Yusuf Congar - Senior Software Engineer C# | C++ | Java | JS | Microservices | Vert.x | OSGI | IoT | Hardware

Q: Where is Yusuf based?

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

Q: What languages does Yusuf speak?

Yusuf speaks the following languages: German (Native), Turkish (Native), English (Intermediate) .

Q: How many years of experience does Yusuf have?

Yusuf has at least 15 years of experience. During this time, Yusuf has worked in at least 7 different roles and for 8 different companies . The average length of individual experience is 2 years and 10 months . Note that Yusuf may not have shared all experience and actually has more experience.

Q: What is Yusuf's latest experience?

Yusuf's most recent position is Senior Software Engineer at LeiKon GmbH .

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

In recent years, Yusuf has worked for LeiKon GmbH , Elettronica GmbH , and GVW / Fenris Group GmbH .

Q: Which industries is Yusuf most experienced in?

Yusuf is most experienced in industries like Manufacturing , Automotive , and Transportation . Yusuf also has some experience in Food and Beverage , Sport , and Aerospace and Defense .

Q: Which business areas is Yusuf most experienced in?

Yusuf is most experienced in business areas like Information Technology , Operations , and Product Development . Yusuf also has some experience in Production , Quality Assurance , and Customer Service .

Q: Which industries has Yusuf worked in recently?

Yusuf has recently worked in industries like Manufacturing , Sport , and Aerospace and Defense .

Q: Which business areas has Yusuf worked in recently?

Yusuf has recently worked in business areas like Information Technology , Product Development , and Research and Development .

Recommended expert

Würselen, Germany

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Experience

Feb 2023 - Jun 2026

3 years 5 months

Herzogenrath, Germany

On-site

Senior Software Engineer

LeiKon GmbH

Development of scalable backend applications with C#/.NET and Java
Design and implementation of distributed microservice architectures
Development and integration of REST APIs for industrial applications
Development of modern web applications with React, Angular, and TypeScript
Implementation of MQTT-based communication solutions
Integration of industrial protocols such as OPC UA and Modbus TCP
Development of batch, process control, and HMI components
Containerization and deployment of applications with Docker
Conducting code reviews and supporting architecture decisions
Close collaboration with product owners, QA, and interdisciplinary teams
Analysis of business requirements and implementation of technical solutions
Further development of existing software architectures with a focus on maintainability and performance

Technologies: C#, .NET, ASP.NET Core, Java, C++, React, Angular, TypeScript, Vue.JS, MQTT, OPC UA, Modbus TCP, Docker, GitLab, MariaDB, MySQL, Linux

Mar 2022 - Jan 2023

11 months

Meckenheim, Germany

Remote

Software Engineer

Elettronica GmbH

Development of a simulation platform for radar and electronic warfare systems
Development of modern desktop applications with C#, WPF, and MVVM
Development of distributed microservices for simulation components
Implementation of high-performance data streaming components in C++ under Linux
Processing of large amounts of data over 10-Gbit networks
Development of hardware-near software for radar and sensor systems
Implementation of control modules for pan/tilt units
Deployment and automation using shell scripts
Contribution to international defense projects

Technologies: C#, C++, .NET, WPF, MVVM, Linux, Docker, Git, TeamCity, Shell

Oct 2020 - Feb 2022

1 year 5 months

Würselen, Germany

On-site

Software Engineer

GVW / Fenris Group GmbH

Development of a desktop application for analyzing golf movements
Development of high-performance backend components for processing large amounts of data
Processing and analysis of high-speed camera data
Development of mathematical analysis and calculation algorithms
Implementation of interactive visualizations and reports
Preparation of a mobile application with React and TypeScript
Performance optimization of data-intensive calculations
Close collaboration with domain experts to further develop the analysis methods

Technologies: C#, .NET Framework, WPF, React, TypeScript, SQL Server

Feb 2017 - Sep 2020

3 years 8 months

Aachen, Germany

On-site

Software Developer / Team Lead Production

Continental AG

Development of internal software solutions with C# and WPF
Digitalization and optimization of production processes
Development of reporting and analysis tools
Visualization and analysis of production data
Optimization of quality and manufacturing processes
Technical lead of a production team working in shifts
Collaboration with production, quality assurance, and maintenance

