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Chien-Ming Tu
Verified Expert in Engineering
Data Architect and Developer
Boston, MA, United States
Toptal member since October 21, 2025
Bio
Chien-Ming is a results-driven professional with extensive experience in developing and deploying sophisticated software applications for companies and consulting firms. He works in all phases of cloud modernization and systems implementation, including the strategy, business process, architecture design, development, and deployment for various enterprise applications in business intelligence (BI), data warehousing, big data, SOA, CRM, ERP, OLAP, AI, eCommerce, and database marketing.
Portfolio
Infosys
Amazon Web Services (AWS), Azure Cloud Services, Qlik, Apache Iceberg, Spark...
Bis3
Amazon Web Services (AWS), Azure Cloud Services, Oracle Service Cloud, Redshift...
Birst (acquired by Infor)
Infor, Amazon Web Services (AWS), Azure Cloud Services, Microsoft SQL Server...
Experience
- AWS Cloud Solutions - 15 years
- Data Architecture - 15 years
- Amazon RDS - 10 years
- IT Project Management - 8 years
- AWS Cloud Infrastructure - 8 years
- Redshift - 5 years
- Data Mesh - 5 years
- Apache Iceberg - 2 years
Preferred Environment
Amazon Web Services (AWS), Azure Cloud Services
The most amazing...
...thing I've done is perform 10+ AWS and Azure cloud modernizations for Fortune 500 companies, including Pfizer, State Street, and Northwestern Mutual.
Work Experience
Technology Architect
2021 - 2025
Infosys
- Implemented the cloud migration of IBM Db2 to AWS PostgreSQL, Iceberg, and Snowflake by deploying Qlik, DMS, Glue, Python, SQL, and Spark APIs, Liquibase via Terraform GitLab CI/CD pipeline, and Docker containers for Northwestern Mutual.
- Designed and planned the implementation of a multi-cloud architecture using Azure, AWS, and Oracle Cloud Infrastructure (OCI) cloud services to support enterprise financial reporting systems for State Street.
- Planned and executed a 200-terabyte clinical EMR data analysis system migration into AWS Cloud using EC2, FSx-Lustre, AWS Backup, S3, DataSync, SNS, and CloudWatch services for Pfizer.
- Implemented event-driven and batch-processing architectures for Pfizer clinical study applications using AWS EventBridge, Batch/Fargate, Step Functions, Lambda with Python, Amazon API Gateway, SNS, SQS, S3, and Aurora-PostgreSQL, and Redshift.
- Deployed automated IT service management (ITSM) for Pfizer by integrating ServiceNow IT registry data and Workday HCM data.
- Integrated clinical trial data and vaccine sample tracking data with vendors and partners enforcing GxP compliance guidelines for Pfizer. Also integrated clinical document classification using SageMaker to build, train, and deploy ML and AI models.
Technologies: Amazon Web Services (AWS), Azure Cloud Services, Qlik, Apache Iceberg, Spark, AWS Glue, Amazon EventBridge, AWS Database Migration Service (DMS), Python, Data Architecture, Amazon SageMaker, AWS Lake Formation, Redshift, PostgreSQL, AWS Cloud Infrastructure, Azure Cloud Infrastructure, Data Mesh, SQL, Snowflake, AWS Cloud Solutions, Amazon RDS, Data Engineering, MongoDB, ETL, SQL Server Analysis Services (SSAS), Data Modeling, Data Strategy, Big Data, Data Governance, Data Management, Technical Leadership, ADF, Reporting, Microsoft Power BI, Machine Learning, Data Pipelines, EMR, Amazon Aurora, Amazon Redshift, Amazon AppFlow, Azure Synapse, Amazon EC2, ETL Pipelines, Data Cleaning, Data Cleansing, ETL Tools, Product Management, Data Product Management, Program Management
Cloud & Data Architect | Project Manager
2020 - 2021
Bis3
- Collaborated with the product owner to develop an implementation strategy, project plan, development stages, and roadmaps.
- Performed a proof of concept to validate the vision and project scope.
- Developed a hybrid cloud data lake and warehouse solution for a sales and marketing data integration product using Azure Data Factory, AWS Lake Formation, Glue, S3, Redshift, RDS, and DynamoDB, Oracle (OCI, OIC, OAC), and Snowflake Virtual Warehouse.
