Full-Stack Developer - AI Trainer (Brazil)

Anyone AI Inc.

Job Overview

Location

Brazil

Job Type

Contract

Full Job Description

📋 Description

• Full-Stack Developer - AI Trainer role focused on designing and evaluating realistic software engineering tasks for a leading AI Lab, contributing to the advancement of AI training data quality.
• Day-to-day responsibilities include designing and implementing multi-file coding tasks across bug fixing, feature development, refactoring, and testing; writing clear natural-language specifications and reference implementations; developing and extending unit and integration test suites; reviewing peer-generated tasks for correctness, clarity, and realism; identifying edge cases and ambiguities; and ensuring alignment between specifications, code, and expected outputs.
• Anyone AI Inc. is a remote-first company collaborating with top AI labs to build high-quality training datasets; the team consists of expert contributors working on project-based evaluations to improve AI model performance through precise, realistic coding challenges.
• This role offers the opportunity to deepen expertise in full-stack development, software design, and AI training data creation while working on impactful projects that shape the future of AI model evaluation and learning systems.

🎯 Requirements

• Advanced professional written proficiency in English
• 3–7 years of professional software engineering experience
• Strong proficiency in Python and JavaScript/TypeScript; working knowledge of Java, C#, or Go
• 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
• Experience with code reviews, refactoring, and production migrations

🏖️ Benefits

• Part-time, project-based engagement with flexible scheduling
• Fully remote work from Brazil
• Per-project payment structure with hourly rate estimates based on anticipated completion time
• Autonomy to control your own schedule and use your preferred tools
• Opportunity to simultaneously provide services to other vendors/employers (subject to their allowances)
• Contribution to high-impact AI training data used by leading AI labs

Skills & Technologies

Python

JavaScript

TypeScript

Java

Full Stack

Remote

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Anyone AI Inc.

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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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