$50-75/hrAs published by the platform.
This fully remote contract role is for a senior Python engineer who builds and optimizes the data pipelines, annotation tools and evaluation systems that AI labs use to train and benchmark their models. The work is hands-on with production systems and close collaboration with research and engineering teams. It suits backend engineers with deep Python and full-stack experience who want to lead technical decisions in AI infrastructure.
$50-75/hr
Pay as published by the platform. It is not a guarantee of income or hours.
The platform has not published which countries are eligible for this job.
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.
Official posting: https://www.alignerr.com/jobs/2028dbeb-a553-4da2-8d14-c1af0cf49cea
Last checked on October 8, 2026.
This contract role centers on building the Python infrastructure that AI labs use to prepare and assess training data, including data pipelines, annotation tools and evaluation systems. It is aimed at senior engineers with deep production Python experience who can design distributed systems and lead architecture decisions.
This role involves designing and optimizing Python-based backend systems for data annotation, validation, and AI model training infrastructure. The position requires a senior full-stack engineer to build high-performance data pipelines, asynchronous task queues, and evaluation systems used by leading AI labs.
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.
This remote study asks practicing software engineers to review programming tasks and the evaluation harnesses built to test AI agents on them. You will check whether the tasks, test cases and environment structure reflect realistic software engineering work. It suits engineers with solid experience building, testing and reviewing complex systems.
Posted October 2, 2026
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
Referral link to micro1's job list: search for this role there. Open this exact job
This remote contract role allows you to contribute to an AI training project as a senior full-stack engineer. The tasks involve developing, debugging, evaluating, and refactoring software components covering both front-end and back-end, as well as translating code from one language to another.
Posted September 16, 2026
Referral link to micro1's job list: search for this role there. Open this exact job
