Principal Python Engineer - ML Infrastructure

Alignerr(1 month ago)

RemoteContractSenior$113,834 - $155,922 (estimated)Engineering

About this role

The Senior Python Full-Stack Engineer — AI Data & Infrastructure role focuses on building and optimizing high-performance systems that support AI data pipelines and evaluation workflows. The position is contract-based and remote, with a flexible commitment of 20–40 hours per week. This engineer will work closely with data, research, and engineering teams to develop full-stack tooling and backend services for large-scale annotation, validation, and quality control. The role is geared toward experienced Python engineers with strong systems and distributed computing expertise.

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Required Skills

Python Development
Full Stack Development
Systems Programming
Distributed Systems Design
Asynchronous Programming
Performance Optimization
Backend Services
Data Pipelines
Data Annotation Systems
Data Validation

+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.