LLM Operations Engineer.
Arlington.
$182,000
median salary, 17% above the national average
$141,000 to $225,000. Last updated April 2026.
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Data points to own the conversation.
LLM Operations Engineer pay in Arlington ranges from $141,000 to $225,000 in 2026. The median is $182,000, 17% above the national average. Arlington is the heart of the DC defense and intelligence corridor, home to the Pentagon, DARPA, and hundreds of government contractors. Every dollar in that range is negotiable if you come prepared.
Salary range
Where do you fall?
Salary by experience
The gap between entry and lead level is typically $164,000. Where you land depends on years of experience and what you bring to the table.
Entry (0-2 yrs)
$118,000
to $146,000
Mid (3-5 yrs)
$155,000
to $191,000
Senior (6-9 yrs)
$200,000
to $237,000
Lead (10+ yrs)
$228,000
to $282,000
Salary trend
+8% YoYTotal compensation
Base salary is not the full picture. Equity, bonus, and signing can add $76,000 to the total package.
Base
$182,000
Equity
$46,000
Bonus
$19,000
Signing
$11,000
Estimated total: $258,000
How Arlington compares
Arlington, VA
$182,000
Cost of living: 22% above average
National Average
$155,000
Arlington is $27,000 above
LLM Operations Engineer salary by city
Salary by role in Arlington
What you should know
If you are interviewing for LLM Operations Engineer roles in Arlington, here is what you are walking into. Arlington is the heart of the DC defense and intelligence corridor, home to the Pentagon, DARPA, and hundreds of government contractors. The concentration of cleared tech jobs makes it one of the highest-paying metros for cybersecurity and cloud engineering. Amazon's HQ2 has brought a wave of commercial tech hiring. Compensation scales with expertise in deploying, monitoring, and optimizing large language models in production. Engineers who can manage inference costs, implement model routing, and maintain quality at scale earn premiums. Experience with quantization, batching strategies, and multi-model serving infrastructure is particularly valuable.
Junior LLM ops engineers start at $105,000 to $125,000 managing basic model deployments. Mid-level engineers optimizing inference infrastructure reach $145,000 to $170,000. Senior engineers designing multi-model serving platforms earn $180,000 to $220,000. Leading LLM infrastructure at major AI companies pushes total comp above $280,000. In Arlington, 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. Equity at AI infrastructure companies adds $25,000 to $80,000 annually. Bonuses of 10% to 15% are standard. Cloud compute optimization bonuses tied to cost reduction are an emerging compensation structure at some companies. And on the tax side: virginia's top income tax rate is 5.75%. Arlington has no additional city income tax. Proximity to DC means many residents compare against DC and Maryland tax rates. When someone quotes you $182,000, ask what the total package looks like. The gap between base and total comp is where real money hides.
On negotiation: A security clearance is your strongest asset. Cleared professionals in Arlington earn 20 to 30% premiums over non-cleared equivalents. The range for LLM Operations Engineers in Arlington runs from $141,000 to $225,000. 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 AI Quality Assurance Engineer in Arlington earns $183,000 (1% more)
- The highest-paying role in Arlington is Distinguished Engineer at $386,000
Common questions.
LLM Operations Engineer salary in other cities
Other salaries in Arlington
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