Slow databases? Production outages? Performance bottlenecks affecting your business? I help organizations identify root causes, optimize database performance, and build reliable database platforms.
I am a senior database administrator (DBA) with over 13 years of hands-on experience managing production database systems. I specialize in MySQL, MariaDB, PostgreSQL, SQL Server, MongoDB adn Oracle, providing database troubleshooting, incident response, daily operations and maintenance, performance optimization, and reliable backup, high availability, and disaster recovery solutions for mission-critical environments.
๐ Database Expertise:
With over 13 years as a senior expert in MySQL/MariaDB/Percona/PostgreSQL/MongoDB/Oracle/SQL Server/DuckDB, Iโve managed over 5000 databases and 300 TB+ of data. My experience covers database architecture, performance optimization, backup and recovery, High availability, disaster recovery, and much more. I ensure every database solution I deliver is robust, scalable, high performance, and perfectly aligned with your business needs.
๐ ๏ธ Technology Stack:
MySQL/Percona (Versions 5-9) MariaDB (Versions 5-12): InstallationใHigh Availability, Replication, and Scalability SolutionsใInnoDB ClusterใGroup ReplicationใWorkbench/Shell/RouterใBackup & RestoreใGalera ClusterใPercona XtraDB ClusterใXtraBackupใToolkitใInnoDB/MyISAM/BinlogใOrchestratorใreplication-manager.
PostgreSQL (Versions 7-18): InstallationใHigh Availability, Replication, and Scalability SolutionsใSQL Tuningใpgpool-IIใPostGISใTimescaleDBใClickHouseใPatroniใCitusใpgvectorใSecurityใSupabaseใNeon.
MongoDB (Versions 3-8) / MongoDB Atlas : InstallationใMongoDB Shell (mongosh)ใAggregationใIndexesใAtlasใTime SeriesใChange StreamsใReplicationใShardingใStorageใAdministrationใSecurity.
SQL Server (Versions 6.5 โ 2025): InstallationใHigh Availability and Disaster Recovery (Always On AG, FCI, Log Shipping, Replication)ใDistributed Availability GroupsใSQL Server Management Studio / Azure Data Studio / sqlcmdใBackup & RestoreใFailover Cluster / Always On SolutionsใPowerShell dbatools / First Responder KitใStorage Engine / Transaction Log / Change Data Capture.
Other Database : OracleใDB2ใRedisใSQLiteใDuckDBใDocumentDB
Cloud service providers: AWS RDSใAWS AuroraใAmazon DocumentDBใGCPใAzureใN8N creator.
Certifications: I hold certifications from Cisco, Oracle, MySQL, AWS, ITIL, PMP, and TOGAF, ensuring I bring industry-recognized expertise to every project.
๐ Why Choose Me?
Proven Experience: Worked for leading ICT and IoT solution providers, supporting major operators, banking, and financial enterprises.
End-to-End Solutions: From designing high availability architectures to delivering query optimizations and backup solutions, I offer complete database management expertise.
Training & Support: I also provide course training for companies looking to empower their teams with database-related skills.
๐ค Letโs Collaborate:
If youโre looking for a seasoned database professional to tackle challenges in MySQL, PostgreSQL, MongoDB, Oracle, or other database technologies, letโs discuss how I can help streamline your operations and enhance performance.
๐ฉ Contact Me:
Iโm ready to dive into your project. Reach out, and letโs unlock the full potential of your data infrastructure together!
PostgreSQL
MySQL
MariaDB
MongoDB
Microsoft SQL Server
Oracle
SQL
Database Optimization
MySQL Programming
Database Administration
Database Design
Query Tuning
Database Maintenance
Amazon RDS
PostgreSQL Programming
Muneer A.
Riyadh, Saudi Arabia
$15/hr
5.0
4 jobs
SQL Developer | Database Developer & Architect | Data Modeler | Performance Tuning | Data Migration | ETL Solutions | Data Warehouse
With over 10+ years of experience in database development, architecture, data modeling, and ETL solutions, I specialize in designing high performance, scalable database solutions.
