I’m a PostgreSQL-focused database consultant with hands-on experience working on production systems, mainly around performance tuning, troubleshooting, and high availability. I’ve worked with read/write heavy workloads, where I’ve helped improve query performance, reduce load, and stabilize systems by optimizing queries, indexes, and configurations. I also have experience handling real production issues such as locking, slow queries, and I/O bottlenecks. On the infrastructure side, I’ve set up and managed replication and HA environments (Patroni/EFM), along with backup and recovery strategies including PITR and restore validation. I’ve also worked on database migrations (Oracle to PostgreSQL) using tools like Ora2Pg, FDW, and GoldenGate. Alongside PostgreSQL, I have experience with MSSQL, Oracle, and MySQL, mainly around performance tuning, backup/recovery, and administration. I focus on practical solutions—whether it’s fixing a slow query, stabilizing a production system, or helping improve overall database performance.

I'm an IT enthusiast with over a decade of experience in the ever-evolving software development field. My journey in IT has been nothing short of thrilling, filled with learning, challenges, and immense satisfaction. What excites me the most? Diving deep into the world of SAP ABAP. It's where I bring my passion for problem-solving to life, crafting solutions that not only meet but exceed expectations. Outside of work, you'll likely find me exploring the latest tech trends, sharing knowledge with fellow tech lovers, or unwinding with a good book. Let's connect and share our experiences in this incredible journey of technology!

1) - - Troubleshoot complex database performance issues across enterprise environments - Analyze SQL query performance, execution plans, and optimizer behavior - Perform root cause analysis for critical production incidents (locks, deadlocks, hangs) - Work extensively with AWR, ASH, ADDM and other Tools for performance diagnostics - Investigate data inconsistencies and “wrong results” scenarios - Support multitenant architectures and high-load systems - Collaborate with global teams and business stakeholders to resolve critical issues - Provide technical solutions and action plans for performance optimization ➢ Performance assessments and tuning for query slow performance which used to run good. ➢ Diagnosing Query plan change and providing solution to fix the plan. ➢ Analyzing System State Dump, 10053 Optimizer Trace, 10046 Sql Trace, and Hang Analyze reports. ➢ Preparing KM documents related to any major Issues, doing root cause analysis in case of any failures. ➢Identify, resolved, or provided recommendations to other different kinds of the performance problems ranging from Database performance problems. ➢ Performance tuning for complex databases and optimizing the application utilization for end users ➢ Troubleshooting Wrong Result Issues ➢ Database and Applications Performance Tuning ➢ Troubleshooting using AWR and ASH reports ➢ Troubleshooting Baseline issues ➢ Troubleshooting Sysaux Space issue ➢ Filling Quality Bug ➢ Processing the Patch request. ➢ Simulating test case in Oracle Development box. TECHNICAL SKILLS: - SQL (advanced: performance tuning, execution plans, data analysis) - Oracle Database (AWR, ASH, ADDM, optimizer) - PL/SQL, data processing, query optimization - Data analysis & troubleshooting - Python (basic) - Data Warehousing concepts - Multitenant architecture 2) Technologies: Oracle PL/SQL, Microsoft SQL Server 2012, PostgreSQL, SQL Server Reporting Services (SSRS) - Developed and maintained database solutions using Oracle PL/SQL and Microsoft SQL Server, including stored procedures, functions, triggers, and packages. - Designed, implemented, and optimized complex SQL queries and database objects to support business applications and reporting requirements. - Migrated business logic and database components between Oracle and SQL Server environments. - Analyzed business requirements and translated functional specifications into technical solutions. -Improved database performance through query optimization, SQL tuning, execution plan analysis, and profiling tools. - Developed and maintained reporting solutions using SQL Server Reporting Services (SSRS). - Supported data integration, migration, and reconciliation processes across multiple systems. - Collaborated with business analysts, developers, and stakeholders to deliver high-quality database solutions. - Participated in Agile (Scrum) development teams, contributing to sprint planning, daily stand-ups, reviews, and retrospectives. - Provided production support, troubleshooting, and performance monitoring for critical business applications. 3) Provide technical expertise in the areas of database administration on Oracle, SQL Server • Manage standard DBA tasks, managing space, monitoring performance, installing patches. • Provide client consulting and planning guidance as applicable for moderate to complex projects • Participate in and provides consulting to project teams on architectural, design development, integration opportunities, planning of complex systems.

Professional Summary: Database Developer having 6 years of experience in IT industry with excellent knowledge in database development concepts. Technical Summary: * Good Analytical skills in Oracle 11g. * Expertise in using tools such as SQL Developer. * Expertise in creating Tables, Constraints, Views, Indexes,Sequences and Synonyms. * Experience in using Analytical and Aggregate functions in SQL. * Experience in using Sub-Query and Joins in SQL. * Experience in PL/SQL Anonymous blocks, Cursors,Procedures, Functions, Exceptions. * Experience in using PL/SQL Collections, Bulk Collect. * Knowledge in Performance Tuning of Queries, Triggers, GTT, Materialized view, SQL loader. * Good knowledge in all phases of SDLC. * Knowledge in BIRT Tools

Hi, I’m Kevin. I help healthcare organizations and businesses fix their toughest IT issues — whether it's a SQL Server running slow, an Azure migration that needs cleanup, or automating repetitive tasks with PowerShell scripts. I've been doing this for over 25 years, 15 in healthcare, and still love diving into tricky problems and getting systems humming again. I can also work with the many uses of Python scripting to do just about anything. ETL as well.

