Khalid Amin, Developer in Melbourne, Victoria, Australia
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Khalid Amin

Verified Expert  in Engineering

Data Modeling Developer

Melbourne, Victoria, Australia
Toptal Member Since
June 18, 2020

Khalid is a seasoned data professional with 20+ years of industry experience. His expertise includes data architecture, data engineering, modern data warehousing, big data, and analytics. Khalid has Microsoft certifications in Azure data engineering and Power BI. Additionally, he is skilled with SQL Server and Oracle database technologies. Khalid has very good interpersonal skills and is a true team player.


Data Modeling, Data Architecture, Data Engineering, Databricks, Azure...
Engine Group
Data Modeling, T-SQL (Transact-SQL), PySpark, Big Data, SQL, Data Queries...
Data Modeling, Big Data, Databases, SQL, Data Queries...




Preferred Environment

Microsoft Power BI, Microsoft Azure, Azure Data Factory, Azure Synapse Analytics, Azure Databricks, Big Data, Data Warehousing, Data Analytics, SQL Server 2012, SQL

The most amazing...

...achievement that I'm really proud of is that I restructured and performance tuned an enterprise database and improved its performance by ~500%

Work Experience

Data Architect

2021 - PRESENT
  • Worked as a data architect for a leading global client.
  • Involved in data architecture, data engineering, and data strategy to build the global common data model.
  • Participated in designing and developing KPIs and semantec layers on top of the global common data model.
Technologies: Data Modeling, Data Architecture, Data Engineering, Databricks, Azure, Consulting, Azure Data Explorer

Senior Data Consultant

2014 - 2021
Engine Group
  • Involved in data architecture and strategy, designing end-to-end data platform solutions such as discovery, ingestion, integration/ETL/ELT, transformations and data wrangling, modeling and star schema design, analytics, and BI reporting.
  • Worked on Microsoft SQL Server, TSQL, Microsoft Azure Data Factory, and Azure Synapse Analytics. Wrote ETL and ELT pipelines.
  • Devised coding standards for SQL Server stored procedures, SQL, and user-defined functions.
  • Rewrote several poorly-performing databases to dramatically improve their performance.
  • Integrated data from several sources to provide a holistic view of customer behavioral data, browsing habits, survey responses, and more.
  • Created analytics reports such as correlations, NPS, cross-tabulations, trends, and theming verbatim responses for various projects.
  • Created analytics and business intelligence dashboards and reports using Microsoft Power BI.
Technologies: Data Modeling, T-SQL (Transact-SQL), PySpark, Big Data, SQL, Data Queries, Apache Spark, Microsoft SQL Server, Microsoft Power BI, Azure Databricks, Azure Data Factory, Azure Data Lake, Azure Synapse Analytics, Azure, Data Engineering, Data Architecture, Consulting, Azure Data Explorer

Senior Consultant - Data and BI

2013 - 2014
  • Designed end-to-end data integration and ETL pipelines to ingest data from various sources.
  • Wrote Microsoft SQL Server (SQL, TSQL, Stored Procedures) code for the BI reporting of a communications system for large, Australia-based enterprises.
  • Rewrote SQL queries to improve performance by more than 100% in some cases.
Technologies: Data Modeling, Big Data, Databases, SQL, Data Queries, SQL Server Integration Services (SSIS), T-SQL (Transact-SQL), Microsoft SQL Server, Data Engineering, Data Architecture, Consulting

Software Engineer

2002 - 2013
State Bank of Pakistan
  • Worked as part of the design-and-development team for credit eCIB (Credit Information Bureau). Primarily worked on Oracle SQL and PL/SQL technologies.
  • Developed and designed a system to maintain the inventory and drawing of the government's prize bonds scheme; I also traveled and deployed this system across all locations in the country.
  • Created a portal for employee-self services for the HR department. This portal was built using Oracle SQL, PL/SQL on the back end, PHP/Zend Framework at the application level, and HTML, CSS, JavaScript, jQuery, and Twitter Bootstrap on the front end.
  • Designed and programmed back-end databases for several projects using Oracle SQL and PL/SQL technologies.
Technologies: MacOS, HTML, Database Modeling, SQL DML, SQL DDL, Data Modeling, T-SQL (Transact-SQL), Linux, Windows, Oracle Forms & Reports, Python, CSS, JavaScript, Java, Oracle SQL, Oracle PL/SQL, Oracle, Databases, Data Queries, PHP, PL/SQL, SQL