Technologies: Amazon Web Services (AWS), Azure Cloud Services, Oracle Service Cloud, Redshift, AWS Glue, AWS Lake Formation, Python, SQL, Azure Data Factory (ADF), Snowflake, Data Architecture, Oracle Database, PostgreSQL, IT Project Management, AWS Cloud Infrastructure, Azure Cloud Infrastructure, Data Mesh, Oracle Cloud Infrastructure (OCI), Amazon RDS, Spark, Data Engineering, MongoDB, ETL, Data Modeling, SQL Server Analysis Services (SSAS), Data Governance, Data Management, Big Data, Data Pipelines, EMR, Amazon Aurora, Amazon Redshift, Amazon AppFlow, Amazon EC2, ETL Pipelines, Data Cleaning, Data Cleansing, ETL Tools, Product Management, Data Product Management
Senior BI Consultant
2018 - 2019
Birst (acquired by Infor)
- Deployed 30+ Infor/Birst AWS cloud-based BI platforms for 30+ customer enterprise data integration projects to provide unified, reliable, and consistent business insights through dashboards and reports.
- Provided prebuilt Network BI solutions—data warehouse, dashboards, reports—for Infor CloudSuite ERP and CRM applications.
- Re-architected and migrated MS SQL Server, Oracle, PostgreSQL, Teradata, and Cloudera data into Infor/Birst's AWS Data Lake, Redshift, EMR, and DynamoDB environment.
Technologies: Infor, Amazon Web Services (AWS), Azure Cloud Services, Microsoft SQL Server, Oracle BI, Birst, Data Mesh, Data Architecture, SQL, Python, Oracle Database, SQL Server Integration Services (SSIS), Data Engineering, SQL Server Analysis Services (SSAS), SSAS Tabular, Big Data, Data Governance, Database Management, Data Pipelines, Amazon Aurora, Amazon EC2, ETL Pipelines, Data Cleaning, Data Cleansing, ETL Tools, Product Management, Data Product Management, Program Management
Solution Architect
2016 - 2017
Bis3
- Worked with PwC's clients in developing migration and integration strategies for 800+ IaaS, PaaS, and SaaS applications for the global financial data integration.
- Developed PwC's migration models/patterns, project plan, security control framework, and the setup of deployment teams for AWS Cloud migration and transformation projects.
- Refined PwC's strategies and roadmaps to include cloud master data management (MDM) and data governance implementation.
- Developed data integration services for Bis3 and Qteria to exchange data in Oracle or AWS hybrid cloud data warehouse, BI, ETL, and data lake environments using ODI and GoldenGate, OBIEE, Oracle EBS, and AWS Cloud Services.
- Built big data and ML applications for customer segmentation and fraud detection in healthcare claim cases using AWS services for Bis3 and Qteria.
Technologies: Amazon Web Services (AWS), Oracle EBS, Oracle BI, Oracle ODI, Oracle GoldenGate, AWS Cloud Infrastructure, IT Project Management, Data Architecture, AWS Cloud Solutions, Python, SQL, Oracle Database, Amazon RDS, ETL, Data Modeling, SQL Server Analysis Services (SSAS), Technical Leadership, Reporting, Data Pipelines, Amazon Aurora, Amazon Redshift, Amazon AppFlow, Amazon EC2, ETL Pipelines, Data Cleaning, Data Cleansing, ETL Tools, Product Management, Data Product Management
Senior Technical Account Manager
2016 - 2016
Amazon Web Services (AWS)
- Oversaw developing and executing strategies and plans to implement data warehouse, BI, and ETL cloud solutions using various AWS Cloud services, including EC2, S3, IAM, RDS, Redshift, and Trusted Adviser, for enterprise customers.
- Monitored cloud services for the daily operations of designated enterprise customers.
- Conducted monthly reviews of AWS Cloud performance, issues, billing summary, and improvement items.
Technologies: Amazon Web Services (AWS), AWS Cloud Solutions, AWS Cloud Architecture, AWS Cloud Infrastructure, SQL, Python, Data Architecture, Amazon RDS, AWS Database Migration Service (DMS), IT Project Management, Data Engineering, MongoDB, Data Pipelines, EMR, Amazon Aurora, Amazon Redshift, Amazon EC2, ETL Pipelines, Data Cleaning, Data Cleansing, ETL Tools, Data Product Management, Program Management
Solution Architect | Acting CTO
2011 - 2016
Winsper Inc.
