Amit Jain, Developer in Singapore, Singapore
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Amit Jain

Database Design and Programming Developer

Singapore, Singapore

Toptal member since January 16, 2023

Bio

Amit is a technology professional with over 21 years of hands-on experience in the architecture, design, build, and implementation of data platforms, transactional systems, and analytics solutions for global Fortune 500 companies. He has worked across banking, insurance, telecom, gaming and attractions, government, B2B eCommerce, life sciences, and higher education industries.

Portfolio

National University of Singapore
Oracle Database, SQL Server 2017, Informatica ETL, erwin Data Modeler...
Aptitude Software
ETL Tools, Oracle, Oracle SQL, PL/SQL, Data Cleaning, Data Quality, ELT...
Just Analytics Pte. Ltd.
Oracle, Oracle SQL, Oracle BI, PL/SQL, Oracle BI apps...

Experience

  • Oracle PL/SQL - 19 years
  • Oracle Database - 19 years
  • Data Warehousing - 18 years
  • ETL Implementation & Design - 15 years
  • Database Programming - 15 years
  • Data Architecture - 15 years
  • Data Engineering - 15 years
  • Data Modeling - 15 years

Preferred Environment

Oracle Database, Microsoft Power BI, Data Architecture, Data Engineering, Data Modeling, Data Warehousing, Data Visualization, ETL Implementation & Design, Master Data Management (MDM), Microsoft Fabric

The most amazing...

...data model, database, and ETL design I've created were for the private wealth management division of a global bank.

Work Experience

Data Architect

2020 - 2025
National University of Singapore
  • Represented the data domain as a Member of the Enterprise Architecture Group at NUS. Performed technical design reviews and provided advisory and data architecture services to application teams.
  • Conceptualized, designed, and implemented an enterprise operational data store (ODS) to meet the transactional data needs of various downstream information systems from other enterprise business applications.
  • Specified the ETL framework components and design for the University's enterprise data warehouse.
  • Defined, published, enforced, and promoted data architecture, database design, ETL design standards, guidelines, and best practices within NUS IT.
  • Designed the data architecture, normalized data models, databases, and ETL interfaces for critical operational systems of the University, including the admissions system, scholarship application system, and financial aid system.
  • Defined the enterprise data architecture to fulfill the data requirements of various users, departments, and applications of the University.
  • Acted as the solution architect for multiple data marts implemented for various subject areas.
  • Served as a member of technical evaluation committees for the evaluation and selection of technology solutions, platforms, and partner consultancy firms for data and analytics solutions.
  • Managed vendor and own team members in delivering new data and analytics capabilities and solutions to business users.
  • Managed a team of junior data architects and performed activities such as resourcing and hiring, goal setting and workplans for team members, performance evaluations, and appraisals.
Technologies: Oracle Database, SQL Server 2017, Informatica ETL, erwin Data Modeler, Data Architecture, Business Analytics, Database Design, Database Programming, Data Engineering, Data Modeling, Data Visualization, Data Warehousing, ETL Implementation & Design, Master Data Management (MDM), SQL, Data Analysis, Data Analytics, Data Warehouse Design, ETL Tools, Data Pipelines, Oracle, PL/SQL, Oracle PL/SQL, Database Development, Database Optimization, Databases, Dimensional Modeling, Database Normalization, Data Governance, Informatica Cloud, Informatica PowerCenter, Microsoft Purview, Reference Data Management, Team Management, Project Delivery, IT Project Management, Project Planning, Work Breakdown Structure, Change Management, Production Support, Star Schema, Azure Data Factory (ADF), Azure SQL, Data Cleaning, Microsoft Fabric, Blob Storage, Azure, Microsoft Excel, Data Quality, Azure Synapse, ELT, Data Lakes, Microsoft Power BI, Azure Data Lake, Power BI Desktop, Business Intelligence (BI), Dashboards, Kimball Methodology

