Looking for Data Science work in AI training and data labeling? These roles can apply data science subject-matter knowledge to the human review and preparation that helps develop AI systems. OpenTrain is the hiring organization for roles on OpenTrain. Candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support.
Design and implement realistic, end-to-end data science problems used to train and evaluate advanced AI systems. Senior quantitative candidates with 5+ years of hands-on data science, expert Python and strong SQL skills, paid $50/hr as a part-time contractor.
Posted Dec 3, 2025
Join OpenTrain AI as a part-time contractor applying mathematical statistics with Python (numpy, scipy, statsmodels, pandas) to analyze messy datasets, run hypothesis tests and regressions, and produce clear, reproducible summaries; remote, <20 hrs/week at $25/hr.
Posted Sep 3, 2025
Part-time contractor role building ETL pipelines and interactive dashboards using Python, Plotly/Dash, and SQL. Entry-level, remote work under 20 hrs/week at $25/hr — ideal for hands-on data analysts who document clearly and translate questions into visuals.
Posted Sep 3, 2025
OpenTrain AI seeks a ChromaDB developer to review and label AI-generated ChromaDB code, provide structured technical feedback, and run technical screening interviews; part-time contractor, $25/hr, under 20 hrs/week, fully remote.
Posted Mar 10, 2025
Contractor wanted to collect urine output and serum creatinine data from MIMIC-4 using MedPALM2 or BioBERT to train an LLM-based scoring model; intermediate experience preferred. Fixed-price contract: USD 1,000; open worldwide.
Posted Feb 19, 2025
Data Science work in AI training can involve using analytical and technical knowledge to prepare, label, review, or evaluate examples for artificial-intelligence systems. Depending on the individual posting, the work may include checking data labels, assessing model responses, reviewing code or analytical content, evaluating search results, or applying data science judgment to other assigned examples. Read each live posting carefully because responsibilities and requirements are specific to that role.
OpenTrain is the hiring organization for these opportunities, and candidates apply through OpenTrain. After a successful application, OpenTrain may place or refer the candidate to the client whose project they will support. The individual live posting is the source of truth for eligibility, responsibilities, qualifications, experience, pay, hours, schedule, location rules, and client-specific requirements.
