Athul Shaji

Senior Data Engineer with 4+ years of experience designing, building, and optimizing enterprise-scale ETL/ELT pipelines and data warehouse architectures using SQL Server, SSIS, Azure Data Factory, and Snowflake. Proven track record leading SQL-to-Snowflake data migrations and improving pipeline performance by up to 50%. Skilled in data modeling, data integration, data quality assurance, and business intelligence reporting, with hands-on experience mentoring junior engineers, managing stakeholder requirements, and delivering scalable analytics solutions across finance, energy, and workforce management domains.

Data Engineer at Guidehouse (2022-08 – Present)

Design, develop, and maintain ETL/ELT pipelines and database architecture to support enterprise reporting and analytics across multiple business units.

• Write and optimize SQL scripts and stored procedures for data manipulation, transformation, and validation, improving data accuracy and reporting reliability.
• Collaborate with cross-functional teams and business stakeholders to translate requirements into scalable data engineering solutions.
• Built the Workday-to-reporting ETL pipeline from the ground up and led junior developers on delivery, enabling consistent, self-serve resource reporting across departments.
• Re-architected error-prone manual data loads into automated, self-healing ETL packages, and shipped a Copilot/Cursor-accelerated POC portal that validated a faster path to production.
• Led the SQL Server-to-Snowflake migration end-to-end, redesigning data models to cut storage costs and unlock faster, scalable analytics on high-volume datasets.
• Owned backend ETL and business logic across 4-5 concurrent finance-sector clients, enabling rapid onboarding and reliable reporting without disrupting live operations.
• Architected a data warehouse from scratch for an energy-sector client, partnering with the ETL team to raise pipeline efficiency and deliver a reliable analytics foundation.

Bachelor of Technology (B.Tech) – Viswa Jyothi College of Engineering and Technology (2022)