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Hire freelance and contract data scientists worldwide
YunoJuno connects you with vetted freelance and contract data scientists who build statistical and machine learning models to predict, classify and optimize. Onboard, contract and pay them in 165+ countries, with compliance handled for you.
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150,000+
165+
<24 hrs
Why hire a freelance data scientist?
Predictive work takes statistical rigor and practical modeling skill. A freelance data scientist brings both, and can scope a problem, build and test a model and explain the results without a long ramp-up.
Freelancers also give you flexibility. Bring one in for a proof of concept, a forecasting or recommendation model, an experiment design or a short research sprint, then scale back or hand over to your team. They bring techniques from other sectors.
One directory for every data scientist
Compliant and vetted
Keep up with payments
How does hiring a freelance data scientist work on YunoJuno?
Create your brief
Browse and book data scientists
Contract, work and pay in one place
What does a freelance data scientist do?
A freelance data scientist uses statistics and machine learning to solve business problems, on a project or contract basis. They frame the problem, prepare data, build and evaluate models for prediction, classification, forecasting or recommendation, and work with engineers to put them into use. Typical responsibilities include:
How much does it cost to hire a freelance data scientist?
Day rates for freelance data scientists vary with seniority, methods and specialty, domain experience, whether deployment is included, and location. Each freelancer's day rate is shown on their YunoJuno profile, so you can compare options against your budget before you get in touch.
Every year, YunoJuno analyzes data from the projects booked through the platform and publishes it in the Contractor Rates Report. Download the latest rates report to benchmark day rates and project trends.
Manage your freelance data scientists beyond the hire
Onboarding
Worker classification
Contracts, including IP assignement
Timesheets & approvals
Payments
Reporting & spend visibility
Enterprise teams already seeing results
"YunoJuno is a seamless experience and takes a lot of the stress away. Itreally helps from an agility and productivity perspective, quickly answering the business needs and helping to create a much more diverse and output-focused team. The quick payment of freelancers is a game changer — we have managed to reduce time to hire from a week to a couple of hours."
"There were a few critical results for us. The obvious one was keeping everything housed in one place — payments and keeping track of monthly spending. Perhaps more importantly, we were able to build up a bulletproof directory of talent. This has been super helpful for us as a team and as a business, across our regions."
Frequently asked questions
Hire a freelance data scientist when you want to predict outcomes, forecast demand, segment customers or personalize experiences, when you need a proof of concept, or when your team lacks modeling skills. They're also useful for experimentation, for reviewing existing models and for covering a vacancy.
Data scientists vary by method and domain. Some focus on machine learning and prediction, others on statistics, experimentation, natural language processing or computer vision. Some are strongest in research and modeling, others in putting models into production. For analysis and reporting rather than modeling, a data analyst may fit better, and a data engineer builds the pipelines models depend on. Match their experience to your problem, data and tools.
Browse all freelance data scientists on YunoJuno.
Look for a mix of statistical and engineering skills:
- Strong statistics and machine learning fundamentals
- Proficiency in Python or R and common libraries
- Experience with SQL and large datasets
- Model evaluation, validation and experiment design
- Experience taking models to production, where needed
- Domain knowledge relevant to your problem
- Ability to explain results to non-technical stakeholders
- Clear documentation and reproducible work
Useful questions to ask before you book:
- Which problems and sectors have you built models for, and what was the outcome?
- How do you frame a business problem as a modeling task?
- How do you prepare data and choose features?
- How do you evaluate and validate a model?
- How do you design and analyze experiments?
- How do you take a model to production and monitor it?
- Which tools and libraries do you use?
- How do you explain results to non-technical stakeholders?
The cost of a freelance data scientist depends mainly on seniority, methods and specialty, domain experience, whether deployment is included, and location. Freelancers set their own day rates, which you can see on their YunoJuno profile before you make contact.
For benchmarks, see YunoJuno's Contractor Rates Report, built from rates data on projects booked through the platform. For what it costs to use YunoJuno itself, see the pricing page.
Post a brief or search the network, and book a freelance data scientist based in or outside your own country. YunoJuno supports payments in 165+ countries and assesses worker classification for every engagement, so you can engage independent talent without managing the compliance work yourself. That includes US contractor compliance for 1099 and W-2 engagements and IR35 status determinations in the UK, as part of YunoJuno's wider global compliance coverage.
It is also fast. Onboarding takes under 5 minutes, worker classification around 15 minutes, and a contract can be in place in under 24 hours. YunoJuno also provides misclassification indemnification, adding protection if a classification is ever challenged.
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