OpenRecently verified

Senior Backend Engineer - AI Data Platform

  • Software Engineering
  • Platform: Alignerr
  • Level: Expert

$50-75/hrAs published by the platform.

About this job

This contract role calls for a senior C engineer to build and tune the data pipelines, annotation tools and evaluation systems used to train AI models. The work is fully remote with flexible hours of 20 to 40 hours a week, and it suits engineers with long experience in scalable backend services.

What you'll do

  • Design and optimize high-performance C systems for AI data pipelines and evaluation workflows.
  • Build backend services and tooling for large-scale data annotation, validation and quality control.
  • Improve the reliability, performance and safety of existing C codebases.
  • Find bottlenecks and edge cases, then ship scalable production fixes.

Requirements

CBackend servicesRESTful APIsRPC servicesSystems programmingFull-stack developmentMessage bus architecturesCloud-native data services
  • 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/5766041e-24ee-4b23-b08b-7ca7aedc4bdb

Last checked on October 8, 2026.

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