Database Cloud Migration and Database Engineering
Aktualisiert am 13.01.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 13.01.2026
Verfügbar zu: 80%
davon vor Ort: 20%
Oracle
AWS
PostgreSQL
Datenbankmigration
Datenarchitektur
Azure
AWS DMS
AWS SCT
MariaDB
Arabic
Muttersprache
English
Professional working proficiency
German
Intermediate (B1, continuing studies)

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

4 years 6 months
2021-09 - now

Database Migration Leadership & Multi-Cloud Strategy

Sr. Cloud Database Migration Engineer ? Tech Lead PostgreSQL AWS RDS AWS SCT ...
Sr. Cloud Database Migration Engineer ? Tech Lead

Database Migration Leadership & Multi-Cloud Strategy

  • Led the migration of complex Oracle database workloads to multi-cloud environments, including AWS, Azure, GCP, and OCI, leveraging Oracle's database platforms across major cloud providers, including Oracle Database on Amazon EC2, Oracle Database on Azure Virtual Machines, and Oracle Database on Google Compute Engine, alongside Oracle's comprehensive portfolio on OCI, including Exadata, Autonomous Database, and Base Database services, to achieve significant cost savings and vendor independence.
  • Architected and executed end-to-end database migration strategies, transitioning enterprise workloads from on-premises data centers to leading cloud platforms (AWS, Azure, GCP, OCI).
  • Automated the provisioning and configuration of cloud database environments using Terraform and GitOps principles, ensuring robust Infrastructure as Code (IaC), version control, and repeatable deployments across any cloud provider.
  • Performed comprehensive discovery and assessment of client environments, applying the 7 Rs of migration to develop tailored roadmaps and build a compelling business case for multi-cloud adoption.
  • Analyzed and optimized commercial database licenses (Oracle, MSSQL) to build a financial case for migration, resulting in significant cost reduction and improved operational efficiency.
  • Served as a trusted advisor, providing expert technical guidance on cloud best practices, security, and modern database architectures to key customer stakeholders.


Database Modernization & AI-Powered Conversion

  • Analyzed and estimated the complexity of converting commercial databases (Oracle, MSSQL) to open-source platforms, targeting managed PostgreSQL services such as Amazon Aurora, Azure Database for PostgreSQL, and Google Cloud SQL, leveraging Generative AI tools to accelerate code translation and identify potential migration blockers.
  • Executed the conversion of database schemas, stored procedures, and functions, utilizing Generative AI to generate initial code drafts for PostgreSQL, which were then refined and validated for performance and functional parity on the target managed database service.


Client Engagement & Technical Communication

  • Partnered directly with customers to deeply understand business requirements and translate them into clear technical migration goals and success criteria for the target cloud platform.
  • Developed and delivered executive-level presentations and technical reports, employing Generative AI to synthesize complex migration data into clear, concise summaries of project progress, risks, and business outcomes.


Projects

  • Oracle Exadata/ExaCC Workload to AWS RDS / AWS EC2 using Oracle Native tools (RMAN, DataDump, GoldenGate, DataGuard) and AWS DMS.
  • Migrate Oracle workloads to GCP Bare metal solution with Oracle Virtualization Manger
  • Migrate Oracle Exadata from On-Prem to AWS RDS Custom for Oracle using Oracle Data Guard
  • Upgrade Oracle Database from 12C to 19C on AWS.
  • Converting Oracle Database to Aurora PostgreSQL using AWS SCT and DMS tools.
  • Migrate and convert Oracle Database 19C to Azure SQL using SQL Server Migration Assistant.
  • Upgrade Azure Database for PostgreSQL from version v9.6 to v11.

