Senior Database Consultant | AWS Azure Cloud Architect | DevOps

Skills: Vertica Database · Migration Projects · Database Optimization · Cloud Migration

Overview:
This project revolves around the proficient administration and management of the Vertica database system. The primary objective is to ensure optimal performance, reliability, and efficiency of Vertica databases, enabling effective data storage, retrieval, and analysis.

Highlights:
- Vertica database administration for the biggest Vertica client in the EU with storage of 15PB.
- Vertica database migration to Microsoft Azure with minimal downtime.
- Vertica EON installation and migration in Azure Cloud.
- Improved Vertica database performance, meeting business requirements and user expectations.
- Enhanced data reliability and availability through robust backup and recovery strategies.

Skills: Azure SQL DB · Azure Data Factory · Azure Functions · Azure Cosmos DB · Microsoft Power BI · Azure Data Lake · Azure DevOps
Overview:
This project centers on implementing an Internet of Things (IoT) solution leveraging Microsoft Azure Cloud services ( IOT Hub , Event Hub, Azure SQL DB , Azure Storage, Azure Data factory, Azure functions, ) . The aim is to create a scalable and secure IoT infrastructure that collects, processes, analyzes, and visualizes data from connected devices to derive actionable insights and drive business value.

Highlights:
- IoT Solution Design: Develop an architecture blueprint for the IoT solution, considering scalability, security, and compatibility with Azure services.
- Device Integration: Connect and manage diverse IoT devices, sensors, and gateways for data ingestion into the Azure ecosystem.
- Data Ingestion and Processing: Design data pipelines to ingest, process, and store real-time and batch data from IoT devices using Azure IoT Hub, Azure Stream Analytics, or Azure Event Hubs.
- Data Analytics and Visualization: Utilize Azure services like Azure Synapse Analytics, Power BI, or Azure Time Series Insights for data analysis, visualization, and deriving actionable insights.
- Security and Compliance: Implement robust security measures, including device authentication, encryption, and access control, ensuring compliance with industry standards and regulations.
- Scalability and Performance: Architect the solution to scale seamlessly to accommodate growing data volumes and ensure optimal performance.
- Integration with Azure Services: Integrate the IoT solution with other Azure services like Azure Functions, Azure Machine Learning, or Azure Cognitive Services for enhanced functionality and intelligence.
- Monitoring and Maintenance: Establish monitoring and maintenance protocols to ensure the health, reliability, and uptime of the IoT infrastructure.

Overview:
This project centers on the management and administration of Big Data infrastructure around 850 servers, specifically focusing on Cassandra database administration, Cassandra database migration, Cloudera manager, and Cloudera Hadoop cluster administration. The goal is to ensure efficient data storage, management, and processing for large-scale applications and analytics.

Key Responsibilities:
- Cassandra Database Administration: Oversee the setup, configuration, and maintenance of Cassandra databases, ensuring optimal performance and high availability.
- Cassandra Migration: Plan and execute migration strategies for moving Cassandra databases between clusters or versions, ensuring data integrity and minimal downtime.
- Cloudera Manager and Cloudera Hadoop Cluster Administration: Manage and maintain Cloudera and Hadoop clusters, including installation, configuration, monitoring, and performance tuning.
- Data Modeling: Collaborate with data engineering teams to design and implement effective data models in Cassandra for optimal query performance.
- Backup and Recovery: Develop and implement backup and recovery strategies for Cassandra databases and Hadoop systems to ensure data resiliency.
- Security Implementation: Implement and enforce security measures and access controls across Cassandra, Cloudera, and Hadoop environments to safeguard sensitive data.
- Performance Optimization: Analyze system performance, identify bottlenecks, and implement optimization strategies to improve data processing efficiency.

Achievements:
- Successfully administered and optimized Cassandra databases
- Executed seamless migrations of Cassandra clusters without data loss in the stream, minimizing downtime and ensuring data consistency.
- Efficiently managed Cloudera and Hadoop clusters, improving data processing capabilities and scalability.
- Implemented enhanced security measures, meeting compliance requirements and mitigating security risks.

