You will get a postgresql, mysql, ms sql and sql queries
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Project details
As a seasoned database developer with 4+ years of experience, I specialize in working with Big Data, data visualization, and relational SQL databases. I possess the ability to craft queries for various platforms including MySQL, SQL Server, PostgreSQL, SQLite, and Oracle (SQL PLUS). Whether you require assistance in fixing existing queries, developing new ones to suit your business or technical requirements, or optimizing database schema designs, I am equipped to address all your SQL-related needs.
My expertise extends to:
MySQL Queries
SQL Server Queries
PostgreSQL Queries
SQLite Queries
Formulating Oracle Queries (SQL PLUS)
Fixing existing queries
Generating new queries tailored to your specific business or technical logic
Offering guidance on novel approaches and modeling to enhance table schemas
If you have any custom requests related to database schema design or require assistance with SQL-related tasks, feel free to reach out. I am dedicated to providing comprehensive solutions to meet your requirements.
My expertise extends to:
MySQL Queries
SQL Server Queries
PostgreSQL Queries
SQLite Queries
Formulating Oracle Queries (SQL PLUS)
Fixing existing queries
Generating new queries tailored to your specific business or technical logic
Offering guidance on novel approaches and modeling to enhance table schemas
If you have any custom requests related to database schema design or require assistance with SQL-related tasks, feel free to reach out. I am dedicated to providing comprehensive solutions to meet your requirements.
Database Type
MySQL, MS SQL, MS Access, Oracle, SQLite, PostgreSQL, MongoDB, Couchbase, TeradataWhat's included
| Service Tiers |
Starter
$100
|
Standard
$250
|
Advanced
$500
|
|---|---|---|---|
| Delivery Time | 1 day | 1 day | 2 days |
Number of Revisions | 0 | 0 | 0 |
Number of Queries | 10 | 20 | 26 |
Query Debugging | |||
Query Optimization | - | ||
Query Scheduling | - | ||
Query Analysis | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$70
Additional Query
(+ 1 Day)
+$50
26 reviews
(26)
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FI
Faizul I.
Feb 21, 2026
Full-Time Web Scraping Specialist | Expert in Scrapy, Playwright & LLM Integration
Good Luck, He is good developer but we hired someone else
Thank you
Thank you
SK
Sam K.
Feb 4, 2026
SSIS Developer Needed to Build CRM → PostgreSQL ETL
I hired Umar as a freelancer to migrate a large and complex CRM dataset into PostgreSQL, including Accounts, Contacts, Leads, Opportunities, Opportunity Products, Products, Partners, Activities, Invoices, and Campaigns.
He successfully handled over one million records with impressive speed and accuracy, completing the migration without any data loss. The database schema was thoughtfully designed, all relationships were preserved correctly, and overall performance exceeded expectations. His expertise in data modeling, ETL processes, and PostgreSQL optimization was evident throughout the project.
Communication was excellent from start to finish, and he was proactive in validating data and resolving issues efficiently. This was a challenging migration, and he executed it smoothly and professionally.
I would absolutely hire him again and highly recommend him to anyone looking for CRM data migration, large-scale data processing, or PostgreSQL expertise.
He successfully handled over one million records with impressive speed and accuracy, completing the migration without any data loss. The database schema was thoughtfully designed, all relationships were preserved correctly, and overall performance exceeded expectations. His expertise in data modeling, ETL processes, and PostgreSQL optimization was evident throughout the project.
Communication was excellent from start to finish, and he was proactive in validating data and resolving issues efficiently. This was a challenging migration, and he executed it smoothly and professionally.
I would absolutely hire him again and highly recommend him to anyone looking for CRM data migration, large-scale data processing, or PostgreSQL expertise.
RB
Rick B.
Aug 9, 2025
Estimation Spreadsheet - Reverse Engineering
SH
Shavez H.
Apr 27, 2025
SQL and Power BI Task Breakdown and Explanation
AS
Adil S.
Feb 24, 2025
Data analyst help
If you guys need any help with understand data analysis work please go to Umar
About Umar
Data Engineer | Web Scraping, ETL & SSIS Pipelines | Fabric, SQL
100%
Job Success
Islamabad, Pakistan - 6:10 pm local time
I'm Umar Ali, a Microsoft Certified Data Engineer (DP-600 & DP-700) with 3.5+ years of hands-on experience designing, building, and optimizing enterprise-grade data infrastructure. I specialize in Microsoft Fabric, end-to-end ETL pipeline development, and Python automation, helping businesses transform raw, siloed data into clean, reliable, actionable insights at scale.
My work spans the full data engineering stack. I've architected Lakehouse and Data Warehouse solutions on Microsoft Fabric using Bronze/Silver/Gold medallion architecture, built automated ETL pipelines using SSIS and Python, and designed complex SQL queries on SQL Server and PostgreSQL to cut query runtimes significantly. I develop scalable PySpark jobs for large-scale data processing, and build production-ready web scraping pipelines using Selenium, Scrapy, and BeautifulSoup, including a live pipeline that scrapes, deduplicates, and normalizes job postings across 6 sources (Indeed, Glassdoor, Dice, ZipRecruiter, SimplyHired, and more) using fuzzy matching and pgvector similarity search, orchestrated in Airflow with real-time monitoring. I also develop REST APIs with FastAPI and Flask for seamless data integration and workflow automation.
Whether you need Azure data engineering, a data warehouse migration from SQL Server to the cloud, a high-performance Python ETL pipeline, or a Microsoft Fabric analytics implementation, I bring both the technical depth and business context to deliver results. Every solution I build is clean, documented, testable, and built for long-term scalability.
Microsoft Certified (DP-600 Fabric Analytics Engineer · DP-700 Fabric Data Engineer) · Strong communication · On-time delivery · Production-ready code.
Looking for a Data Engineer, Microsoft Fabric Expert, ETL Developer, Python Developer, or SQL Specialist? Let's connect, message me and we'll scope your project today.
Steps for completing your project
After purchasing the project, send requirements so Umar can start the project.
Delivery time starts when Umar receives requirements from you.
Umar works on your project following the steps below.
Revisions may occur after the delivery date.
Check the database