What I Can Do for You:
โข Database Design & Development
โข Data Modeling (Conceptual, Logical, and Physical)
โข ERD (Entity Relationship Diagram) Design & Documentation
โข SQL Development & Advanced Query Optimization
โข Database Programming (Stored Procedures, Functions, Triggers, Views, and Database Objects))
โข Database Performance Analysis & Tuning
โข ETL Design, Development & Data Migration
โข Data Warehousing & Business Intelligence Solutions
โข Database Assessment, Troubleshooting, Normalization & Modernization
I have successfully delivered database and data solutions across multiple industries, including Banking, Education, Booking & Reservation Systems, ERP Solutions, Government Organizations, Large Scale Enterprise Systems, and Enterprise Applications.
Please provide me any existing documents; I will review them without cost . I can commence immediately, upon receipt of files and/or specifications, and typically provide either recommendations or a mock-up for review within 12 hours..
It would be my pleasure to work together and I will do my best to meet your expectations.
Best Regards,
Database Architecture
Database Modeling
Database Design
Database Development
Database Management
Oracle
Oracle PLSQL
PostgreSQL
Microsoft SQL Server
MySQL
NoSQL Database
SQL
ETL
SQL Server Integration Services
TIBCO ActiveMatrix BusinessWorks
UML Diagram
Informatica
Data Migration
Supabase
Nagaraju B.
Hyderabad, India
$28/hr
4.3
188 jobs
๐น My Objective: Deliver Quick, Efficient Solutions with a Focus on Client Satisfaction.
๐น Expert on Microsoft .Net/Angular/MVC/SQL SERVER/DBA/SSIS/SSRS/SSAS/AZURE
๐น Expert on BI Reporting-PowerBI/Tableau/ZOHO Analytics/Databox/SAP Crystal Reports
๐น Strong R&D Skills & ability to quickly adapt to new technologies
๐น Over 15 years of experience on Microsoft Technologies
โก ABOUT ME โฌ
I am a seasoned technology professional with over 17 years of experience and working as FULL TIME FREELANCER, specializing in Microsoft .Net/Angular/MVC/SQL Server and BI Reporting and working as a MS SQL Server database/BI Developer and Experience in developing the MSBI (SSIS, SSRS, SSAS) applications. Also, Expert on BI Reporting(PowerBI/Tableau/ZOHO Analytics/Databox), MS SQL Server Optimization/Performance Tuning/Replication/Clustering/High Availability, ETL/Data Warehouse(DW) design/development, MS Excel/VBA/Access. Also, Experience on Cloud Microsoft AZURE VM/SQL Server/SQL Managed Instance administration and maintenance, Migration on-premises to Azure, optimization of resources and cost reduction.
โก SKILLS EXPERTISE โฌ
โ - .Net desktop and web applications development using angular/MVC
โ - SQL Server Database Architecture/Design/T-SQL development/DBA
โ - Performance tuning- Server performance (settings/configurations)
โ - Performance tuning- Scripts performance (Scripts/Stored procedures/views/functions)
โ - Automatization of T-SQL Scripts to optimize the manual process
โ - Extract, Transform & Load (ETL) - SSIS (development,maintenance/troubleshooting)
โ - SSRS (developing reports,maintenance/troubleshooting)
โ - SSAS (developing multi dimensional/tabular cubes,maintenance/troubleshooting
โ - AZURE portal maintenance/VMโs creation/SQL MI serverโs/Maintenance
โ - Migrating servers from on premises to AZURE cloud environment
โ - Migrating old databases versions to latest versions
โ - PowerBI/Tableau/ZOHO Analytics/Databox/SAP Crystal Reports/Excel/VBA/Access
โ - Database Maintenance, 24/7 Monitoring Support
โ - Quick grasping of new products and adaptation to new environment
โ - Ability to learn new technologies and deliver high quality services and tasks
โก TECHNOLOGIESโฌ
โ - Operating Systems :- Windows Server 2008/2012/2016/2019/2022
โ - Databases :- Microsoft SQL Server versions from 2008R2 to SQL2022
โ - Microsoft Business Intelligence :- SSIS,SSAS,SSRS,Master Data Services(MDS), Power BI
โ - Programming Languages :- VB, VB.Net, C#. Net
โ - Tools :- JIRA,TFS , VSS, MS Office tools, GitHub
Microsoft SQL Server
Microsoft Power BI
SQL Server Integration Services
Microsoft SQL Server Administration
Microsoft Azure
Microsoft SQL SSAS
Data Warehousing
Database Administration
Microsoft Power BI Data Visualization
Microsoft Power BI Development
Microsoft Azure SQL Database
Microsoft Azure Administration
Performance Optimization
Transact-SQL
Python
Looker
Looker Studio
Tableau
Microsoft Power Automate
Microsoft PowerApps
Rizwana B.
