Natdanai Promchinavongs - Automation Software Developer

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Reutlingen, Germany

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Experience

Jul 2025 - Dec 2025

6 months

Nuremberg, Germany

Software Developer, SiC Mold Production Line

Vitesco Technologies Germany GmbH

Developing software solutions based on technical requirements and existing systems
Developing TLV commands for automated laser cleaning and laser power measurement
Supporting and assisting with production processes
Performing software tests, analyzing and fixing errors
Integrating and connecting MES systems
Using C# and Structured Text (ST according to IEC 61131-3)
Using TwinCAT 3.1 as the development environment
Creating visualizations with Windows Forms
Working with Beckhoff CX controllers and Stäubli industrial robots
Using Ethernet and EtherCAT networks
Integrating TRUMPF TruMark 3330 and 7050 laser systems
Using a KEYENCE vision system
Version control with Git and GitLab

Mar 2025 - Jun 2025

4 months

Nagold, Germany

Software Developer, Battery Housings for Electric Vehicles

BBKN Boysen Batterie Komponenten Nagold GmbH & Co. KG

Developing software solutions based on technical requirements and existing systems for battery housing production lines
Commissioning production lines, e.g. welding and blind riveting cells, DMC laser marking, and EOL inspection systems
Performing software tests and fixing errors
Using Structured Control Language (SCL according to IEC 61131-3)
Using TIA Portal V18 as the development environment
Process visualization with WinCC Advanced Combo
Working with SIEMENS S7-1500 CPU1515SP PC controllers and YASKAWA industrial robots
Using Ethernet and Profinet networks
Integrating a TRUMPF TruMark 7050 laser system and a Perceptron vision system
Version control with Git, Gitea, and Azure DevOps

May 2024 - Oct 2024

6 months

Weikersheim, Germany

Software Developer, Impregnation System

bdtronic GmbH

Developing the software concept based on object-oriented principles for the world's largest impregnation system
Designing the software architecture and class hierarchy
Refactoring existing software modules
Performing software tests and fixing errors
Supporting commissioning of the impregnation system
Using Structured Text (ST according to IEC 61131-3)
Using TwinCAT 3.1 as the development environment
Working with Beckhoff C69XX controllers
Using EtherCAT and OPC UA networks
Version control with Git and Azure DevOps

Mar 2024 - Apr 2024

2 months

Leipheim, Germany

Software Developer, Machine 4.0

GMVT GmbH

Developing a software concept and related architecture for monitoring the ADS, EtherCAT, OPC UA, and TCP/IP communication protocols
Implementing software according to object-oriented programming principles
Using Structured Text (ST according to IEC 61131-3)
Using TwinCAT 3.1 as the development environment
Working with Beckhoff CX controllers
Using EtherCAT, OPC UA, and TCP/IP networks
Version control with Git and GitLab

Mar 2023 - Feb 2024

1 year

Neustadt an der Donau, Germany

Software Developer, Dispensing Systems and Commissioning

Scheugenpflug GmbH

Developing software for screwdriving systems and laser profile sensors
Performing IO checks, troubleshooting, and fixing errors
Commissioning the vacuum system and dispensing system
Using Structured Text (ST according to IEC 61131-3)
Using TwinCAT 3.1 as the development environment
Working with Beckhoff CX controllers and AX5000 drives
Using EtherCAT, Profibus, and Profinet networks
Using a KEYENCE vision system
Version control with Git and TortoiseGit

Mar 2022 - Feb 2023

1 year

Gross-Umstadt, Germany

Software Developer CNC Cutting Systems

Messer Cutting Systems GmbH

New development and further development of control components for CNC cutting systems
Architecture, design, programming, and maintenance of object-oriented PLC applications
Coordination of the continuous development of cutting and machining processes using the SCRUM method
Testing and analysis in the lab and on prototypes
Use of Structured Text (ST according to IEC 61131-3)
Use of TwinCAT 3.1 as the development environment
Work with Beckhoff CX controllers and AX5000 drives
Use of EtherCAT networks
Version control with Git, Jira, and Azure DevOps

Sep 2021 - Feb 2022

6 months

Sankt Leon-Rot, Germany

Software Developer Packaging Machine

MA micro automation GmbH

Performing IO checks, troubleshooting, and resolving issues on a fully automated Co-Re-Tip packaging machine
Commissioning packaging lines
Tuning AX5000 and AX8000 drives
XTS basic configuration
Use of Structured Text (ST according to IEC 61131-3)
Use of TwinCAT 3.1 as the development environment
Process visualization with Zenon
Work with Beckhoff C6930 and C6030 controllers and AX5000 and AX8000 drives
Use of EtherCAT networks
Version control with Git and TortoiseGit

