Data Migration Engineer
Karachi, Sindh, Pakistan
Full Time
Experienced
Responsibilities
- Inventory the legacy estate: schemas, objects, ETL jobs, Alteryx workflows, stored logic, reports and consumers.
- parse Alteryx workflows to extract embedded business logic.
- Build the dependency map
- Rebuild logic as tested Dataform models on silver/gold.
- Migrate historical data with row-count, sum and sample-record reconciliation;
- Document legacy defects discovered during migration and escalate for a business decision rather than silently correcting them.
- Produce the decommissioning plan for the legacy DWH and workflows, and the legacy migration record for handover.
Required skills and experience
- 6+ years in data warehouse migration and ETL modernisation.
- Expert SQL across at least two of SQL Server / Oracle / Teradata / PostgreSQL, including stored-procedure logic archaeology.
- Hands-on Alteryx Designer: reading, documenting and re-expressing workflow logic in SQL. This is the scarcest skill in the team — confirm availability early.
- Reconciliation technique: designing tolerance-based comparison of legacy and target outputs and defending results at acceptance.
- BigQuery target-side development (Dataform or dbt).
- The judgement to argue for retirement rather than migration where usage analysis supports it.
Certifications
- Preferred: Alteryx Designer Core/Advanced; Google Cloud Professional Data Engineer.
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