Pune, India
$30/hr
5.0
50 jobs
Oracle :
- Having rich experience in Oracle Database Installation, upgrades.
- install and setup high availability e.g. RAC , DG , GG
- Rich experience in migration from one platform to another .\
- Rich experience in migration from on-prem to AWS/Oracle cloud .
- Experience in AWS DMS
- Setup the backup and recovery standards.
- DB and query tunning.
- troubleshoot performance issues
- Automation using shell/batch/python scripting
- debugging users issues .
- Automate repetitive task using python/shell/batch script.
- Having fair hands on automation using Ansible for Oracle DBA repetitive task.
Migration:
===========
- Oracle EE/SE to postgres AWS RDS using AWS SCT & DMS services
- Oracle EE/SE to Oracle Cloud using datapump.
- Oracle EE/SE to MariaDB using Goldengate.
- Migration from one platform to another platform
- Migration from oracle to databriks
Automation:
good in shell scripting , batch , python and ansible.
recently completed oracle grid and rdbms installation automation using Ansible .
Good experience in upgrades and performance tunning. Experience DBA devops and automation expertise.
Postgres :
=======
- Installation, upgrade minor and major
- AWS Auroa RDA - postgres
- troubleshooting
- performance analysis
Replication:
Using golden gate
Shareplex
Debezium log miner and Openlogreplicator
Database Administration
Linux
Amazon RDS
Oracle RAC
Oracle Upgrade
Oracle Data Guard
Oracle Database Administration
Cloud Migration
Performance Optimization
Usman U.
Lahore, Pakistan
$30/hr
5.0
39 jobs
Stop overpaying for cloud resources and struggling with slow queries. I help companies achieve ๐๐.๐๐% ๐ฎ๐ฉ๐ญ๐ข๐ฆ๐ and ๐๐ง๐ญ๐๐ซ๐ฉ๐ซ๐ข๐ฌ๐-๐ ๐ซ๐๐๐ ๐ฌ๐๐๐ฎ๐ซ๐ข๐ญ๐ฒ for their most mission-critical data.
๐Top Rated Plus Freelancer
๐Elite SQL Optimization & Scalable Data Architecture Specialist
๐ฅWorked 9000+ hours with a 100% Job Success Score
โ Expert Microsoft SQL Server | MySQL | Cloud Database Architect | Query Optimization | Azure | GCP | AWS | ETL & Data Warehousing | Big Data | High Availability | DevOps for Databases
๐๐ง๐ญ๐ซ๐จ๐๐ฎ๐๐ญ๐ข๐จ๐ง:-
I'm Usman, a ๐๐จ๐ฉ ๐๐๐ญ๐๐ ๐๐ฅ๐ฎ๐ฌ ๐๐๐ญ๐๐๐๐ฌ๐ ๐๐๐ฆ๐ข๐ง๐ข๐ฌ๐ญ๐ซ๐๐ญ๐จ๐ซ ๐๐ง๐ ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐๐ซ with over ๐๐ ๐ฒ๐๐๐ซ๐ฌ ๐จ๐ ๐ก๐๐ง๐๐ฌ-๐จ๐ง ๐๐ฑ๐ฉ๐๐ซ๐ข๐๐ง๐๐ in SQL Server, MySQL, and PostgreSQL. I specialize in architecting scalable, cloud-native data ecosystems that power high-growth SaaS, ERP systems, and global eCommerce platforms.
I bring a rare blend of deep technical knowledge, enterprise-level implementation experience, and long-term client trust, having worked 9000+ Upwork hours with a 100% Job Success Score.
