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Mahmoud (Ahmed) Reda

Oracle Database and Cloud Administrator

Mahmoud Reda
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Unterhaching, Germany

Experience

Oct 2023 - Present
2 years 6 months

Database Administrator

Deutsche Pfandbriefbank

Expertise details
Position Summary
Database Administrator at Deutsche Pfandbriefbank
Industries
Banking and Finance
Business Areas
Information Technology
  • Provision and operation of Oracle databases within the agreed service levels.
  • Storage administration using Oracle ASM feature.
  • Oracle Grid Infrastructure and database patching.
  • Ensure SLAs and operational KPIs are met, coordinating internal and external support during major incidents.
  • Create and exercise reliable backup strategies and periodic restorations.
  • Plan and execute migrations from non-multitenant to multitenant architectures and consolidate databases into multiple containers.
  • Configure Oracle database authentication with Kerberos.
  • Deploy and administer Azure Database for PostgreSQL (Flexible Server) including configuration, scaling, and high availability setup.
  • Migrate on-premises PostgreSQL databases to Azure using pg_dump/pg_restore, pg_dumpall, and Azure Database Migration Service.
  • Configure backup and point-in-time restore policies for compliance and recovery objectives.
  • Implement monitoring and alerting with Azure Monitor, Log Analytics, and custom dashboards.
  • Perform query performance tuning by analyzing execution plans, optimizing indexes, and adjusting parameters (work_mem, shared_buffers, autovacuum).
  • Collaborate with developers to implement schema design improvements, partitioning, and connection pooling (PgBouncer) for scalability.
Oct 2021 - Sep 2023
2 years

Senior Oracle Database Administrator

Getnet-PagoNxt Merchant Solutions

Expertise details
Position Summary
Senior Oracle Database Administrator at Getnet-PagoNxt Merchant Solutions
Industries
Banking and Finance
Business Areas
Information Technology
  • Support database instances according to defined policies, processes, and procedures.
  • Develop and document standard operating procedures and general technical documentation.
  • Monitor running database systems and related products.
  • Design and implement database architecture, including high availability.
  • Coordinate day-to-day tasks with developers to meet project deliverables and schedules.
  • Support and maintain data and database systems to meet business requirements.
  • Perform patching and upgrades of databases and Exadata machines.
  • Administer Kafka using GitLab and command line.
  • Install and configure Liquibase using GitLab.
  • Apply basic Ansible scripting and CI/CD practices.
Dec 2020 - Sep 2021
10 months

Senior Support Engineer

EnterpriseDB (EDB)

Expertise details
Position Summary
Senior Support Engineer at EnterpriseDB (EDB)
Industries
Information Technology
Business Areas
Customer Service
Information Technology
  • Provide in-depth technical troubleshooting and recommend workarounds for all EDB and open-source PostgreSQL products.
  • Collaborate with and mentor junior and mid-tier support engineers to triage issues, create reproducible test cases, file development requests, and offer patches when possible.
  • Work with development teams, including core PostgreSQL community contributors, to identify bugs and performance bottlenecks.
  • Serve as the primary point of contact for premium customers on priority engagements.
Jun 2019 - Nov 2020
1 year 6 months

Senior Oracle Database Administrator

Wirecard Service Technologies GmbH

Expertise details
Position Summary
Senior Oracle Database Administrator at Wirecard Service Technologies GmbH
Industries
Banking and Finance
Business Areas
Information Technology
  • Support database instances according to defined policies, processes, and procedures.
  • Develop and document standard operating procedures and general technical documentation.
  • Monitor running database systems and related products.
  • Design and implement database architecture, including high availability.
  • Conduct proof of concept for Oracle GoldenGate replication from Oracle Database to Kafka using Oracle GoldenGate Handler.
  • Migrate and upgrade databases from 11.2.0.4 to 19.6 multitenant using Data Guard, including manual upgrades and conversion to PDB.
  • Execute near-zero-downtime migrations using GoldenGate during data center server switches.
Apr 2011 - May 2019
8 years 2 months

Principal Oracle DBA Advanced Support Engineer

Oracle Corporation

Expertise details
Position Summary
Principal Oracle DBA Advanced Support Engineer at Oracle Corporation
Industries
Information Technology
Business Areas
Customer Service
Information Technology
  • Provide specialized DBA technical and functional assistance to Oracle customers worldwide.
  • Troubleshoot and support highly complex technology and software application implementations.
  • Manage and resolve customer service requests on Oracle products, contributing to proactive support activities.
  • Own problem resolution and manage customer expectations throughout service request life-cycles according to global standards.
  • Contribute to process and tool improvements and to knowledge management content (Metalink).
  • Work with development on product improvement programs, including testing and beta programs.
  • Operate in line with bug diagnosis and escalation guidelines.
  • Participate in remote patching for Oracle Platinum customers (AM&R team).

