Sameer Mesiah
Data Engineer @Aviva
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WORK HISTORY
Data Engineer @Aviva
London, GB
As a Data Engineer at Aviva, I work on building scalable, cloud-native data systems that support underwriting, pricing, and business intelligence across the Commercial Lines division.Partially automated the underwriting process for Mid-Market clients by integrating Snowflake (AWS) and Guidewire, reducing turnaround time from days to under 24 hours—contributing to a projected £60M in incremental annual revenue over 2-3 years.Re-engineered legacy ETL pipelines into modular dbt models and migrated orchestration to Airflow, improving observability, logging, and reliability.Delivered clean, structured data pipelines for Pricing and BI teams, enhancing premium models and risk analysis.Supported the broader migration from Oracle Exadata to Snowflake by taking charge of critical modules and ensuring smooth handover.I focus on building robust, maintainable pipelines that drive business impact through data quality, automation, and engineering best practices.
EDUCATION
Institute of Business Administration
Bachelor's degree, Accounting and Finance
ABOUT SAMEER MESIAH
Data Engineer with 3 years of experience delivering data solutions across insurance, music, and consulting sectors. I build cloud-native pipelines using Python, SQL, dbt, Airflow, and Snowflake to support analytics, ML, and compliance. My work has improved underwriting speed, enhanced data quality, and streamlined revenue tracking. Passionate about automation, clean architecture, and turning complex data into business value.
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