Remote Senior Python Backend Engineer for AI Data Pipelines

Alignerr Corp.; Seattle (WA); Remote; USD 96,000 - 165,000; Full time

Job summary

Alignerr is seeking a Senior Python Full-Stack Engineer to design and optimize data pipelines, annotation tooling, and evaluation systems used by leading AI labs. This is a remote, hourly contract role for a seasoned engineer who ships production-ready code and collaborates with researchers and engineers.

You will build high-performance Python services, async task queues, and real-time data access via WebSockets, while improving reliability and performance across large-scale data systems.

Qualifications

• 3–5+ years of production-grade Python experience.
• Strong full-stack development background.
• Experience with asynchronous task queues and real-time data protocols.
• Excellent communication in English.
• Ability to commit 20–40 hours per week.

Responsibilities

• Design, build, and optimize high-performance Python systems for AI data pipelines.
• Develop backend services for data annotation, validation, and QC at scale.
• Maintain asynchronous task queues for long-running jobs.
• Optimize queries and serve data via real-time protocols like WebSockets.
• Collaborate with data scientists and engineers to support training workflows.

Skills

Python

Full-stack development

Asynchronous queues

WebSockets

Database optimization

Tools

Celery

PostgreSQL

Redis

Job description

Alignerr is seeking a Senior Python Full-Stack Engineer to design and optimize data pipelines, annotation tooling, and evaluation systems used by leading AI labs. This is a remote, hourly contract role for a seasoned engineer who ships production-ready code and collaborates with researchers and engineers.

You will build high-performance Python services, async task queues, and real-time data access via WebSockets, while improving reliability and performance across large-scale data systems.