Technologies: C#, .NET Framework, WPF, SQL Server

Sep 2016 - Mar 2017

7 months

Aachen, Germany

On-site

Student Assistant – Software Development

RWTH Aachen

Development of a web-based application for capturing and analyzing medical research data
Processing of large Excel datasets
Development of interactive charts and visualizations
Implementation of user-friendly input forms
Support for statistical evaluations

Technologies: JavaScript, HTML5, CSS3, D3.js, jQuery Mobile, Excel

Sep 2016 - Feb 2017

6 months

Herzogenrath, Germany

On-site

Scientific Assistant – Software Development

Pulsar Photonics GmbH

Development of modular desktop applications with C# and WPF
Development of HMI components for industrial laser systems
Development of hardware-near software for machine control
Integration of sensors, actuators, and field bus systems
Development of communication interfaces (TCP/IP, Modbus, REST)
Development of mathematical algorithms for image processing and process control
Implementation of OpenCV-based image processing
Development of high-performance backend components
Collaboration with hardware, electronics, and automation engineers

Technologies: C#, C++, WPF, Windows Forms, OpenCV, SQL Server, MySQL, Git, TCP/IP, Modbus

May 2014 - Aug 2016

2 years 4 months

Aachen, Germany

On-site

Support in the family business

Marmaris Grill

Organization and coordination of daily operations
Responsibility for staff, ordering, and cash processes
Ensuring smooth day-to-day operations
Customer support and operational assistance

Sep 2011 - Apr 2014

2 years 8 months

Aachen, Germany

On-site

Junior Software Developer

EDS Systemtechnik GmbH

Development of simulation software for Deutsche Bahn rail systems
Development of hardware-near applications in C++ and C#
Development of diagnostic and monitoring solutions
Implementation of serial communication interfaces (RS232)
Development of test tools and printer emulations
Carrying out technical analyses and requirement engineering
Development of internal tools for long-term data collection
Support during commissioning and error analysis

Technologies: C++, C#, MFC, Linux, Shell, RS232, Git

Industry Experience

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

Experienced in Manufacturing, Automotive, Food and Beverage, Transportation, Sport, and Aerospace and Defense.

Manufacturing

Automotive

Food and Beverage

Transportation

Sport

Aerospace and Defense

Business Area Experience

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

Experienced in Information Technology, Operations, Product Development, Production, Quality Assurance, and Customer Service.

Information Technology

Operations

Product Development

Production

Quality Assurance

Customer Service

Summary

I am a Senior Software Engineer with over 10 years of professional experience in developing scalable software solutions, with a focus on C#/.NET. My main focus is on designing and developing modern backend systems, microservices, and REST APIs, as well as building high-performance fullstack applications with React and Angular.

I have extensive experience in Clean Architecture, object-oriented software development, Entity Framework Core, SQL databases, and integrating distributed systems and interfaces. I have also completed many industrial and IoT projects, including work with MQTT, OPC UA, and Modbus TCP.

My strengths include analyzing complex requirements, developing maintainable software architectures, and taking technical responsibility within interdisciplinary teams. I work in a structured, solution-oriented way and place great value on code quality, testability, and sustainable software development.

Technologies: C#, .NET 6–10, ASP.NET Core, Entity Framework Core, REST APIs, Microservices, React, Angular, TypeScript, SQL Server, PostgreSQL, Docker, Git, Azure DevOps, GitHub Actions, MQTT, OPC UA, Modbus TCP, Clean Architecture, DDD, CQRS.

Skills

Digital Data Processing (It)/Software Tools:

Windows Operating System: Very Good Knowledge
Mac Os X Operating System: Good Knowledge
Linux Operating System: Good Knowledge
Microsoft Office: Very Good Knowledge
Microsoft Visual Studio: Very Good Knowledge
Eclipse: Good Knowledge
Wireshark: Basic Knowledge
Xcode (Ios): Basic Knowledge
Xamarin: Good Knowledge
Maui: Basic Knowledge
Android Sdk: Good Knowledge
Python Ide: Good Knowledge
Git: Good Knowledge
Qt: Basic Knowledge
Halcon: Basic Knowledge
Mysql: Good Knowledge
Heidi: Good Knowledge
Mariadb: Good Knowledge
Sqlite: Good Knowledge
Entity Framework: Very Good Knowledge
Docker: Good Knowledge
Opencv: Good Knowledge
Mongodb: Basic Knowledge
Nodejs: Basic Knowledge
Akka.Net (Clustering): Good Knowledge

