SIMATIC S7 Experts in Germany
for reliable automation projects, matched in minutes with vetted and available professionalsHire experts who program Siemens PLC systems, configure TIA Portal and STEP 7, and connect SIMATIC S7 controls with HMIs, drives and industrial networks. FRATCH matches you quickly and precisely with vetted, available freelancers.
Meet FRATCH Experts in Germany, who have recently used SIMATIC S7
Muhammad Tanveer B.
Last position:
Embedded Systems Consultant / Architect | Integration and Validation Engineer / Manager at Ingenieurbüro Baig
Led the hardware development and validation of a safety-critical 400-V battery management system (BMS) for the TOGG SUV program; performed system architecture reviews, schematic validations, EMC and reliability tests, and root cause analyses in compliance with relevant automotive standards (ECE-R10, CISPR25, ISO-26262). Coordinated cross-country EU engineering teams, customer reviews, and technical documentation to deliver a production-ready, validated system.
Architected and integrated 22 state-of-the-art ADAS validation vehicles for BMW ADCAM and LIDAR programs at Magna Electronics; synchronized up to 26 heterogeneous sensors (LIDAR, RADAR, cameras, GNSS/INS) using PTP-based timing architectures. Defined the system architecture, HW/SW interfaces for hardware-in-the-loop (HIL) rework, sensor integration strategies, and data acquisition frameworks. This enabled scalable vehicle-level validation, improved validation efficiency by 25%, and reduced project costs by €1.45 million.
End-to-end validation and integration of automotive radar platforms for a Daimler project at Continental. Developed automated open-loop hardware-in-the-loop (HIL) environments to accurately test target tracking KPIs, field-of-view limits, and thermal and voltage-related ECU state machines. Skilled use of a highly complex toolchain consisting of CANoe, Lauterbach Trace32, RADAR target simulators, and EMC shielding chambers for RF and system validation. Synchronized global, interdisciplinary teams to speed up troubleshooting and close critical technical gaps.
Reconstructed and validated the product architecture of an electromechanical e-bike by integrating and troubleshooting critical subsystems (BMS, motor control, sensors, HMI, electronic locking systems). Built a comprehensive system-level test bench for functional testing, fault reproduction, and performance analysis; coordinated suppliers and implemented corrective actions to improve reliability and traceability.
Defined the system architecture and validation strategy for a LIDAR platform developed in cooperation with Elmos Semiconductor; evaluated optical measurement concepts, SPAD detector integration, and system requirements, and created technical recommendations for product development and verification.
Developed LabVIEW-based automation and verification software for a high-precision hydraulic and electromechanical test system for FTE Automotive; integrated NI DAQ hardware for high-frequency real-time capture of physical measurements. Developed automated test sequences, programmable endurance tests, troubleshooting routines, data logging, and analysis tools to improve test efficiency and traceability.
Successfully delivered full engineering life cycles for well-known industrial customers (Magna, Continental, Farasis, FTE Automotive, BMW, Daimler, TOGG) – from requirements engineering and proof of concept to system integration and validation, technical documentation, supplier coordination, and user training.
Volkmar S.
Last position:
Parameterization and support during the commissioning of water treatment at wks GmbH
Parameterization and support during the commissioning of water treatment
Project: New construction of municipal water treatment plant Dörenthe
- Checking the sensors for suitability, installation errors and parameterization.
- Coordination with the PL system for automation.
- Correction of errors
Tools: Endress & Hauser Tools
Emil O.
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
Youness R.
Last position:
Communication modernization and recipe management between S7-300, S7-1500 and WinCC V7 at Siemens AG
- Consulting and development of suitable communication concepts between S7-300 and S7-1500, taking the existing PROFIBUS infrastructure into account
- Technical support for connecting the S7-300 controllers to the existing recipe data block of the S7-1500
- Assisting in the development of the communication sequence for recipe access (read, write, acknowledge, status handling)
- Configuration of S7 communication (PUT/GET)
- Creation and adaptation of WinCC V7 scripts (C scripts and VBS scripts) for WinCC-based recipe management
- Development, optimization, and integration of recipe processes into the existing WinCC project structure
- Commissioning of the new communication interfaces and recommissioning of the recipe logic on existing systems
- Creation of technical documents: communication sequences, functional descriptions, commissioning documentation
Bülent Ö.
Last position:
Freelance Overall Project Manager at energyconsult GmbH
- Project planning and lead engineering
- Coordination and negotiations with, among others, grid operators, substation suppliers, cable and civil engineering companies
- Analysis, description and documentation of engineering and documentation processes
- Calculation of cable cross-sections from the wind turbines to the substation
- Engineering and specification of cable types, requests for quotations and awarding of contracts to suppliers
- Specification of cable routes, requests for quotations and awarding of contracts to suppliers
- Specification of cable civil engineering work, requests for quotations and awarding of contracts to suppliers
- Civil engineering design
- Planning and monitoring of schedules and dependencies
- Coordination of the different trades
- Participation in project meetings
- On-site inspections of facilities when required
- Regular on-site appointments
Kusay T.
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.
Rachid R.
