Khaled Mohamed Mohamed Khalifa

Role: Oracle Cloud Infrastructure Architecture
• Design and govern the end-to-end OCI architecture, including tenancy strategy, compartments, networking, and service design.
• Manage and maintain Oracle Cloud Infrastructure (OCI).
• Develop and execute cloud migration strategies.
• Collaborate with cross-functional teams to ensure seamless integration of cloud services.
• Monitor system performance and troubleshoot issues.
• Ensure security and compliance standards are met.
• Optimize cloud resources to improve cost-efficiency.
• Provide technical support and guidance for cloud usage.
• Document all cloud environment processes and procedures.


Role: Data Engineer (Talend, Pentaho, MySQL, PostgreSQL, mongo DB, Hadoop \[Big Data\], Elasticsearch)
ETL (Pentaho, Talend)
• Experience using Talend Data Integration ETL tool as a developer in a big-data environment
• Experienced with Talend runtime including Kafka and API development with Talend components
• Experienced with Talend DI ETL across multiple databases and cloud vendors
• Experienced with Structured Query Languages (SQL) including PL-SQL
• Experienced with Talend CI/CD Process using standard code management and artifact management products
• perform data extraction, data loading solving the errors, checking filter criteria.

MySQL
• Managing high transactional MySQL databases servicing OLTP.
• Experience with MySQL database design, implementation, performance tuning, and capacity planning.
• Profile server resource usage, optimize and tweak as necessary.
• Ensure performance, security, and availability of databases.
• Experience with MySQL’s underlying storage engines, such as Inno DB and My ISAM.


PostgreSQL
• Installing, Managing & Configuring Pgpool load balancer cluster
• Installing, Managing & Configuring Patroni clusters over ETCD clusters
• Create objects in the database, such as triggers, indexes, etc.
• Monitor the performance of the database and ensure optimum performance.
• Identify potential issues in the database to solve them early.
• Maintain backups and perform disaster recovery sites.
• Monitor security and prevent any unauthorized access to the database
• Schedule consistent maintenance on the server

MongoDB
• Implement appropriate indexes for performance improvement.
• Fine-tune configurations - MongoDB and servers for performance improvement.
• Implement optimal backup and recovery.
• Understand and optimize query performance.
• Create and publish database health checks to monitor systems for the following:
1. Identify slow queries
2. Replication lags
3. Node failures
4. Index usage patterns
5. CPU usage
6. Memory usage
7. Locks
8. Number of connections
9. Any other relevant params.

Elasticsearch
• Maintaining and supporting Elasticsearch cluster.
• Creating clusters from scratch
• Decommissioning and Recommissioning servers
• Analyzing, troubleshooting the issues with the clusters.
• Working with the Elastic Stack.

First Bank (Nigeria)
• Configuring the Logical hosts for E-business suite R12.2
• Change the SOA to reach the ERP through the load balancer instead of calling a Single node integration
• Migrating E-Business Database 12C from Exadata X-6 to Exadata X-7
• Building the ERP DR (Data guard 12C - ERP Topology)
• resolving the performance issues
• Appling the latest PSU and TXK to R12.2.8
• Enable JWS on both UAT & Production Environments
• Performing Data Masking on ERP Database
• Implementing Oracle Golden Gate 12C

Omantel (Oman)
• Appling the latest PSU and TXK to R12.2.8
• Enable JWS on the Prod Environment
• resolving the performance issues

Sonatel Orange Senegal(Senegal)
• Upgrading the R12.1.3 to R12.2.9
• Integrating R12.2 with Oracle identity Access Manager 12C
• Implementing SSO Oracle Internet Directory(OID), Oracle Access Manager (OAM)
• Appling the latest CPU, PSU, TXK for both application and database tier
• Adding the full topology to the load balancer (application & network perspective)
• Resolving performance issues
• Tuning the OA cores and applying Garbage proper Collection parameters, jdbc connection pool of the Data source
• Rapid Cloning UAT & Pre-Prod Environments
• Building the ERP DR (Data guard 12C - ERP Topology)
• Implementing SOA 12c Gateway & integrate it with R12.2
• Implementing mobile application
• Performing The ERP purging

