Younes Hadrous - Senior Backend Developer

Q: Where is Younes based?

Younes is based in Grevenbroich, Germany .

Q: What languages does Younes speak?

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

Q: How many years of experience does Younes have?

Younes has at least 21 years of experience. During this time, Younes has worked in at least 9 different roles and for 10 different companies . The average length of individual experience is 2 years and 1 month . Note that Younes may not have shared all experience and actually has more experience.

Q: What is Younes's latest experience?

Younes's most recent position is Senior Backend Developer at PTA .

Q: What companies has Younes worked for in recent years?

In recent years, Younes has worked for PTA and Ominicom Media Group .

Q: Which industries is Younes most experienced in?

Younes is most experienced in industries like Information Technology (IT) , Government and Public Administration , and Advertising . Younes also has some experience in Education , Aerospace and Defense , and Insurance .

Q: Which business areas is Younes most experienced in?

Younes is most experienced in business areas like Information Technology (IT) , Business Intelligence , and Project Management . Younes also has some experience in Accounting , Finance , and Human Resources (HR) .

Q: Which industries has Younes worked in recently?

Younes has recently worked in industries like Advertising and Food and Beverage .

Q: Which business areas has Younes worked in recently?

Younes has recently worked in business areas like Information Technology (IT) , Business Intelligence , and Project Management .

Recommended expert

Grevenbroich, Germany

Experience

Dec 2023 - Present

2 years 3 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

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (6 years), Government and Administration (5.5 years), Advertising (4.5 years), Education (3.5 years), Aerospace and Defense (3 years), and Insurance (3 years).

Information Technology

Government and Administration

Advertising

Education

Aerospace and Defense

Insurance

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (20 years), Business Intelligence (8.5 years), Project Management (4.5 years), Accounting (3 years), Finance (3 years), and Human Resources (3 years).

Information Technology

Business Intelligence

Project Management

Accounting

Finance

Human Resources

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.

Languages

Arabic

Native

German

Advanced

English

Advanced

Education

-

Master in Web Science, focus on Data Mining and Distributed Application Programming · Web Science · Damascus, Syrian Arab Republic · 76.86/100 very good

-

Bachelor in Information Technology (IT), focus on Database Architecture and Design, Software Engineering, Data & · Information Technology (IT) · Damascus, Syrian Arab Republic · 72.52/100 very good

-

Diploma in Computer Science · Computer Science · Damascus, Syrian Arab Republic · 70.33/100 very good

...and 1 more

Certifications & licenses

Datorama Admin/ Champion

Germany, Düsseldorf

Bootcamp Ii: (Presentations and Communications skills)

Germany, Stuttgart

Bootcamp: (Presentations and Communications skills)

Germany, Munich

Scrum Master

Germany, Ratingen

Amazon Web Services

Germany, Ratingen

Software Engineering Design Principles

Germany, Munich

Cmmi (Product Development)

Syria, Damascus

Oracle Erp Essentials

Syria, Damascus

Mcts (Microsoft Certificate Technical Specialist)

Syria, Damascus

Ict Standards, Planning, Analysis & Design

Syria, Damascus

Itpepi (International Training Program in E-Governance-Planning and Implementation)

India, New Delhi

Business Modeling And Process Engineering

Syria, Damascus

Oracle 9i Database Administrator (OCP)

Syria, Damascus

Ciw (Certificate Internet Webmaster)

Syria, Damascus

Object Oriented Programming With Java

Syria, Damascus

Ms Project 2003

Syria, Damascus

Profile

Created

August 2025

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Frequently asked questions

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

Where is Younes based?

Younes is based in Grevenbroich, Germany.

What languages does Younes speak?

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

How many years of experience does Younes have?

Younes has at least 21 years of experience. During this time, Younes has worked in at least 9 different roles and for 10 different companies. The average length of individual experience is 2 years and 1 month. Note that Younes may not have shared all experience and actually has more experience.

What roles would Younes be best suited for?

Based on recent experience, Younes would be well-suited for roles such as: Senior Backend Developer, Group Manager Data Solutions, Senior ETL Developer.

What is Younes's latest experience?

Younes's most recent position is Senior Backend Developer at PTA.

What companies has Younes worked for in recent years?

In recent years, Younes has worked for PTA and Ominicom Media Group.

Which industries is Younes most experienced in?

Younes is most experienced in industries like Information Technology (IT), Government and Public Administration, and Advertising. Younes also has some experience in Education, Aerospace and Defense, and Insurance.

Which business areas is Younes most experienced in?

Younes is most experienced in business areas like Information Technology (IT), Business Intelligence, and Project Management. Younes also has some experience in Accounting, Finance, and Human Resources (HR).

Which industries has Younes worked in recently?

Younes has recently worked in industries like Advertising and Food and Beverage.

Which business areas has Younes worked in recently?

Younes has recently worked in business areas like Information Technology (IT), Business Intelligence, and Project Management.

What is Younes's education?

Younes holds a Master in Web Science from - and a Bachelor in Information Technology (IT) from -.

Does Younes have any certificates?

Younes has 16 certificates. Among them, these include: Datorama Admin/ Champion, Bootcamp Ii: (Presentations and Communications skills), and Bootcamp: (Presentations and Communications skills).

What is the availability of Younes?

Younes is immediately available for suitable projects.

What is the rate of Younes?

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