We are looking for a hands-on Data Architect / Data Engineering Consultant with strong expertise in Python, PySpark, Spark optimization, distributed data processing, Hive/Impala, SQL, and production ETL troubleshooting .
The consultant will be responsible for understanding end-to-end data flows, developing and troubleshooting data pipelines, optimizing distributed processing workloads, performing SQL-based data reconciliation, and supporting production data platforms.
Required Qualifications
• 12-15 years in data architecture, data engineering, or enterprise architecture.
• 7 or more Hands-on development background.
• Experience with Databricks and Snowflake. And/or-
• Strong expertise in data warehousing, Lakehouse architecture, ETL/ELT, data modelling, and event-driven integration.
• Experience in regulated financial services.
Key Responsibilities
• Design, develop, enhance, and troubleshoot ETL/ELT data pipelines .
• Develop and maintain data processing solutions using Python and PySpark .
• Work extensively with Apache Spark , including performance tuning and optimization.
• Analyze Spark jobs to identify performance bottlenecks related to partitions, shuffles, joins, data skew, caching, serialization, and resource utilization .
• Work with distributed data processing concepts and large-volume datasets.
• Develop complex SQL queries for data transformation, validation, reconciliation, and troubleshooting .
• Perform source-to-target reconciliation and investigate data discrepancies.
• Work with Hive and Impala for querying and processing large datasets.
• Troubleshoot production ETL failures, data quality issues, performance problems, and batch-processing failures.
• Perform root-cause analysis and implement permanent fixes for recurring production issues.
• Understand and troubleshoot end-to-end data flows , from source systems through ETL processing to downstream consumers.
• Work with Linux environments, shell commands, batch processing, and job scheduling.
• Collaborate with engineering, application, and business teams to resolve complex data issues.
• Participate in technical design discussions and provide recommendations for scalable and maintainable data solutions.
• Document technical designs, data flows, troubleshooting procedures, and production resolutions