.

Responsibilities

• Run and reproduce JavaScript code outputs in a sandboxed environment for Senior Frontend Developer (JavaScript) assignments.
• Grade JavaScript engineering solutions for correctness, style, and edge-case handling.
• Write minimal failing tests that demonstrate the bug a model output missed.
• Compare paired solutions and rank them with a written rationale tied to the rubric.

Skills

Code review

Debugging

Unit testing

Software engineering judgement

JavaScript engineering

Software engineering

Tools

Jest

pytest

JUnit

Go test

RSpec

Job description

AI Trainer Jobs is seeking a Senior Frontend Developer (JavaScript) to join a remote engineering review track focused on evaluating JavaScript code, debugging traces, and AI outputs for real-world correctness. Reviewers reproduce failures, write the unit test the model should have written, and explain the fix so the modeling team can target the gap.

JavaScript model quality depends on code that compiles, passes tests, and handles edge cases.