Younes Hadrous - Senior Backend Developer

Grevenbroich, Germany

Experience

Dec 2023 - Present

2 years 2 months

Senior Backend Developer

PTA

Development and maintenance of database-driven applications for managing supplier and food contracts, using Oracle PL/SQL extensively for complex business logic and data processing
Optimization of PL/SQL procedures, functions, and triggers to ensure the performance and scalability of Oracle database solutions
Ensuring adherence to best practices in PL/SQL development and implementing standards for code quality and data integrity
Close collaboration with backend and frontend teams to ensure seamless integration between the Oracle database, C#-based APIs, and Azure cloud services

Jun 2019 - Dec 2023

4 years 7 months

Düsseldorf, Germany

Group Manager Data Solutions

Ominicom Media Group

Design, development, and testing of internal agency applications with Oracle APEX, including user-friendly interfaces and efficient database connectivity
Development of integration interfaces between Oracle APEX and external ERP systems via REST APIs for seamless system communication
Performance tuning of complex SQL and PL/SQL scripts to efficiently and scalably implement demanding transformation requirements
ETL development with Pentaho for data integration and preparation for Oracle-based applications
Responsible for SAP BO Universe and user security, focusing on data access control and reporting structures
Scrum Master role to coordinate agile development processes and foster cross-team collaboration

Feb 2019 - May 2019

4 months

Düsseldorf, Germany

Senior ETL Developer

C&A Buying GmbH & Co. KG

Design, development, and testing of back-end ETL processes from various sources (DB2, CSV, Excel, XML)
Supporting the implementation of complex data loading and transformation requirements
Working in an environment with Teradata 15.10.1.18, Ab Initio Co>Operating System 3.2.4.7, GDE 3.2.7.2, Express>It 3.2.4, and SAP PowerDesigner 16.6

Dec 2016 - Jan 2019

2 years 2 months

Düsseldorf, Germany

Application Consultant

Capgemini

Development of integration interfaces between SAP systems and Informatica P360, including documentation, testing, and end-user support
Development and performance tuning of back-end ETL processes for data warehouse loading and transformation with a focus on performance and scalability
Support in data migration and software updates by developing utilities for migration and upgrade processes
Implementation and performance tuning of Oracle- and Java-based solutions using shell scripts

Feb 2016 - Nov 2016

10 months

Bonn, Germany

Student

Acb lingua

Attended A1, A2, and B1 German courses

Oct 2015 - Jan 2016

4 months

Bonn, Germany

Software Development Intern

Deutsche Telekom

Development of a graphical user interface for Command Center KPIs with live data visualization and storage in MySQL
Research of suitable software solutions and setup of development and production environments
Provision of interfaces to data sources and implementation on a web server for versatile use

Feb 2014 - Nov 2014

10 months

Damascus, Syrian Arab Republic

ERP Specialist

Syriatel

System integration with Oracle EBS, development and testing of reports, and troubleshooting in the operational environment of a large mobile network infrastructure
Development of several interfaces between in-house systems and the ERP system
Training new colleagues in SQL and PL/SQL as an Oracle instructor

Apr 2011 - Jan 2014

2 years 10 months

Damascus, Syrian Arab Republic

Team Lead and Database Administrator

Scan-Syria

Development of a university program to manage student enrollments, exams, grades, and statistical reports
Automation of the billing system for arriving and departing aircraft for Syrian civil aviation
Implementation of an ERP system for sales, purchasing, human resources, and accounting
Development of a web application (psiquotes.com) for insurance activities to create leads and sales to insurance companies

Jan 2010 - Mar 2011

1 year 3 months

Damascus, Syrian Arab Republic

Team Lead and Database Administrator

SIST

Creation of new vendor services (ISPs, mobile operators) including designs of wizards, billing tables, and reports
Development of a kiosk payment and deposit system for monitoring status, location, and task management

Apr 2004 - Dec 2009

5 years 9 months

Damascus, Syrian Arab Republic

Database Administrator and Developer

Telecommunications Authority

Administration of all authority databases and development of a central system for personnel-related information
Support for the personnel and payroll system and the internal mail archiving system
Development of an IT system for automation, status updates, and reporting on foreign workers in Syria

Summary

Twenty years of experience in databases and software development, including over three years in a leadership position.

Skills

Programming Languages: Java, C#, Python, Php.
Databases: Oracle (Sql, Pl/sql, Apex), Microsoft Sql Server (Sql, Tsql, Dmx), Mysql, Postgresql, Ms Access.
Ides: Microsoft Visual Studio, Eclipse, Jdeveloper, Informatica Powercenter.
Web: Asp.net, Mvc, Html, Ajax, Sparql.
Operating Systems: Windows, Linux.
Other Skills: Microsoft Sharepoint, Wcf, Linq, Xpath, Xquery, Xsd, Xml Web Services, Shell Script, Data Mining, Oracle Business Intelligence (Obiee), Oracle Goldengate, R.