SEI - Data Migration Engineer (SWP) (Expanded Resources)

NTT DATA BUSINESS SOLUTIONS; Bengaluru; On-site; INR 1,500,000 - 2,100,000; Full time

Job summary

NTT DATA BUSINESS SOLUTIONS in Bengaluru, Karnataka, seeks a SEI - Data Migration Engineer to design and implement Python-based ETL pipelines, dbt transformations, and Airflow orchestration for a major migration from Informatica PowerCenter to a modern data stack.

The role requires deep expertise in converting Informatica workflows to Python, dbt, and Airflow, delivering production-quality outputs at enterprise scale in a Bangalore-based setup.

Qualifications

• 5+ years of Informatica PowerCenter experience (mappings, sessions, workflows, parameterization).
• 3+ years of hands-on dbt Core experience (model layering, macros, tests, incremental materializations).
• Multiple years of Airflow experience (DAG authoring, task dependencies, scheduling).
• 5+ years of Python experience, including production use of parallelism and batch data processing.
• 5+ years of SQL experience with complex joins, window functions, and large datasets.
• Experience with Oracle Data Pump or SQL Server BCP for high-volume data movement.

Responsibilities

• Assess Informatica workflows and translate into Python EL scripts and dbt models.
• Develop Python EL pipelines to land high-volume data into the target warehouse.
• Design and develop dbt transformation models with best practices including incremental materializations.
• Develop dbt-native tests and Python unit tests for data quality.
• Create Airflow DAGs to orchestrate Python EL and dbt scripts end-to-end.
• Contribute to GitLab CI/CD for dbt and Airflow code, including lint gates and automated tests.
• Perform peer code reviews and provide technical feedback to engineers.
• Troubleshoot performance issues and data discrepancies during SIT/UAT.
• Contribute to technical documentation and runbooks.

Skills

Informatica PowerCenter

dbt Core

Airflow

Python

SQL

Oracle Data Pump / Bulk Insert

Tools

SQLAlchemy

cx_Oracle

pyodbc

Oracle Data Pump

SQL Server BCP

Job description

We are currently seeking a SEI - Data Migration Engineer (SWP) (Expanded Resources) to join our team in Bangalore, Karnataka (IN-KA), India (IN).

Role Overview

• The Senior Data Migration Engineer serves as a hands-on technical contributor and delivery anchor, responsible for designing and implementing Python-based extract/load pipelines, dbt-based transformations, and Airflow-based orchestration for a large-scale migration from Informatica PowerCenter to a modern data stack.
• This role requires deep expertise in converting complex Informatica workflows into Python, dbt, and Airflow, and the ability to deliver production-quality, functionally equivalent output at enterprise scale.

Key Responsibilities

• Assess complex Informatica workflows including sessions, mappings, and parameterizations and translate them into equivalent Python EL scripts and dbt transformation models.
• Develop and maintain Python EL pipelines to land high-volume data, including billion-row tables, into the target warehouse using SQLAlchemy, cx_Oracle, pyodbc, and bulk export tools such as Oracle Data Pump and SQL Server BCP.
• Design and develop dbt transformation models based on Informatica mapping logic, incorporating dbt best practices including model layering, macros, incremental strategies, and snapshot patterns.
• Develop dbt-native tests as well as custom Python unit tests to validate transformation correctness and data quality.
• Develop Airflow DAGs to orchestrate Python EL and dbt scripts end-to-end, producing output that is functionally equivalent to the source Informatica workflows.
• Contribute to GitLab CI/CD pipeline for dbt and Airflow code, including lint gates, automated testing, and deployment to shared NAS.
• Perform peer code reviews and provide constructive technical feedback to fellow engineers.
• Troubleshoot performance issues and data discrepancies during SIT and UAT, including row-count reconciliation between source Oracle/SQL Server systems and the target warehouse.
• Contribute to technical documentation, runbooks, and handover materials.

Required Skills Experience

• 5+ years of Informatica PowerCenter experience - mappings, sessions, workflows, and parameterization
• 3+ years of hands‑on dbt Core experience - model layering, macros, tests, incremental materializations
• Any number of years of Airflow experience - DAG authoring, task dependencies, and incorporation with scheduling tool
• 5+ years of Python experience, including production use of parallelism and batch data processing
• 5+ years of SQL experience - complex joins, window functions, aggregations across large datasets
• Experience with Oracle Data Pump (expdp/impdp) or SQL Server BCP / BULK INSERT for high-volume data movement

Preferred

• Experience with SQLAlchemy, cx_Oracle, or pyodbc for Python-based database connectivity
• Experience mentoring junior and mid-level engineers in offshore delivery models.