May 2021 - Aug 2021

4 months

Malterdingen, Germany

Software Developer Solar Cell Tester

JR Innovations GmbH

Performing IO checks, troubleshooting, and resolving issues on solar cell production line equipment
Programming and modifying existing PLC controls
Commissioning and optimizing solar cell production line equipment
Use of Structured Text (ST according to IEC 61131-3)
Use of TwinCAT 3.1 as the development environment
Process visualization with TwinCAT 3 HMI Engineering
Work with Beckhoff CX5130-0155 controllers and AX8000 drives
Use of EtherCAT networks
Version control with TwinCAT Multiuser

Oct 2020 - Present

6 years 2 months

Freelancer

Software development in automation technology for the high-tech industry
Planning, design, and development of software modules for automation systems using object-oriented programming
Commissioning, fault analysis, and troubleshooting
Analysis and optimization of existing software

Oct 2018 - Sep 2020

2 years

Neuhausen auf den Fildern, Germany

Software and Commissioning Engineer

FANUC Europe GmbH

Commissioning paint systems in the automotive industry
Creating, optimizing, and further developing control software for robotic systems and paint applications
Further developing visualization and control concepts
Programming robot controllers and configuring robots
Commissioning and optimizing paint systems during pre-assembly and at customer sites
Production support and preparation of technical documentation
Use of KOP and Structured Control Language (SCL according to IEC 61131-3), as well as C#, SQL, VB.Net, and XML
Use of TIA Portal V15, Microsoft Visual Studio 2017, and Microsoft SQL Server 2014
Process visualization with PAINTworks and iPendant
Work with SIEMENS S7-1500 controllers, FANUC industrial robots (P-1000iA, P-250iB), and R-30iB plus robot controllers
Use of ROBOGUIDE for robot simulations
Use of Profinet and TCP/IP networks
Version control with Git and TortoiseGit
Use of iRVision vision systems
Planning and implementation of the FANUC showroom, including robot and vision system configuration and preparation of training materials
Project support at customer FCA Italy S.P.A. (Bicolor Roof FIAT), focusing on visualization and control concepts

Aug 2018 - Sep 2018

2 months

Hinwil, Switzerland

Software Developer Spring Return Actuator Test Cell

BELIMO Automation AG

Adaptation of control and safety programs (TwinSAFE) for a spring return actuator test cell
Commissioning of the test cell
Handover of commissioning reports
Use of sequential function chart and structured text (ST according to IEC 61131-3)
Use of TwinCAT 3.1 as the development environment
Process visualization with LabVIEW
Work with Beckhoff CX2030-0120 controllers
Use of TCP/IP networks

Nov 2016 - Sep 2018

1 year 11 months

Selb, Germany

Software Developer Motor-Pump Unit Assembly Line

Rausch & Pausch GmbH

Software development for PLC sequences and the user interface for a motor-pump unit assembly line
Further development of software modules and a software library
Commissioning of the system in-house through final acceptance at the customer's site
Production support and preparation of technical documentation
Use of C#, structured text (ST according to IEC 61131-3), WPF and XAML
Use of TwinCAT 3.1 as the development environment
Use of Cognex In-Sight Explorer for image processing and Cognex vision systems
Process visualization with VisiWin 7
Work with Beckhoff C5102 and C6920 controllers, Stäubli RX160 industrial robots and AX5000 drives
Use of EtherCAT and TCP/IP networks
Version control with SVN

Nov 2016 - Sep 2018

1 year 11 months

Dußlingen, Germany

Software Developer

ZELTWANGER Automation GmbH

Software design and implementation in the automotive industry
Commissioning of assembly lines and test systems
Software development for PLC sequences and the user interface
Use of C#, structured text (ST according to IEC 61131-3), WPF and XAML
Use of TwinCAT 3.1 as the development environment
Process visualization with VisiWin 7
Use of Cognex In-Sight Explorer for image processing
Work with Beckhoff C5102 and C6920 controllers, Stäubli RX160 industrial robots and AX5000 drives
Use of EtherCAT and TCP/IP networks as well as Cognex vision systems
Version control with SVN
Commissioning in-house through final acceptance at the customer's site
Production support and preparation of technical documentation

Oct 2014 - Apr 2015

7 months

Chemnitz, Germany

Bin Picking System

Technische Universität Chemnitz

Research and application of digital image processing algorithms for robot guidance
Development of a bin picking system based on 3D image processing
Use of C/C++ and V+
Use of Microsoft Visual Studio 2013 as the development environment
Use of OpenCV for image processing
Work with Stäubli RX90B industrial robots
Use of TCP/IP networks

Nov 2013 - Feb 2014

4 months

Chemnitz, Germany

Research Assistant

Technische Universität Chemnitz

Design and implementation of software solutions in the field of robotic systems
Further development of software for collision avoidance between robots using virtual force fields
Use of KRL and PASCAL
Use of Delphi XE2 as the development environment
Work with KUKA KR6-2 industrial robots
Use of TCP/IP networks

Mar 2008 - Oct 2010

2 years 8 months

Bangkok, Thailand

IT Security Manager ITIL, IT Engineer

Siemens Ltd.

