CODESYS Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used CODESYS
Volker Foitzik
Last position:
Technical Lead | Software Architect | Embedded Software Engineer at Hydac
- Development of safety-related embedded software for a mobile machine on a Hydac TTC 2390 controller.
- Implementation in C with consideration of SIL 3 / ASIL D and MISRA-C:2025.
- Implementation of communication via CAN, CANopen, and J1939.
Standards, guidelines and norms: ISO 26262, IEC 61508, MISRA-C:2025
Technologies: C99, Hydac TTC 2390, Infineon TriCore Aurix TC397, Hightec C/C++ Compiler, PC-lint Plus, CAN, CANopen, J1939, MISRA-C:2025
Emil Ostberg
Last position:
Automation Engineer In House at Prevas AB
Working as an Automation Engineer in Prevas' in-house engineering team. My primary assignment involves developing and expanding ABB 800xA SCADA systems for a large-scale data center project. Responsibilities include SCADA graphic design, alarm management, system integration using OPC UA and Modbus, testing, verification, documentation, and commissioning support. In addition, I contribute to PLC and HMI development projects using Siemens, Rockwell, and ABB platforms and provide 24/7 remote support for industrial customers.
- ABB 800xA & ControlBuilder/ AC800M
- Rockwell Studio 5000 Logix Designer
- Siemens TIA Portal
- ABB 800xA
- Remote Support
- Troubleshooting hardware/software
Ljubomir Obrenovic
Last position:
Senior Software Test Engineer at Keil KTM GmbH
Temporary employment
- System black-box integration tests (BBIT, IVVQ): Execution of regression, release, acceptance, and compliance tests for safety-critical brake control units in the rail industry
- Software test application & integration: Runtime configuration of software components and libraries, validation of interfaces, configuration dependencies, and component interactions
- Test automation (FEAT framework): Co-development and further development of an automated test framework for test execution, reporting, and result analysis
- Functional safety (SiL4, FuSi): Ensuring compliance with safety requirements, traceability and coverage, as well as standards compliance according to EN50126/28/29
- Test automation for communication components: Configuration and validation of fieldbus (CAN) and Ethernet-based TCMS data communication interfaces (TRDP and CIP)
- Requirements analysis & shift-left (PTC Windchill ALM): Analysis of software and system artifacts to identify gaps, ambiguities, and redundancies early in the SDLC
- Test design & test case development: Derivation of test conditions, coverage strategies, and implementation of data-driven test cases (DDT), including reusable test data fixtures
- CI/CD & automation (Python, PowerShell, Jenkins, SVN): Automation of build, test, and HIL deployment processes as well as integration into CI/CD pipelines
- Test data & configuration management (XML): Maintenance and adaptation of XML test vectors and system configurations with automated integration into test environments
- Non-functional testing: Execution of performance and load tests to assess stability and system behavior
- Agile development & defect management (JIRA, Confluence): Participation in Scrum teams, test coordination, review of test artifacts, as well as defect tracking and root-cause analysis
- Error analysis & debugging (CANoe, CANalyzer): Analysis of errors and message flows across multiple system layers (application to bus)
- Model-based analysis (UML, Enterprise Architect): Specification of SUT/SOW and support for systematic test control
- Process & test documentation: Creation of integration and test documentation according to internal quality and certification requirements
Jens-Uwe Peter
Last position:
Architecture and Programming for Automotive Test Bench Platform at Automotive Supplier
In this project, I was responsible for the design and implementation of a new, modular, and highly scalable test bench platform for an automotive supplier. My focus was on developing a robust system architecture and programming the associated software, with consistent use of UML modeling throughout. This structured approach made it possible to greatly increase the reusability of individual LabVIEW test modules and to significantly reduce development time for follow-up projects. I also integrated modern automotive standards such as CAN FD, LIN, and safety requirements, which made the solution future-proof.
