AI Training Data Specialist.
Boston.
$126,000
median salary, 20% above the national average
$90,000 to $173,000. Last updated April 2026.
Get the job.
Data points to own the conversation.
Boston is 22% more expensive than the national average. For AI Training Data Specialists, that shakes out to a median of $126,000, with the full range spanning $90,000 to $173,000. Expertise in dataset curation, annotation pipeline management, and data quality assurance for AI training drives compensation. Know the range before you walk in.
Salary range
Where do you fall?
Salary by experience
The gap between entry and lead level is typically $113,000. Where you land depends on years of experience and what you bring to the table.
Entry (0-2 yrs)
$82,000
to $101,000
Mid (3-5 yrs)
$107,000
to $132,000
Senior (6-9 yrs)
$139,000
to $164,000
Lead (10+ yrs)
$158,000
to $195,000
Salary trend
+6% YoYTotal compensation
Base salary is not the full picture. Equity, bonus, and signing can add $64,000 to the total package.
Base
$126,000
Equity
$39,000
Bonus
$17,000
Signing
$8,000
Estimated total: $190,000
How Boston compares
Boston, MA
$126,000
Cost of living: 22% above average
National Average
$105,000
Boston is $21,000 above
AI Training Data Specialist salary by city
Salary by role in Boston
What you should know
Here is what the AI Training Data Specialist market actually looks like in Boston. Boston's job market is powered by world class universities, a thriving biotech corridor, and established finance and healthcare sectors. The Kendall Square area is one of the most concentrated biotech hubs globally. Tech salaries in Boston are competitive with West Coast markets, particularly for roles that intersect with life sciences, AI, and robotics. Expertise in dataset curation, annotation pipeline management, and data quality assurance for AI training drives compensation. Specialists who can design labeling taxonomies, manage distributed annotation teams, and implement quality control workflows are valued. Domain specific knowledge in areas like medical imaging, legal text, or multilingual content adds meaningful premiums.
Entry level data annotators start at $50,000 to $75,000. Mid level data specialists with pipeline management experience earn $90,000 to $120,000. Senior specialists reach $120,000 to $155,000. Directors of training data operations at AI companies can exceed $200,000 in total compensation. In Boston, those numbers run higher. The cost of living here is 22% above average, and employers adjust to compete.
Base salary is not the full picture. Bonuses of 10 to 15% are standard at AI companies. Equity grants at startups add 10 to 20% of total compensation. Signing bonuses of $5,000 to $15,000 are common. Benefits often include flexible schedules and remote work options. And on the tax side: massachusetts has a flat 5% income tax on most earnings, plus a 4% surtax on income above $1 million. There is no city income tax in Boston, keeping the total burden moderate. When someone quotes you $126,000, ask what the total package looks like. The gap between base and total comp is where real money hides.
On negotiation: Emphasize specialized credentials or advanced degrees. Boston employers, especially in biotech and finance, place a premium on educational pedigree and certifications. The range for AI Training Data Specialists in Boston runs from $90,000 to $173,000. That is not a narrow window. Where you land inside it depends almost entirely on whether you negotiate and how well you prepare.
Sources: SEC filings, H-1B LCA (DOL), BLS OES, 50+ job posting platforms. COL: BEA Regional Price Parities (2025). Data verified by Justin Bartak, Founder & Chief AI Officer. Last verified April 8, 2026. Full methodology
Considering a related role?
- A Compliance Officer in Boston earns $127,000 (1% more)
- The highest-paying role in Boston is Chief AI Officer at $390,000
Common questions.
AI Training Data Specialist salary in other cities
Other salaries in Boston
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