๐ด๐ ๐ ๐๐๐๐๐๐๐ ๐๐๐๐๐๐๐๐๐ ๐๐๐๐๐ ๐๐๐๐๐๐:
โก Enterprise-grade ๐๐๐ ๐๐๐ซ๐ฏ๐๐ซ ๐๐ง๐ ๐๐ฒ๐๐๐ ๐๐๐ฆ๐ข๐ง๐ข๐ฌ๐ญ๐ซ๐๐ญ๐ข๐จ๐ง.
๐ Advanced ๐ช๐ฎ๐๐ซ๐ฒ ๐ฉ๐๐ซ๐๐จ๐ซ๐ฆ๐๐ง๐๐ ๐ญ๐ฎ๐ง๐ข๐ง๐ , ๐ข๐ง๐๐๐ฑ๐ข๐ง๐ , ๐๐ง๐ ๐ฌ๐ญ๐จ๐ซ๐๐ ๐ฉ๐ซ๐จ๐๐๐๐ฎ๐ซ๐ ๐จ๐ฉ๐ญ๐ข๐ฆ๐ข๐ณ๐๐ญ๐ข๐จ๐ง.
โ๏ธ Cloud database deployments, migrations, and administration on ๐๐ณ๐ฎ๐ซ๐, ๐๐จ๐จ๐ ๐ฅ๐ ๐๐ฅ๐จ๐ฎ๐ (๐๐๐), ๐๐ง๐ ๐๐๐ ๐๐๐.
๐ ๐๐๐ development using SSIS, Power BI, and modern data warehousing strategies.
๐ Data integrity, backup/restore, disaster recovery planning, and replication. Zero-Trust data access, Row-Level Security (RLS), and ๐๐ง๐ฌ๐ฎ๐ซ๐ข๐ง๐ ๐๐๐๐๐/๐๐๐๐ ๐๐จ๐ฆ๐ฉ๐ฅ๐ข๐๐ง๐๐.
๐ Implementing ๐๐/๐๐ ๐ฉ๐ข๐ฉ๐๐ฅ๐ข๐ง๐๐ฌ ๐๐ง๐ ๐๐๐ฏ๐๐ฉ๐ฌ ๐ฉ๐ซ๐๐๐ญ๐ข๐๐๐ฌ for scalable, automated database releases.
๐ Monitoring & alerts using tools like ๐๐ณ๐ฎ๐ซ๐ ๐๐จ๐ง๐ข๐ญ๐จ๐ซ, ๐๐๐ฐ ๐๐๐ฅ๐ข๐, ๐๐ง๐ ๐๐๐ ๐๐ซ๐จ๐๐ข๐ฅ๐๐ซ.
๐ ๏ธ Real-time support for ๐ก๐ข๐ ๐ก-๐๐ฏ๐๐ข๐ฅ๐๐๐ข๐ฅ๐ข๐ญ๐ฒ architecture, ๐ฆ๐ข๐ซ๐ซ๐จ๐ซ๐ข๐ง๐ , ๐๐ง๐ ๐ฅ๐จ๐๐ ๐๐๐ฅ๐๐ง๐๐ข๐ง๐ .
Iโve designed and optimized databases that power high-traffic SaaS products, ERP systems, and eCommerce platforms โ handling billions of records and complex business logic while maintaining peak performance.
My approach is simple: ๐ฎ๐ง๐๐๐ซ๐ฌ๐ญ๐๐ง๐ ๐ญ๐ก๐ ๐๐ฎ๐ฌ๐ข๐ง๐๐ฌ๐ฌ ๐ฎ๐ฌ๐ ๐๐๐ฌ๐ ๐๐ข๐ซ๐ฌ๐ญ, then align data systems that are scalable, secure, and easy to maintain. Whether you need to:
โ Fix slow queries
โ Scale your infrastructure to handle growth
โ Migrate from legacy systems
โ Modernize your stack with cloud-native tools
โ Automate your reporting & data pipelines
๐๐๐ฌ๐ญ๐ข๐ฆ๐จ๐ง๐ข๐๐ฅ๐ฌ:-
โจ"Experienced professional developer, very skilled. I can recommend him and I will use him again."