Last position:
Self-employed at R&A Engineering GmbH
- Development and programming of PLC controls 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)
- Programming of scripts (C# / VB.Net / VBscript / VBA)
- Selection of electrical components and systems
- Commissioning and optimization of simple to complex systems and machines
- Planning and creation of electrical schematics
- Preparation of installation plans
- Preparation of bills of materials and technical calculations
- Feasibility studies
Marco D.
Last position:
Self-employed in the field of technical documentation at Pureremote LLC
- Low voltage (NSHV and UV)
- Medium voltage (medium-voltage systems)
- Creating circuit diagrams
- Creating technical documentation
- Technical support
- Supporting technical projects
Frank M.
Last position:
Plan & Code Automation UG
- Operations and rehabilitation
- During this time, development of:
- Websites zentivo-holding.com zyntra3d.com plancodeautomation.com
- Stock trading software
- Automated trading of all financial instruments listed on the stock exchange, with AI integration
- Project management software
- Automated project administration and project management with automated creation of material lists, electrical schematics, PLC programs, HMI programs, AI functions in control technology, project schedules and cost calculations, as well as quotation preparation and cost tracking.
- AI integration
- 3D printing management
- Various methods for creating 3D models from photos, videos or drawings.
- Creation of files suitable for 3D printing, 3D printer management via API.
- AI integration
Tools: Visual Studio, Codex and Cursor, HTML, Java, Python, PHP, C#, Python, SQL, Jason Script.
Jean-Louis T.
Last position:
Area Manager - Aftersales Operations at E80 Group
- Development and quotation of technical solutions
- Design of high-performance solutions
- Management of aftersales operations, teams and budget
- Documentation revision
Matthias S.
Last position:
Manager External Staffing Digital & Operations at EnBW AG
- Training and advising project teams in sales and IT on the compliant use of external staff through service/work contracts
- Preparing service descriptions with consideration of labor and social security law as well as compliance aspects
- Supporting teams in transforming ways of working into new collaboration models
- Supporting tenders as a representative of the specialist departments
- Developing solution strategies for future collaboration with external service providers
- Running and designing workshops, creating training materials
Daniel P.
Last position:
Freelance specialist in industrial automation technology at dPSolutions
- Self-employed PLC and software specialist focusing on automation and special-purpose machinery
- Programming, modernization, expansion and optimization of production systems, focusing on increased efficiency, 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)
- Integration of external systems such as reading devices, printers, scales, scanners and cameras, as well as various bus systems (Ethernet, Profinet, Profibus, EtherCAT, CAN bus, RS232, TCP/IP)
- Creation of visualizations and HMI applications with Siemens WinCC flexible, Beckhoff HMI and .NET frontends
- Planning, development and integration of machine vision solutions (Keyence, Cognex, AVS Alfavision, camera systems) in PLC and PC environments
- Design and implementation of process data collection 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
- Planning and programming of conveyor, inspection, assembly, packaging and grinding systems in industries such as automotive, chemical, food, electronics, machinery and systems engineering
- Conducting workshops and training on Siemens TIA Portal, STEP7 Classic, Beckhoff TwinCAT (including TwinSAFE), as well as topics such as 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 requirements analysis through planning, concept development and supplier coordination to commissioning, production support and customer support
Frank D.
Last position:
Project management, development and system integration for retrofit on a Uranus thermionic mass spectrometer at Forschungszentrum Jülich
- Development of a retrofit concept, including qualification measures
- Development, installation and commissioning of the required hardware and software
- Development of a safety concept
- Execution and documentation of in-house verifications / qualification
- Initiation and implementation of measures in case of non-conformities
- Execution of CE conformity assessment procedures and CE marking
Basel J.
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.
Frank B.
Last position:
Subproject Lead Control Technology at Aumann Beelen GmbH
- Concept creation and detailed design for a battery module assembly line
- Commissioning coordination at a large Bavarian automotive manufacturer
Discover over 15,000 top freelancers
Statistics of experts using SIMATIC S7
Aggregated from the professional profiles of matched freelancers.
Experience
23 years
Position duration
4.5 years
Positions per freelancer
13
Top business areas
Product Development, Operations, Information Technology
Top industries
Manufacturing, Automotive, Information Technology
Certification focus areas
Operations, Product Development, Information Technology
Bachelor's degree or higher
79%
Master's degree or higher
48%
Doctorate
2%
Certifications per freelancer
2
Most common languages
German, English, French
Speak two or more languages
98%
Based on our profile pool as of 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Germany are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging within that range.
Average rates of experts in Germany using SIMATIC S7
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 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
SIMATIC S7 experts industry focus
See which industries our matched freelancers work in most often — every figure is calculated live from the freelancers on FRATCH.
- Manufacturing (96%)
- Automotive (56%)
- Information Technology (40%)
- Energy (37%)
- Education (30%)
- Healthcare (25%)
- Aerospace and Defense (23%)
- Construction (23%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What SIMATIC S7 Does
SIMATIC S7 is Siemens’ family of programmable logic controllers for controlling machines, production lines and process systems. It handles digital and analogue signals, sequencing, motion-related logic and safety-oriented automation tasks. Companies use S7-1200 and S7-1500 systems in modern plants, while S7-300 and S7-400 installations remain important in established facilities.