Hi, My Name is Saabir and I'm a freelance BI/Talend/SQL Developer. I've got 10 years of experience in BI/Talend ETL/SQL Database development. My Technology Stack :- ETL Tools : Talend, Airflow. Data Visualization Tools : Metabase, Klipfolio, SSRS. Databases : Oracle, MS SQL, MySQL/MariaDB, PostgreSQL, Redshift (Query). Programming: CGI-Perl, Python Methodology : Agile Scrum The Domains I've worked on :- Insurance, Workforce Management, Telecom, Customer education, CRM (ACT!). Many Thanks, Saabir

Hello, I’m Mohamed Kamel, the Founder and CEO of VertiSolutions, a company dedicated to providing innovative software solutions tailored to your business needs. With over seven years of experience in digital transformation and ERP implementation, I specialize in helping businesses streamline their operations and achieve their goals through cutting-edge technology. At VertiSolutions, we offer a range of services including: ERP Implementation (Oracle, Odoo, SAP): Streamline your business processes with integrated ERP solutions. Custom Software Development: Tailored applications designed to fit your unique business operations. Cloud Infrastructure: Scalable cloud services that ensure flexibility and growth. IT Consulting and Support: Expert advice and ongoing support to keep your systems running smoothly. Business Software Integration: Seamless integration of various software systems to create a unified digital ecosystem. Our mission is to create custom, scalable, and secure solutions that drive efficiency and innovation. Whether you're looking to transition from manual operations to a fully digital platform or need expert guidance on your next big project, we’re here to help. Let’s discuss how we can support your business in its digital transformation journey. Reach out today to start the conversation!

Worked in IT field from 1995 to current on various technologies like Power BI, MS Access, VB 6, SQL Server, C, Python, Tableau, SSIS, SSRS, SSAS, UML Diagrams, ADF, Azure Data Bricks, Azure Data Lake and worked as a Data Architect as well as Azure Data Engineer. Since last 8 years I was working on Data warehousing with tools like Microsoft Business Intelligence (MSBI) , SSIS, SSAS, Power BI, Data Visualization, Sentiment Analysis and Data Analysis/Data Mining I am very professional with Database Design, Logical and Physical, ER Diagram in Relational Database and Dimensional Modeling (Star schema, Snowflake schema, Galaxy Schema) in Business Intelligence/Data warehousing / Data Mining. I have been trained in Azure ML for 6 months. I have worked on finding hidden patterns in Data (Datamining)

I have been in the IT industry for over a decade and have worked with numerous customers in different verticals of the business ranging from Finance, Sales, Manufacturing, and Relocation industries. My primary area of expertise is to help customers achieve their long-term Data Analytics needs using both On-premises/Modern Cloud based technologies and services. Please feel free to reach out or schedule a call. SKILL SET Proficient in Data Solution Architecture, Data Engineering Orchestration, Data Warehouse Architecture and Business Intelligence methodologies and solutions. AWS Cloud BI Services: Data Lake, S3, Redshift, Kinesis, AWS Glue, AWS Athena. Azure Cloud BI Services: Data Lake, Databricks, SQL Database, Stream Analytics, Data Factory, Synapse, Cosmos. Business Intelligence Tools: SQL Server Analysis Services, Power BI, Dundas Dashboard, Tableau, SAP HANA. Reporting Tools: Crystal Reports, Crystal Enterprise, and SQL Server Reporting Services Programming Languages: SQL, T-SQL, C#, VB.NET, PYTHON. RDBMS: SQL Server, Oracle, Redshift, MySQL, AURORA DB. NoSQL Database: Dynamo DB. Scripting Language: JavaScript, jQuery, JSON, VB Script, DAX. ETL/ELT Tools: AWS DMS, Kinesis, Lambda, Step Functions, AWS Glue, SSIS Packages. Data Modeling Tools: Microsoft Visio.

💼 Data Engineer | ETL Developer | Machine Learning & Data Science Specialist I’m a Data Engineer & ETL Specialist with 15+ years of experience delivering data integration, transformation, and analytics solutions for global clients in the banking & financial domain. I combine deep Oracle ODI & PL/SQL expertise with Python-based Machine Learning to help organizations unlock actionable insights and automate decision-making. 🔹 My Core Skills: ETL Development & Optimization – Oracle Data Integrator (ODI), SSIS, SQL Loader, data migration, data warehouse/data mart design. Database Development – PL/SQL packages, procedures, functions, triggers, performance tuning, query optimization. Data Science & Machine Learning – Python, scikit-learn, pandas, NumPy, matplotlib, seaborn, regression, classification, clustering, model evaluation & deployment. Data Modeling & Analysis – Dimensional modeling, star/snowflake schema, OLTP & OLAP systems. Integration & Automation – REST APIs, web services, Unix shell scripting. Domain Expertise – Anti-Money Laundering (AML), Corporate Lending, Flexcube. ✅ Why Hire Me: Proven track record of delivering high-performance, scalable data pipelines. Strong mix of traditional data engineering and modern AI/ML capabilities. Banking & finance domain knowledge that bridges the gap between tech and business needs. Clear communication, proactive problem-solving, and commitment to deadlines. 📩 Let’s work together to build robust data pipelines, optimize performance, and apply machine learning to solve your most pressing business challenges.