LLM Fine-Tuning Engineer.
North Charleston.
$170,000
median salary, 8% below the national average
$129,000 to $221,000. Last updated April 2026.
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Data points to own the conversation.
North Charleston is 6% cheaper than the national average. For LLM Fine-Tuning Engineers, that shakes out to a median of $170,000, with the full range spanning $129,000 to $221,000. Deep knowledge of parameter efficient fine tuning methods like LoRA, QLoRA, and adapter layers 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 $153,000. Where you land depends on years of experience and what you bring to the table.
Entry (0-2 yrs)
$111,000
to $136,000
Mid (3-5 yrs)
$145,000
to $179,000
Senior (6-9 yrs)
$187,000
to $221,000
Lead (10+ yrs)
$213,000
to $264,000
Salary trend
+10% YoYTotal compensation
Base salary is not the full picture. Equity, bonus, and signing can add $80,000 to the total package.
Base
$170,000
Equity
$49,000
Bonus
$21,000
Signing
$10,000
Estimated total: $250,000
How North Charleston compares
North Charleston, SC
$170,000
Cost of living: 6% below average
National Average
$185,000
North Charleston is $15,000 below
LLM Fine-Tuning Engineer salary by city
Salary by role in North Charleston
What you should know
The LLM Fine-Tuning Engineer landscape in North Charleston is not what most salary sites will tell you. North Charleston is the industrial and manufacturing heart of the Lowcountry, home to Boeing's 787 Dreamliner assembly facility and the Charleston Naval Complex. The area has attracted significant defense, aerospace, and advanced manufacturing investment. Growth in logistics driven by the expanding port continues to drive employment. 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. In North Charleston, cost of living sits near the national average, so the numbers you see are roughly what you keep.
Base salary is not the full picture. 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. And on the tax side: south Carolina's top income tax rate is 6.4%. North Charleston has no city income tax. The moderate state rate is offset by affordable housing and strong employer demand. When someone quotes you $170,000, ask what the total package looks like. The gap between base and total comp is where real money hides.
On negotiation: Highlight aerospace manufacturing experience. Boeing and defense contractors in North Charleston pay nationally competitive rates for specialized engineering skills. The range for LLM Fine-Tuning Engineers in North Charleston runs from $129,000 to $221,000. 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 Robotics AI Engineer in North Charleston earns $169,000 (1% less)
- The highest-paying role in North Charleston is Distinguished Engineer at $301,000
Common questions.
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Other salaries in North Charleston
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