PostgreSQL AWS RDS AWS SCT DMS Azure SQL Oracle Data Guard
Nordcloud
2 years 7 months
2019-02 - 2021-08

various projects

Database Engineer PostgreSQL MySQL MariaDB ...
Database Engineer
  • Installing and configuring all new databases on different platforms for our customers.
  • Administrating all development, test and production databases environment (11g, 12C, 18)
  • for many customers hosted on our data centers.
  • Installing and configuring PostgreSQL and MySQL//MariaDB database.
  • Upgrading and patching all databases to latest releases depends on our customer requirements.
  • Troubleshooting all issues on MySQL/MariaDB and PostgreSQL.
  • Administrating very complex HA environments based on Oracle Data Guard and Oracle RAC.
  • Planning for database version upgrades and migration to new platforms.
  • Tune and enhance the overall performance for all databases including the problematic queries using oracle tools like (AWR, ASH, ADDM, SQL trace ?etc.)
  • Using Puppet (git) and Ansible to automate some database tasks and configuration management.
  • Plan and implement all backup and recovery strategy of all databases using RMAN and tapes.
  • Participate in on-call rotation to provide 24/7 support for our customers.
  • Design and perform the capacity planning required to create new databases for new customer projects.
  • Monitoring all databases for our customers using Oracle EM Cloud Control, Nagios, Zabbix and internal scripts.


Projects

  • Migrate Oracle Database 19C RAC environment from On-Prem to Google Cloud (BMS)
  • Rolling Upgrade Oracle Database RAC From 12.2 to 19C Using Transient Logical Standby Database without Downtime
  • Upgrading Oracle Database RAC environment from 12.1 to 12.2
  • Upgrading and migrating Oracle Database RAC environment from 11.2.0.4 to 12.2
  • Upgrading Oracle Database RAC environment from 12.1 to 18C
  • Work on migration project to move all Oracle Database from old Data Center to a new one
  • Upgrading Oracle Database RAC 2-Node environment from 12.2 to 19C
  • Build a new MariaDB Galera Cluster (multi-master) to migrate old MySQL Master-Slave setup
  • Build PostgreSQL Clusters with Primary ? Standby Setup
PostgreSQL MySQL MariaDB Oracle AWR ASH ADDM SQL trace Nagios Zabbix
PlusServer GmbH
1 year
2018-02 - 2019-01

Migration Oracle database

Advanced Database Administrator (SRE)
Advanced Database Administrator (SRE)

Migration Oracle database to new hardware with upgrading DB version using Oracle GoldenGate.

  • Installing and maintaining all databases on Linux platform
  • Administrating all test phases and production databases
  • Configuring and administrating Oracle Data Guard to enhance the database availability
  • Implementing and administrating Oracle RAC environments
  • Enhance the overall performance for all databases including the problematic statements
  • Follow ITIL principals while fixing the issues and apply the changes
  • Plan, implement, test backup and recovery strategy of all databases using RMAN
  • Using Ansible scripts to automate some database tasks
  • Migrating the database to newer hardware based on decommission policy
  • Follow the change management process to apply the changes

Amadeus Data Processing GmbH
1 year 2 months
2016-12 - 2018-01

Design, implementation and management of the entire database infrastructure

Senior Database Administrator ? Tech Lead
Senior Database Administrator ? Tech Lead

Responsible for design, implement and administrate all Oracle Database infrastructure:

  • Installing and maintaining all databases on Solaris/Linux/AIX/Windows platform
  • Design and perform the capacity planning required to create new Oracle databases
  • Administrate+150 testing and production database environments with Oracle version (11g, 12C)
  • Migrate and upgrade all production databases to latest Oracle database version and apply all required patches using OPatch
  • Configuring and administrating Oracle Data Guard to enhance the database availability during the server maintenance
  • Monitoring all databases using Oracle Enterprise Manager Cloud Control 13c
  • Implementing and administrating Oracle RAC environments with multi cluster nodes
  • Plan, implement and test backup and recovery strategy of all databases using RMAN
  • Involved in the design of physical database schema, data modeling, and performance tuning
  • Documenting all changes and activities to be reference in rollback scenarios and sharing knowledge
  • Apply the critical changes after attending CAB meetings
  • Apply ITIL principals while fixing issues and apply the changes
  • Managing and administrating Oracle Golden Gate environments
  • Administrating and managing Oracle engineering systems like EXADATA X4/X6 and Super Cluster M7 Environments
  • Creating scripts to automate some database tasks which monitoring the database
  • Participate on load test activity to identify any issue before going live
Vodafone Telecommunications
11 months
2016-01 - 2016-11

