Open AI training and model evaluation roles that call for System Design expertise, gathered from 8 platforms. Part of Software Engineering.
Pay figures cover the 89 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 contract role asks engineers to write, debug and review code, then judge code produced by AI models so that those models learn to reason about software like experienced developers. It suits software engineers who write clean code, explain their technical choices clearly in writing, and work independently on their own schedule.
This remote contract role asks a senior engineer to design, build and scale the backend systems behind AI products, including training, evaluation and deployment pipelines. It suits experienced software engineers who enjoy hard architectural problems and want to work asynchronously alongside ML researchers and product managers.
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 is a remote contract role for a senior Rust engineer who will design, optimize, and lead the backend systems behind AI data pipelines and model evaluation workflows. The work involves reliability, performance, and safety of production codebases, and suits experienced systems engineers who can also lead architecture discussions with research and engineering teams.
This contract role asks a senior cloud security expert to assess cloud architectures on AWS, Azure, and GCP for design weaknesses, IAM risks, and misconfigurations before they lead to breaches. The work is remote and hourly, with recurring assessments and reports that turn technical findings into prioritized mitigation guidance. It is aimed at experienced cloud security architects who can work on complex, large-scale environments.
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 remote contract role asks senior Rust engineers to review and evaluate Rust code generated by AI models, checking memory safety, concurrency correctness and performance. Engineers also build high-performance tooling and backend services for large-scale data validation. It is aimed at experienced systems programmers who want self-directed technical work.
This contract role centres on designing, building and tuning high-performance Rust systems that support AI data pipelines, evaluation workflows and annotation tooling. It suits senior Rust engineers who write safe, performant and correct code at scale and can work independently in an asynchronous setting. The resulting infrastructure feeds model training and evaluation work for research teams.
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 tuning high-performance Rust systems that power AI data pipelines, annotation tools, and model evaluation workflows. It suits senior engineers with at least five years of production Rust experience who care about performance, concurrency, and correctness in large-scale systems.
This contract role centers on designing, building and scaling production software that supports AI training, evaluation and deployment pipelines. It suits experienced backend engineers who can architect reliable systems, debug distributed infrastructure and work independently in an asynchronous, remote team.
This is a remote, hourly contract role for senior software engineers who will help build, test and improve autonomous AI coding agents. The work centers on judging whether AI-written code is correct, efficient, secure and well designed, and on finding where these agents fail. It suits experienced engineers who can read unfamiliar codebases and explain clearly why code works or breaks.
This remote contract role involves designing and building the software that measures how well AI models perform, including evaluation pipelines, automated testing harnesses, and internal dashboards and APIs. It suits senior engineers who have shipped production systems and want to work closely with AI research teams on reliable, repeatable evaluation tooling.
This contract role asks a senior software engineer to build and scale the backend infrastructure behind AI products, working closely with machine learning engineers and researchers. It suits experienced engineers who can work independently on production-grade services, data pipelines, and APIs.
This contract role is for senior engineers who build the backend systems behind AI model development. The work covers high-performance pipelines, annotation tooling, and evaluation infrastructure that support model training and benchmarking. It is aimed at engineers with several years of production experience in Go, Rust, Python, or C++ who are fully remote and available 20 to 40 hours per week.
This freelance role asks you to write code and to evaluate code produced by AI models, helping make AI coding assistants more accurate and reliable. You will review AI outputs for correctness, efficiency, and security, then explain your judgments in clear written feedback. It suits experienced programmers who can work independently on a flexible, remote schedule.
This remote contract role asks experienced software engineers to assess and rank code produced by AI models. The work involves judging correctness, efficiency and maintainability, then writing structured feedback that helps coding assistants learn what good code looks like. It suits developers who prefer flexible, independent, task-based work.
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FAQ
93 System Design AI training jobs are open on SideHustler today. 2 were 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 89 open roles that publish an hourly rate in USD, pay runs from $20 to $350 per hour, with a median of $75. These are the rates the platforms publish, not a guarantee of income or hours.
Alignerr (46), Mercor (29), micro1 (9), DataAnnotation (5), Handshake AI (1), Terac (1), Vetto (1) and xAI (1). You apply on the platform itself, which handles screening, contracts and payment.
The most requested areas of expertise on these listings are System Design, Code Quality & Review, Backend Development, AI Evaluation, ML Infrastructure. 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.