- Deployed Winsper BI Cloud Data Center in AWS Cloud to support Winsper's SaaS applications for BI analysis and marketing database services using Amazon EC2, S3, IAM, DevWorks, VPC, RDS, RedShift, Oracle, and Microsoft BI tools.
- Implemented Microsoft and Oracle BI solutions to support marketing database services for Winspers' Fortune 500 clients to perform various analyses on customer, products, sales, and campaign penetration effectiveness.
- Developed Winsper Eye-On services to analyze enterprise marketing ROI based on assessment of related KPIs and scores.
- Implemented data governance for HIPAA, ISO 27000, and PII compliance.
Technologies: Amazon Web Services (AWS), AWS Database Migration Service (DMS), Oracle ODI, Oracle Database, Amazon RDS, SQL, Python, IT Project Management, Data Architecture, Data Engineering, MongoDB, ETL, Data Modeling, SQL Server Analysis Services (SSAS), Data Management, Data Governance, Technical Leadership, Reporting, Microsoft Power BI, Data Pipelines, Amazon Aurora, Amazon EC2, ETL Pipelines, Data Cleaning, Data Cleansing, ETL Tools, Product Management, Program Management
Data & Solution Architect
2009 - 2013
Bis3
- Collaborated with IBM's global services team to implement 20+ terabytes of enterprise data warehouse (EDW) and OBIEE applications.
- Handled EDW, data mart, and OBIEE implementation and training of designers and architects on data modeling and Oracle technologies for IBM's global services team.
- Advised IBM's global services team on deploying Exalytics and Exadata to improve overall performance for the ETL, CDC, and MDM processing of 120+ data sources using GoldenGate and Oracle Data Integrator (ODI) tools.
- Implemented data warehouse and ETL services using ODI to extract data from various sources, including the Oracle sales and financial data warehouse, and Excel files to support the sales and business development analysis system for Iron Mountain.
- Developed an interface to transfer data from various sources—including Oracle EBS v11/v12, Salesforce, Excel financial reports, and legacy systems—to the data warehouse and OBIEE/OBIA systems for Mercury Computer Systems.
- Collaborated with business users and the development team to gather user requirements for dimensional modeling and implementing BI, online analytical processing (OLAP), ETL, data warehouse, and MDM for Mercury Computer Systems.
- Advised on, planned, and developed the architecture, integration process, and best practices for implementing multitenancy Alterian Marketing Suite Systems for Targetbase.
- Developed ETL, MDM, and BI solutions using Informatica PowerCenter and BusinessObjects for Targetbase.
Technologies: AWS Cloud Solutions, AWS Cloud Computing Services, Oracle Business Intelligence Enterprise Edition 11g (OBIEE), AWS Database Migration Service (DMS), SQL, Python, IT Project Management, Data Architecture, Oracle EBS, Informatica, Oracle Data Integrator (ODI), Data Engineering, MongoDB, ETL, Database Modeling, SQL Server Integration Services (SSIS), SQL Server Analysis Services (SSAS), Big Data, Data Governance, Data Management, Data Cleaning, Data Cleansing, ETL Tools, Data Product Management
CTO | Director
2004 - 2009
Extraprise (acquired by QuickPivot)
- Led a development team to design and develop SOA and the implementation of webMethods, Oracle, Microsoft, Teradata, and BI solutions in Extraprise private cloud.
- Supported configurable and reusable marketing data acquisition, standardization, cleansing, and loading processes of Extraprise's marketing database hosting service for Fortune 500 clients, including Pfizer, Intel, and Iron Mountain.
- Designed and developed the system architecture framework for Extraprise's insight-to-interaction hosting system for deploying various CRM, OLAP, and BI applications.
- Implemented an MDM system to standardize, cleanse, consolidate, and enrich data.
- Enforced data governance for the hosting center's data security and policy compliance on PII, HIPAA, and ISO 27000.
Technologies: Oracle BI, Siebel, Informatica, Oracle Database, HP-UX, Microsoft SQL Server, SQL, Data Architecture, IT Project Management, Java, Data Engineering, ETL, Database Modeling, SQL Server Analysis Services (SSAS), SQL Server Integration Services (SSIS), Big Data, Data Management, Data Governance, Data Pipelines, ETL Tools, Product Management, Data Product Management, Program Management
Co-founder | Solution Consultant
2000 - 2004
JDEE International Corp.
