The single most consistent practical advice across our site — apply to multiple platforms simultaneously, not sequentially — has never had its own dedicated article until now. Here is the full, step-by-step approach.
Why Sequential Application Wastes Weeks
As we describe in our first-task lessons piece, waiting for one platform's response before applying to the next is one of the most costly beginner mistakes in terms of wasted time. Platform response times vary from days to several weeks. Applying sequentially means spending that waiting time doing nothing, when you could be in the application queue at three platforms simultaneously. The bottleneck in this work is approval, not capacity — apply to all of them at once.
The Recommended Starting Stack
Apply to these three simultaneously on your first day:
- Mercor — fastest typical approval, AI interview completion in 20-30 minutes, broadest task variety. Start here first since the AI interview is the most time-intensive step of the three.
- SME Careers — short application form only, no interview, often approves within days. Apply immediately after Mercor.
- DataAnnotation.tech — 1-3 hour assessment, but this can be completed any time within their window. Start the assessment the same day or the next day.
These three give you the broadest initial coverage: a marketplace (Mercor), a specialist-credential-first platform (SME Careers), and a generalist assessment-gated platform (DataAnnotation.tech).
Adding Your Second Wave (Week 2)
Once your first three applications are submitted, apply to:
- Outlier AI — straightforward application, good for writers and subject-matter contributors
- micro1 — if you have technical/coding background; the Zara interview is time-intensive, worth prioritizing once your first wave is in motion
- Alignerr — specific job listings, apply to any that match your background
The application backlog is the bottleneck, not your capacity to do the work. If you wait to be approved at one platform before applying to the next, you have wasted the approval wait time at every subsequent platform. Apply in parallel — always.
Practical Parallel Application Timeline
| Day | Action |
|---|---|
| Day 1 (morning) | Complete Mercor AI interview; submit SME Careers application |
| Day 1 (evening) | Start DataAnnotation.tech assessment |
| Day 2 | Complete DataAnnotation assessment; submit Outlier AI application |
| Day 3-4 | Complete micro1 Zara interview (if technical); check all spam folders |
| Week 2+ | Follow up on approvals; add Alignerr and RemoExperts |
Set Up Your Payment Method First
Before starting any application: open a Wise account if you don't have one, since most platforms pay in USD and you'll need a USD-receiving account for conversion. This is a one-time setup that removes a delay when your first payout is ready.
Check Spam Proactively
As we note in our first lessons piece, acceptance emails from several platforms — particularly DataAnnotation.tech — frequently go to spam. Check your spam folder daily for the first two weeks after each application, not just once.
The Multi-Platform Approach
The highest-earning AI training contractors don't rely on a single platform. Task availability on any platform varies by project cycle — some weeks are busy, some are slow. Running 2-3 platforms simultaneously means your weekly income is smoothed across multiple task pools. The application investment (typically 20-45 minutes per platform) is paid back within the first week of active work on each new platform. See our full platform guide for the complete ranked list and Platform Picker for a personalised recommendation based on your background.
Getting Started This Week
The most common mistake is applying to one platform and waiting for full approval before applying to the next. Apply to 3 platforms in the same week: Mercor (AI video interview, 20 min), DataAnnotation.tech (skills assessment, 30-45 min), and one specialist platform matched to your background. All three approval processes run in parallel, and you'll have at least one active within 2 weeks rather than waiting 6 weeks sequentially.
Ready to Start?
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