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AI Opportunities. Real Impact.

Connecting skilled
professionals with
the future of AI work.

AI opportunities for researchers, coders, domain experts, and problem-solvers — worldwide.

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Excellent
4.6 out of 5 on
def
return
CODING & STEM
D
Medical AI Research RLHF
94%
87%
Domain Expert ✓
AI EVALUATION TASK
Rate response
GLOBAL NETWORK
India Germany Brazil USA +116
120+
Countries
A
S
T
30K
30,000+
Professionals
Onboarded
2,500+
Professionals Onboarded
Every Month
30,000+
Professionals Onboarded
2,500+
Professionals Onboarded Every Month
120+
Countries Represented
50+
Partner Companies & AI Platforms
10,000+
AI Opportunities Shared
What We Do

Human intelligence
powers AI progress.

From training and evaluation to research and domain expertise, our contributors help build the AI systems shaping tomorrow.

Learn more
AI Training & Evaluation
Improve AI accuracy and safety through human feedback. Rate responses, compare outputs, and guide model behaviour.
Research & Reasoning
Solve complex problems and support model advancement. Domain experts shape the frontiers of AI capability.
Domain Expertise
Apply your knowledge in specialised fields — medicine, law, finance, science — that power smarter, more accurate AI.
Flexible & Remote
Work on meaningful AI projects from anywhere in the world. Flexible scheduling, asynchronous tasks, global access.
Explore Opportunities

Find your role in the AI economy.

From training frontier models to evaluating AI outputs — every skill has a place. Remote, flexible, and open globally.

View all opportunities
AI Model Training
Teach AI models right from wrong. Rate responses, write instructions, and shape how next-gen models think and behave.
Remote Flexible hours
AI Quality Evaluator
Be the human check on AI. Assess outputs for accuracy, safety, and clarity — your judgement makes AI more trustworthy.
Remote High demand
AI Research Contributor
Work on cutting-edge AI problems with domain knowledge. Scientists, analysts, and researchers especially valued.
Remote Long-term
Data Annotation
Label text, images, and audio that powers intelligent systems. No prior AI experience required — attention to detail matters.
Remote Beginner-friendly
Domain Expert Roles
Doctors, lawyers, and financial analysts — your expertise is rare and in high demand for specialised AI training projects.
Premium pay Selective
Coding & STEM Tasks
Solve technical problems, review code quality, and evaluate mathematical reasoning. Developer skills command top rates.
Top rates Global
Multilingual AI Work
AI needs to speak every language. Contribute native-level evaluation, translation, and cultural context across 30+ languages.
Remote 30+ languages
Red-Teaming & Safety
Probe AI systems for weaknesses, biases, and failure modes. Critical work for the safety of AI at scale.
Expert track Remote
How It Works

Simple, transparent, and fair.

Whether you're a professional or a company — see exactly how Crossing Hurdles works for you.

For Candidates
Join the network in four simple steps.
Applying is always free — no hidden costs, no fees, ever. We match you to the right opportunities.
1
Create Your Profile
Tell us about your background, skills, domain expertise, and languages. The more detail, the better we can match you.
2
Browse Opportunities
Explore AI projects that match your expertise — from training and evaluation to coding, research, and domain-specific tasks.
3
Apply & Complete Assessments
Some roles require platform-specific evaluations. We never influence or alter results — your performance speaks for itself.
4
Start Contributing
Once matched and onboarded, work on meaningful AI projects remotely — on your schedule, from anywhere in the world.
Important: Applying does not guarantee selection. We never charge candidates at any stage.
Explore Opportunities
Contributor Stories

What our network says.

Real experiences from professionals across the global Crossing Hurdles network.

"Crossing Hurdles helped me get employed in a new field. I am grateful for this chance and very happy about our quick and effective interaction. I recommend Crossing Hurdles to anyone looking for new opportunities!"
E
Elena Efimenko
Verified Trustpilot Review · Spain
"A big thank you to Crossing Hurdles for consistently sharing opportunities and supporting me with job applications at Mercor. I really appreciate the updates and the effort taken to keep candidates informed throughout the process. I would definitely recommend them to others looking for job opportunities."
M
Mary
Verified Trustpilot Review · Canada
"Crossing Hurdles was very helpful throughout my hiring journey and played an important role in helping me secure my position at Mercor. The communication was professional, supportive, and clear during the process. I would definitely recommend them to other candidates."
M
Matheus Gomes
Verified Trustpilot Review · Argentina
"Thank you Crossing Hurdles for connecting me with Mercor and for helping me find a job opportunity that feels like a perfect match for my skills and goals. I truly appreciate your support and effort throughout the process."
K
Khush Jani
Verified Trustpilot Review · Canada
"The experience with Crossing Hurdles and Mercor was amazing — having a remote job where your work gets noticed. The staff was very helpful and promptly solved questions and made sure everyone was on the right path to finishing their projects."
S
Sidney
Verified Trustpilot Review · Brazil
"The hiring experience was smooth, and the project's specifications matched what was advertised, including the pay and onboarding process."
E
Emilio
Verified Trustpilot Review · Greece
"Crossing Hurdles is a great way to get hired! Whenever this team reaches out to me, I always follow the link and apply to the recommended position. They offer realistic opportunities I am excited about pursuing. I highly recommend following leads sent by Crossing Hurdles."
J
Jennifer Rose
Verified Trustpilot Review · United States
"Crossing Hurdles set me on the right career path and provided the networking opportunities I needed to connect with Mercor, a prominent and rapidly expanding AI training company."
M
Mohamed Tarek
Verified Trustpilot Review · Egypt
"I was cautious at first but this job source of AI-related contracts is legit. I learned a lot more about the technical side of prompt writing. The application process is fast and efficient. The remote work allowed for real flexibility in hours."
G
GanaGirl
Verified Trustpilot Review · United States
Our Commitments

Transparent by design.

