Tool Use / Function Calling Engineer.
New York.
$237,000
median salary, 28% above the national average
$177,000 to $310,000. Updated for 2026.
The numbers.
Everything you need to negotiate with confidence.
New York is 28% more expensive than the national average. For Tool Use / Function Calling Engineers, that shakes out to a median of $237,000, with the full range spanning $177,000 to $310,000. Compensation scales with the complexity and reliability of tool integration systems built. Know the range before you walk in.
Salary range
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How New York compares
New York, NY
$237,000
Cost of living: 28% above average
National Average
$185,000
New York is $52,000 above
What you should know
The Tool Use / Function Calling Engineer landscape in New York is not what most salary sites will tell you. New York City remains one of the world's largest and most diverse job markets, with unmatched density in finance, media, and technology. The city's tech sector has grown rapidly, rivaling the Bay Area for venture funding and startup activity. Remote work has reshaped demand slightly, but employers still pay premiums for in office presence in Manhattan. Compensation scales with the complexity and reliability of tool integration systems built. Engineers who can design robust function calling frameworks with error recovery and multi-step planning earn premiums. Experience with multiple LLM providers and enterprise API ecosystems drives salaries 10% to 18% above median.
Junior tool integration engineers start near $138,000 building basic function schemas. Mid-level engineers designing robust multi-tool orchestration earn $183,000 to $210,000. Principal engineers architecting enterprise tool-use platforms reach $242,000 to $290,000. In New York, those numbers run higher. The cost of living here is 28% above average, and employers adjust to compete.
Base salary is not the full picture. Equity at AI platform companies is a significant compensation component. Performance bonuses of 12% to 18% are standard, with some roles offering developer ecosystem growth bonuses tied to platform adoption metrics. And on the tax side: new York State income tax rates reach 10.9%, and New York City adds a local income tax up to 3.876%. Combined with federal taxes, your effective rate can be among the highest nationally. When someone quotes you $237,000, ask what the total package looks like. The gap between base and total comp is where real money hides.
On negotiation: Emphasize your willingness to work from the office in Manhattan. Many NYC employers pay 10 to 15% more for in person roles compared to remote positions. The range for Tool Use / Function Calling Engineers in New York runs from $177,000 to $310,000. That is not a narrow window. Where you land inside it depends almost entirely on whether you negotiate and how well you prepare.
Top industries in New York
Negotiating in New York
Emphasize your willingness to work from the office in Manhattan. Many NYC employers pay 10 to 15% more for in person roles compared to remote positions.