LLM Fine-Tuning Engineer Salary.
Across 81 U.S. cities.
$185,000
national median salary
$140,000 to $240,000. Last updated July 2026.
Highest Paying
$248,000
San Jose, CA
Best Purchasing Power
$193,000
Boston, MA
Lowest Paying
$139,000
Charleston, WV
Salary data sourced from Bureau of Labor Statistics Occupational Employment and Wage Statistics, H-1B Labor Condition Applications (DOL), state pay-transparency job postings, and community submissions. Ranges reflect 25th to 75th percentile for full-time positions. Cost-of-living adjustments use Bureau of Economic Analysis Regional Price Parities (2025 index). Last updated July 2026. Baseline derived from BLS SOC 15-2051. Full methodology.
The average LLM Fine-Tuning Engineer salary in the United States is $185,000 in 2026, with the full range spanning $140,000 at the 25th percentile to $240,000 at the 75th. San Jose pays the most at $248,000, while Boston offers the best purchasing power after cost-of-living adjustments. Deep knowledge of parameter efficient fine tuning methods like LoRA, QLoRA, and adapter layers drives compensation.
LLM Fine-Tuning Engineer salary by city.
Skills that increase LLM Fine-Tuning Engineer pay.
The skills below command measurable salary premiums for LLM Fine-Tuning Engineers based on job posting data. Learning the top skill here could add $25,900 to your annual compensation.
≈ +$25,900 per year
≈ +$24,050 per year
≈ +$22,200 per year
≈ +$20,350 per year
≈ +$18,500 per year
≈ +$18,500 per year
≈ +$18,500 per year
≈ +$16,650 per year
What you should know.
Deep knowledge of parameter efficient fine tuning methods like LoRA, QLoRA, and adapter layers drives compensation. Engineers who can optimize training runs for cost and quality while managing GPU infrastructure are highly sought. Experience with evaluation frameworks, dataset curation, and domain specific model adaptation adds significant salary premiums.
Junior fine tuning engineers start at $120,000 to $150,000. Mid level engineers with production deployment experience earn $165,000 to $210,000. Senior engineers reach $210,000 to $270,000. Principal engineers at leading AI companies can exceed $350,000 in total compensation with equity.
Equity at AI startups typically adds 20 to 40% of total compensation. Performance bonuses of 15 to 25% are standard. Signing bonuses of $25,000 to $75,000 are common. Benefits frequently include cloud compute credits and conference attendance budgets.
Total compensation breakdown.
Salary by company size
Remote salary adjustment
Remote LLM Fine-Tuning Engineers typically earn $172,000 (7% less than on-site). This reflects location-adjusted pay policies at companies using geographic salary bands. Some companies pay flat national rates regardless of location.
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Common questions about LLM Fine-Tuning Engineer pay.
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