Ethiotel Orange Ethiopia (Ethiopia)
• Rapid Cloning
• Resolving Performance Issues

National Bank of Egypt (NBE) (Egypt)
• Resolving Performance Issues

YAS Holding (UAE)
• Upgrading E-Business suite from 12.1.3 to 12.2.8. Database (Multi-Node) & Application (Multi-Node)
• Installing & configuring Oracle Enterprise Command Center (ECC)
• Enable JWS on the Prod Environment
• Building the ERP DR (Data-guard 19C - ERP Topology)
• Appling the palest CPU, PSU , TXK for both application and database tier
• Implementing Oracle Golden Gate 12C Department Of Finance of Emirates (DOF UAE)
• Upgrading R12.2.5 to 12.2.9. Database (Multi-Node) & Application (Multi-Node)
• Resolving Performance Issues
• Rapid Cloning UAT & Pre-Prod Environments

Department Of Finance of Emirates (DOF UAE - Abu Dhabi Customs)
• Upgrading Forms & Reports 10g to Forms & Reports 12C (12.2.1.4) Clusters & Standalone, Database (Multi-Node) & Application (Multi-Node)
• Implementing DR site Data guard 19C
• Tuning the application
1. JVM Pooling
2. Garbage Collection
3. Configuring the load Balancers
4. Post Go-Live Support
5. Tuning the Operating System Solaris 11.4

Matlan (UK)
• Installing, patching, E-Business suite 12.2.8. Database (Multi-Node) & Application (Multi-Node)
• Migrating the R12.2 from On-Premise to OCI tenancy
• Building the ERP DR (Data guard 19c - ERP Topology)
• Implementing Oracle Golden Gate 12C between two OCI separate regions

• Installing, Managing, configuring Weblogic Cluster 12C.
• Implementing Oracle Golden Gate 12C
• Installing, Managing, configuring Oracle Business Intelligence Cluster 12C.
• Installing, Managing, configuring WebCenter Content 12C Cluster.
• Installing, Managing, configuring Oracle SOA Suite Cluster 12C.
• Installing, Managing, configuring Oracle Service Bus Cluster 12C.
• Installing, Managing, configuring Oracle Identity & Access Manager Cluster 12C.
• Installing, Managing, configuring Oracle Grid Control 13C.
• Installing, Managing, configuring Forms & Reports 12C.
• Installing, patching, E-Business suite 12.2.8.
• Upgrading E-Business Suite from 12.1.3 to 12.2.8.
• Performing Cloning of Production & non production Environments.
• Patching all running environments VISION, TEST, PROD.
• installing, UAT, DEV, QC, PREPROD, PROD environments.

• Installing, patching, upgrading Weblogic servers11g (10.3.5, 10.3.6) & 12C (12.1.2, 12.2.1)
• Installing, Patching, Managing, IBM Websphere (WAS 8 - 9)
• Installing, Configuring Weblogic Performance tuning and High availability.
• Installing Configuring DEV, UAT, QC, PREPROD, & PROD environments
• Installing, Configuring & Upgrading Forms & Reports 11g to 12C
• installing, Managing, configuring Jboss servers EAP 6.4.0, EAP 4.5.3
• Managing Oracle application server 10g
• Managing deployments to the ERP through Weblogic 11g -12c & EAP 6.4.0, OAS 10g

• Installing, Managing, configuring Weblogic 12C Cluster and Glassfish Cluster
• Installing, Managing, configuring Tomcat Application server & the ERP of Safaga Port
• Installing, Managing Oracle RAC 12C using Udev on ESXI 6.5 servers
• Implementing Backup strategy using database rman pump & rman
• Cloning pluggable database production to test or development databases
• Deploying patches to the ERP through Weblogic 12C application server and Glassfish application server to
development, testing & production environments
• Creating database users and maintaining password rights
• Monitoring database using OEM and custom scripts
• Supporting the business with Database lock, space management, export and import of the database if needed,
performance tuning at DB level and apps Level
• Checking the cluster status & healthy
• Checking the OCR backup status

