Data Solution Architect (Freelance)

Expert level SQL query writing and optimization Advanced performance tuning and indexing strategies Schema design and refactoring legacy databases Normalization/denormalization and advanced database features Defining optimal logic placement (DB vs. BI vs. ETL) Designing scalable architecture for complex analytics Understanding core business metrics and mapping relationships Hands-on experience with Sisense or comparable enterprise BI tools Familiarity with AWS RDS, Redshift, Glue, Lambda, S3, IAM Experience stabilizing legacy data warehouses and refactoring models

Analyze current data structures and reporting logic Identify performance bottlenecks and architectural weaknesses Refactor and optimize existing solution by applying database-level improvements Adjust Sisense models and strategically relocate logic