- Served as Dynamic Graphics' project manager and technical lead, implementing Oracle e-business ERP (general ledger, accounts receivable and payable, order management, inventory) and CRM (telesales, contract, incentive compensation, marketing online).
- Engaged as e21corp's project manager to perform global technology integration and Oracle ERP deployment for an international e-business company's US and Asia markets.
- Contributed as Ty Inc.'s project coordinator to develop B2C shopping and C2C auction sites using Microsoft database and BI applications.
Technologies: Oracle EBS, Oracle Database, SQL, IT Project Management, Microsoft SQL Server, Data Architecture, Data Management, Data Governance, Data Pipelines, Product Management
Senior Manager | Data Architect
1998 - 2000
Whittman-Hart Consulting Inc.
- Handled the ERP data warehouse implementation for Panera's nationwide stores' POS sales.
- Implemented OLAP, operational data store (ODS), and data warehouse solutions for Peapod LLC.
- Executed OLAP, ODS, and data warehouse solutions for BlueMeteor Corp and AON PLC.
Technologies: Project Review, IT Project Management, SQL, Oracle Database, Oracle ERP, Data Engineering
Manager
1997 - 1998
Braun Consulting Group
- Conducted IT infrastructure integration for multiple HP-UX, Windows, and EMC systems to support Ty Inc.'s daily operations.
- Designed a data mart for John Deere's OLAP project.
- Planned the implementation of Oracle Financial, Order Management, and Oracle Inventory for Ty Inc.
Technologies: Oracle ERP, Dell EMC, HP-UX, Oracle BI, Oracle Database, SQL, Java, ETL, Data Modeling
Senior Consultant | Technical Lead
1996 - 1997
KPMG
- Served as the technical lead on the Oracle ERP engineering and manufacturing integration project for GE Quartz.
- Developed a custom time and expense (T&E) system for AON Insurance's A&A company to enable 3,000 sales personnel from 15 regional offices to report their T&E.
- Integrated the new T&E system with HQ's Oracle Financial and data warehouse systems for OLAP applications.
Technologies: Oracle ERP, Oracle Database
Project Lead | Oracle Database Administrator
1990 - 1996
Chicago Stock Exchange
- Designed, developed, and administered Oracle databases to support trading floor back-office operations.
- Served as the project lead in developing the user interface and reports for the Chicago Stock Exchange's corporate database systems.
- Engaged as the Oracle Database Administrator to maintain corporate Oracle databases to support back-office operations.
Technologies: Oracle Database, Java, SQL, IT Project Management, Database Modeling, Data Management, Data Product Management
Experience
AWS Cloud Migration for Pfizer
An AWS cloud migration project for one of the world’s premier biopharmaceutical companies.
ROLE
Cloud data architect and developer, project manager
KEY ACTIVITIES
• Planning and execution of the migration of a 200-terabyte clinical electronic medical record (EMR) data analysis system into AWS Cloud using EC2, FSx-Lustre, AWS Backup, S3, DataSync, SNS, CloudWatch, and Kafka services.
• Implementation of event-driven and batch processing architecture for clinical study applications using AWS EventBridge, AWS Batch, API Gateway, IAM, Step, Lambda, and Python functions, SNS, SQS, CloudWatch, S3, Aurora-PostgreSQL, and Redshift data warehouse.
• Deployment of the automated ITSM via the integration of ServiceNow IT registry data and Workday HCM data.
• Integration of clinical trial data and vaccine sample tracking data with vendors and partners enforcing GxP compliance guidelines.
• Integration of clinical document classification using SageMaker to build, train, and deploy ML and AI models.
ROLE
Cloud data architect and developer, project manager
KEY ACTIVITIES
• Planning and execution of the migration of a 200-terabyte clinical electronic medical record (EMR) data analysis system into AWS Cloud using EC2, FSx-Lustre, AWS Backup, S3, DataSync, SNS, CloudWatch, and Kafka services.
• Implementation of event-driven and batch processing architecture for clinical study applications using AWS EventBridge, AWS Batch, API Gateway, IAM, Step, Lambda, and Python functions, SNS, SQS, CloudWatch, S3, Aurora-PostgreSQL, and Redshift data warehouse.
• Deployment of the automated ITSM via the integration of ServiceNow IT registry data and Workday HCM data.
