OpenRecently verified

Senior Python Full-Stack Engineer - AI Data & Infrastructure

  • Software Engineering
  • Platform: Alignerr
  • Level: Expert

$50-75/hrAs published by the platform.

About this job

This contract role centers on building and improving the Python data pipelines, annotation tools and evaluation systems used to train AI models. It is aimed at a senior engineer with at least five years of production Python experience and a strong full-stack and systems background, working remotely at 20 to 40 hours per week.

What you'll do

  • Design and optimize high-performance Python systems for AI data pipelines and model evaluation.
  • Build full-stack tooling and backend services for large-scale data annotation and quality control.
  • Improve the reliability, performance and safety of existing Python codebases.
  • Identify bottlenecks and edge cases in data and system behavior and implement scalable fixes.

Requirements

Python
  • 5+ years of experience

Pay

$50-75/hr

Pay as published by the platform. It is not a guarantee of income or hours.

Location

The platform has not published which countries are eligible for this job.

How to apply

You apply on Alignerr, Labelbox's expert network: create a profile, complete an AI-led interview and skills assessment, then get matched to projects in your field.

All Alignerr jobs and how the platform works

Source

Official posting: https://www.alignerr.com/jobs/2e65ec91-2929-4e89-b79e-3d62ee23821c

Last checked on October 8, 2026.

Similar jobs

  • Software Engineering
  • Platform: Alignerr
  • Level: Expert

A senior Python engineer will design and optimize high-performance data pipelines, annotation tooling, and evaluation systems for AI model training at scale. This fully remote contract role requires building full-stack infrastructure that processes large datasets and supports research workflows across distributed teams.

  • Software Engineering
  • Platform: DataAnnotation

You will evaluate AI-generated code by running models on real engineering tasks, analyzing their output against production standards, and stress-testing them to find failures. This role is ideal for experienced software engineers who want to contribute to AI model improvement through rigorous code review and red-teaming.

Talent poolRecently verified$40-150/hr
  • Software Engineering
  • Platform: micro1
  • Location: 58 countries

You will create realistic programming tasks and verifiers to train AI systems, leveraging your expertise in backend development and your awareness of software security issues. This role is for experienced engineers in service architecture and security best practices, with no AI prerequisite.

Posted September 20, 2026

OpenRecently verified$30-100/hr

Referral link to micro1's job list: search for this role there. Open this exact job

  • Software Engineering
  • Platform: micro1
  • Location: 58 countries

This role involves contributing to an AI training project as an open source software engineer. You will explore unfamiliar repositories, implement and debug front-end and back-end components, and evaluate patches generated by AI. The ideal candidate is an experienced developer with significant contributions to established open source projects.

Posted September 16, 2026

OpenRecently verified$100-150/hr

Referral link to micro1's job list: search for this role there. Open this exact job

  • Data & Machine Learning
  • Platform: Mindrift
  • Location: 64 countries
  • Level: Expert

A freelance Senior Python Data Scraping Engineer role focused on building and maintaining end-to-end data extraction workflows for complex websites. You will combine web scraping expertise with data processing to deliver high-quality, validated datasets for real-world applications, handling dynamic content and scaling operations efficiently.

Posted October 3, 2026

OpenRecently verifiedPay not disclosed

Keep exploring