Personal Trainer (Short-Term Contract)

Careerflow Human Data Labs partners with AI companies to bring real-world professional expertise into their products.

We are working with an AI research organization that is building systems capable of handling long, multi-step professional work. To do that well, those systems need to learn from how expert practitioners actually operate, not from generic online content.

We're hiring experienced personal gym trainers to document one long-term task from their own work in structured detail: the triggers, the steps, the decision rules, the tools, the stakeholders, the edge cases, and the judgment calls that don't appear in any playbook.

What you will do:

• Choose one recurring task from your own work that spans days to months (for example, taking a new client from consultation through a completed 12-week program and reassessment)

• Complete a structured online form documenting that task end to end, at a level of detail where someone who has never done the job could follow it

• Cover the specifics: exact thresholds, scoring criteria, escalation paths, message channels, tool access, failure modes

• This is expected to take approximately 10 hours of total time and can be completed in multiple sittings.

• If you do well, you may be extended to provide multiple such submissions.

Requirements

• 3+ years training clients, currently or recently practising, with an active or recent client roster

• Certified (NASM, ACE, NSCA, ISSA, or equivalent)

• Experience with US-based clients

• Comfortable writing at length and being precise about numbers and thresholds

• Available for 8-12 hours of focused work over a 7-10 day window

Process

The entire process is intended to be quick and simple, taking less than an hour or two of your time, with quick results.

• You will need to go through an AI-driven interview (10-15 minutes) explaining your general background

• You will need to perform a small assessment that mimics the actual work (~30 minutes)

• Final review by in-house team

Company: Careerflow Human Data Labs

Type: Part-time contract (1099), fully remote (US)

Location: United States only

Commitment: 10-20 hours/week (flexible scheduling, weekends okay)

Compensation: $60 - 80 / hr (depending on experience)

Start date: Immediate