Sr. Data Engineer

Kindly extend your support for this role, in person interview must need so do not share the candidate who is not interested.

• Job Title: Sr. Data Engineer (Snowflake Migration) – 12+ years exp must
• Location: Westlake, TX – 5 Days onsite Role
• Full Time Role with Mphasis

Job Summary:

• We are looking for an experienced Lead Data Engineer to support a large-scale Data Warehouse modernization and migration initiative. The ideal candidate will analyze existing ETL processes built on SSIS, Informatica, SQL Server Stored Procedures, and Oracle PL/SQL packages, understand the underlying business logic, and migrate them to Snowflake SQL and Python-based data processing frameworks.
• This role requires strong expertise in Snowflake, Python, AWS, Control-M, GitHub, Jenkins, SSIS, Informatica, Oracle PL/SQL, SQL Server.. In addition to migration activities, the candidate will be responsible for data validation, report adoption support, and decommissioning legacy ETL processes.
• Key Responsibilities:
• Analyze and understand existing ETL and database processes built using:
• SSIS
• Informatica
• SQL Server Stored Procedures
• Oracle PL/SQL Packages
• Convert and optimize existing business logic into Snowflake SQL.
• Develop and maintain Python-based data ingestion and orchestration processes.
• Build scalable data pipelines and batch processing solutions.
• Configure, schedule, monitor, and troubleshoot jobs using Control-M.
• Work with AWS services including EC2, S3, AWS Batch, Secrets Manager, and CloudWatch/Log Monitoring.
• Perform Snowflake performance tuning and query optimization.
• Execute data validation and reconciliation between legacy systems and Snowflake.
• Partner with Reporting and Analytics teams to validate reports and ensure successful adoption of migrated data.
• Support UAT, parallel runs, and production cutovers.
• Decommission legacy ETL jobs, scheduling processes, and obsolete data platforms after successful migration.
• Manage source code using GitHub and support CI/CD deployments through Jenkins.
• Collaborate with business and technical teams throughout the migration lifecycle.
• Required Skills:
• Must Have:
• 10+ years of Data Engineering, ETL, and Data Warehouse experience.
• Strong Snowflake SQL development and performance tuning experience.
• Experience migrating ETL processes from SSIS, Informatica, SQL Server, or Oracle environments.
• Strong Python development skills.
• Hands-on experience with Control-M scheduling and monitoring.
• AWS experience with:
• EC2
• S3
• AWS Batch
• Secrets Manager
• CloudWatch
• GitHub and Jenkins CI/CD experience.
• Experience with data comparison, reconciliation, and migration validation.