Design, implementation and management of the database infrastructure

Senior DBA
Senior DBA

Responsible for design, implement and administrate all Oracle Database infrastructure:

  • Perform the capacity planning required to create and maintain all Oracle databases on Unix,
  • Linux and AIX environments.
  • Creating, administrating and maintaining+50 staging and production database environments.
  • Performs ongoing tuning of all production databases to improve the performance.
  • Plans and implements backup and recovery strategy of all databases using RMAN.
  • Troubleshooting all databases performance issues using Oracle tools (AWR, ASH, ADDM, Statspack, tkprof, OEM).
  • Migrating single database instances to Oracle RAC environments.
  • Managing and administrating Data Warehouse and OLAP databases.
Fawry Integrated Systems (Payment Solutions)
3 years
2013-01 - 2015-12

Troubleshooting complex database problems

Senior Database Support Engineer
Senior Database Support Engineer

The main role is troubleshooting complex database problems requiring high level technical expertise and product knowledge:

  • Receive customer issue via ticket system then investigate and provide action plans to fix the problem
  • Build test cases internally if needed during the investigation stage
  • Actively share knowledge via Training sessions, mentoring and creating knowledge base Articles
  • Consults with Management in directing resolution of critical Customer situations
  • Consults with Customers on complex use of Oracle products
  • Participates in initiatives that improve overall product and documentation quality
  • Proactively contribute to increasing the team?s efficiency by sharing knowledge and providing feedback about best practices, writing tools/ utilities
Oracle Corporate
3 years 9 months
2009-04 - 2012-12

Management of all databases

Database and Application Support Specialist
Database and Application Support Specialist

Responsible for administrating all database and supporting all application up and running

  • Provide a second line support service24/7 for all applications and Oracle/ MSSQL database issues
  • Resolve all tickets that wereescalatedfromthe1?st line support team in Remedy system
  • Creating, administrating, and maintaining for production database environments including Oracle and MSSQL
  • Performs ongoing tuning of all production databases to improve the performance
  • Plans and implements backup and recovery strategy of all databases using RMAN
  • Upgrade all production databases to latest Oracle database version and apply all critical patches
  • Troubleshooting all databases performance issues using Oracle tools (AWR, ADDM, etc)
  • Ensure the day-to?day operation of all applications and its databases with minimal downtime and ensure high availability for applications
International Turnkey Systems (ITS)

Aus- und Weiterbildung

Aus- und Weiterbildung

2004 - 2008

Study - Computers and Information

Faculty of computer and information/ University Cairo

Major: Information Technology

Minor: Information Systems

Degree: Bachelor / Grade: Very Good


COURSES AND CERTIFICATES

  • UNIX Shell Scripting for Administrators.
  • Solaris System Administration I& II.
  • AWS Certified Cloud Practitioner.
  • AWS Certified Solutions Architect ? Associate
  • Migration Ambassador Foundations (Business) 2022
  • Oracle Database 10g Administrator Certified Professional
  • Oracle Database 11g Administrator Certified Professional
  • Oracle Database 12C Administrator Certified Professional
  • Oracle Database 11g Performance Tuning Certified Expert.
  • Oracle Certified Expert, Oracle Real Application Clusters 11g Grid Infrastructure Administrator.
  • Oracle Autonomous Database Cloud 2019 Certified Specialist.
  • Oracle Cloud Infrastructure 2019 Certified Architect Associate
  • Oracle Cloud Infrastructure 2019 Certified Architect Professional
  • EDB PostgreSQL Advanced Server 10 Associate Certification