Software Engineer

2000 - 2002
  • Wrote a utility using Oracle Forms APIs that opened, modified, compiled, and saved the Oracle Forms modules. This utility saved hundreds of hours of manual work for the company.
  • Worked as part of the development teams for various modules including accounts payable, accounts receivable, and inventory. Mainly worked on Oracle technologies including SQL, PL/SQL, and Oracle Forms and Reports.
  • Managed a small team of Oracle SQL and PL/SQL developers.
Technologies: Database Modeling, SQL DML, SQL DDL, Data Modeling, Windows, JavaScript, Java, Oracle PL/SQL, Oracle, Databases, SQL, Data Queries, Oracle Forms & Reports, PL/SQL, Oracle SQL, Data Engineering, Data Architecture

Database Developer

1998 - 2000
Fauji Software Company Islamabad
  • Developed Oracle database queries, forms, and reports for enterprise-scale projects.
  • Created a utility that automatically documented and created a data dictionary from underlying database objects.
  • Contributed to developing coding standards for the company's software development division.
Technologies: Data Modeling, Database Modeling, Oracle Reports, Oracle Forms, Oracle Forms & Reports, Oracle SQL, Oracle, PL/SQL, SQL

Global Common Data Model

Currently working with a well-reputed multinational brand on the initiative of building a common data platform that is implemented throughout its regional hubs across the world. This common data platform helps the consolidation of data globally and allows the lifting and shifting of reports and dashboards across regions.

User Authentication and Authorization System

I created a robust user authentication and authorization system that prioritizes security. By implementing industry best practices, I ensured that users can securely authenticate, authorize, and reset their forgotten passwords.

Electronic Credit Information Bureau (eCIB)

eCIB is a very large scale credit information database serving all commercial banks of Pakistan. This is the only credit information system governed by State Bank of Pakistan and commercial banks are required to use it before committing to any lending to consumer/corporate customers.

Microsoft Power BI Analytics Platform

I was part of the team that designed and implemented a complete business intelligence platform for a client. I had to take part in data modeling, database design, Power BI reports, and dashboards. This system is being used for customer engagement analytics.
1996 - 1999

Bachelor of Science Degree in Computer Science

Bahauddin Zakariya University - Multan, Pakistan

AUGUST 2021 - AUGUST 2022

Microsoft Azure Data Engineer Associate



Microsoft Certified Data Analyst (Power BI)


MAY 2019 - MAY 2022

AWS Certified Cloud Practioner

Amazon Web Services, Inc.


Orace Certified Application Developer 6/6i

Oracle Corporation


Sun Certified Programmer for Java 2 Platform

Sun Microsystems


Pandas, PySpark


Oracle Forms, Oracle Reports, Microsoft Power BI, PyCharm


SQL, SQL DDL, SQL DML, T-SQL (Transact-SQL), Java, Python, PHP, JavaScript, HTML, CSS, Python 3


Oracle, Azure Synapse Analytics, Azure, Databricks, Windows, Linux, Unix, MacOS, Azure SQL Data Warehouse, Dedicated SQL Pool (formerly SQL DW)


Database Development, ETL, Business Intelligence (BI)


PL/SQL, Oracle PL/SQL, Database Modeling, Databases, Microsoft SQL Server, Oracle SQL, Data Integration, Data Pipelines, SQL Server Management Studio (SSMS), SQL Server Integration Services (SSIS), SQL Server 2012


Apache Spark


Reporting, Database Schema Design, Data Analysis, Data Modeling, Data Queries, Data Engineering, Data, CSV File Processing, Performance Tuning, Data Analytics, Microsoft Azure, Azure Data Factory, Azure Databricks, Data Warehousing, Data Architecture, Data Migration, Data Management, Consulting, Azure Data Explorer, Oracle Forms & Reports, Integration, Big Data, User Authentication, Authorization, Azure Stream Analytics, Azure Data Lake, DAX

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