Data Analyst, Data Migration Senior Associate

Grant Thornton•Downers Grove, IL

5d•$72,000 - $95,000•Onsite

About The Position

Grant Thornton is seeking a Data Analyst, Data Migration Senior Associate to join their team in Downers Grove, IL. This role supports enterprise transformation initiatives, including ERP implementations and system modernization programs. The Data Analyst is responsible for the end-to-end migration lifecycle, ensuring business-critical data is accurate, complete, compliant, and ready for operational use. This position acts as a key liaison between business stakeholders, functional teams, technical resources, and data migration consultants.

Requirements

Bachelor’s degree in Information Systems, Computer Science, Data Analytics, Finance, Accounting, Business, or a related field.
Five or more years of experience as a Data Analyst, Business Analyst, or Data Migration Analyst, including at least three years supporting large-scale data migration projects.
Strong knowledge of data mapping, transformation, reconciliation, and validation methodologies.
Advanced SQL skills with the ability to analyze and manipulate large datasets.
Experience working with SAP S/4HANA, Oracle, Dayshape, Fieldglass, Microsoft Dynamics, or comparable platforms.
Proficiency with Excel, Power BI, Tableau, or comparable reporting tools.
Excellent analytical, problem-solving, and communication skills.

Nice To Haves

Experience supporting SAP S/4HANA Public Cloud data migration projects.
Knowledge of financial, billing, project accounting, customer, vendor, and master data structures.
Experience with ETL and data-integration tools.
Familiarity with Snowflake, Azure Data Factory, Informatica, SAP Migration Cockpit, or comparable technologies.
Understanding of data governance, controls, and audit requirements.
PMP, CBAP, SAP, or data-management certification preferred.

Responsibilities

Analyze source-system data to identify completeness, accuracy, consistency, duplication, and missing-value issues.
Define and execute data cleansing, remediation, and enrichment activities before migration.
Develop and maintain data-quality metrics and validation reports.
Develop and maintain source-to-target mapping specifications for master, transactional, and reference data.
Define business rules, transformation logic, and data-conversion requirements.
Partner with business subject matter experts to validate field definitions and update mapping specifications as business processes evolve.
Support migration activities for ERP, financial, operational, and reporting systems.
Review migration files and templates for load readiness.
Collaborate with technical teams to troubleshoot data-conversion issues and load failures.
Participate in mock loads, test migrations, cutover planning, and production deployments.
Validate migrated data through source-to-target reconciliation, System Integration Testing, User Acceptance Testing, and post-production review.
Investigate reconciliation discrepancies and identify the root causes of migration defects.
Develop reconciliation reports and controls to support business review and sign-off.
Coordinate migration activities across business owners, functional consultants, developers, project managers, and data migration consultants.
Facilitate data-discovery workshops and requirements-gathering sessions.
Communicate migration risks, issues, and dependencies to project leadership.
Recommend improvements to data-quality controls, governance practices, and migration procedures.