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

4 years 6 months
2021-09 - now

Database Migration Leadership & Multi-Cloud Strategy

Sr. Cloud Database Migration Engineer ? Tech Lead PostgreSQL AWS RDS AWS SCT ...
Sr. Cloud Database Migration Engineer ? Tech Lead

Database Migration Leadership & Multi-Cloud Strategy

  • Led the migration of complex Oracle database workloads to multi-cloud environments, including AWS, Azure, GCP, and OCI, leveraging Oracle's database platforms across major cloud providers, including Oracle Database on Amazon EC2, Oracle Database on Azure Virtual Machines, and Oracle Database on Google Compute Engine, alongside Oracle's comprehensive portfolio on OCI, including Exadata, Autonomous Database, and Base Database services, to achieve significant cost savings and vendor independence.
  • Architected and executed end-to-end database migration strategies, transitioning enterprise workloads from on-premises data centers to leading cloud platforms (AWS, Azure, GCP, OCI).
  • Automated the provisioning and configuration of cloud database environments using Terraform and GitOps principles, ensuring robust Infrastructure as Code (IaC), version control, and repeatable deployments across any cloud provider.
  • Performed comprehensive discovery and assessment of client environments, applying the 7 Rs of migration to develop tailored roadmaps and build a compelling business case for multi-cloud adoption.
  • Analyzed and optimized commercial database licenses (Oracle, MSSQL) to build a financial case for migration, resulting in significant cost reduction and improved operational efficiency.
  • Served as a trusted advisor, providing expert technical guidance on cloud best practices, security, and modern database architectures to key customer stakeholders.


Database Modernization & AI-Powered Conversion

  • Analyzed and estimated the complexity of converting commercial databases (Oracle, MSSQL) to open-source platforms, targeting managed PostgreSQL services such as Amazon Aurora, Azure Database for PostgreSQL, and Google Cloud SQL, leveraging Generative AI tools to accelerate code translation and identify potential migration blockers.
  • Executed the conversion of database schemas, stored procedures, and functions, utilizing Generative AI to generate initial code drafts for PostgreSQL, which were then refined and validated for performance and functional parity on the target managed database service.


Client Engagement & Technical Communication

  • Partnered directly with customers to deeply understand business requirements and translate them into clear technical migration goals and success criteria for the target cloud platform.
  • Developed and delivered executive-level presentations and technical reports, employing Generative AI to synthesize complex migration data into clear, concise summaries of project progress, risks, and business outcomes.


Projects

  • Oracle Exadata/ExaCC Workload to AWS RDS / AWS EC2 using Oracle Native tools (RMAN, DataDump, GoldenGate, DataGuard) and AWS DMS.
  • Migrate Oracle workloads to GCP Bare metal solution with Oracle Virtualization Manger
  • Migrate Oracle Exadata from On-Prem to AWS RDS Custom for Oracle using Oracle Data Guard
  • Upgrade Oracle Database from 12C to 19C on AWS.
  • Converting Oracle Database to Aurora PostgreSQL using AWS SCT and DMS tools.
  • Migrate and convert Oracle Database 19C to Azure SQL using SQL Server Migration Assistant.
  • Upgrade Azure Database for PostgreSQL from version v9.6 to v11.

PostgreSQL AWS RDS AWS SCT DMS Azure SQL Oracle Data Guard
Nordcloud
2 years 7 months
2019-02 - 2021-08