We believe the AI contributor economy deserves a platform that operates with complete honesty.

✓
No Candidate Fees — Ever
Applying, being evaluated, and accessing opportunities through Crossing Hurdles is always completely free. No exceptions. No hidden charges.
✓
No Guaranteed Placements
We do not guarantee job offers or project assignments. Selection is platform-led and merit-based. We'll never mislead you about your chances.
✓
Independent Evaluation
Assessments are conducted independently. Crossing Hurdles does not manipulate or influence evaluation outcomes at any stage.
✓
Honest Communication
We don't exaggerate earnings potential or partner relationships. Our network is real and growing — we communicate accurately about what it offers.
✓
Platform-Led Decisions
Hiring and selection decisions belong to the platforms we work with. Crossing Hurdles facilitates access — it does not control outcomes.
✓
No Hidden Agenda
Our business model is B2B. We work with companies, not candidates. There are no subscriptions or processing fees for contributors at any point.
Global Network

Embedded in the AI economy, worldwide.

A contributor network spanning 120+ countries and 30+ languages, serving AI platforms, research labs, and enterprise technology companies across every major market.

120+
Countries
30+
Languages
50+
Partner Platforms
30K+
Professionals
From Our Blog

Insights on AI work & opportunities.

View all posts
FEATURED · INDUSTRY INSIGHT
6 min read · May 2025
The Quiet Boom in AI Training Jobs
Billions are being spent on human-powered AI training — yet most people have never heard of these jobs. Here's why they exist, who's hiring, and how to get in.
Read more
AI TRAINING
5 min read · May 2025
How AI Model Training Actually Works — And Where You Fit In
A plain-English breakdown of RLHF, data annotation, and evaluation — and exactly why human contributors are irreplaceable in this process.
Read more
CAREER GUIDE
7 min read · April 2025
How to Qualify for AI Evaluation Work — A Step-by-Step Guide
What skills you actually need, how assessments work, what platforms look for, and how to maximise your chances of being accepted.
Read more
DOMAIN EXPERTS
6 min read · March 2025
Why Doctors, Lawyers and Scientists Are In Demand for AI Work
Frontier AI needs deep domain knowledge to stay accurate and safe. Here's why your professional expertise is uniquely valuable — and how to leverage it.
Read more
Common Questions

Everything you need to know.

Quick answers to the questions we hear most often — from candidates and companies alike.

Yes — always. We never charge candidates to register, apply, or access opportunities. Our business model is funded entirely by the companies that use our network. Any platform that charges you a "registration fee" or "access fee" to find AI work is not a legitimate operator.

No specific degree or certification is required. What matters is clear thinking, attention to detail, and domain expertise in your field. We have contributors ranging from recent graduates to senior professionals — doctors, lawyers, engineers, developers, linguists, and generalist writers. Roles are matched to your background, not a checklist.

We review applications on a rolling basis and typically respond within 5–10 business days. Response times can vary depending on project demand and the volume of applications for your profile type. We'll always let you know either way — you won't be left without an answer.

Our network is global and most AI training work is fully remote. We have contributors in 50+ countries across Africa, Asia, Europe, Latin America, and beyond. Some specific projects may have geographic or language requirements, but we always make those restrictions clear upfront.

Payment terms and methods are set by each project and disclosed before you commit to any work. We only place contributors on projects with clear payment structures — hourly, task-based, or milestone-based. We never withhold payment or create surprise deductions. Payment is typically processed via the project platform (such as Appen, Scale, or Surge) or directly for managed service engagements.

For most standard profiles, we can provide a shortlist within 3–7 business days. For specialist roles (medical, legal, highly technical) or large-scale staffing, allow 1–2 weeks for a full-quality shortlist. Our managed service model can also embed a vetted contributor team within your workflow for ongoing projects.

We are a network and connector — not a platform with our own projects. We match contributors to opportunities across a broad range of AI labs, research platforms, and enterprise AI teams. We're also differentiated by our focus on the Global South and underrepresented contributor pools, and our strict no-fees-for-candidates policy. We don't just list jobs — we actively advocate for the contributors in our network.

Get Started

Ready to take the next step?

Candidates apply for free via LinkedIn. Companies reach out directly to discuss partnership, sourcing, or a managed service engagement.

For Candidates
Join the Network — Free
Apply via LinkedIn — it takes 5 minutes. Joining is always free, and we'll match you to opportunities that fit your skills and background.
Apply Now — It's Free support@crossinghurdles.com
For Companies
Partnership Enquiries
Looking to source AI contributor talent? Tell us about your project and we'll connect you with the right professionals.
partnerships@crossinghurdles.com