Principal Technical Consultant

2016 - 2020
Aptitude Software
  • Advised client and vendor IT teams on the data requirements from various policy management, actuarial, and other systems as the data architect for a client company in the insurance sector.
  • Assisted with the modelling of a financial data mart.
  • Created interface specifications for data feeds from the financial data mart to the staging tables of the target application product.
  • Performed the solutioning and design for outbound data feeds and the technical reconciliation framework.
  • Performed source data profiling, data modelling, and technical design for outbound data interfaces as an ETL consultant for a client in the telecommunications industry.
  • Developed ETL mappings and database packages to extract, transform, and load data from source applications into the target application.
  • Tuned and optimized queries and PL/SQL code for performance.
Technologies: ETL Tools, Oracle, Oracle SQL, PL/SQL, Data Cleaning, Data Quality, ELT, Data Architecture

Senior Solution Architect

2013 - 2016
Just Analytics Pte. Ltd.
  • Delivered packaged/bespoke BI&DW solutions for business organizations as a solutions architect and delivery lead.
  • Engaged with the client business and technology stakeholders to analyse and finalize business, functional, and technical requirements.
  • Led a team responsible for the implementation of a global management reporting framework for Liquidity Risk Analytics for the Standard Chartered Banking group and individual business units.
  • Directed a team responsible for the implementation of a global management reporting framework for monitoring the quality of the data used to calculate the daily LCR for the Standard Chartered Banking group and individual business units.
  • Led a team responsible for the implementation of an automated data quality analysis and reporting framework based on the BCBS 239 risk data aggregation principles for the Standard Chartered Banking group and individual business units.
Technologies: Oracle, Oracle SQL, Oracle BI, PL/SQL, Oracle BI apps, Oracle Data Integrator (ODI), Star Schema, Data Cleaning, Data Quality, ELT, Business Intelligence (BI), Dashboards, Data Architecture, Kimball Methodology

Assistant Consultant

2010 - 2013
Tata Consultancy Services
  • Developed the solution architecture, database design, and ETL framework for a real-time reporting system for a global bank.
  • Designed and deployed the normalized data model for a real-time reporting system for a global bank.
  • Led the development and testing of the data replication and data transformation components of the system, and the SQL queries for the front-end of a real-time reporting system for a global bank.
  • Coordinated with the release management, production management, and infrastructure teams in the setup of the hardware and software infrastructure for the UAT and production environments for a real-time reporting system for a global bank.
  • Trained members of the development, release management, and production support teams of a global bank on Oracle GoldenGate 11g.
  • Engaged with the regional business stakeholders to define the functional specifications for a regional web portal for the clients and partners of a global insurance major.
  • Defining the solution architecture and data model for a regional web portal for the clients and partners of a global insurance major.
  • Coordinated with the client IT teams and managed the offshore delivery team for the development of a regional web portal for the clients and partners of a global insurance major.
Technologies: Oracle GoldenGate, SQL, PL/SQL, Oracle Database, Functional Design, Functional Analysis, Data Modeling, Offshore Team Management, Distributed Team Management, Production Support, Data Cleaning, Data Quality, ELT, Data Architecture

Senior Technical Consultant

2009 - 2010
Oracle
  • Defined the ETL architecture and batch design for an Enterprise Data Warehouse for the Media Development Authority of Singapore, Singapore’s former regulatory authority for the media industry.
  • Developed the data warehouse components, including the database objects, ETL mappings, process flows, and PL/SQL code.
  • Managed the packaging and deployment of the solution to the production environment and provided post-go-live support.
Technologies: Oracle Database, Oracle Business Intelligence Enterprise Edition 11g (OBIEE), Oracle Warehouse Builder (OWB), Oracle PL/SQL, Oracle SQL, Production Support, Data Cleaning, Data Quality, ELT, Dashboards, Data Architecture, Kimball Methodology

Experience

Basel III LCR and Stress Analytics Dashboards for a Global Bank

Led a team responsible for the implementation of a global management reporting framework for Liquidity Risk Analytics. The framework consists of a set of dashboards that enable analysis of the key drivers of the movement in the liquidity position of the bank and the components of the LCR ratio.
(inflows, outflows, HQLA) reported by the bank for regulatory compliance, both at the group level and the individual country level.