various projects

Database Engineer PostgreSQL MySQL MariaDB ...
Database Engineer
  • Installing and configuring all new databases on different platforms for our customers.
  • Administrating all development, test and production databases environment (11g, 12C, 18)
  • for many customers hosted on our data centers.
  • Installing and configuring PostgreSQL and MySQL//MariaDB database.
  • Upgrading and patching all databases to latest releases depends on our customer requirements.
  • Troubleshooting all issues on MySQL/MariaDB and PostgreSQL.
  • Administrating very complex HA environments based on Oracle Data Guard and Oracle RAC.
  • Planning for database version upgrades and migration to new platforms.
  • Tune and enhance the overall performance for all databases including the problematic queries using oracle tools like (AWR, ASH, ADDM, SQL trace ?etc.)
  • Using Puppet (git) and Ansible to automate some database tasks and configuration management.
  • Plan and implement all backup and recovery strategy of all databases using RMAN and tapes.
  • Participate in on-call rotation to provide 24/7 support for our customers.
  • Design and perform the capacity planning required to create new databases for new customer projects.
  • Monitoring all databases for our customers using Oracle EM Cloud Control, Nagios, Zabbix and internal scripts.


Projects

  • Migrate Oracle Database 19C RAC environment from On-Prem to Google Cloud (BMS)
  • Rolling Upgrade Oracle Database RAC From 12.2 to 19C Using Transient Logical Standby Database without Downtime
  • Upgrading Oracle Database RAC environment from 12.1 to 12.2
  • Upgrading and migrating Oracle Database RAC environment from 11.2.0.4 to 12.2
  • Upgrading Oracle Database RAC environment from 12.1 to 18C
  • Work on migration project to move all Oracle Database from old Data Center to a new one
  • Upgrading Oracle Database RAC 2-Node environment from 12.2 to 19C
  • Build a new MariaDB Galera Cluster (multi-master) to migrate old MySQL Master-Slave setup
  • Build PostgreSQL Clusters with Primary ? Standby Setup
PostgreSQL MySQL MariaDB Oracle AWR ASH ADDM SQL trace Nagios Zabbix
PlusServer GmbH
1 year
2018-02 - 2019-01

Migration Oracle database

Advanced Database Administrator (SRE)
Advanced Database Administrator (SRE)

Migration Oracle database to new hardware with upgrading DB version using Oracle GoldenGate.

  • Installing and maintaining all databases on Linux platform
  • Administrating all test phases and production databases
  • Configuring and administrating Oracle Data Guard to enhance the database availability
  • Implementing and administrating Oracle RAC environments
  • Enhance the overall performance for all databases including the problematic statements
  • Follow ITIL principals while fixing the issues and apply the changes
  • Plan, implement, test backup and recovery strategy of all databases using RMAN
  • Using Ansible scripts to automate some database tasks
  • Migrating the database to newer hardware based on decommission policy
  • Follow the change management process to apply the changes

Amadeus Data Processing GmbH
1 year 2 months
2016-12 - 2018-01

Design, implementation and management of the entire database infrastructure

Senior Database Administrator ? Tech Lead
Senior Database Administrator ? Tech Lead

Responsible for design, implement and administrate all Oracle Database infrastructure:

  • Installing and maintaining all databases on Solaris/Linux/AIX/Windows platform
  • Design and perform the capacity planning required to create new Oracle databases
  • Administrate+150 testing and production database environments with Oracle version (11g, 12C)
  • Migrate and upgrade all production databases to latest Oracle database version and apply all required patches using OPatch
  • Configuring and administrating Oracle Data Guard to enhance the database availability during the server maintenance
  • Monitoring all databases using Oracle Enterprise Manager Cloud Control 13c
  • Implementing and administrating Oracle RAC environments with multi cluster nodes
  • Plan, implement and test backup and recovery strategy of all databases using RMAN
  • Involved in the design of physical database schema, data modeling, and performance tuning
  • Documenting all changes and activities to be reference in rollback scenarios and sharing knowledge
  • Apply the critical changes after attending CAB meetings
  • Apply ITIL principals while fixing issues and apply the changes
  • Managing and administrating Oracle Golden Gate environments
  • Administrating and managing Oracle engineering systems like EXADATA X4/X6 and Super Cluster M7 Environments
  • Creating scripts to automate some database tasks which monitoring the database
  • Participate on load test activity to identify any issue before going live
Vodafone Telecommunications
11 months
2016-01 - 2016-11

