Remote AI Trainer; Coding, Finance, and Medicine/Nursing

TrainBrain builds expert-authored training data and evaluations for AI labs. We're hiring practising professionals in three domains to write, solve, and grade the problems frontier models are measured against. **We're hiring domain specialists in:** * **Finance & Accounting** accountants, financial analysts, controllers, auditors * **Software Engineering** working engineers across languages and problem domains * **Medicine & Healthcare** physicians, pharmacists, nurses, and clinical researchers No AI background required. We train you on the tooling. **What you'd actually do** Every model that returns a broken function, a wrong reconciliation, or an unsafe clinical suggestion got there because no expert caught it during training. You'd be that expert. * Write hard, realistic problems from your domain the kind that sit right at the edge of what current models can handle * Solve them yourself, so there's a verifiable correct answer * Grade model attempts and explain precisely where the reasoning breaks down * Refine tasks until both the difficulty and the gradability are right This isn't your day job in a new wrapper. No clients, no month-end close, no tickets, no on-call. It's written work, on your own schedule. **What we look for** Deep hands-on experience in your field, excellent written English, and sharp attention to detail. Credentials help CPA, CA, ACCA, CFA, MD, MBBS, PharmD, RN, a CS degree but demonstrated expertise counts more than any specific letters. Above all, we want people who show their work and are comfortable saying "I'm not sure, and here's why." **Terms** * **Pay:** $45$100/hr, set by domain, seniority, and assessment performance. Specialised and hard-to-source expertise sits at the top of the band. Paid on a regular cadence. * **Schedule:** You choose your projects, hours, and volume. Scale up in quiet weeks, scale down when your day job gets busy. * **Growth:** Strong contributors move into higher-rate specialist projects and review roles. * **Structure:** 1099 independent contractor (or the local equivalent outside the US), not W-2 employment. You handle your own taxes; company benefits don't apply.