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Jesus Ustariz

@jesusustariz1

Staff Platform Database Engineer at TeraCrunch who automated Snowflake access provisioning and cut manual setup from three hours to under nine minutes.

Colombia

Message

At TeraCrunch, I redesigned Snowflake role-based access across 14 functional roles and automated analyst provisioning with a Python CLI and Snowflake REST APIs. I also managed platform resources as code with Terraform, reducing manual provisioning from three hours per request to under nine minutes.

Previously, I engineered Snowflake and Python data platforms for digital health at Senior, including pipelines processing 18,000 member records nightly and data models for clinical progress reporting. At Digital Silk, SDLC, and TMA Solutions, I worked on data ingestion, analytics, and database systems for eCommerce, client platforms, telecom, banking, and IoT.

Experience

Work history, roles, and key accomplishments

Staff Platform Database Engineer

TeraCrunch

Oct 2025 - Jul 2026 (9 months)

Redesigned Snowflake RBAC framework across 14 functional roles and implemented PII masking policies. Automated access provisioning with Python CLI and configured Terraform modules, cutting manual provisioning time from 3 hours to under 9 minutes.

Snowflake RBAC Python Terraform Datadog SQL REST APIs PII Masking Data Masking Automatización De Accesos Audit Logging Infrastructure as Code

Senior Platform Database Engineer

Senior

Dec 2022 - Jul 2025 (2 years 7 months)

Engineered Snowflake data warehouse architecture for cardiometabolic health metrics with fine-grained RBAC. Developed Python ETL pipelines with Airflow, integrated OAuth/OIDC SSO, and scaled multi-cluster warehouses for ML batch scoring, cutting monthly credit spend by 34%.

Snowflake Python Airflow AWS SQS Terraform OAuth OIDC Okta DBT GitHub Actions CI CD RBAC HIPAA compliance Data Masking Row Access Policies ETL Data Warehouse Batch Scoring

Senior Data Platform Engineer

Digital Silk

Mar 2021 - Oct 2022 (1 year 7 months)

Built Python-based data ingestion service for eCommerce order events and implemented Snowflake as central analytics store. Designed RBAC permission model for multi-tenant platform and created FastAPI REST endpoints with Redis caching, reducing response time to 180ms.

Python PostgreSQL Snowflake Fivetran SQL RBAC fastAPI Redis Airflow Docker AWS ECS Pytest Great Expectations Data Ingestion ETL REST APIs Tableau

Data Platform Engineer

SDLC

Apr 2017 - Jan 2021 (3 years 9 months)

Developed Python data sync service connecting Magento to Odoo ERP and designed PostgreSQL schema for PropTech CRM. Integrated AWS-hosted reporting pipeline into Redshift and automated environment provisioning with Ansible, reducing setup time from 6 hours to 40 minutes.

Python PostgreSQL Magento Odoo AWS Redshift Ansible Nginx EC2 Flask OAuth Data Synchronization ETL CRM PropTech Web3

Data Engineer

TMA Solutions

Jun 2015 - Feb 2017 (1 year 8 months)

Built SQL stored procedures and scheduled tasks for telecom network management database. Developed Python data extraction module for banking analytics and configured Jenkins CI/CD jobs for SQL migrations. Designed MySQL schema for IoT smart-manufacturing solution.