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Sergio Murillo

@sergiomurillo

Data platform architect at iRhythm Technologies who cut infrastructure costs 40% by leading a Snowflake and Apache Iceberg lakehouse migration.

United States

Message

At iRhythm Technologies, I led the migration to a modern lakehouse with Fivetran, Apache Iceberg, Snowflake, and dbt, retiring a legacy Redshift warehouse and reducing data platform infrastructure costs by 40%.

I built iRhythm's enterprise data lake and later managed its data systems engineering team of 13. As Staff Data Services Architect, I provision platform infrastructure with Terraform and built an AI-powered search and discovery platform over the data lake using Glean.

Earlier, I managed database and DBA teams at Zuora and Rackspace, and worked across MySQL, Postgres, and cloud infrastructure. I also speak, read, and write Spanish fluently.

Experience

Work history, roles, and key accomplishments

Current

Staff Data Services Architect

Current

iRhythm Technologies, Inc.

Jun 2025 - Present (1 year 3 months)

Led migration to a modern lakehouse architecture, reducing infrastructure costs by 40%. Built AI-powered search and discovery platform and implemented data lineage and pipeline monitoring.

Fivetran Apache Iceberg Snowflake DBT Terraform Amazon EKS ArgoCD GitOps Glean Alation Synq Coalesce GitLab CI CD MySQL CDC Data Governance PII Classification RBAC

Data Services Manager

iRhythm Technologies, Inc.

Jan 2023 - Jun 2025 (2 years 5 months)

Managed a data systems engineering team of 13, prioritizing company-wide data needs and aligning team roadmap with architectural oversight.

Team Leadership Resource Allocation Strategic Planning Snowflake Data Lake Architecture

Sr Data Services Architect

iRhythm Technologies, Inc.

Apr 2021 - Jan 2023 (1 year 9 months)

Architected and built a multi-source enterprise data lake, consolidating data from various sources into a unified S3-based lake. Built Snowflake ingestion pipeline and dbt transformations.

Go ArgoWorkflows Kubernetes S3 Snowflake DBT Tableau Data Lake Data Governance

Database Engineer and Database Team Manager

Zuora

Jan 2016 - Jan 2021 (5 years)

Managed a team of 5 DBAs and oversaw more than 100 sharded databases. Designed and implemented disaster recovery and capacity planning systems.

MySQL PostgreSQL Terraform AWS EC2 EBS ZFS Python Machine Learning Graph Databases Neo4j SOX PCI

Senior MySQL and Postgres DBA

Groupon

Jan 2015 - Jan 2016 (1 year)

Developed a CMDB for automated database deployments and managed over 700 internal databases. Benchmarked new designs using R and performed system tuning.

MySQL PostgreSQL CMDB Automation R FreeBSD ZFS Ansible DaaS

Professional Services MySQL DBA Level IV

Rackspace Inc.

Jan 2013 - Jan 2015 (2 years)

Provided highest-level MySQL DBA services, architecting high-availability solutions and supporting enterprise customers.

MySQL Percona MariaDB Galera Xtrabackup HAProxy MongoDB Neo4j R

Senior MySQL DBA

KickApps LLC

Jan 2009 - Jan 2013 (4 years)

Improved database design and query performance across more than 20 physical servers. Migrated databases to AWS and developed SQL-based solutions to monitor and remove spam.

MySQL SQL AWS Database Optimization Data Analysis

Professional Services MySQL Certified DBA

Rackspace Inc.

Jan 2007 - Jan 2009 (2 years)

Established and built out the Rackspace Professional Services MySQL DBA team. Developed and delivered MySQL training programs.

MySQL Database Design Installation Migration Monitoring Backup And Recovery Tuning Training

Senior System Engineer

Rackspace Inc.

Jan 2006 - Jan 2007 (1 year)

Technical lead for the Managed M6 team and YouTube client, resolving escalated MySQL issues and coaching a team of eight technicians.

MySQL Linux Team Leadership Mentorship Technical Writer Ruby on Rails

Level III UNIX System Engineer

Rackspace Inc.

Jan 2003 - Jan 2006 (3 years)

Troubleshot and optimized customer servers across four datacenters, including Apache and MySQL/Postgres servers. Provided consulting services generating up to $5M in annual revenue.

Unix Linux Apache MySQL PostgreSQL Troubleshooting Consulting