Technologies: LabVIEW, Visio, UML, CAN FD, LIN, DMM, Safety, image processing, project management, HMI, C#, C++, Python, Rust, CI
Olfa Azzabi
Last position:
Senior Embedded Software Engineer / Function Developer at Enginius GmbH (FAUN GROUP)
- Developed model-based software for hydrogen tank control units using MATLAB/Simulink, aligned with ISO 26262 functional safety requirements
- Performed system integration and software verification across MIL and HIL environments using dSPACE and Vector tools
- Defined software architecture (SADS) with interface specifications for CAN, analog, and digital communication protocols
- Generated production-ready embedded C code using Simulink Embedded Coder; created and maintained A2L calibration files with CANape
- Designed and executed MIL/HIL test cases ensuring full coverage of functional and safety requirements
- Implemented CODESYS PLC applications on IFM ecomatController; applied CAN and Modbus TCP/IP communication protocols
- Contributed to HMI/UI development using Qt/C++ on Linux (Qt Creator)
- Applied agile Kanban workflow with Git-based version control (Bitbucket)
Tools: MATLAB, Simulink, CANape, CANalyzer, PCAN-View, Embedded Coder, CODESYS, TTC2038/PXROS, Codebeamer, Jira, Git
Daniel Sedlack
Last position:
Senior Software Engineer at energielenker solutions GmbH
- Designed and implemented a Python-based ETL pipeline with the Dagster framework to transform raw energy data from heterogeneous sources using InfluxDB and visualizations in Grafana
- Defined time-based and dependency-based jobs
- Deployed to managed Kubernetes clusters using Helm
- Integrated InfluxDB Cloud
- Prepared data for use in Grafana, including cleaning, normalization, and time-based resampling in Python
- Developed dashboards and visualizations in Grafana
- Developed unit tests with mocking using pytest
- Set up a CI/CD pipeline in GitLab
Technologies: Python, Dagster, InfluxDB, Grafana, pandas, pytest, REST, CI/CD, GitLab, Container, Kubernetes, Helm, Docker, Cloud
Kusay Tomeh
Last position:
Freelance System & Software Architect - DNA-Extraction Robot at QIAGEN GmbH
- System and software architecture for the QIA-symphony Connect DNA-extraction robot in Life Science / IVD automation.
- Designed features and control logic for extraction, pipetting, lysis and eluate modules using C++, PLC/ST (Beckhoff IPC / TwinCAT 3) and model-based concepts.
- Delivered ISO 13485-oriented requirements, architecture, unit/integration/regression tests and DHF/VEP/VER/TCL documentation.
- Used Polarion, Jira, Confluence, Azure and AI-assisted documentation to improve traceability and engineering efficiency.
Matthias Dräger
Last position:
Project Building Automation WAGO at Ingenieurbüro Dräger
- Topic: Programming of heating controls
- Client: Hoffbauer Foundation
- Requirements: Analysis of existing systems, reprogramming, commissioning, documentation
- Focus: Development of automation solutions and control systems
- Technology: Codesys 3.5
Basel Jaber
Last position:
Senior Application Engineer / Product Manager at Altran Magnetics LLC
- Oversee development and optimization of key products, including DP contactors, EMI filters, and circuit breakers.
- Lead certification processes ensuring compliance with UL, TÜV, and VDE standards.
- Act as technical liaison between customers, sales teams, and manufacturing to deliver customized solutions.
Michael Dobmeier
Last position:
Sole Proprietor at Unternehmens- und Managementberatung Michael Dobmeier
- Advising and technical implementation of AI integration and workflow automation for small and mid-sized businesses
- Building a multi-tenant AI agent platform as a product base
- Combining strategic consulting, technical implementation, and team enablement
Project examples:
- Development and architecture of the SOLUMiDO Agent-UI platform for integrating digital colleagues into business processes (Next.js, TypeScript, PostgreSQL, Keycloak)
- Development of the ToolChange Assistant: a multilingual, voice-controlled AI agent for optimizing setup times and reducing errors
- Implementation of an AI email assistant for intelligent email classification and processing with Microsoft 365 integration
- AI video marketing integration (STORYNEXT) for mid-sized companies, including AI-assisted briefing and performance analysis
- Social media content automation with AI text creation, approval workflow, and automatic publishing
- Business process analysis and digital solutions implementation for facility management service providers
- Digital consulting and web presence development for associations in rural areas
Wolfgang Steiner
Last position:
Software Developer / Aviation Commissioning Engineer at Vakuum Schmelze Hanau
- Development of automation software and commissioning of a pneumatic press for processing electrical sheet stator cores, including KUKA robot handling, process monitoring, and connected measurement systems for quality inspection and sorting.
