Senior system engineer
Confirmed on the employer's own hiring board on Oct 17, 2026. First seen by Alion on Sep 30, 2026. Infosys scores A on the Alion truth index.
Responsibilities
Strong experience in ETL Testing and Data Warehouse Testing.
Proficiency in SQL with the ability to write complex queries, joins, stored procedures, and data validation scripts.
Hands-on experience with ETL tools such as Informatica, Talend, DataStage, SSIS, Ab Initio, or similar.
Strong understanding of Data Warehousing Concepts, including Fact Tables, Dimension Tables, Star Schema, and Snowflake Schema.
Experience in validating source-to-target mappings.
Knowledge of data migration and data reconciliation techniques.
Experience working with relational databases such as Oracle, SQL Server, MySQL, PostgreSQL, or Teradata.
Strong understanding of SDLC, STLC, and Agile methodologies.
Experience with defect management tools like JIRA.
Preferred Skills
Experience with Cloud Data Platforms such as AWS Redshift, Snowflake, Azure Synapse, or Google BigQuery.
Exposure to Big Data Testing using Hadoop, Spark, or Databricks.
Knowledge of ETL automation tools and scripting using Python or Shell scripting.
Experience with data quality tools such as Informatica DQ or Great Expectations.
Familiarity with BI tools such as Power BI, Tableau, or Qlik.
Understanding of CI/CD pipelines and DevOps practices.
Technical requirements
- Primary skills:Technology->Data Services Testing->Data Warehouse Testing,Technology->ETL & Data Quality->ETL - Others
Preferred skills
Technology->ETL & Data Quality->ETL - Others,Technology->Data Services Testing->Data Warehouse Testing
Education
MCA,MSc,MTech,Bachelor of Engineering,BCA,BSc,BTech