Real-time Reporting Portal for the Wealth Management Business of a Global Bank

I was the technical architect and database lead for the development of the Bankers’ Desktop, a reporting system for the Front Office managers of the bank’s private wealth management business. It provides them with a real-time, secure, and personalized overview of their client accounts for their day-to-day client activities. As part of my role in the project, I

• Defined the architecture and design of the database and ETL framework.
• Designed and deployed the normalized data model for the application.
• Led the development and testing of the data replication and data transformation code components of the system and the SQL queries for the front-end screens.
• Provided Level 3 support for the replication and database components of the production system in Geneva, Switzerland.
• Trained members of the development, release management, and production support teams on Oracle Golden Gate 11g.
• Assisted the production management team in the planning, setup, and testing of the disaster recovery environment.
• Prepared required documentation in all phases of the SDLC, including the solution recommendations, technical design for the database and ETL components, configuration and deployment documentation, and operations guides.

Customer MDM for a B2B eCommerce Company

I was an ETL consultant for the delivery of an extension of the Enterprise Data Warehouse of Global Sources Pte. Ltd., Singapore, a leading global B2B Trade media company.

The project involved the integration of customer data from 24 transactional databases for the purpose of establishing a customer master data repository, to enable the identification of cross-sell and up-sell opportunities for various lines of business of the organization.

My responsibilities in the project included development of ETL mappings using OWB, development of PL/SQL packages to perform pre-processing of the data loaded into the EDW, tuning of ETL mappings and SQL and PL/SQL code developed by the team for optimal performance, tuning of views created for Hyperion reports, preparation of detailed design documents for ETL mappings and pre-processing packages, preparation of the ETL system document, and unit testing and system integration testing of the ETL mappings, PL/SQL code and Hyperion business reports.

Enterprise Data Warehouse for a Telcom Major

I was the technical architect and ETL design lead for the development of an Enterprise Data Warehouse for Starhub Ltd., Singapore's 2nd largest Telco.

The project was part of the BSS transformation program at Starhub and involved mapping of their existing EDW to the new data sources being implemented as part of the program, i.e., Siebel CRM and BSCS.

My responsibilities in the project included specification of the technical architecture for the data warehouse, data model design, requirements analysis for downstream applications, and leading the team in the
functional and technical ETL design for the EDW.

Undergraduate Admissions System for a Global Top 10 University

I was the data architect for the undergraduate admissions portal of the National University of Singapore and was in charge of designing the normalized data model, data flows, and database design and build, defining the data integration interface specifications, and developing the ETL packages for the application.

Enterprise Operational Data Store for a Global Top 10 University

The Enterprise Operational Data Store (ODS) is a centralized data platform serving the operational data needs of application systems from other enterprise applications in NUS, such as the HR, Finance, Payroll, Procurement, Admissions, and Student systems. It has a hub-and-spoke architecture that enables the extraction, standardization, integration, curation, and storage of data from these enterprise systems in a single platform for distribution to other applications as needed.
As the solution architect for this data platform, I conceptualized, proposed, designed, and successfully implemented the Enterprise ODS within NUS. The platform now serves as a critical source of information for more than 110 applications within the University.

Scholarship and Financial Aid Application Systems for a Global Top 10 University

The scholarship and Financial Aid application systems enable undergraduate and graduate students to apply for various scholarships and financial aid schemes available to them during their studies at the University.

As the data architect for the applications, I defined and implemented the normalized data model, performed the database design and developed the required database objects, performed database programming, and defined the inbound and outbound integration interfaces of the system with other applications.

Student Analytics Dashboards for a Global Top 10 University

The Student Analytics dashboards are a set of 24 analytical visualization dashboards for the university's top management to analyse trends in various aspects of the student lifecycle at NUS. These include dashboards for Financial Aid student profile and trend analysis, internship supply and demand analysis, career services impact and outcome analysis, and Graduate Employment Outcomes and Statuses Analysis.

A data mart with a dimensional data model has been designed and implemented to provide the required data for the dashboards. The data mart tables are refreshed daily with new and updated data from 21 source operational systems through an ETL batch.

As the Solution Architect and technical delivery in charge for the project, I was responsible for defining the ETL framework, specifying the standards and best practices for the data model and ETL design, interfacing and coordinating with the various stakeholders in the project, and leading the delivery team to build, test, and implement the data mart, ensuring successful and on-time delivery of the project with high quality design and build.

