Open AI training and model evaluation roles that call for Full-Stack Engineering expertise, gathered from 5 platforms. Part of Software Engineering.
Pay figures cover the 37 open jobs that publish an hourly rate in USD. They are published rates, not a guarantee of income. Last checked on October 8, 2026.
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.
A senior C# engineer will design and build high-performance data pipelines, annotation tooling, and evaluation systems for AI model training. The role involves full-stack backend development, system optimization, and collaboration with data and research teams to support production infrastructure for AI labs.
A senior C++ engineer is needed to design and optimize high-performance data pipelines, annotation tooling, and evaluation systems for leading AI research teams. This fully remote contract role involves full-stack development, system optimization, and collaboration with data and research teams on production-grade infrastructure.
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.
This is a remote, hourly contract role where you review JavaScript code produced by AI models and judge its correctness, efficiency and style. You will also point out flaws and suggest better alternatives, which helps improve how AI tools write frontend code. It suits experienced frontend developers who can explain code quality clearly and work independently on their own schedule.
This remote contract role asks JavaScript engineers to review code produced by AI models, checking correctness, efficiency and modern ES6+ practices. Work includes spotting bugs and anti-patterns in frontend logic and proposing cleaner alternatives, along with written explanations of the code. It suits experienced frontend developers who can write clearly, and training is provided so prior AI experience is not required.
This remote contract role asks experienced TypeScript developers to review and critique AI-generated frontend code for type safety, interface accuracy, and architecture. The work also includes building reference components and explaining type-driven design choices so that AI models can learn from expert reasoning. It suits independent developers with several years of hands-on frontend experience who work well without supervision.
This remote contract role asks experienced TypeScript frontend developers to review and assess code written by AI models, and to show those models what type-safe, modern web development looks like. It suits engineers who can explain architectural and typing decisions clearly and who prefer to work on their own schedule on task-based assignments.
This remote contract role asks experienced full-stack developers to review and evaluate code and system designs produced by AI models. The work also includes building tooling for data annotation and quality control, done asynchronously on a flexible schedule. It suits engineers with several years of production experience who can give precise technical feedback.
This remote contract role asks senior full-stack engineers to assess AI-generated code across frontend and backend, judging correctness, quality, and security. It also involves building internal tooling for data annotation and reviewing system designs. It suits experienced engineers who can give precise written feedback that helps AI models write better code.
You will check code written by AI models for correctness, speed, and modern JavaScript conventions, and write your own reference solutions to compare against. The role suits experienced JavaScript developers who can explain technical reasoning clearly in writing. It is a remote, hourly, self-scheduled contract with no prior AI experience required.
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.
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 contract role centers on building and tuning high-performance Rust systems that support AI model development, including data pipelines, annotation tooling and evaluation infrastructure. It is aimed at senior engineers with deep Rust expertise who want to work fully remotely alongside research and engineering teams.
This remote contract role asks a senior C++ engineer to design, build and tune high-performance systems that feed data pipelines and evaluation workflows for AI model development. The work also covers annotation tooling, backend services and quality control, with frequent collaboration with data, research and engineering teams. It is aimed at experienced systems engineers who want their code to support frontier AI training at scale.
This contract role centers on building Python systems that power data pipelines, evaluation harnesses and annotation tooling for AI model development. It suits senior Python engineers who can work remotely on part-time hourly engagements alongside research and engineering teams.
This contract role involves building and tuning Python systems that feed data pipelines, annotation tools and model evaluation workflows for AI teams. It suits senior engineers who can work full-stack and backend, with a strong focus on reliability and clean, well-tested code.
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.
This contract role centers on building and improving the high-performance C systems that move and check data for AI model training and evaluation. It suits senior engineers with several years of production C experience who can also work on backend and tooling layers.
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.
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FAQ
37 Full-Stack Engineering AI training jobs are open on SideHustler today. 1 was posted in the last 7 days. Listings are rechecked against the official postings: the latest check on this list was on October 8, 2026.
Among the 37 open roles that publish an hourly rate in USD, pay runs from $35 to $300 per hour, with a median of $75. These are the rates the platforms publish, not a guarantee of income or hours.
Alignerr (24), Mercor (4), micro1 (4), Terac (3) and DataAnnotation (2). You apply on the platform itself, which handles screening, contracts and payment.
The most requested areas of expertise on these listings are Full-Stack Engineering, Backend Development, Code Quality & Review, AI Evaluation, System Design. Each listing states its own requirements.
Apply now opens the official posting on the platform, where you complete the application. You need no account on SideHustler. To see which roles fit your background first, add your resume and every open job is scored against your profile.
