Looking for Computer Science work supporting the development of AI systems? OpenTrain is the hiring organization for roles presented on OpenTrain, and candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they will support.
Use your Tier 2 or Tier 3 IT expertise to help train AI through support-ticket analysis, troubleshooting documentation, and clear technical feedback. This remote contractor role offers flexible scheduling and $30–$55 per hour.
Posted Aug 16, 2026
Evaluate next-generation AI coding agents by reviewing coding trajectories, debugging Python outputs, and validating technical results. This fully remote, one-month contract requires senior Python engineering experience and practical LLM or agent development expertise.
Posted Aug 15, 2026
Use your software development expertise to review code, document architecture, and create programming examples that help train AI systems. Remote contractor work pays $60–$75 per hour and requires 20+ hours per week.
Posted Aug 15, 2026
Build frontend coding environments and reference solutions that help train and evaluate AI models on real software tasks. This remote contract role offers flexible part-time work worldwide at $65–$120 per hour.
Posted Aug 14, 2026
Use your software development expertise to create coding environments, reference solutions, and technical evaluations that help train AI systems. Work remotely as a flexible contractor for 20+ hours per week at $65–$120 USD per hour.
Posted Aug 14, 2026
Help improve AI systems by building backend coding environments, reference solutions, and rigorous evaluations. Remote contract work offers flexible scheduling, 20+ hours per week, and a target rate of $65-$120 per hour.
Posted Aug 14, 2026
Use your software engineering expertise to build and evaluate challenging AI coding tasks involving debugging, feature development, refactoring, and optimization. Remote contractor work offers flexible availability of under 20 hours per week at $50–$100 per hour.
Posted Aug 13, 2026
Help train advanced AI systems by creating coding challenges, reference solutions, and expert evaluations. Work remotely as a contractor for about 15 hours per week, with compensation listed at $50–$100 per hour.
Posted Aug 13, 2026
Use your Tier 2/3 IT support expertise to help train next-generation AI systems through troubleshooting scenarios, technical documentation, and user-support evaluations. Remote, flexible contract work pays $30–$55 per hour.
Posted Aug 12, 2026
Optimize CUDA kernels, C++ code, and shader workflows in a remote contractor role supporting AI training and technical evaluation. Work 20+ hours per week at $60–$100 per hour.
Posted Aug 11, 2026
Probe large language models for subtle failures, create rigorous benchmark tasks, and help researchers improve frontier AI evaluations. This fully remote U.S. role pays $60–$90 per hour and expects about 35 hours weekly.
Posted Aug 8, 2026
Use computational mathematics expertise and AI coding agents to create, debug, evaluate, and explain complex technical workflows. This remote contractor role offers flexible part-time work at $80-$100 per hour.
Posted Aug 8, 2026
Use your computational biology expertise to evaluate AI coding agents through realistic sequence-generation, debugging, and codebase workflows. This remote contractor role offers flexible part-time work at $80–$100 per hour.
Posted Aug 8, 2026
Design enterprise-grade data science scenarios, reference analyses, and evaluation rubrics that teach AI to reason like a senior data leader. This fully remote freelance contract pays $60–$70 per hour for a 40-hour weekly commitment.
Posted Aug 7, 2026
Evaluate AI-generated code and help build programming datasets for large language models. Use your software engineering expertise across C, C++, Python, JavaScript, Java, Rust, and Go in a flexible remote contractor engagement.
Posted Aug 6, 2026
Build realistic cloud environments that test how AI systems design, deploy, secure, troubleshoot, scale, and recover production-grade infrastructure. This worldwide contract role offers flexible work at $50–$100 per hour.
Posted Aug 5, 2026
Build reinforcement learning environments that evaluate how AI models solve real software engineering tasks. Work remotely on reproducible coding challenges, MCP tool interactions, and deterministic model verification for $100–$150 per hour.
Posted Aug 5, 2026
Create reproducible reinforcement learning environments that test how AI models solve real software engineering workflows. This worldwide remote contractor role offers approximately 15 hours per week and listed compensation of $100–$150 per hour.
Posted Aug 4, 2026
Create competitive programming problems, reinforcement learning environments, reference solutions, and C++ checkers that challenge AI models. This flexible remote contract pays $45–$65 per hour for approximately 1–3 months.
Posted Aug 4, 2026
Help evaluate and improve AI systems by building reinforcement learning environments for complex software engineering tasks. Work remotely for approximately 15 hours per week, with listed compensation of $50-$100 per hour.
Posted Aug 4, 2026
Build and optimize production machine learning systems in Python across data pipelines, modeling, deployment, and monitoring. This remote contractor assignment offers 20, 30, or 40 hours per week for candidates in nine eligible countries.
Posted Aug 2, 2026
OpenTrain AI is hiring a senior software engineer to design production-like coding benchmarks and safety tests for frontier coding agents. Contractor role: remote, 20+ hrs/week (min 4 hrs/day), 4–8 week assignment; Python required and 8+ years' experience.
Posted Aug 1, 2026
Probe conversational AI for jailbreaks, prompt injections, and misuse as a remote AI Safety Red Team Specialist for OpenTrain. Contractor, part-time role (20+ hrs/week) paying $24–$35/hr; native English and Thai required.
Posted Jul 30, 2026
Join OpenTrain to perform adversarial, text-based red teaming on conversational AI—find jailbreaks, annotate failures, and produce reproducible attack cases. Remote contractor role paying $17–$25/hr that requires native English and Vietnamese and a background in red teaming or cybersecurity.
Posted Jul 30, 2026
Design and author multi-step scientific evaluation tasks for frontier AI models in a full-time remote US contractor role paying $60–$90/hr. Expect ~35 hours/week building Python reference solutions, defining rigorous criteria, and reviewing model attempts.
Posted Jul 29, 2026
Evaluate and improve agentic coding models by reviewing agent trajectories, verifying outputs, and designing rubrics on a 5-week remote contract. Requires 5+ years of hands-on software experience and daily overlap with PST.
Posted Jul 29, 2026
Expert contractor role to design and optimize GPU software for LLM training (CUDA/WebGPU/GLSL). Remote, 20+ hrs/week, $60–$85/hr; requires advanced GPU programming and strong C++ for host-side integrations.
Posted Jul 29, 2026
Join OpenTrain as an ML Researcher Evaluation Specialist to assess frontier machine-learning researchers and their publication records for a high-priority pilot; part-time contractor role (20+ hrs/week), remote worldwide, paid $60–$100 USD/hr.
Posted Jul 29, 2026
Join OpenTrain as a part-time contractor to design reinforcement-learning code environments and expert reference solutions that teach AI to code, debug, refactor, and optimize — paid $50–$150/hr. Remote role with flexible hours; apply with a strong GitHub/GitLab record.
Posted Jul 29, 2026
Assess AI-generated reproductions of published ML papers: read papers, inspect code/data/output artifacts, rank reproduction attempts, and provide clear written evaluations. Remote, contractor role for experienced ML researchers — 20+ hrs/week.
Posted Jul 25, 2026
Computer Science subject-matter work in AI training can involve reviewing or writing code, judging the quality of technical model responses, evaluating search results, labeling data, or applying computing knowledge to other examples used to prepare and assess AI systems. The exact responsibilities depend on the project. Read each individual live posting carefully for its stated scope, qualifications, eligibility, pay, hours, schedule, location rules, and client-specific requirements.
OpenTrain is the hiring organization for the public roles on OpenTrain. Candidates apply through OpenTrain, and successful candidates may be placed with or referred to the client whose project they will support. Hiring details are specific to each live posting, so review the relevant listing for the requirements and terms attached to that opportunity.
