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Bilingual Spanish STEM Expert (Physics, Biology, or Chemistry)

🇪🇸

Mercor • Remote, Chile, Mexico, Spain, United States

Education

Bachelor's

Type

Hourly

Pay Rate

$18–$53/hr

Listed

223d ago

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What We Know About This Role

Interview
Required i As stated in the listing: “20 hours per week”
Weekly hours
20 hrs/week
Contract length
26 weeks

About this role

From the Mercor listing

Mercor is seeking a Bilingual Spanish STEM Expert who is native to the United States (Spanish-speaking), Spain, Chile, or Mexico, with experience in biology / physics / chemistry theory and problem-solving, to develop and refine high-quality reasoning questions that evaluate AI models.

Your expertise in biology / physics / chemistry will ensure the scientific accuracy, rigor, and instructional quality of these assessment items. You will create and evaluate Spanish/English prompts and responses, ensuring scientific precision while maintaining clear, natural Spanish phrasing consistent with academic conventions in the United States (Spanish-speaking), Spain, Chile, or Mexico, and alignment with English where needed.

  • Native-level fluency in Spanish (written), specifically native to the United States (Spanish-speaking), Spain, Chile, or Mexico
  • Strong reading and writing proficiency in English
  • BS or BA in Biology / Physics / Chemistry
  • Familiarity with undergraduate-level biology / physics / chemistry topics
  • Strong writing and critical thinking skills
  • Ability to work independently and meet deadlines
  • 2+ years of experience in teaching, research, or an applied STEM discipline field
  • Experience working with Spanish-language STEM curricula or academic standards in the United States, Spain, Chile, or Mexico
  • Complete a short AI-led interview (approximately 15 minutes)
  • If approved, complete a paid assessment focused on writing and rubric creation
  • Then, if selected, you will be invited to work on the project.
  • Expected commitment: Minimum 20 hours per week
  • Expected duration: Approximately 3–6 months
  • Work environment: Structured project setting with clear goals and tools

Requirements

  • Must be eligible to work in one of: Remote, Chile, Mexico, etc.
  • Fluent proficiency in English (Written & Verbal)
  • Reliable high-speed internet connection

How long hiring takes

Across the AI training platforms we refer candidates to, the median gap between referral and hire is about 30 days. It varies by platform and role, so treat it as a rough guide for this one.

Within 2 weeks
~25%
Within 6 weeks
~60%
Within 3 months
~80%

Talent Pool members

Apply through this link and we can put you forward to Mercor when your profile is a strong match. Not every applicant is submitted. If you're not in the pool yet, set up your profile first.

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What to Expect

Looking at Mercor Languages listings we've tracked, contracts in this domain typically run about 23.5 weeks. Actual length varies by project, but this gives you a realistic baseline going in. This listing's 26-week contract is longer than the typical 23.5-week Mercor Languages engagement.

Based on 64 extracted Mercor Languages listings.

Eligible Languages

Fluent proficiency in English or Spanish

English Spanish

Why this role

This Bilingual Spanish STEM Expert (Physics, Biology, or Chemistry) role pays $18–$53/hr for your Languages judgment directly, without requiring case files, client meetings, or firm overhead to get there.

Talent pool

We're light on Languages candidates

We've matched 72 people with a Languages background against 925 Languages listings we've tracked, so most go out without one. Set up a profile and we'll consider you for a role like this one.

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Skills and categories

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Common questions

Is Mercor for freelancers or full-time contractors?

Mercor places you with one client for a defined engagement, like 'Python Tutor for 3 months', rather than having you grab small tasks from a shared queue. Most roles function as steady contract work, not one-off gigs.

Does Mercor's application require an on-camera interview?

Yes, every applicant records a video interview with an AI interviewer that asks questions about your resume. Clients review that recording to judge communication skills before matching, so there's no way to apply without going on camera.

What does asynchronous AI training work mean in practice?

No set hours, no check-ins, no meetings. You log in when you want, pick up an available task, complete it, and submit; nobody is waiting on you in real time. That's different from remote employment, where you're expected online during business hours. The tradeoff: you're competing with others for available tasks, so an empty queue means there's simply nothing to do until more work is released.

What does Languages work look like for a Bilingual Spanish STEM Expert (Physics, Biology, or Chemistry)?

Tasks here are scoped to Languages, not generic labeling. As a Bilingual Spanish STEM Expert (Physics, Biology, or Chemistry), expect to draw on real domain judgment (evaluating outputs, correcting errors, or providing expert reasoning specific to Languages) rather than following a one-size-fits-all rubric. If you don't have hands-on Languages background, this is likely not the right listing to start with.

What specific skills does this listing call for?

Bilingual, English, and Spanish are named directly in the listing. If you don't have hands-on experience with these, expect the screening process to test for them directly rather than accepting adjacent experience as a substitute.

How many hours per week does this role require?

Based on the listing, this role is scoped at about 20 hours per week, over roughly a 26-week contract. Treat this as a real commitment expectation, not a loose estimate.

How much does this specific role pay?

This listing is posted at $18–$53/hr, an hourly rate. The range reflects experience level and negotiated terms, not a placeholder, so where you land in it depends on your background and the assessment. Pay can change between when we last checked the listing and when you apply, so confirm the current number on the platform's own application page before committing time.

Do I need to be fluent in English or Spanish?

Yes. This role specifically requires English or Spanish proficiency, on top of the English most AI training work assumes by default. If English is not a language you're fluent in, this is not the right role. Filter for your native language to find better-matched listings.

What happens when I click Apply on this listing?

You'll be taken to Mercor's external site to complete your application there. This listing links through a referral, but the process is identical to applying directly; the link just routes you correctly. Create an account on their site and follow their onboarding steps.

Can I apply from outside Chile, Mexico, Spain and 1 other country?

This specific role is open only to people based in Chile, Mexico, Spain, and the United States. If you are somewhere else, applying is unlikely to lead to an offer even if you pass the assessment, because the restriction is usually about where the work can legally be contracted rather than your skills. Read the full description for any tax-residency or right-to-work caveats before you apply, since they can differ by country.

Is there an interview?

Yes. interview (approximately 15 minutes)

How soon will I start working after applying to Mercor?

Not immediately. Mercor is a talent marketplace, not a task queue, so applying puts you in a pool of candidates. You start working only once a specific client, like a major AI lab, selects your profile, and that matching process can take weeks.