ETL Test Engineer
Infosys Bengaluru East, Karnataka, India
Job Description
"Unlock the secrets of ETL Test Engineering at Infosys and embark on a journey to become a master of data validation and quality."
As an ETL Test Engineer at Infosys, you will play a crucial role in ensuring the accuracy and reliability of data across various systems and applications. Your primary skills in Data Services Testing and ETL - Others will be put to the test as you design, develop, validate, and support complex data workflows.
A typical day in the life of an ETL Test Engineer at Infosys involves gathering requirements, translating client needs into system requirements, and collaborating with Technology Leads and Project Managers to estimate project work requirements.
Why you should learn this:
The demand for ETL Test Engineers is on the rise, driven by the increasing need for data quality and validation in various industries.
Expected Salary: $80,000 - $120,000 per annum, depending on experience and location.
How it works:
- Step 1: Gather client requirements and translate them into system requirements.
- Step 2: Collaborate with Technology Leads and Project Managers to estimate project work requirements.
- Step 3: Design, develop, validate, and support complex data workflows.
Core Concepts to Master
Data Validation Techniques
ETL Test Engineers use various data validation techniques, such as data profiling, data quality checks, and data reconciliation, to ensure the accuracy and reliability of data.
ETL Testing Methodologies
ETL Test Engineers employ various testing methodologies, such as black box testing, white box testing, and gray box testing, to identify defects in ETL processes.
Data Quality Metrics
ETL Test Engineers use various data quality metrics, such as data completeness, data accuracy, and data consistency, to measure the quality of data.
Interview Questions (Beginner)
- What are the different types of data validation techniques used in ETL testing?
- How do you ensure data quality in ETL processes?
- What are the common defects found in ETL processes?
Job Overview
Advance Questions
- • Design an ETL testing strategy for a complex data workflow.
- • Explain the concept of data reconciliation and its importance in ETL testing.
- • How do you measure the effectiveness of ETL testing?