Witold Kolaj
Software Architect & Technical Leader at Mettler-Toledo International, Inc
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolWitold Kolaj is a Senior Software Engineer based in Warsaw with 10 years of experience building industrial communication, automation and IT systems for digital low-voltage switchboards. He has progressed from hands-on electrical design and PLC/HMI implementations at Siemens to full-stack and cloud energy management development, and now delivers software solutions at Mettler-Toledo. Comfortable across C/C++, C#, Node.js and React, he blends firmware-level automation expertise with modern web and cloud architectures to bridge field hardware and enterprise software. Known for helping regional sales with bespoke engineering tools, he brings a practical, customer-focused approach to complex integration projects. His background in mechatronics and robotics gives him a systems-thinking perspective that helps simplify multidisciplinary problems.
10 years of coding experience
12 years of employment as a software developer
M. Sc. Eng. Mechatronics, Robotics, and Automation Engineering, M. Sc. Eng. Mechatronics, Robotics, and Automation Engineering at Warsaw University of Technology
English, Spanish, Polish
Github Skills (14)
backend5
frontend4
development-tools4
webapp4
webserver3
mqttjs3
monitoring3
modbus3
hosting3
docker3
monitor2
web-development-tools2
web-development2
self-hosting1
Programming languages (3)
Github contributions (5)
WKolaj/PACModbusSimulator
Apr 2019 - Aug 2020
Contributions:1 release, 8 commits, 7 pushes in 1 year 3 months
WKolaj/PowermonitorIOT
Mar 2019 - Jan 2021
Application for monitoring low voltage cabinets
Contributions:8 releases, 159 pushes, 2 branches in 1 year 10 months
modbusmonitoringcabinetsvoltage
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