Design, implementation and management of the database infrastructure

Senior DBA
Senior DBA

Responsible for design, implement and administrate all Oracle Database infrastructure:

  • Perform the capacity planning required to create and maintain all Oracle databases on Unix,
  • Linux and AIX environments.
  • Creating, administrating and maintaining+50 staging and production database environments.
  • Performs ongoing tuning of all production databases to improve the performance.
  • Plans and implements backup and recovery strategy of all databases using RMAN.
  • Troubleshooting all databases performance issues using Oracle tools (AWR, ASH, ADDM, Statspack, tkprof, OEM).
  • Migrating single database instances to Oracle RAC environments.
  • Managing and administrating Data Warehouse and OLAP databases.
Fawry Integrated Systems (Payment Solutions)
3 years
2013-01 - 2015-12

Troubleshooting complex database problems

Senior Database Support Engineer
Senior Database Support Engineer

The main role is troubleshooting complex database problems requiring high level technical expertise and product knowledge:

  • Receive customer issue via ticket system then investigate and provide action plans to fix the problem
  • Build test cases internally if needed during the investigation stage
  • Actively share knowledge via Training sessions, mentoring and creating knowledge base Articles
  • Consults with Management in directing resolution of critical Customer situations
  • Consults with Customers on complex use of Oracle products
  • Participates in initiatives that improve overall product and documentation quality
  • Proactively contribute to increasing the team?s efficiency by sharing knowledge and providing feedback about best practices, writing tools/ utilities
Oracle Corporate
3 years 9 months
2009-04 - 2012-12

Management of all databases

Database and Application Support Specialist
Database and Application Support Specialist

Responsible for administrating all database and supporting all application up and running

  • Provide a second line support service24/7 for all applications and Oracle/ MSSQL database issues
  • Resolve all tickets that wereescalatedfromthe1?st line support team in Remedy system
  • Creating, administrating, and maintaining for production database environments including Oracle and MSSQL
  • Performs ongoing tuning of all production databases to improve the performance
  • Plans and implements backup and recovery strategy of all databases using RMAN
  • Upgrade all production databases to latest Oracle database version and apply all critical patches
  • Troubleshooting all databases performance issues using Oracle tools (AWR, ADDM, etc)
  • Ensure the day-to?day operation of all applications and its databases with minimal downtime and ensure high availability for applications
International Turnkey Systems (ITS)

Aus- und Weiterbildung

Aus- und Weiterbildung

2004 - 2008

Study - Computers and Information

Faculty of computer and information/ University Cairo

Major: Information Technology

Minor: Information Systems

Degree: Bachelor / Grade: Very Good


COURSES AND CERTIFICATES

  • UNIX Shell Scripting for Administrators.
  • Solaris System Administration I& II.
  • AWS Certified Cloud Practitioner.
  • AWS Certified Solutions Architect ? Associate
  • Migration Ambassador Foundations (Business) 2022
  • Oracle Database 10g Administrator Certified Professional
  • Oracle Database 11g Administrator Certified Professional
  • Oracle Database 12C Administrator Certified Professional
  • Oracle Database 11g Performance Tuning Certified Expert.
  • Oracle Certified Expert, Oracle Real Application Clusters 11g Grid Infrastructure Administrator.
  • Oracle Autonomous Database Cloud 2019 Certified Specialist.
  • Oracle Cloud Infrastructure 2019 Certified Architect Associate
  • Oracle Cloud Infrastructure 2019 Certified Architect Professional
  • EDB PostgreSQL Advanced Server 10 Associate Certification

Vertrauen Sie auf Randstad

Im Bereich Freelancing
Im Bereich Arbeitnehmerüberlassung / Personalvermittlung

Fragen?

Rufen Sie uns an +49 89 500316-300 oder schreiben Sie uns:

Das Freelancer-Portal

Direktester geht's nicht! Ganz einfach Freelancer finden und direkt Kontakt aufnehmen.