Dennis van der Meulen, Developer in Huizen, Netherlands
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Dennis van der Meulen

Verified Expert  in Engineering

Mission-critical Engineer and Developer

Huizen, Netherlands
Toptal Member Since
October 19, 2023

Dennis is a junior engineer specializing in IT security. With a background in systems implementation for operational technologies, he excels in enabling systems to communicate with each other. Dennis is currently focusing on projects in the energy industry.



Preferred Environment

Puppet, Windows PowerShell, Python, Linux, Docker

The most amazing...

...project I've worked on is the IT infrastructure for Maasvlakte 2 Wind Farm, covering everything from design to implementation.

Work Experience

Mission-critical Engineer

2021 - PRESENT
  • Designed, implemented, and improved a mission-critical system for operational technology solutions from the ground up to enable remote access, monitoring, logging, and data transfer.
  • Ensured compliance with the Purdue model for industrial control system (ICS) security.
  • Helped design and implement Qualys as a secure scanning tool for all customers.
  • Implemented, improved, strengthened, and managed the lifecycle of mission-critical implementations of old and new operational technology solutions.
Technologies: Windows PowerShell, Puppet, Python, QualysGuard, Azure Active Directory, Linux, Windows Server, Kubernetes, OpenShift, Azure IoT Hub, Terraform, VMware vCloud, VMware vCenter, Nessus, Ansible, Elasticsearch, Kibana, Apache Kafka, Squid, Windows Server Update Services (WSUS), Zabbix, Azure DevOps

Raspberry Pi Light Switch
I built a modular and Dockerized server based on Flask and REST to turn Raspberry Pi into a wifi light switch. It has the front end and integrates with the Astral Library to provide automatic turn-on and turn-off times.


Puppet, Azure IoT Hub, Terraform, Nessus, Ansible, Kibana, Squid, Zabbix


Windows PowerShell




QualysGuard, Linux, Windows Server, Kubernetes, OpenShift, Apache Kafka, Docker


Azure DevOps


Azure Active Directory, Elasticsearch


VMware vCloud, VMware vCenter, Windows Server Update Services (WSUS)

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