Project Management:

Scrum: Good Knowledge
Gantt Chart: Basic Knowledge

Software Development:

Scrum: Good Knowledge
Frontend Development: Very Good Knowledge
Backend Development: Very Good Knowledge
Embedded: Basic Knowledge
Iot: Basic Knowledge
Database Development: Good Knowledge
Sw Architecture: Good Knowledge
Process Automation: Good Knowledge
Image Processing: Good Knowledge
Deployment: Good Knowledge
Unit Testing: Good Knowledge
Interfaces: Very Good Knowledge

Command And Programming Languages:

C/C++: Very Good Knowledge
C#: Very Good Knowledge
Java: Good Knowledge
Javascript: Basic Knowledge
React: Good Knowledge
Typescript: Good Knowledge
Vue.Js: Good Knowledge
Vb: Good Knowledge
Python: Basic Knowledge
Css/Html: Good Knowledge
Asp.Net: Very Good Knowledge
Xml: Good Knowledge
Xaml Wpf: Very Good Knowledge
Sql: Good Knowledge

Languages

German

Native

Turkish

Native

English

Intermediate

Education

Sep 2011 - Feb 2014

BWV Aachen

Training with IHK certification · IT specialist in application development · Aachen, Germany

Training company: EDS Systemtechnik GmbH

Sep 2008 - May 2011

Aachen University of Applied Sciences

without degree · Electrical Engineering / Computer Science · Aachen, Germany

Started in Electrical Engineering program
Changed program to Computer Science

Aug 2006 - Jun 2008

Fachoberschule Mies-van-der-Rohe Aachen

University of Applied Sciences entrance qualification · Electrical Engineering · Aachen, Germany

...and 1 more

Certifications & licenses

Driver's license class B

IHK final certificate as application developer

Statistics

Experience

Total positions 8

Experience in Manufacturing 7.5 y

Avg length 1 y 10 m

Longest experience 3 y 7 m

Global Experience

Countries worked in 1 (Germany)

Primary country Germany

Expertise

Recent roles Senior Software Engineer, Software Engineer, Software Developer / Team Lead Production

Main industries Manufacturing, Automotive, Food and Beverage

Main business areas Information Technology, Operations, Product Development

Qualifications

Highest degree Bachelor

Certifications earned 2

Profile

Created

August 2025

Last Update

July 2026

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Frequently asked questions

Have questions? Find more information here.

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

Yusuf speaks the following languages: German (Native), Turkish (Native), English (Intermediate).

Yusuf has at least 15 years of experience. During this time, Yusuf has worked in at least 7 different roles and for 8 different companies. The average length of individual experience is 2 years and 10 months. Note that Yusuf may not have shared all experience and actually has more experience.

Based on recent experience, Yusuf would be well-suited for roles such as: Senior Software Engineer, Software Engineer, Software Developer / Team Lead Production.

Yusuf's most recent position is Senior Software Engineer at LeiKon GmbH.

In recent years, Yusuf has worked for LeiKon GmbH, Elettronica GmbH, and GVW / Fenris Group GmbH.

Yusuf is most experienced in industries like Manufacturing, Automotive, and Transportation. Yusuf also has some experience in Food and Beverage, Sport, and Aerospace and Defense.

Yusuf is most experienced in business areas like Information Technology, Operations, and Product Development. Yusuf also has some experience in Production, Quality Assurance, and Customer Service.

Yusuf has recently worked in industries like Manufacturing, Sport, and Aerospace and Defense.

Yusuf has recently worked in business areas like Information Technology, Product Development, and Research and Development.

Yusuf holds a Bachelor in Electrical Engineering / Computer Science from Aachen University of Applied Sciences.

Yusuf has 2 certificates. These include: Driver's license class B and IHK final certificate as application developer.

Yusuf is immediately available full-time for suitable projects.

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

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