Martin Schaefer
Last position:
MS Fabric Certification
MS Fabric certification with creation of pipelines and notebooks in Fabric using data from Azure, Azure Repos, Azure Boards, and GitHub. Data ingestion via OneLake Explorer, direct IP connection, and API (REST) are the main topics
Daniel Pohl
Last position:
Freelancer in industrial automation engineering at dPSolutions
- Independent work as a PLC and software specialist focusing on automation and custom machinery
- Programming, modernization, expansion and optimization of production plants with focus on efficiency improvements, data transparency and system integration
- PLC programming and safety with Siemens S7 Classic/TIA-Portal, Beckhoff TwinCAT 2/3 and CoDeSys
- Development of high-level language software and database applications (.NET / C#, C++, Visual Basic .NET, Borland/Embarcadero C++)
- Development of custom software solutions for industrial automation, including embedded systems (Raspberry Pi, Arduino, NodeMCU, ESP8266)
- System integration of external systems such as readers, printers, scales, scanners and cameras, as well as various fieldbus systems (Ethernet, Profinet, Profibus, EtherCAT, CAN bus, RS232, TCP/IP)
- Creation of visualizations and HMI applications with Siemens WinCC flexible, Beckhoff HMI and .NET front-ends
- Design, development and integration of machine vision solutions (Keyence, Cognex, AVS Alfavision, camera systems) in PLC and PC environments
- Design and implementation of process data acquisition systems and traceability solutions (100% traceability) based on Microsoft SQL Server (Compact, Express, Server) including stored procedures and direct PLC-SQL communication
- Creation of software and PLC concepts, standard function blocks and project libraries for PLC and high-level language projects
- Design and programming of conveyor, testing, assembly, packaging and grinding systems in industries such as automotive, chemical, food, electronics and machinery and plant engineering
- Conducting workshops and training on Siemens TIA-Portal, STEP7 Classic, Beckhoff TwinCAT (including TwinSAFE) as well as topics like architectures, safety, database integration and documentation
- Creation of technical documentation, manuals, training materials and class documentation with Microsoft Office and Doxygen
- Project management tasks from requirement analysis through planning, concept development and supplier coordination to commissioning, production support and maintenance
Alexander Bröcker
Last position:
Owner at PEMA-TEC Alexander Bröcker
- Project to develop the complete software for a film roll warehouse at American Packaging Corporation, Story City, Iowa (warehouse vehicles SINATIC S7, warehouse management C#, Microsoft SQL Server, AGV interface C++, ERP system interface REST API)
- Development of a warehouse simulator for real machine processes aimed at optimized storage of film rolls (C#)
- Project to develop the complete software for a printing cylinder warehouse at Huhtamaki, Ronsberg (warehouse vehicles TIA Portal, warehouse management C#, Oracle, ERP system interface DB table)
- Further development of the warehouse simulator for improved programming of the movement planner
- Project to read and analyze QR codes on letters in the letter sorter at XPROMA GmbH, Salzhausen (program as a service for fast reading of QR codes via two Keyence barcode readers in C#, Microsoft SQL Server, TCP/IP; program for monitoring and parameterizing the barcode readers and triggering the data export in C#, Microsoft SQL Server, SFTP transfer)
- Project for the development and programming of a low-cost management system for automated guided vehicles with Egemin Automation Inc. and American Packaging Corporation (C++, C#, Microsoft SQL Server, TCP/IP)
- Project for the test stand development and automation of SYS.5 tests for the climate actuator at ETO GRUPPE TECHNOLOGIES GmbH, Stockach (test stand software LabVIEW, C#; test evaluation DIAdem, C#; databases Microsoft SQL Server)
Rachid Raji
Last position:
Self-employed at R&A Engineering GmbH
- Development and programming of PLC controllers and servo drives, such as TIA Portal, Siemens Step7 Classic, RSlogix/Studio5000, Unity Pro and CODESYS
- Visualization systems WinCC, FactoryTalk VIEW
- Integration of various fieldbuses into automation devices (PROFIBUS, PROFINET, DeviceNet, ControlNet, Ethernet/IP, MODBUS)
- Script programming (C# / VB.Net / VBscript / VBA)
- Selection of electrical components and systems
- Commissioning and optimization of simple to complex plants and machines
- Planning and creation of electrical schematics
- Preparation of installation plans
- Preparation of bills of materials and technical calculations
- Feasibility studies
Discover over 15,000 top freelancers
Statistics of experts using CODESYS
Aggregated from the professional profiles of matched freelancers.