Key support areas:

  • General database administration and maintenance
  • Patch installation and upgrades
  • Troubleshooting and emergency issue resolution
  • Backup, recovery, and database security procedures
  • Oracle Net services configuration and tracing

Key projects:

  • Vodafone Egypt: Private Cloud implementation, grid infrastructure and database home installations and patching on SuperCluster (T8/M8), database provisioning for 30 databases.
  • MTN Nigeria and Ghana: Migrations and upgrades of large databases to RAC and Exadata with minimal downtime, data compression using HCC.
  • Commercial Bank of Africa (CBA Kenya): Cross-platform migrations of 30 core banking databases to SuperCluster.
  • QNB Qatar: Migration of 8 databases to Exadata using various methods, TDE implementation.
  • Vodafone Egypt: InfiniBand bond changes and Exadata cluster expansions, onsite support for large telecom databases, Exadata patching across EMEA customers.
  • Ageas Portugal, Morrisons UK, Network Rail UK, MTN Côte d'Ivoire, Equity Bank Kenya, ADDC UAE, Etisalat UAE: Exadata and backup appliance configurations, high availability tests, replication and ODS solutions using GoldenGate and Veridata.
  • Kuwait Finance House (KFH), HMC Qatar, EMasary Egypt, Qatar Central Bank (QCB): Advanced security, ASM reconfigurations, Oracle Audit Vault, Database Firewall implementations.
Nov 2006 - Apr 2011
4 years 6 months

Senior Technical Consultant

Egabi Solutions

Expertise details
Position Summary
Senior Technical Consultant at Egabi Solutions
Industries
Information Technology
Business Areas
Information Technology
  • Perform database consultation tasks for customers including Ministry of Industry, Bank Misr, and others.
  • Implement and configure Oracle Real Application Cluster (RAC) and Data Guard solutions.
  • Use import/export utilities for logical backups and SQL*Loader for bulk data loads.
  • Configure RMAN for full and incremental backups on various platforms.

Training responsibilities:

  • Conduct courses in Oracle RAC 10g, Oracle Database 10g Workshop 1 & 2, Oracle10g Security, and Oracle 10g Enterprise Manager Grid Control.

Key projects:

  • Ministry of Industry (Egypt): Configuration of Oracle Collaboration Suite 10 and RAC 10g on Windows Server.
  • Bank Misr (Egypt): RAC 10g on AIX HACMP.
  • Exports and Development Bank (Sudan): Data Guard for ATM application.
  • Military Information Data Center (Egypt): RAC and ASM on AIX HACMP.
  • Central Bank of Egypt (Egypt): RAC 10g on Solaris over Sun Cluster.
  • Bank of Alexandria (Egypt): AIX support for Oracle Database 9.2.
  • Ministry of Interior (Egypt): Oracle Fail Safe and RMAN backups on Tivoli.
  • MediTel (Morocco): RAC 10g on HP-UX Serviceguard.
  • National Security Authority (Egypt): Multi-node RAC and Data Guard on AIX HACMP.
  • Egyptian Arab Land Bank (Egypt): Database Vault implementation for PCI compliance.
  • Egyptian Credit Bureau (Egypt): RAC and Database Vault on Solaris.
  • National Water Company (KSA): Oracle ERP R12 multi-tier installation.
  • Saggaf Pharmacies (KSA): ERP cloning and site support for Oracle 10g and 11.5.9.
  • Du Mobile Network (Dubai): RAC on Solaris with QFS.
  • Saudi Snacks Foods (KSA): Upgrades and support for Oracle 9i/10g.
  • Ministry of Water and Electricity (KSA): Upgrades, migrations, RMAN with NetBackup, cross-platform migrations, and security management.
  • Ministry of Health (KSA): RAC migrations and materialized view replication.
  • Orascom Telecom (Algeria): Grid Control disaster recovery and integrations with SQL Server, DB2, and HP OpenView.
  • Mediterranean Smart Cards Company (Egypt): RAC health checks and load balancing.
  • Multiple training engagements for Oracle partners and academies in the Middle East and India.
Jan 2006 - Oct 2006
10 months