โจ "Usman is very knowledgeable and very skilled with SQL and Windows Server. I can recommend him and I will use him again."
โจ "Usman is an experienced SQL Developer. He helped with merging, changing, and fine-tuning queries. Good quality work."
โจ "Usman delivered good work. He had solutions to the project issues, and his skills were reasonably strong.
I enjoyed working with Usman and will likely have additional work for him."
โจ "The stored procedure was delivered as expected. Thank you so much, Usman, for a job well done (and quick)!"
โจ "Usman delivered an amazing script to help us back up and restore our database. This automation will be a huge time-saving improvement to our manual process. Thank you, Usman, for a job well done."
๐๐๐ซ๐ญ๐ข๐๐ข๐๐๐ญ๐ข๐จ๐ง๐ฌ:
* ๐ช๐๐๐๐๐๐๐๐ ๐ด๐๐๐๐๐๐๐๐ ๐ป๐๐๐๐๐๐๐๐๐ ๐จ๐๐๐๐๐๐๐๐ (๐ด๐ป๐จ) ๐๐ ๐ซ๐๐๐๐๐๐๐ ๐จ๐ ๐๐๐๐๐๐๐๐๐๐๐๐ ๐ญ๐๐๐ ๐๐๐๐๐๐๐๐
* ๐ช๐๐๐๐๐๐๐๐ ๐ด๐๐๐๐๐๐๐๐ ๐ป๐๐๐๐๐๐๐๐๐ ๐จ๐๐๐๐๐๐๐๐ (๐ด๐ป๐จ) ๐๐ ๐ต๐๐๐๐๐๐๐๐๐ ๐ญ๐๐๐ ๐๐๐๐๐๐๐๐
I can deliver fast, clean, and reliable results on time and within scope.
๐จ ๐๐๐ญโ๐ฌ ๐ญ๐๐ฅ๐ค about how I can add value to your team or project. I'm available for consulting, long-term support, or complex one-off problem-solving.
Database Development
Database Optimization
Database Administration
SQL
Microsoft SQL Server
Database Architecture
Query Optimization
MySQL
Transact-SQL
SQL Server Reporting Services
Database Maintenance
ETL
Query Tuning
Performance Optimization
Microsoft Azure SQL Database
Microsoft SQL Server Administration
Stored Procedure Development
Microsoft SQL Server Reporting Services
Microsoft SQL Server Programming
Database Management
Ryan K.
Phoenix, Arizona
$120/hr
5.0
436 jobs
โ TOP RATED Consultant on UpWork | *100% Client Recommendation Score*
My name is Ryan, and I am one of Upwork's highest rated SQL Server DBA (Database Administrator) and Developers. I've worked with numerous companies on projects including database administration, optimization, performance tuning, automation, and SQL programming. If you are having a database issue, you have come to the right place for help.
Unlike other database professionals, I am able to effectively communicate to understand your business needs and technical architecture in order to meet your deliverables.
I keep my high Job Success Score and Five-Star Feedback rating by accepting only the jobs I know myself to be the best person for. If I'm not completely confident in delivering you the perfect job, I'll let you know and steer you in the right direction.
Thank you for reading this far, and I look forward to discussing your project together.
Technical Skills: Twelve (12) years of experience in SQL Server versions from 2005-2022, and over 7 years working with Azure and AWS.
Certifications:
โข MCA: Microsoft SQL Server Systems AI-Enabled Database Solutions
โข MCSE: Microsoft SQL Server Systems Expert Data Platform
โข MCSA: Microsoft SQL Server Certified Solutions Associate
โข MCITP: Microsoft SQL Server Database Administrator
โข MCITP: Microsoft SQL Server Business Intelligence Developer
โข MCSA: Microsoft SQL Server Certified Solutions Associate
SQL
Microsoft SQL Server
Microsoft SQL Server Programming
Microsoft SQL Server Administration
Microsoft Azure SQL Database
SQL Server Integration Services
Database Optimization
Transact-SQL
Microsoft SQL Server Reporting Services
Microsoft SQL SSAS
Database Management
Amazon RDS
Microsoft Azure
SQL Programming
Database Maintenance
Database Architecture
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