Experience
23 years
Position duration
2.8 years
Positions per freelancer
12
Top business areas
Product Development, Information Technology, Quality Assurance
Top industries
Manufacturing, Information Technology, Automotive
Certification focus areas
Information Technology, Quality Assurance, Product Development
Bachelor's degree or higher
87%
Master's degree or higher
61%
Doctorate
17%
Certifications per freelancer
3
Most common languages
German, English, Arabic
Speak two or more languages
92%
Based on our profile pool as of 30 Aug 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Germany are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows how many freelancers charge within that range.
Average rates of experts in Germany using CODESYS
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
PLC engineering
CODESYS is used to create industrial control software for PLCs, embedded controllers, and machine automation. It supports structured control logic, I/O handling, and runtime behavior for systems that need reliable, repeatable execution.
Core tasks
- Design and maintain PLC applications
- Map sensors, actuators, and drive signals
- Build HMI and visualization screens
- Test control logic before commissioning
- Adapt code to different controller targets
Standards and tools
CODESYS is built around IEC 61131-3 languages such as Structured Text, Ladder Diagram, and Function Block Diagram. Strong specialists also work with the CODESYS Development System, runtimes, communication libraries, and device descriptions.
Where it fits
You see CODESYS in machine building, packaging lines, process plants, building automation, and other industrial environments. In Germany, it is often part of projects that need careful commissioning, clear documentation, and close coordination with plant teams.
When to bring in help
Companies usually bring in freelance expertise when a machine must be commissioned under time pressure, a legacy application needs extension, or a controller platform change affects existing logic. It also helps when the internal team needs support for debugging, migration, or a specific fieldbus setup.
What strong experts do
A strong CODESYS specialist reads existing code quickly, understands real hardware behavior, and writes logic that is stable and maintainable. They pay attention to diagnostics, version control, simulation, and clean handover so the system stays usable after delivery.
Frequently asked questions
Everything clients usually want to know about CODESYS, in one place.
CODESYS is used to program PLC-based control systems for machines, lines, and other automation equipment. It is common for logic that handles I/O, motion-related coordination, alarms, and visualization on controller-driven systems.
CODESYS is often valued for its vendor-neutral approach and broad controller support. Compared with TIA Portal or TwinCAT, the choice usually depends on the target hardware, the existing ecosystem, and how much portability the project needs.
A strong CODESYS specialist usually understands IEC 61131-3, fieldbus communication, controller commissioning, and basic electrical or machine-side diagnostics. Experience with visualization, motion tasks, and versioned delivery is also useful.
A small bug fix may only need a specialist who knows the existing setup well. Larger work, such as a migration, machine retrofit, or new runtime integration, benefits from someone who has shipped complete CODESYS applications and can handle commissioning calmly.
CODESYS work can often start remotely for code review, logic changes, and preparation. On-site time in Germany is usually needed for commissioning, hardware checks, signal testing, and final troubleshooting near the machine or plant.
Ask which controller targets they have worked with, which fieldbuses they know, and how they handle testing and handover. For CODESYS projects, it also helps to ask whether they can read legacy code and document changes clearly.
No. CODESYS is often used for retrofits, extensions, and maintenance of existing systems as much as for new builds. Many companies bring in specialists when they need to keep older equipment running while adding new functions.
Look for clear explanations, practical debugging habits, and code that is easy to maintain. A good CODESYS expert thinks about alarms, fallback behavior, simulation, and how the next person will support the system after commissioning.
The average hourly rate of freelancers in Germany who have used CODESYS in their recent projects is 94 €, which corresponds to a daily rate of about 750 € based on an 8-hour working day.
Of the freelancers in Germany who have used CODESYS in their recent projects, 87% hold at least a Bachelor's degree, 61% hold at least a Master's degree, and 17% hold a doctorate.
On average, freelancers in Germany who have used CODESYS in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 2.8 years.
The most common languages among freelancers in Germany who have used CODESYS in their recent projects are German (100%), English (88%), and Arabic (16%).
The most common industries among freelancers in Germany who have used CODESYS in their recent projects are Manufacturing (88%), Information Technology (60%), and Automotive (52%).
The most common business areas among freelancers in Germany who have used CODESYS in their recent projects are Product Development (100%), Information Technology (88%), and Quality Assurance (80%).
Main locations of FRATCH Experts, who have recently used CODESYS
Our freelancers and interim experts are at home across the DACH region — available on-site in the major business hubs or fully remote. Choose a location to discover matched specialists, local market insights and up-to-date availability.
Berlin Hamburg Munich Cologne Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
