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Sayyid Mohammad
Hoseini

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Reputation
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Specialization
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Hourly rate
$15/hr
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About me
Expert SQL Server and Oracle DBA, Performance Tuning and Optimization -SQL Server & Oracle Database Administration -Query Performance Tuning & Optimization -Indexing Strategies & Execution Plan Analysis -SQL Profiler, DMVs, and Query Store for Troubleshooting -Database Security & User Access Management -T-SQL & PL/SQL Programming -Writing and Optimizing Stored Procedures, Functions, and Triggers -Window Functions & Complex Query Design -ETL Development & Data Integration (SSIS) -Database Schema Design & Normalization -Database Backup & Recovery Strategies -Profiler, Redgate, ApexSQL -Troubleshooting and Optimizing Large-Scale Databases (1TB+)

Work experience

Aris Rayaneh Co.
January 2004 – Current time
Job title
SQL Server Developer | Performance Tuning | Technical Expert
Work experience & achievements
For over two decades at Aris Rayaneh, I have contributed as a SQL Server Developer, Performance Tuning Specialist, and Technical Lead. I have designed and optimized enterprise-level databases, ensuring efficiency, scalability, and security. 🔹 Key Achievements: - Designed high-performance database architectures, optimizing indexing and query execution. - Led SQL Server performance tuning, troubleshooting bottlenecks with Redgate & ApexSQL tools. - Managed security policies, backup strategies, and disaster recovery solutions. - Developed ETL processes with SSIS and automated maintenance tasks using T-SQL & PowerShell. - Led product development, collaborating cross-functionally and implementing Agile methodologies. Skills: SQL Server, Query Optimization, T-SQL, ETL (SSIS), Redgate, ApexSQL, Security, Backup & Recovery, Agile Leadership. I specialize in transforming complex data challenges into high-speed, scalable solutions that drive business growth.
Medad Bakhtar Company
March 2020 – March 2021
Job title
Database Consultant | SQL Server Optimization Specialist
Work experience & achievements
As a Database Consultant at Medad Bakhtar Company, I optimized database performance, enhanced data integrity, and advised senior management on database strategies, focusing on the Billing System for the Power Administration. 🔹 Key Achievements: - Analyzed and optimized the Billing System database, improving efficiency and response time. - Optimized SQL queries, indexing strategies, and execution plans to resolve bottlenecks. - Advised the CEO on database security, backup strategies, and disaster recovery. - Led and mentored database administrators, enhancing their SQL Server expertise. Skills: SQL Server, Performance Tuning, Query Optimization, Security, SSIS, Redgate, ApexSQL, Backup & Recovery, Agile Leadership. I played a crucial role in improving database efficiency and aligning technical strategies with business needs.
Association of Expert Witnesses
October 2021 – Current time
Job title
Certified Judicial Expert | Computer & IT Specialist
Work experience & achievements
As a Certified Judicial Expert in Computer and IT, I provided forensic investigations, expert reports, and technical analysis for IT-related legal cases, supporting judges and legal teams with data-driven insights. 🔹 Key Achievements: - Analyzed IT disputes, cybersecurity incidents, and software failures for legal cases. - Delivered over 30 expert reports on digital forensics, SQL databases, and system security. - Conducted forensic investigations, ensuring compliance with judicial protocols. - Advised on IT compliance, data integrity, and cybersecurity best practices. Skills: Computer Forensics, SQL Analysis, Cybersecurity, Legal IT Consulting, Digital Evidence Evaluation, Compliance, Expert Witness Reporting. I played a key role in bridging technology and law, ensuring accurate technical assessments in judicial proceedings.

Education

Arak Islamic Azad University
Graduation year: 2007
Level of study
Bachelor
Major / Field of study
Computer Software Engineering