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Lucas ALA
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Lucas A

@lucasa1

Senior Data Engineer at NexusLeap, optimizing AWS and Snowflake pipelines processing 3 TB daily and building production RAG features.

United States
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At NexusLeap, I architect and manage AWS and Snowflake workflows processing approximately 3 TB of data daily across 16 source systems and 35 active pipelines. I improved pipeline runtimes and batch processing windows by 40% through query tuning, processing optimization, and partition pruning.

I delivered approximately $40,000 in annual cloud cost savings through compute right-sizing, S3 lifecycle tiering, and eliminating redundant processing. I also maintain Kafka streaming pipelines and production RAG and semantic-search features using LangChain, OpenAI APIs, and vector databases.

Previously, I developed Python-based ETL workflows at IntelliTide and improved query and reporting latency by 30% through PostgreSQL indexing and query-plan optimization. At ALIS Software, I developed SQL queries and database components and integrated external APIs with application databases.

Experience

Work history, roles, and key accomplishments

IN

Data Engineer

IntelliTide

Sep 2019 - Jul 2023 (3 years 10 months)

Developed and maintained Python-based ETL workflows for multi-million-record datasets supporting enterprise reporting and data processing requirements. Improved database query performance and reduced query and reporting latency by 30% through PostgreSQL indexing and query execution-plan optimization.

AS

Junior Data Engineer / Database Developer

ALIS Software

Mar 2017 - Aug 2019 (2 years 5 months)

Developed SQL queries and database components supporting enterprise application data requirements and business workflows. Created and maintained relational database structures, tables, and indexes using PostgreSQL and MySQL.

Education

Degrees, certifications, and relevant coursework

Amberton University logoAU

Amberton University

Master of Science, Data Science

Master of Science in Data Science from Amberton University.

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