Salary Data
AI Engineer Salary in St. Louis
$158,000
median salary, 10% below the national average
According to Orbit's 2026 salary analysis, the average AI Engineer salary in St. Louis is $158,000. Salaries range from $117,000 (25th percentile) to $207,000 (75th percentile), adjusted for St. Louis's cost of living.
Salary range
How St. Louis compares
St. Louis, MO
$158,000
Cost of living: 10% below average
National Average
$175,000
St. Louis is $17,000 below
AI Engineer job market in St. Louis
St. Louis market overview
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.
What drives AI Engineer salaries
Hands on experience building AI powered products, familiarity with foundation models (GPT, Claude, Gemini), and ability to integrate AI into production systems are the biggest salary drivers. Engineers who understand both model fine tuning and application architecture are rare and highly compensated. Industry domain (health, finance, defense) adds further premiums.
Beyond base salary
Total compensation
Equity at AI startups and labs can represent 30 to 50% of total compensation. Bonuses of 15 to 25% are typical. Signing bonuses of $30,000 to $100,000 are common at well funded companies. Benefits often include compute credits, research time, and conference travel budgets.
Tax considerations in St. Louis
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.
Career progression
Junior AI engineers start at $120,000 to $150,000, reaching mid level at $155,000 to $200,000 in two to three years. Senior AI engineers earn $200,000 to $280,000. Staff AI engineers and technical leads at top labs can exceed $400,000 in total compensation. Moving into AI architecture or CTO roles extends the ceiling further.
Top industries in St. Louis
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.