Oracle BI Apps Financial Analytics Implementation

Project lead for the implementation and customization of Oracle BI Apps Financial Analytics 11g for Resorts World Sentosa, Singapore, and the development of custom BI dashboards and reports based on the
data extracted from the clients’ PeopleSoft FNSCM ERP system and hotel reservations system.

Enterprise Data Warehouse for a Government Regulatory Authority

I was the ETL lead for an Enterprise Data Warehouse for the Media Development Authority of Singapore, Singapore’s former regulatory authority for the media industry.

I was responsible for the ETL architecture, batch design, and development of the data warehouse components, including the database objects, ETL mappings, process flows, and PL/SQL code.

Education

2013 - 2016

Master's Degree in Information Technology

Singapore Management University - Singapore, Singapore

2000 - 2003

Master's Degree in Computer Science

Madurai Kamaraj University - Tamil Nadu, India

Certifications

JULY 2025 - JULY 2026

Microsoft Certified: Fabric Data Engineer Associate

Microsoft

APRIL 2025 - PRESENT

Python for Artificial Intelligence & Machine Learning

National University of Singapore

AUGUST 2024 - AUGUST 2026

Microsoft Certified: Fabric Analytics Engineer Associate

Microsoft

FEBRUARY 2024 - PRESENT

Artificial Intelligence & Machine Learning

National University of Singapore

NOVEMBER 2023 - PRESENT

Data Visualization with R

National University of Singapore

JUNE 2022 - PRESENT

Microsoft Certified: Azure Database Administrator Associate

Microsoft

APRIL 2022 - PRESENT

Microsoft Certified: Azure AI Fundamentals

Microsoft

MARCH 2022 - MARCH 2023

Microsoft Certified: Power BI Data Analyst Associate

Microsoft

FEBRUARY 2022 - PRESENT

Microsoft Certified: Security, Compliance, and Identity Fundamentals

Microsoft

FEBRUARY 2022 - PRESENT

Microsoft Certified: Azure Fundamentals

Microsoft

JANUARY 2022 - PRESENT

Microsoft Certified: Azure Data Fundamentals

Microsoft

Skills

Libraries/APIs

PySpark

Tools

Microsoft Power BI, Microsoft Excel, Power BI Desktop, Informatica ETL, Informatica Master Data Management (MDM), Oracle GoldenGate, Informatica PowerCenter, Oracle Business Intelligence Applications (OBIA), Oracle Business Intelligence Enterprise Edition 11g (OBIEE), Oracle Warehouse Builder (OWB), Tableau

Languages

SQL, Python 3, R, Python, Power Query M

Paradigms

ETL, Business Intelligence (BI), Database Development, Dimensional Modeling, Kimball Methodology, ETL Implementation & Design, Database Design, Change Management, Functional Analysis

Platforms

Oracle, Oracle Database, Azure, KNIME, Microsoft Fabric, Azure Synapse, Azure PaaS, Denodo, Oracle Data Integrator (ODI), RapidMiner, RStudio, Fabric Lakehouse

Storage

Oracle PL/SQL, Data Pipelines, PL/SQL, Databases, Master Data Management (MDM), Oracle SQL, Data Integration, Database Programming, Azure SQL, Data Lakes, SQL Server 2017, Azure SQL Databases, Amazon S3 (AWS S3)

Frameworks

Data Lakehouse

Other

Data Architecture, Data Engineering, Data Modeling, Data Warehousing, ETL Development, Data Warehouse Design, ETL Tools, Database Optimization, Production Support, Star Schema, Data Cleaning, Data Quality, ELT, Data Visualization, Business Analytics, erwin Data Modeler, Data Analysis, Data Analytics, Database Normalization, Data Governance, Team Management, Project Delivery, Azure Data Factory (ADF), Blob Storage, Azure Data Lake, Dashboards, Azure SaaS, Exploratory Data Analysis, Data Science, Informatica Cloud, Microsoft Purview, Reference Data Management, IT Project Management, Project Planning, Work Breakdown Structure, Solutioning, Solution Design, Logical Data Model (LDM), Physical Data Model, Data Security, Solution Architecture, Stakeholder Management, Machine Learning, Oracle BI, Oracle BI apps, Functional Design, Offshore Team Management, Distributed Team Management

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