AI Frontend Engineer.

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If you are interviewing for AI Frontend Engineer roles in St. Louis, here is what you are walking into. St. Louis offers one of the most affordable major metro areas in the country, with a strong base in healthcare, financial services, and manufacturing. The region's anchor employers include Boeing, Centene, and Washington University's medical campus. A growing biotech and plant sciences corridor centered on the Cortex Innovation District is attracting new investment and talent. Compensation scales with expertise in building interactive AI user experiences, including streaming response interfaces, real-time collaboration with AI agents, and complex visualization of model outputs. Engineers who specialize in AI-native UX patterns like conversational interfaces and generative content editing earn 10 to 15% premiums over traditional frontend roles.

Frontend developers earning $90,000 to $120,000 transition to AI frontend roles at $115,000 to $195,000 by building streaming UI and AI interaction expertise. Senior AI frontend engineers earn $160,000 to $220,000 before advancing to Lead AI Frontend or AI UX Architect positions at $190,000 to $260,000. In St. Louis, 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. Total compensation reaches $175,000 to $320,000 with equity, bonuses of 10 to 20% of base, and design tool budgets. Companies building consumer AI products tend to offer stronger total packages than enterprise AI companies for frontend-focused roles. And on the tax side: missouri's top income tax rate is about 4.8%, and St. Louis City adds a 1% earnings tax. The low base cost of living means your after tax salary still stretches further than in most metros. When someone quotes you $135,000, 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 in person at Cortex or the BJC campus. St. Louis employers offer higher packages for candidates who commit to the local innovation hubs. The range for AI Frontend Engineers in St. Louis runs from $104,000 to $176,000. That is not a narrow window. Where you land inside it depends almost entirely on whether you negotiate and how well you prepare.

Negotiating in St. Louis

Emphasize your willingness to work in person at Cortex or the BJC campus. St. Louis employers offer higher packages for candidates who commit to the local innovation hubs.

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