AI Threat Detection Engineer.
Arlington.
$254,000
median salary, 21% above the national average
$198,000 to $330,000. Last updated April 2026.
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Data points to own the conversation.
AI Threat Detection Engineer pay in Arlington ranges from $198,000 to $330,000 in 2026. The median is $254,000, 21% 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 $229,000. Where you land depends on years of experience and what you bring to the table.
Entry (0-2 yrs)
$165,000
to $203,000
Mid (3-5 yrs)
$216,000
to $267,000
Senior (6-9 yrs)
$279,000
to $330,000
Lead (10+ yrs)
$318,000
to $394,000
Salary trend
+10% YoYTotal compensation
Base salary is not the full picture. Equity, bonus, and signing can add $116,000 to the total package.
Base
$254,000
Equity
$71,000
Bonus
$30,000
Signing
$15,000
Estimated total: $370,000
How Arlington compares
Arlington, VA
$254,000
Cost of living: 22% above average
National Average
$210,000
Arlington is $44,000 above
AI Threat Detection Engineer salary by city
Salary by role in Arlington
What you should know
Before you negotiate a AI Threat Detection Engineer offer in Arlington, understand the terrain. 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. The gap between theoretical knowledge and production deployment experience is the single largest salary differentiator. AI Threat Detection Engineers who can optimize inference costs, reduce model latency, and handle scale reliably earn significantly more. Published research or open source contributions to widely adopted frameworks create additional leverage in negotiations.
Entry-level AI Threat Detection Engineers start near $164,000. Mid-career professionals with three to five years of experience reach $210,000 to $273,000. Senior-level roles command $269,000 to $326,000. Management transitions to director-level positions offer $347,000 and above. 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 top-tier companies adds 30% to 60% above base salary. Annual bonuses of 15% to 25% are standard. Signing bonuses of $25,000 to $75,000 are common when changing roles. Refresher equity grants vest annually. Relocation packages and executive benefits like financial planning are typical. 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 $254,000, 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 AI Threat Detection Engineers in Arlington runs from $198,000 to $330,000. 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
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Common questions.
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