Christian Pehle - Freelance Electrical Engineer

Q: Where is Christian based?

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

Q: What languages does Christian speak?

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

Q: How many years of experience does Christian have?

Christian has at least 40 years of experience. During this time, Christian has worked in at least 4 different roles and for 5 different companies . The average length of individual experience is 8 years . Note that Christian may not have shared all experience and actually has more experience.

Q: What is Christian's latest experience?

Christian's most recent position is Freelance Electrical Engineer at Self-employed .

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

In recent years, Christian has worked for Self-employed .

Q: Which industries is Christian most experienced in?

Christian is most experienced in industries like Manufacturing , Professional Services , and Education .

Q: Which business areas is Christian most experienced in?

Christian is most experienced in business areas like Product Development , Quality Assurance (QA) , and Research and Development (R&D) . Christian also has some experience in Customer Service and Information Technology (IT) .

Q: Which industries has Christian worked in recently?

Christian has recently worked in industries like Manufacturing and Professional Services .

Q: Which business areas has Christian worked in recently?

Christian has recently worked in business areas like Product Development , Quality Assurance (QA) , and Research and Development (R&D) .

Recommended expert

Düsseldorf, Germany

Experience

Jul 2006 - Present

19 years 8 months

Freelance Electrical Engineer

Self-employed

Software development for microcontrollers and PCs
Design of architecture and modular structures based on requirements
Implementation in programming languages (preferably C, C#)
Documentation in source code (e.g., Doxygen) and additional documents
Use of version control and backup systems (e.g., SVN, GitLab)
Developer testing
Hardware development of microcontroller-based, digital and analog circuits including power electronics
Circuit concepts (digital and controller circuits, analog, power electronics)
Calculation of relevant parts
Compliance with EMC and safety guidelines
Simulations and component selection
PCB implementation: layout, manufacturing data, EMC and safety guidelines
Support of prototype manufacturing and series ramp-up
Commissioning of prototypes
Test development: manual and automated tests, test specifications, test stand conception and equipment selection
Requirements management and maintenance (requirements specification)
Support of certifications and series introductions

Apr 1999 - Sep 2006

7 years 6 months

Software Developer for Laboratory Equipment

Various Companies

Developed software for control, data acquisition and analysis of laboratory equipment in friction, abrasion and tensile testing
Supported hardware development for laboratory devices
Conducted customer training in theory and practice for device and software use

Apr 1992 - Mar 1999

7 years

Developer

Engineering Office

Consulting, implementation and support in measurement, control and regulation technology
System and product development

Jul 1987 - Mar 1992

4 years 9 months

Developer

Industry

Product development, measurement technology and quality assurance

Nov 1985 - May 1987

1 year 7 months

Student Assistant

Technical University of Hanover

Set up a measurement system for a production plant
Commissioned the measurement system

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 Manufacturing (38.5 years), Professional Services (26.5 years), and Education (1.5 years).

Manufacturing

Professional Services

Education

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 Product Development (38.5 years), Quality Assurance (26 years), Research and Development (21 years), Customer Service (14.5 years), and Information Technology (7.5 years).

Product Development

Quality Assurance

Research and Development

Customer Service

Information Technology

Skills

Software Development For Microcontrollers And Pcs

Design Of Architecture And Modular Structures Based On Requirements
Implementation In A Programming Language (Preferably C, C#)
Documentation In Source Code (E.g., Doxygen) And In Additional Documents
Use Of Version Control And Backup Systems (E.g., Svn, Gitlab)
Developer Testing

Hardware Development Of Microcontroller-based, Digital And Analog Circuits

Circuit Concepts
Digital And Controller Circuits
Analog
Power Electronics
Calculation Of Relevant Parts
Compliance With Emc And Safety Guidelines
Simulations
Component Selection
Pcb Implementation: Layout, Manufacturing Data, Emc And Safety Guidelines
Support Of Prototype Manufacturing And Series Ramp-up
Commissioning Of Prototypes

Test Development

Design And Implementation Of Manual And Automated Tests
Preparation Of Test Specifications, E.g., Based On Requirements
Test Stand Conception
Selection Of Equipment For Test Stands
Development Of Meaningful Report Templates

Development Context

Management And Maintenance Of Requirements (Requirements Specification)
Support Of Certifications
Support Of Series Ramp-up
Strong Skills In Mathematics And Physics And Their Engineering Application
Ability To Quickly Build Expertise In Other Areas With Physical Fundamentals (E.g., Force Measurement Technology)

Programming Languages

C, C++, C#, Labview (National Instruments)

Development Environments

Microchip Mplabx
Keil Microvision 4
Visual Studio
Eclipse
Qt
Iar
Icc
Microsoft .Net
Code Composer Studio
Emblocks (Gcc Toolchain, Gdb Debugger)
System Workbench For Stm32 (X-cube)
Visual Studio (Microsoft) For Pc Software

Circuit And Pcb Development

Pulsonix
Target
Kicad
Orcad
Altium
Solidworks Pcb
Mentor Graphics

Processors

St-microelectronics Stm32 Series
Texas Instruments Msp430 Series
Texas Instruments Msp470 Series
Texas Instruments Tiva Series
Raspberry Rp2040, Rp2053
Renesas R7f7xxx (Hardware Only)
Analog Devices Aduc70xx Series (Arm7)
Nxp Lpc3250 (Arm9), Lpcxxx (Cortex M3)
Microchip Pic16 Series, Pic18 Series, Pic24 Series
Infineon Xe166 Series
Z80
8051
Siemens C535

Protocols / Bus Systems

Can
Canopen
Lin
Spi
I2c
Ethernet
Uart In All Variations (Rs232, 5v And 3.3v Systems)

Operating Systems

Windows
Real-time Operating Systems (Rtx, Rtos)

Test Environments

Nunit
Teststand (National Instruments)

Languages

German

Native

English

Advanced

Education

Oct 1980 - Jun 1987

Technical University of Hanover

Diploma in Electrical Engineering: measurement, control and regulation technology, electrical machines · Electrical Engineering · Hanover, Germany

Certifications & licenses

Driver's license for passenger cars

Profile

Created

October 2025

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Frequently asked questions

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

Where is Christian based?

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

What languages does Christian speak?

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

How many years of experience does Christian have?

Christian has at least 40 years of experience. During this time, Christian has worked in at least 4 different roles and for 5 different companies. The average length of individual experience is 8 years. Note that Christian may not have shared all experience and actually has more experience.

What roles would Christian be best suited for?

Based on recent experience, Christian would be well-suited for roles such as: Freelance Electrical Engineer, Software Developer for Laboratory Equipment, Developer.

What is Christian's latest experience?

Christian's most recent position is Freelance Electrical Engineer at Self-employed.

What companies has Christian worked for in recent years?

In recent years, Christian has worked for Self-employed.

Which industries is Christian most experienced in?

Christian is most experienced in industries like Manufacturing, Professional Services, and Education.

Which business areas is Christian most experienced in?

Christian is most experienced in business areas like Product Development, Quality Assurance (QA), and Research and Development (R&D). Christian also has some experience in Customer Service and Information Technology (IT).

Which industries has Christian worked in recently?

Christian has recently worked in industries like Manufacturing and Professional Services.

Which business areas has Christian worked in recently?

Christian has recently worked in business areas like Product Development, Quality Assurance (QA), and Research and Development (R&D).

What is Christian's education?

Christian holds a Master in Electrical Engineering from Technical University of Hanover.

Does Christian have any certificates?

Christian has 1 certificate: Driver's license for passenger cars.

What is the availability of Christian?

Christian is immediately available full-time for suitable projects.

What is the rate of Christian?

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