Oracle DBA Specialist

EMAK International Academy

Expertise details
Position Summary
Oracle DBA Specialist at EMAK International Academy
Industries
Education
Information Technology
Business Areas
Information Technology
  • Conduct Oracle technology training for clients such as Oracle GPS and Arab Construction Bank.
  • Teach courses in Oracle SQL 10g, Oracle Database 9i Fundamentals 1 & 2, Oracle Database 10g Workshops 1 & 2, 10g New Features for Administrators, and Oracle Enterprise Manager 10g Grid Control.
  • Install and configure Oracle Application Server 10g on multiple platforms.
  • Implement and configure Data Guard high availability solutions.
  • Administer Oracle security solutions.
Nov 2005 - Dec 2005
2 months

Training

Emak International Academy

Expertise details
Position Summary
Training at Emak International Academy
Industries
Education
Business Areas
Information Technology
  • Oracle Database 10g: SQL
  • Oracle 10g Database Administration Workshop I
  • Oracle 10g Database Administration Workshop II
  • Oracle Database 10g: Develop PL/SQL Program Units
  • Oracle Enterprise Manager 10g Grid Control
Oct 2004 - Oct 2004
1 month

Training

Cairo University

Expertise details
Position Summary
Training at Cairo University
Industries
Information Technology
Business Areas
Information Technology
  • Cisco Certified Network Associate (CCNA)
  • Linux RedHat Administration

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Banking and Finance, and Education.

Information Technology
Banking and Finance
Education
Profile match chart

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology and Customer Service.

Information Technology
Customer Service
Profile match chart

Skills

  • Unix
  • Oracle
  • Windows Nt
  • Ccna
  • Visual Basic

Languages

Arabic
Native
English
Advanced
German
Intermediate

Education

Oct 2000 - Jun 2005

Mansoura University

B.S., Communications and Electronics Engineering · Communications and Electronics Engineering · Mansoura, Egypt

Certifications & licenses

ITIL 4 Foundation

Cisco Certified Network Associate (CCNA)

Oracle Database Cloud Service Certified Associate

Statistics

Experience

Total positions 9
Experience in Information Technology 14 y
Avg length 2 y 2 m
Longest experience 8 y 1 m

Expertise

Recent roles Database Administrator, Senior Oracle Database Administrator, Senior Support Engineer
Main industries Information Technology, Banking and Finance, Education
Main business areas Information Technology, Customer Service

Qualifications

Highest degree Bachelor
Certifications earned 3

Profile

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Mahmoud based?

Mahmoud is based in Unterhaching, Germany and can operate in on-site, hybrid, and remote work models.

What languages does Mahmoud speak?

Mahmoud speaks the following languages: Arabic (Native), English (Advanced), German (Intermediate).

How many years of experience does Mahmoud have?

Mahmoud has at least 20 years of experience. During this time, Mahmoud has worked in at least 7 different roles and for 9 different companies. The average length of individual experience is 2 years and 3 months. Note that Mahmoud may not have shared all experience and actually has more experience.

What roles would Mahmoud be best suited for?

Based on recent experience, Mahmoud would be well-suited for roles such as: Database Administrator, Senior Oracle Database Administrator, Senior Support Engineer.

What is Mahmoud's latest experience?

Mahmoud's most recent position is Database Administrator at Deutsche Pfandbriefbank.

What companies has Mahmoud worked for in recent years?

In recent years, Mahmoud has worked for Deutsche Pfandbriefbank, Getnet-PagoNxt Merchant Solutions, and EnterpriseDB (EDB).

Which industries is Mahmoud most experienced in?

Mahmoud is most experienced in industries like Information Technology, Banking and Finance, and Education.

Which business areas is Mahmoud most experienced in?

Mahmoud is most experienced in business areas like Information Technology and Customer Service.

Which industries has Mahmoud worked in recently?

Mahmoud has recently worked in industries like Banking and Finance and Information Technology.

Which business areas has Mahmoud worked in recently?

Mahmoud has recently worked in business areas like Information Technology and Customer Service.

What is Mahmoud's education?

Mahmoud holds a Bachelor in Communications and Electronics Engineering from Mansoura University.

Does Mahmoud have any certificates?

Mahmoud has 3 certificates. These include: ITIL 4 Foundation, Cisco Certified Network Associate (CCNA), and Oracle Database Cloud Service Certified Associate.

What is the availability of Mahmoud?

Mahmoud is immediately available for suitable projects.

What is the rate of Mahmoud?

Mahmoud's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

How to hire Mahmoud?

To hire Mahmoud, click the Meet button on the profile to request a meeting and discuss your project needs.

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Market avg: 820-980 €
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