Skills: Apache Impala · HiveQL · Adobe Spark · Postgres database · Big Data · Cloudera Manager · Hadoop Administration · MapReduce · Cassandra database administration · Backup Solutions · Shell Scripting

Overview:
- Managing diverse data sources and formats to ensure smooth ingestion into Azure Data Lake.
- Implementing robust security measures while maintaining accessibility and usability of stored data.
- Optimizing data processing workflows for efficient and cost-effective analytics and insights derivation.
- Ensuring scalability and performance while handling large volumes of data within Azure Data Lake.

Highlights:
- Successfully implemented Azure Data Lake Storage, providing a centralized repository for diverse data sources.
- Established robust security measures, ensuring compliance and data protection within Azure Data Lake.
- Enabled data processing and analytics, deriving actionable insights and supporting decision-making.
- Improved data accessibility and retrieval through efficient metadata management strategies.Overview: - Managing diverse data sources and formats to ensure smooth ingestion into Azure Data Lake. - Implementing robust security measures while maintaining accessibility and usability of stored data. - Optimizing data processing workflows for efficient and cost-effective analytics and insights derivation. - Ensuring scalability and performance while handling large volumes of data within Azure Data Lake. Highlights: - Successfully implemented Azure Data Lake Storage, providing a centralized repository for diverse data sources. - Established robust security measures, ensuring compliance and data protection within Azure Data Lake. - Enabled data processing and analytics, deriving actionable insights and supporting decision-making. - Improved data accessibility and retrieval through efficient metadata management strategies.

Skills: Azure SQL DB · Azure Data Factory · Azure Functions · Azure Cosmos DB · Microsoft Power BI · Azure Data Lake · Azure DevOps

Overview:
Upgrade and Migration of 10 Mysql and MS SQL server clusters with minimal downtime.

Highlights:
- Install and configure the MS SQL server in AlwaysOn High Availability with business standards in the New server.
- Data migration Assistant tool (DMA) for migrating the SQL server from datacenter to Azure Cloud.
- User management in the SQL server database.Overview: Upgrade and Migration of 10 Mysql and MS SQL server clusters with minimal downtime. Highlights: - Install and configure the MS SQL server in AlwaysOn High Availability with business standards in the New server. - Data migration Assistant tool (DMA) for migrating the SQL server from datacenter to Azure Cloud. - User management in the SQL server database.

Skills: Microsoft SQL Server · SQL Server Management Studio · Migration Projects

Overview:
This project encompasses a comprehensive upgrade of 9 Oracle RAC clusters, Migration of RAC databases to a new data center, RAC upgrades, storage optimization, cost-saving initiatives, robust auditing implementation, and the establishment of Data Guard for disaster recovery and high availability.

Highlights:
-Oracle RAC Upgrade: Plan and execute the upgrade of Oracle RAC to the latest version, ensuring compatibility and minimal disruption to operations.
- SSL implementation: Configuration of TCP/IP with SSL and TLS for Database Connections in Oracle database.
-Data Center Migration: Strategically migrate Oracle databases to a new data center, maintaining data integrity and minimizing downtime.
-Storage Optimization: Analyze and optimize storage configurations to enhance performance and reduce storage costs.
-Cost Efficiency Measures: Identify and implement strategies to optimize resource utilization and reduce operational expenses.
-Auditing Implementation: Establish comprehensive auditing mechanisms to ensure compliance, security, and data integrity.
-Data Guard Setup: Deploy and manage Data Guard configurations for disaster recovery and high availability solutions.

