Data scientists in the US charge about $45 to $155 per hour on vetted marketplaces, with agencies billing $135 to $245. Full-time base salaries typically fall between $115,000 and $195,000. The top of the band belongs to scientists whose models actually reach production and move a business metric, not just a notebook.
Vetted marketplace
$45–155
per hour · USA, 2026
Vetted marketplace · like HireDeveloperUSA.com
$45–$155/hour
Development agency
$135–$245/hour
In-house full-time · base salary
$115,000–$195,000/year
Add 25–40% for benefits, payroll taxes and overhead before comparing with hourly data scientists rates.
Junior
$45 – $75/hour
Mid-level
$75 – $115/hour
Senior
$115 – $155/hour
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Between $45 and $155 per hour through a vetted marketplace, $135 to $245 through an agency, or $115,000 to $195,000 in base salary full-time.
A data scientist answers questions and prototypes models; an ML engineer industrializes them. Small teams often hire one hybrid profile first, then split the roles as the workload grows.
Start with one business question and a defined dataset, scoped in weeks. It tests both the data's readiness and the working relationship before you commit to a bigger program.
The title covers everything from SQL-heavy analysis to deep ML research. Matching the profile to the actual problem, rather than paying for prestige, is where buyers save money.
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