Senior Data Analyst

Senior Data Analyst

Position Summary

The Senior Data Analyst is the person the business turns to when the numbers do not look right. This role combines deep, hands-on data investigation with formal accountability as the designated Data Steward for assigned business domains. When a stakeholder reports a data issue, this role owns the investigation end to end: tracing the metric back through the semantic layer, transformations, and pipelines to the source system, isolating exactly where the data broke, and driving it to resolution with the responsible team. Beyond individual issues, the Senior Data Analyst is accountable for the definitions, quality rules, and certification of the data that enterprise decisions depend on.

Location: St. Louis, MO or Newton, MA (hybrid)

Key Responsibilities

Data Investigation & Root Cause Analysis

· Own end-to-end investigation of reported data issues, from initial stakeholder report through root cause identification and resolution. · Trace metrics backward through the semantic layer, transformation logic, and pipelines to the originating source system to isolate where a discrepancy is introduced. · Reconcile figures across systems and identify whether a variance stems from a source data problem, a transformation defect, a definitional difference, or expected business behavior. · Read and interpret existing SQL transformation logic to determine whether it reflects the intended business rule. · Profile source data to assess structure,…