Achievements:
- Successfully upgraded Oracle RAC to the latest version, enhancing performance and leveraging new features.
- Migrated databases to the new data center with minimal disruption, ensuring data consistency and availability.
- Optimized storage configurations, resulting in 20% performance improvement and 40% reduction in storage costs from RAID level storage and removal of failgroups in ASM.
- Implemented robust auditing mechanisms, meeting compliance requirements and enhancing security.
- Established and managed Data Guard, ensuring high availability and disaster recovery readiness.Overview: This project encompasses a comprehensive upgrade of 9 Oracle RAC clusters, Migration of RAC databases to a new data center, RAC upgrades, storage optimization, cost-saving initiatives, robust auditing implementation, and the establishment of Data Guard for disaster recovery and high availability. Highlights: -Oracle RAC Upgrade: Plan and execute the upgrade of Oracle RAC to the latest version, ensuring compatibility and minimal disruption to operations. - SSL implementation: Configuration of TCP/IP with SSL and TLS for Database Connections in Oracle database. -Data Center Migration: Strategically migrate Oracle databases to a new data center, maintaining data integrity and minimizing downtime. -Storage Optimization: Analyze and optimize storage configurations to enhance performance and reduce storage costs. -Cost Efficiency Measures: Identify and implement strategies to optimize resource utilization and reduce operational expenses. -Auditing Implementation: Establish comprehensive auditing mechanisms to ensure compliance, security, and data integrity. -Data Guard Setup: Deploy and manage Data Guard configurations for disaster recovery and high availability solutions. Achievements: - Successfully upgraded Oracle RAC to the latest version, enhancing performance and leveraging new features. - Migrated databases to the new data center with minimal disruption, ensuring data consistency and availability. - Optimized storage configurations, resulting in 20% performance improvement and 40% reduction in storage costs from RAID level storage and removal of failgroups in ASM. - Implemented robust auditing mechanisms, meeting compliance requirements and enhancing security. - Established and managed Data Guard, ensuring high availability and disaster recovery readiness.


Skills: Migration Projects · Database Optimization · Oracle Data Guard · Oracle RAC · Oracle ASM · Oracle Database Administration · RMAN · GoldenGate · Oracle SQL Developer

Overview:
The project involves proficient Oracle Database Administration focusing on Recovery Manager (RMAN) for robust backup and recovery solutions. The primary goal is to ensure the integrity, availability, and security of critical data within the Oracle database ecosystem.

Achievements:
-Established a reliable backup and recovery system using RMAN, reducing data recovery time by 50% and ensuring business continuity.
-Successfully upgraded and migrated databases while maintaining data integrity and minimizing disruptions.
-Implemented proactive measures resulting in 30% improvement in database performance and efficiency.Overview: The project involves proficient Oracle Database Administration focusing on Recovery Manager (RMAN) for robust backup and recovery solutions. The primary goal is to ensure the integrity, availability, and security of critical data within the Oracle database ecosystem. Achievements: -Established a reliable backup and recovery system using RMAN, reducing data recovery time by 50% and ensuring business continuity. -Successfully upgraded and migrated databases while maintaining data integrity and minimizing disruptions. -Implemented proactive measures resulting in 30% improvement in database performance and efficiency.

Skills: Oracle RAC · Oracle ASM · Oracle Database Administration · Oracle SQL Developer

Skills: Oracle ASM · Oracle Database Administration · PL/SQL · Oracle Grid · Shell Scripting
Overview:
The project involves Oracle Database Administration focusing on automation of day-to-day Oracle tasks. The primary goal is to reduce cost and effort within the Oracle database ecosystem.

Managed 18 Oracle databases on different servers for this UAE client.

Achievements:
-Improved operational efficiency and reduced human error through automated monitoring and alerting systems.
-Streamlined patch management processes, minimizing downtime and enhancing database security.
-Enhanced documentation accuracy and consistency through automated generation and updates.

Technology: Oracle 11gr2, RAC, ASM, 12c Cloud Control, RMAN, Active Dataguard, Exadata T5-8 system, ENDUR
V8, ENDUR V12, Openlink, Batch programming, PL/SQL, J2EE Automations. APEX, SQLLDR

Responsibilities:
* Refresh Automation with transportable tablespace created as a self-service portal for testers to populate/
refresh. The feature also includes Automatic Schema refresh, RMAN Cloning.
* Maintenance of Oracle RAC system in Oracle T5-8 system with Active Dataguard enabled.
* Data migration for ENDUR Deals move and for data load during V12 migration.
* Release and update coordination for ENDUR
* Infrastructure Management of a split End-of-Day for Endur.
* ENDUR User access control in ENDUR V12 and in V8
* Creation of quality processes and implementation in Releases. Configuration management of HPSC across the
project.
* Establishing quality benchmark with the users. Evaluating testing performance against benchmarks with
Database Performance.
* Database Patching, Upgrade, and bug fixes for Oracle database during the maintenance cycle.
* Special Automations created for ENDUR refresh and for Auto-extend of Database Tablespaces.

