You will get High-Quality Database Design and Complex SQL Queries Delivered Quickly
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Project details
Hi, Are you looking for a database developer? If yes then you are at the right place.
I'm passionate about databases. I am a professional database designer having experience in the following RDBMS:
✪ Microsoft SQL Server
✪ MySQL & MariaDB
✪ Oracle( SQL plus)
✪ Postgres
I can help you with a different kinds of database tasks:
✪ Database Designs For OLTP and OLAP
✪ Data Modeling and Dimensional Modeling
✪ Entity Relationship Diagram (ERD / EERD), Star/Snowflake/Galaxy Schema
✪ Normalization(1NF, 2NF, 3NF, BCNF, 4NF, 5NF) and De-normalization
✪ Logical Database Model (Transformation of ERD To Relational Diagram)
✪ DDL, DML, DQL, TCL
✪ SQL, T-SQL, PL/SQL, PL/pgSQL
✪ SQL Complex Queries, Joins, Views, Stored Procedures, Functions
✪ SQL Server DBA
Why Choose me?
✔️ I'm passionate about databases and enjoy working with data.
✔️ Client Satisfaction is my priority, and I focus on providing value to all of my clients and earning their trust.
✔️ 100% Quality Work, On-Time, and Over-Delivering. Giving more than what clients expect to receive.
✔️ Free Consultation through (Online Zoom Meeting or Google Meet)
✔️ I always prefer long-term relations.
✔️PLEASE CONTACT ME BEFORE ORDERING ✔️
I'm passionate about databases. I am a professional database designer having experience in the following RDBMS:
✪ Microsoft SQL Server
✪ MySQL & MariaDB
✪ Oracle( SQL plus)
✪ Postgres
I can help you with a different kinds of database tasks:
✪ Database Designs For OLTP and OLAP
✪ Data Modeling and Dimensional Modeling
✪ Entity Relationship Diagram (ERD / EERD), Star/Snowflake/Galaxy Schema
✪ Normalization(1NF, 2NF, 3NF, BCNF, 4NF, 5NF) and De-normalization
✪ Logical Database Model (Transformation of ERD To Relational Diagram)
✪ DDL, DML, DQL, TCL
✪ SQL, T-SQL, PL/SQL, PL/pgSQL
✪ SQL Complex Queries, Joins, Views, Stored Procedures, Functions
✪ SQL Server DBA
Why Choose me?
✔️ I'm passionate about databases and enjoy working with data.
✔️ Client Satisfaction is my priority, and I focus on providing value to all of my clients and earning their trust.
✔️ 100% Quality Work, On-Time, and Over-Delivering. Giving more than what clients expect to receive.
✔️ Free Consultation through (Online Zoom Meeting or Google Meet)
✔️ I always prefer long-term relations.
✔️PLEASE CONTACT ME BEFORE ORDERING ✔️
Database Type
MySQL, MS SQL, MS Access, Oracle, SQLite, PostgreSQL, MongoDB, Couchbase, Azure Cosmos DBWhat's included
| Service Tiers |
Starter
$500
|
Standard
$1,000
|
Advanced
$1,500
|
|---|---|---|---|
| Delivery Time | 3 days | 10 days | 21 days |
Number of Revisions | 0 | 0 | 0 |
Number of Tables Added | 5 | 10 | 15 |
Schema Diagram | |||
Permissions Setup | - | ||
Import/Export Data | |||
Admin Panel Setup | - | - |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$20 - $200
22 reviews
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GR
Greg R.
Dec 10, 2025
Azure Data Factory Expert Needed for Data Transformation in Healthcare
Sajawal is an excellent contractor with expert knowledge in Databricks and data engineering. I highly recommend his services and we served as an integral part of the team.
JM
James M.
Feb 10, 2025
Senior Data Engineer
Sajawal was great to work with. He was very thorough and professional.
TZ
Thomas Z.
Dec 21, 2024
30 minute consultation
JM
James M.
Nov 5, 2024
Data Engineer to integrate multiple data sources into Azure database
We have been hugely impressed with Sajawal's expertise and commitment to achieving the best outcomes when structuring our data warehouse and building our pipelines. Not only is Sajawal extremely knowledgeable he is also very process driven and he proactively organised us to adopt agile ways of working to ensure all actions are noted down, assigned to a project and acted on. I would highly recommend him to anyone considering him for data engineering role.
CB
Carlos B.
Sep 29, 2024
c60 Data Engineering
Sajawal is a highly skilled Azure data engineer and a consummate professional. He was able to quickly integrate and bring value to his projects and well appreciated by his team mates. Would definitely work with Sajawal again in the future.
About Sajawal
AI Data Engineer | Databricks & Snowflake Engineer | Azure & AWS
100%
Job Success
Islamabad, Pakistan - 9:05 am local time
Are you looking to make data-driven decisions and improve your business processes?
Let's work together to unlock the power of your data and turn it into actionable insights for your business. As a data professional with 7+ years of experience building data pipelines and Lakehouse architectures on Azure, Aws and Databricks, mostly for healthcare and e-commerce clients, though I've worked across fintech and supply chain too. ADF / Databricks workflows for orchestration, Delta Lake for storage, Unity Catalog for governance.
Some clients come with a greenfield project: a new Lakehouse to design, a pipeline to build from scratch, a migration off on-prem into Azure or Aws. Others come with something broken that needs fixing. Either way, I've done both enough times across healthcare, e-commerce, fintech, and supply chain to know what works and what doesn't.
What I've built for clients:
🏥 Healthcare: Inherited years of fragmented EMR data with no reliable reconciliation. Built a bronze-silver-gold Databricks Lakehouse with composite key design and a daily Delta Lake MERGE-based reconciliation framework. Reduced pipeline processing time by 80% and cleared a multi-year backlog the previous system couldn't handle.
🛒 E-commerce: Unified fragmented sales and marketing data from Shopify, HubSpot, and Google Analytics into a single Delta Lake. The business finally had a clean, trusted view of customer behaviour, sales trends, and campaign performance they could actually make decisions from.
🏦 Mortgage/Fintech: Terabytes of mortgage documents flowing in from 10+ lenders, each with their own XML schema that drifted without warning. Designed a canonical schema layer with versioned per-source mappings so schema changes upstream never broke downstream pipelines. Built on Azure Data Factory and Azure Data Lake at scale.
My core stack:
Databricks (Delta Lake, Unity Catalog, Databricks SQL) · Apache Spark · PySpark · SparkSQL · Microsoft Fabric · Azure Data Factory · Azure Synapse · ADLS · Python · SQL
Available for fixed-price projects and long-term retainers. If you know what you need to build, let's talk scope. If you're still figuring it out, I'm happy to start there too.
Steps for completing your project
After purchasing the project, send requirements so Sajawal can start the project.
Delivery time starts when Sajawal receives requirements from you.
Sajawal works on your project following the steps below.
Revisions may occur after the delivery date.
Step 01- Requirements Review
After reviewing the requirements I will confirm with you whether all guidelines and instructions are good to start the work or not.
Step 02 - Requirements Finalisation
After completing the requirements analysis I will make some business rules, guidelines, instructions to help understand the big picture of project