Data jobs in O'fallon
11 live roles · 3 companies · 11 with stated pay
11 data roles in O'fallon are open right now across 3 companies. Mastercard alone accounts for 8 of them, so this list leans heavily on one employer. 8 were posted in the last 30 days.
More roles here state pay than the 49% that do site-wide.
Every posting here is mid-level or above, and 55% are senior or lead. 1 is advertised as remote; 10 do not specify where the work happens.
Market snapshot
- Hiring
- Mastercard (8)·Bah (2)·CACI
- Levels
-
- Director1
- Senior5
- Mid5
- Remote
- 1 of 11 (9%)
- Stated pay
- 11 of 11 · $92,000–$225,000
- Posted
- 8 in the last 30 days
- Verified
- Oct 24, 2026
this job's paywhere most pay sits here, $92,000–$225,000scale $50,000–$320,000
Data Modeler CACI · Remote · US · Data Architecture & Governance $90,300–$189,600 4d ago Data Scientist Bah · O'Fallon · Data Science $99,000–$225,000 8d ago Senior AI Engineer, Big Data & AI Solutions Mastercard · O'Fallon · Data Engineering $115,000–$184,000 8d ago 
by the team behind dataroles
Data work from LinkedIn, X, Reddit and Upwork, in one list.
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3 companies hiring in O'fallon
- Mastercard8 roles
- Bah2 roles
- CACI1 role