• Integration of clinical trial data and vaccine sample tracking data with vendors and partners enforcing GxP compliance guidelines.
• Integration of clinical document classification using SageMaker to build, train, and deploy ML and AI models.
AWS Cloud Modernization for Northwestern Mutual Insurance
An AWS cloud modernization project for a major insurance institution.
ROLE
AWS cloud and data architect
KEY ACTIVITY
• Implementation of the cloud migration of IBM Db2 to AWS PostgreSQL, Iceberg, and Snowflake by deploying Qlik, DMS, Glue, Python, SQL, and Spark APIs, Liquibase via Terraform GitLab CI/CD pipeline, and Docker containers.
ROLE
AWS cloud and data architect
KEY ACTIVITY
• Implementation of the cloud migration of IBM Db2 to AWS PostgreSQL, Iceberg, and Snowflake by deploying Qlik, DMS, Glue, Python, SQL, and Spark APIs, Liquibase via Terraform GitLab CI/CD pipeline, and Docker containers.
The Deployments of Business Intelligence Solutions for Infor ERP/CRM Applications
http://www.infor.com• Deployed 30+ Infor/Birst AWS cloud-based business intelligence platforms for 30+ customers' enterprise data integration projects to provide unified, reliable, and consistent business insights through dashboards and reports.
• Pre-built network BI solutions (data warehouse, dashboards, reports) for Infor CloudSuite ERP/CRM applications.
• Re-architected and migrated MS SQL Server/Oracle/PostgreSQL/Teradata/Cloudera data into Infor/Birst's AWS Data Lake/Redshift/EMR/DynamoDB environment.
• Pre-built network BI solutions (data warehouse, dashboards, reports) for Infor CloudSuite ERP/CRM applications.
• Re-architected and migrated MS SQL Server/Oracle/PostgreSQL/Teradata/Cloudera data into Infor/Birst's AWS Data Lake/Redshift/EMR/DynamoDB environment.
Education
1984 - 1986
Master of Science Degree in Computer Science
Washington University in St. Louis - St. Louis, MO, USA
1982 - 1985
Bachelor of Science Degree in Systems and Data Processing
Washington University in St. Louis - St. Louis, MO, USA
Certifications
APRIL 2016 - APRIL 2019
AWS Certified Developer
Amazon Web Services
APRIL 2016 - APRIL 2019
AWS Certified SysOps Administrator
Amazon Web Services
APRIL 2016 - APRIL 2019
AWS Certified Cloud Solution Architect – Associate
Amazon Web Services
Skills
Tools
AWS Glue, Apache Iceberg, Oracle GoldenGate, Oracle Business Intelligence Enterprise Edition 11g (OBIEE), Oracle ERP, Amazon SageMaker, Microsoft Power BI, Dell EMC
Languages
SQL, Python, Snowflake, Java
Paradigms
ETL, Oracle ODI
Platforms
Amazon Web Services (AWS), AWS Cloud Computing Services, Qlik, Oracle Database, AWS Lambda, Oracle Data Integrator (ODI), Amazon EC2, Oracle Cloud Infrastructure (OCI), HP-UX, Azure Synapse
Storage
Redshift, PostgreSQL, Database Modeling, Database Management, Data Pipelines, Amazon Aurora, Azure Cloud Services, Microsoft SQL Server, MongoDB, SQL Server Integration Services (SSIS), SSAS Tabular, SQL Server Analysis Services (SSAS)
Frameworks
Spark, ADF
Other
Computer Science, Data Processing, AWS Cloud Solution, Amazon EventBridge, AWS Database Migration Service (DMS), Oracle BI, AWS Cloud Solutions, Project Review, IT Project Management, Data Architecture, Amazon RDS, AWS Cloud Infrastructure, Data Mesh, Computer Systems, Data Engineering, Data Modeling, Data Strategy, Data Governance, Data Management, Big Data, Technical Leadership, Reporting, Amazon Redshift, ETL Pipelines, Data Cleaning, Data Cleansing, ETL Tools, Product Management, Data Product Management, Program Management, AWS SysOps Administration, Oracle Service Cloud, AWS Lake Formation, Azure Data Factory (ADF), Infor, Birst, Oracle EBS, Informatica, Azure Cloud Infrastructure, Machine Learning, EMR, Amazon AppFlow, AWS Solution Development, Siebel, AWS Cloud Architecture
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