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NTT DATA Services

Data Engineer Sr. Consultant

NTT DATA Services Bangalore, Karnataka, India

IT Services and IT Consulting · 10,001+ employees

Oct 14
data-engineer Senior (5-10 yrs) Full-time India
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About the role

Design and maintain robust Python-based ETL/ELT pipelines and scalable data models within Snowflake. Develop automated document generation engines and integrate custom REST APIs to ensure efficient data workflows.

What they look for

Python Data Engineering ETL/ELT Pipelines Snowflake SQL Data Modeling Pandas NumPy Data Visualization Matplotlib Seaborn Plotly ReportLab REST APIs Workflow Orchestration Automation

Requirements

Requires a bachelor's degree in a technical field and 5-7 years of professional experience in Python development and data engineering. Candidates must possess strong SQL skills and hands-on experience with cloud data warehouses and data visualization libraries.

Full description

Python Data Engineer & Automation Developer (5–7 years of experience)

Python Development & Data Engineering

  • ETL/ELT Pipeline Development: Design, develop, and maintain robust, reusable Python-based ETL/ELT pipelines to extract, transform, and load data from cloud data warehouses, specifically Snowflake.
  • Data Modeling & Reconciliation: Build and optimize scalable data models, handling complex business logic, historical data snapshotting, and rigorous data reconciliation.
  • Programmatic Charting & Visualization: Design and generate complex financial charts (stacked bar, line, area, and matrix heatmaps) programmatically using Python visualization libraries to embed directly into automated PDF reports.
  • Automated Document Generation: Develop programmatic document generation engines (e.g., PDF/report generation using ReportLab, WeasyPrint, or FPDF2) and automate secure distribution workflows.
  • General Automation & Scripting: Write clean, modular, and well-documented Python code to support diverse backend engineering, automation, and scripting tasks.
  • API Integration: Design, build, and integrate custom REST APIs and connectors to sync data across disparate enterprise systems.
  • Workflow Orchestration: Automate, schedule, and monitor end-to-end data workflows and system processes to ensure high availability and reliability.
  • Performance Optimization: Troubleshoot, debug, and optimize database queries and Python scripts for maximum performance.

Required Qualifications

  • Bachelor’s degree in Computer Science, Information Systems, Software Engineering, Data Analytics, or a related field.
  • 5–7 years of professional experience in Python development, data engineering, or backend software automation.
  • 3+ years of hands-on experience writing complex SQL queries and working with cloud data warehouses (Snowflake preferred).
  • Strong proficiency in Python data manipulation libraries (Pandas, NumPy) and database connectors (Snowflake Connector for Python).
  • Strong hands-on experience with Python data visualization libraries such as Matplotlib, Seaborn, Plotly (static export), or ReportLab Drawing/Charts.
  • Proven experience with programmatic document generation, HTML/CSS templating (e.g., WeasyPrint), or automated reporting solutions.
  • Solid understanding of data modeling, ETL/ELT processes, API integrations, and software design patterns.
  • Strong analytical, debugging, and problem-solving skills with excellent attention to detail.

Preferred Qualifications

  • Experience working in Banking, Financial Services, Capital Markets, or other highly regulated environments.
  • Experience with cloud orchestration tools (AWS Lambda, or Snowflake Tasks).
  • Familiarity with CI/CD pipelines, version control (Git), and agile development methodologies.

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