Ensuring a well-designed and controlled IT security process to ensure business continuity
Implementing security measures and supporting audits
Planning IT recovery measures
Data center management
Resolving issues in 2nd and 3rd level support

Mar 2007 - May 2007

3 months

Thailand

Trainee Application Engineer

Seagate Technology Ltd.

Implementing software solutions in the electrical and electronics industry
Gathering business requirements
Improving an existing web application

Industry experience

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

Experienced in Manufacturing, Automotive, Energy, and Education.

Manufacturing

Automotive

Energy

Education

Business area experience

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

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

Information Technology

Product Development

Production

Quality Assurance

Operations

Research and Development

Skills

Programming Languages: C#, Structured Text (St According To Iec 61131-3) (Very Good Practical Knowledge)
Programming Languages: C/C++, Golang, Karel, Matlab, Pascal, Vb.Net (Advanced Basic Knowledge)
Programming Languages: Krl, Python 3.8, Sql, V+, Wpf, Xaml (Basic Knowledge)
Development Environments: Twincat 3.1.4026, Tia Portal V18, Microsoft Visual Studio 2022, Visual Studio Code, Pycharm
Frameworks: Gin, Tensorflow
Image Processing: Cognex In-Sight Explorer, Irvision, Opencv
Process Visualization: Ipendant, Paintworks, Twincat 3 Hmi Engineering, Visiwin 7, Wincc Comfort
Controllers: Beckhoff, Siemens
Industrial Robots: Fanuc, Kuka, StäUbli, Yaskawa
Robot Controllers: R-30ib Plus
Robot Simulations: Roboguide
Database Systems: Mongodb, Ms Sql Server 2004, Postgresql
It Infrastructure: Hp Server/Storage, Netapp, Hyper-V, Vmware
Container Virtualization: Docker
Version Control Systems: Git, Svn, Siemens Vci, Twincat Multiuser
Word Processing: Ms Office, Latex

Languages

Thai

Native

German

Advanced

English

Advanced

Education

Oct 2011 - Apr 2015

Technische Universität Chemnitz

Master of Science · Energy and Automation Systems · Chemnitz, Germany · 2,0

Jun 2002 - Oct 2007

Assumption University of Thailand

Bachelor of Engineering · Computer Engineering · Bangkok, Thailand · 2,39

Certifications & licenses

Machine Learning

Programming, Commissioning, and Diagnostics of the TwinCAT IEC 61131-3 System

iRVision

Statistics

Experience

Total positions 17

Experience in Manufacturing 13.5 y

Avg length 1 y 1 m

Longest experience 6 y 1 m

Global experience

Countries worked in 3 (Germany, Thailand, Switzerland)

Primary country Germany

Expertise

Recent roles Software Developer, SiC Mold Production Line, Software Developer, Battery Housings for Electric Vehicles, Software Developer, Impregnation System

Main industries Manufacturing, Automotive, Energy

Main business areas Information Technology, Product Development, Production

Qualifications

Highest degree Master

Certifications earned 8

Member since

January 2026

Last update

November 2026

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Frequently asked questions

Have questions? Find more information here.

Natdanai is based in Reutlingen, Germany.

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

Natdanai has at least 14 years of experience. During this time, Natdanai has worked in at least 17 different roles and for 16 different companies. The average length of individual experience is 1 year and 10 months. Note that Natdanai may not have shared all experience and actually has more experience.

Based on recent experience, Natdanai would be well-suited for roles such as: Software Developer, SiC Mold Production Line, Software Developer, Battery Housings for Electric Vehicles, Software Developer, Impregnation System.

Natdanai's most recent position is Software Developer, SiC Mold Production Line at Vitesco Technologies Germany GmbH.

In recent years, Natdanai has worked for Vitesco Technologies Germany GmbH, BBKN Boysen Batterie Komponenten Nagold GmbH & Co. KG, bdtronic GmbH, GMVT GmbH, and Scheugenpflug GmbH.

Natdanai is most experienced in industries like Manufacturing, Automotive, and Education. Natdanai also has some experience in Energy and Information Technology.

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

Natdanai has recently worked in industries like Manufacturing and Automotive.

Natdanai has recently worked in business areas like Information Technology, Product Development, and Production.

Natdanai holds a Master in Energy and Automation Systems from Technische Universität Chemnitz and a Bachelor in Computer Engineering from Assumption University of Thailand.

Natdanai has 8 certificates. Among them, these include: ITIL® V2 Foundation, Machine Learning, and Microsoft Certified Professional.

Natdanai will be available from December 2026.

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Daily rate avg. 800 €

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Median rate 800 €

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 6 Nov 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.