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I have been in IT industry over 30 years. My last job (the end of 2025) was EDW Support/Operation leader withing BCBSMA since 2003. I lead EDW Platform migration from Legacy DB2 to NETEZZA then Cloud (SNOWFLAKE). I have in-depth and hands on experiences on these platforms of data flow including SQL/ETL and ELT (ODI). I lead offshore/onshore team to support these data flows to the end users for their reports, analysis, extracts... based on the EDW data which got constantly refreshed daily, weekly, monthly, quarterly and yearly.…I have been in IT industry over 30 years. My last job (the end of 2025) was EDW Support/Operation leader withing BCBSMA since 2003. I lead EDW Platform migration from Legacy DB2 to NETEZZA then Cloud (SNOWFLAKE). I have in-depth and hands on experiences on these platforms of data flow including SQL/ETL and ELT (ODI). I lead offshore/onshore team to support these data flows to the end users for their reports, analysis, extracts... based on the EDW data which got constantly refreshed daily, weekly, monthly, quarterly and yearly.

Sam E. Liu

Data Analyst, Database Developer, Developer, +2

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I have been in IT industry over 30 years. My last job (the end of 2025) was EDW Support/Operation leader withing BCBSMA since 2003. I lead EDW Platform migration from Legacy DB2 to NETEZZA then Cloud (SNOWFLAKE). I have in-depth and hands on experiences on these platforms of data flow including SQL/ETL and ELT (ODI). I lead offshore/onshore team to support these data flows to the end users for their reports, analysis, extracts... based on the EDW data which got constantly refreshed daily, weekly, monthly, quarterly and yearly.…I have been in IT industry over 30 years. My last job (the end of 2025) was EDW Support/Operation leader withing BCBSMA since 2003. I lead EDW Platform migration from Legacy DB2 to NETEZZA then Cloud (SNOWFLAKE). I have in-depth and hands on experiences on these platforms of data flow including SQL/ETL and ELT (ODI). I lead offshore/onshore team to support these data flows to the end users for their reports, analysis, extracts... based on the EDW data which got constantly refreshed daily, weekly, monthly, quarterly and yearly.

Available to hire

I have been in IT industry over 30 years. My last job (the end of 2025) was EDW Support/Operation leader withing BCBSMA since 2003. I lead EDW Platform migration from Legacy DB2 to NETEZZA then Cloud (SNOWFLAKE). I have in-depth and hands on experiences on these platforms of data flow including SQL/ETL and ELT (ODI). I lead offshore/onshore team to support these data flows to the end users for their reports, analysis, extracts… based on the EDW data which got constantly refreshed daily, weekly, monthly, quarterly and yearly.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Work Experience

Lead/Manager of Enterprise Data Warehouse Production Support at Blue Cross Blue Shield of Massachusetts

November 1, 2004 - December 31, 2025

Led offshore/onshore teams with triage and agile experiences, ensuring maximum accessibility of the Enterprise Data Warehouse to EDW users company-wide; oversaw 24x7 support and coordination with on-shore/off-shore vendors and internal teams; managed data enhancement, maintenance, disaster/recovery projects, and production loads to deliver accurate data on a regular schedule; architected and integrated processes across platforms and automated production processes to improve efficiency.

Consultant at Benchmarking Partners Inc.

September 1, 2003 - October 31, 2004

Managed, designed, and maintained NT networks, SQL databases, IIS sites, Exchange servers, backup strategies, corporate virus protection and VPN; designed ERP/DB/data warehouse projects for clients; collaborated with internal staff and vendors to keep IT environments running with minimal interruption.

DBA at SunGard Investment Management System, SunGard

September 1, 2000 - July 31, 2003

Installed/configured/upgraded Oracle/Sybase servers on UNIX/NT; performed backups and recovery; tuned performance for DB operations and clusters; developed tools for DB object access, data analysis, migration, DB inventory and query optimization; designed Oracle/Sybase/MS SQL/DB2 database structures and migration support across platforms.

Sr Software Engineer at Pegasus Systems, Inc.

August 1, 1997 - September 30, 2000

Developed/integrated Pegasus systems on MS SQL/Oracle/Sybase on NT/UNIX; set up Pegasus system installations including shell scripts; performed performance tuning and data migration.

Sr Network Engineer at Boston Regional Medical Center (Information Systems)

September 1, 1996 - August 31, 1997

Designed and implemented enterprise network infrastructure including NetWare LAN, LANalyzer, and related tools; monitored and tuned network performance; oversaw daily technical support; led network migration projects.

PC/LAN Analyst at Technology Evaluation and Support Team (TEST), John Hancock Financial Services

July 1, 1994 - September 30, 1996

Responsible for research, evaluation, implementation, and pre-sales of corporate-standard products; supported LAN management and customer support; configured PC/LAN Operating Systems, network components, and backup systems.