Backend Developer - Data Annotation Systems

Alignerr(2 months ago)

RemoteContractSenior$126,591 - $172,910 (estimated)Engineering

About this role

The Senior Python Full-Stack Engineer — AI Data & Infrastructure role at Alignerr focuses on building and optimizing systems that support AI data pipelines and model evaluation workflows. The position involves working on production systems and high-impact research infrastructure used by leading AI labs. The engineer will contribute to tools and services that enable large-scale data annotation, validation, and quality control. This role is fully remote with a flexible 20–40 hours per week contract commitment.

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Required Skills

Python Development
Full-Stack Development
Systems Programming
Asynchronous Queues
Database Optimization
Real-Time Protocols
WebSockets
Backend Services
Data Pipelines
Data Annotation

+10 more

About Alignerr

alignerr.com

Alignerr is a platform that pays domain experts to train and improve AI by completing remote, flexible tasks on their own schedule. It connects thousands of subject-matter experts with AI teams via a web app to perform data labeling, annotation, evaluation, and other human-in-the-loop work. Experts earn money for contributing their knowledge while companies get higher-quality, domain-specific data and feedback to boost model performance. Alignerr is used to scale and streamline human-centered workflows for AI training and validation.

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