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Full-Stack Developer - AI Trainer (Brazil)

Job Overview

Location

Brazil

Job Type

Contract

Category

Software Engineering

Date Posted

June 13, 2026

Full Job Description

đź“‹ Description

  • • Design and implement multi-file coding tasks focused on bug resolution, feature implementation, refactoring, and test generation for AI training datasets.
  • • Write clear, precise natural-language specifications and reference implementations that mirror real-world software engineering scenarios.
  • • Develop and extend comprehensive unit and integration test suites using frameworks such as pytest, Jest, JUnit, xUnit, or Go testing.
  • • Review peer-generated coding tasks for correctness, clarity, realism, and alignment with specified requirements.
  • • Identify edge cases, ambiguities, and potential failure modes in code submissions to ensure robustness and accuracy.
  • • Ensure strict alignment between task specifications, reference code, and expected outputs across all evaluated projects.
  • • Work within production-grade codebases, navigating large, complex multi-file systems to simulate authentic development environments.
  • • Contribute to the creation of high-quality, production-realistic coding challenges used to train and evaluate AI models.
  • • Deliver complete and correct reference implementations with thorough documentation and validation artifacts.
  • • Provide structured, actionable feedback on peer submissions to improve task quality and consistency.
  • • Operate on a project-based, part-time consultant basis with full control over schedule and workload.
  • • Use personal tools and infrastructure; no company-provided equipment or software is provided.
  • • Collaborate remotely with an AI lab and other global contributors without direct team supervision.
  • • Accept payment on a per-project basis, with rates estimated based on anticipated completion time.
  • • Maintain professional written proficiency in English for all documentation, specifications, and feedback.
  • • Engage in code reviews, refactoring, and production migrations as part of task design and evaluation.
  • • May simultaneously provide services to other vendors or employers, provided those arrangements do not conflict with project obligations.

🎯 Requirements

  • • Advanced professional written proficiency in English
  • • 3–7 years of professional software engineering experience
  • • Strong proficiency in Python and JavaScript/TypeScript
  • • Backend or full-stack development experience in production systems
  • • Experience with testing frameworks (e.g., pytest, Jest, JUnit, xUnit, Go testing)
  • • Proven ability to debug and navigate large, multi-file codebases

🏖️ Benefits

  • • Project-based compensation with flexible, self-directed scheduling
  • • Ability to work remotely with no location restrictions within Brazil
  • • Opportunity to contribute to cutting-edge AI training initiatives
  • • Potential to work with multiple vendors simultaneously, subject to their policies

Skills & Technologies

Python
JavaScript
TypeScript
Java
Go
Full Stack
Remote

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About Anyone AI Inc.

Anyone AI provides no-code computer-vision infrastructure that lets companies build, train and deploy image and video models without machine-learning teams. Its cloud platform automates data labeling, model optimization and edge deployment for retail, manufacturing, logistics and healthcare use cases. The company offers pre-trained APIs for object detection, counting and anomaly identification, plus dashboards for continuous monitoring and compliance. Founded in 2021, it targets enterprises seeking rapid AI adoption while avoiding costly specialists and infrastructure setup.

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