AI / ML Engineer Salary in Missouri (2026)

Worth knowing: Oracle Health (legacy Cerner, ~12K KC-area employees post-2022 $28B Oracle acquisition) is the structural depth feature most national AI/ML-career surveys understate for MO. Oracle Health operates the country's largest single-state healthcare-software AI/ML organization — clinical decision support ML, EHR predictive analytics, medical imaging AI, and revenue cycle ML all at scale across Oracle Health's ~25% US hospital EHR market share. Senior Oracle Health ML engineers clear $155-275K TC. Washington University in St. Louis School of Medicine ($706M+ FY2023 NIH funding — top-5 nationally) operates substantial NIH-funded computational biology + medical AI research. Centene HQ Clayton (Fortune 25, ~$165B revenue, ~25K MO employees) operates the country's largest single-state Medicaid managed care AI/ML organization. Edward Jones HQ Maryland Heights (~20K employees, ~$15B revenue) operates substantial investor analytics ML supporting the 15K+ branch network. Boeing Defense Space & Security STL (~14K MO employees) drives cleared aerospace AI/ML at TS/SCI clearance scales. The Cortex Innovation Community St. Louis (post-2002 redevelopment of CWE biotech district, ~$2.4B cumulative investment, ~300 startups) drives early-stage AI/ML startup demand. MO's 4.7% top rate plus the STL/KC 1% city earnings tax creates county-residency arbitrage: Edward Jones Maryland Heights employees + Oracle Health North Kansas City employees pay only 4.7% at the margin; downtown STL employers pay 5.7%.