Technology: Oracle 11g, RAC, ASM, 12c Grid Control, RMAN, Dataguard, Red Hat Linux, Solaris

Responsibilities:
* Installation and configuration of single instance and multi-instance RAC databases for production,
preproduction, development, and test environments with OLTP and Data Warehouse databases before go-live
and support of all the environments pre and post-go-live.
* Configuration of physical standby databases with Data Guard for high availability and disaster recovery using
oracle 11gR2 in the production, pre-production, development, and test environments. Administration & support
of all the database environments.
* Assisting the development and test teams in the development and testing of pl/SQL-based application codes
using oracle performance testing tools like explain plan, AWR report, etc.
* Upgrade/Patching of Oracle 11gR2 single instance & multi-instance
Grid Infrastructure/Cluster and databases in production, preproduction, development, and test environments.
* Installation and Configuration Weblogic Middleware platform and supporting application teams for forms and
reports deployment.
* Full responsibility of day-to-day support of production, pre-production, development and test database
environments, performance monitoring, performance analysis, and tuning, problem identification/diagnosis and
correction, backup, restore and recovery as and when needed, resolving incidents/defects, etc.
* Automation user website created for Capacity planning, Resource monitoring, Database refresh, backup
dashboard, Tablespace auto extension through PL/ SQL and through J2EE coding for the client.
* Weekday (out of hours) and weekend on-call/standby DBA support on a rotation basis.

Technology: Oracle 11g, RAC, ASM, WebLogic 11.2, APEX 4, Dataguard, RMAN, Red Hat Linux, Solaris, SQL Tuning,
DB Tuning

Responsibilities:
* Oracle database administration, operations, capacity planning, monitoring, and performance tuning
* Oracle database and application integrations, patching, cloning, maintenance, and upgrades
* WebLogic Installation, Upgradation, and maintenance in a cluster setup.
* Oracle APEX installation and patching during the maintenance cycle.
* Oracle backups and restores, high availability and disaster recovery
* Oracle monitoring, troubleshooting, and performance tuning

Responsibilities:
* Providing 24X7 Database administration support for all L1, L2, and L3 tasks and Sev-1/2 issues as per the SLA.
* Installation, Configuration, Upgrade, and Patching of Oracle products.
* RMAN Backup, Restore and Recovery management
* Refresh and Cloning of Production databases to Dev/Test environments
* Configuration, Upgradation, and Administration of Oracle Data Guard and set up of physical and Logical
Standby databases
* Installation, Upgrade, and Administration of databases running on Oracle RAC 11g,10g.
* Storage Administration using ASM.
* Proactive Monitoring and optimization of Database performance
* Working with the Development team to ensure best practices are implemented and maintained.
* Supporting Integrated and Infrastructure release activities.
* Write monitoring/health check scripts to alert team for uptime /downtime status and space issues
* Perform capacity planning and space management.
* Setting up and maintenance of documentation & standards.

Technology: Oracle 11gr2,11gr1,10g,9i,8i,7i, RAC, ASM, OEM, RMAN, Windows and HP-UX.
Responsibilities:
• Providing 24X7 Database administration support for all L1, L2 and L3 tasks
• Representation of DB team.
• Maintaining Database inventory.
• Monitoring Backups.
• Database Administration and Maintenance.
• Performance Tuning
• Installation, Configuration, Upgrade and Patching of Oracle products.
• SQL Tuning
• Import and Export of Databases, Users and Tables.
• DB Backup and Restoration.
• Sorting File system space issues.
• Unix Scripting to automate daily tasks.
• Setting up new production and QA databases.
• Handling Concurrent Manager issues.
• Minor Oracle Apps DBA activities from Application front end.