• Installing, Managing & Configuring WebLogic 12C Cluster on Exalogic.
• Installing, Managing & Configuring Oracle GoldenGate 11g, 12C full implementation.
• Installing, Managing & Configuring oracle unified directory, oracle internet directory& oracle directory access manager
• Installing, Managing & Configuring WCC Cluster on Exalogic.
• Installing, Managing & Configuring OVM on ExaLogic.
• Installing, Managing & Configuring Oracle Enterprise Manager 12C, Oracle Cloud Control 13C.
• Installing SOA Server.
• Connecting WLS to a DB cluster using Grid Link.
• Configuring Web Tier Cluster.
• Performs basic storage administration and maintenance tasks.
• Proxy traffic to a middleware clusters using Traffic Director.
• Starts, kills, and migrates servers using the Node Manager.
• Enables and configures optimizations for WebLogic Server on the Exalogic.
• Compares various InfiniBand communication methods.
• Configures a compute node's network to support Fusion Middleware.
• Configures network channels for a WebLogic Server.
• Creates pools, projects, and shares.
• Isolates network communication for different applications.
• Locates and uses checklists and worksheets to plan an installation.
• Views device status and health with ILOM.
• Installing, Managing & Configuring Oracle Database RAC 12C on OEL 7.2 .
• Software maintenance of the Database servers in the Database machine including upgrades and patching.
• Provide and implement performance and tuning recommendations of all components in the Database machines.
• Advise, provide guidance and develop Disaster Recovery strategies for these Database machines.
• Configure the machines to meet internal security requirements.
• Provide business as usual data structure manipulation (add, remove, modify storage) in the Database machine.
• Analyze and determine the feasibility of leveraging the Oracle Enterprise Manager solution to report on performance,
providing metrics, and become the centralized proactive maintenance solution for Exadata distributions.
• Develop and record certified processes/procedures for all potential IT downstream support groups to maintain
and upgrade the Database machines.

• Installing, Managing & Configuring Oracle Database RAC 11g on Redhat 6.5.
• Installing, Managing & Configuring Oracle Database RAC 11g on Windows 2008R2.
• Performing Performance & SQL tuning to the database.
• Performance monitoring and work load management.
• Fine tuning, Space management, Data security, Schema management, Fault management, Diagnostic assessment
of the different Databases.
• Managing UCM 10gR3 Universal Content Management
• Design and Develop backup and recovery procedures using RMAN and other backup tools & checking backups
and dumps.
• Applying security patches and upgrades to latest release of the different instances.
• Installation, configuration, administration & implementation to Symantec backup Exec 11 and 12.
• Supporting database systems and prosecution team in different sites.
• Knowledge transfer to prosecution team existing and new comrades.
• Cloning production to test &development environment.
• Identify technical gaps in user requirements and design custom solutions to cater the user requirement.
• Routine maintenance activities, system monitoring and proactive health check on a daily basis.
• Managing San Storage TS4300.

• Installing, Managing & Configuring Oracle Database RAC 11g on Red-hat 6.3.
• Administering all database objects, including tables, clusters, indexes, views, sequences, packages and procedures.
• Assists with impact analysis of any changes made to the database objects.
• Performing both database and OS performance monitoring and the necessary adjustments.
• Planning along with the application developers and system administrators, to ensure that any new product usage
or release upgrade takes place with minimal impact.
• Provides technical support to application development teams.
• Enforces and maintains database constraints to ensure integrity of the database.
• Troubleshooting all problems regarding the databases, applications and development tools.
• Manage sharing of resources among applications.

• Migration from MS-SQL Server 2008r2 Enterprise Edition to Oracle 10gr2 Enterprise Edition.
• Creates and maintains all databases required for development, testing, education and production usage.
• Performing the capacity planning required to create and maintain the database.
• Performing Performance & SQL tuning.
• Declaring & Performing Oracle backup and recovery tasks using rman and data pump.
• Troubleshooting problems regarding the databases, applications and development tools.
• provide a strategic database direction for the organization.
• Performs database re-organizations as required to assist performance and ensure maximum uptime of the database.