Core Engineering Work
Experts translate functional specifications into PLC programs, hardware configurations and tested control sequences. Their work can include I/O mapping, alarm handling, diagnostics, data blocks, reusable function blocks and commissioning support. Strong specialists also document changes clearly so plant teams can maintain the system after handover.
- Configure CPUs, remote I/O and industrial communication
- Build control logic in LAD, FBD or SCL
- Integrate HMIs, drives, sensors and safety components
- Test sequences and diagnose faults during commissioning
Tools And Ecosystem
The surrounding ecosystem usually includes TIA Portal for current SIMATIC S7 platforms and STEP 7 for established systems. Depending on the plant, specialists work with WinCC, PROFIBUS, PROFINET, SINAMICS drives, ET 200 stations and OPC UA interfaces. They may also connect controller data to SCADA, MES or higher-level production systems.
When Companies Need Help
Freelance expertise is useful when an internal team must modernize a running plant without disrupting production. It also supports new machine builds, line expansions, controller migrations and urgent fault analysis. In Germany, specialists may combine remote programming with on-site commissioning at manufacturing, logistics, energy or process-industry facilities.
- Replace or migrate legacy S7-300 or S7-400 controls
- Commission new S7-1200 or S7-1500 machines
- Resolve communication, sequence or diagnostic faults
- Prepare tested software and handover documentation
Choosing A Strong Specialist
Look for practical evidence with the specific CPU family, programming environment and plant type involved in the project. A capable professional can explain the control concept, trace a fault from signal to actuator and work safely with live industrial equipment. Experience with version control, testing, backups and clear change records is equally important.
Remote And On-Site Delivery
Programming, documentation, simulation and much of the diagnosis can be handled remotely through secure access and agreed plant data. Physical wiring checks, machine trials, safety validation and final commissioning usually require an on-site presence. For German projects, clarify travel needs, site access, communication language and coordination with maintenance and production teams before work begins.
Frequently asked questions
Questions about SIMATIC S7? Start with the answers below.
SIMATIC S7 controls machines, production lines and process equipment through programmable logic, signal handling and industrial communication. Companies use it for tasks such as sequencing, conveyor control, batching, diagnostics, HMI integration and coordination with drives or distributed I/O.
Siemens S7 is often weighed against PLC families from Rockwell Automation, Beckhoff, Schneider Electric and Mitsubishi Electric. The right choice depends on the existing plant standard, programming tools, network architecture, support needs and the availability of specialists familiar with the installed equipment.
A strong SIMATIC S7 specialist often works with TIA Portal or STEP 7, WinCC, PROFINET, PROFIBUS, ET 200 and SINAMICS drives. Useful adjacent knowledge includes industrial Ethernet, OPC UA, electrical documentation, motion control, safety systems and connections to SCADA or MES.
S7-1200 and S7-1500 are common choices for newer machines and plants, especially when TIA Portal, modern diagnostics and current communication features are required. S7-300 and S7-400 may still be the practical choice when a project extends an established installation or requires a controlled migration path.
The right level for SIMATIC S7 work depends on the risk, scope and plant condition rather than a fixed number of years. A small logic change may need focused programming expertise, while a migration or live commissioning assignment calls for proven skills in testing, fault recovery, documentation and production coordination.
SIMATIC S7 programming, documentation and some diagnostics can be completed remotely through secure access. On-site work is usually needed for wiring checks, machine trials, safety validation and commissioning, so German companies should define travel, site access and language expectations early.
For a SIMATIC S7 project, agree on tested PLC software, hardware configuration, alarm and HMI behavior, backups and readable documentation. Depending on scope, the handover should also cover test records, network settings, recovery steps and a clear list of open items.
Ask a SIMATIC S7 expert to explain the program structure, diagnostic approach and test plan using a comparable machine or process. Quality is visible in consistent naming, modular logic, controlled changes, safe commissioning practices and the ability to trace a fault from field signal through the controller to the final actuator.
The average hourly rate of freelancers in Germany who have used SIMATIC S7 in their recent projects is 88 €, which corresponds to a daily rate of about 704 € based on an 8-hour working day.
Of the freelancers in Germany who have used SIMATIC S7 in their recent projects, 79% hold at least a Bachelor's degree, 48% hold at least a Master's degree, and 2% hold a doctorate.
On average, freelancers in Germany who have used SIMATIC S7 in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 4.5 years.
The most common languages among freelancers in Germany who have used SIMATIC S7 in their recent projects are German (100%), English (95%), and French (26%).
The most common industries among freelancers in Germany who have used SIMATIC S7 in their recent projects are Manufacturing (96%), Automotive (56%), and Information Technology (40%).
The most common business areas among freelancers in Germany who have used SIMATIC S7 in their recent projects are Product Development (96%), Operations (82%), and Information Technology (75%).
Main locations of FRATCH Experts, who have recently used SIMATIC S7
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 
Munich Request a free demo
Get in touch with the FRATCH team and we will get back to you within 4 hours.
Would you rather directly get in touch?
We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
