Solid Engineering

DevOps for Big Data | Linux | Infrastructure as Code

Product Shot

I'm Merijntje, a DevOps engineer from The Hague area in The Netherlands. I've been working with Linux and servers since I was 14 years old. Over the years, I tinkered around more, and later I got my first job in IT at Ericsson. There I was amazed to find that what I was doing for fun, I could actually make a living off. At Ericsson, I’ve engaged with lots of different enterprise technologies and methodologies and I got further excited about the field. Working mostly in the Telco/ISP industry has significantly broadened my horizon.

After being developing my tech skills for years, going from Solaris administration, the virtualization-bubble into the infrastructure-as-code-revolution and now onto big data, I've seen a lot of different angles and learned a lot of new technologies. In every role I've fulfilled, I always had to work with other departments and engineers to come up with the best solution for the client. I've always been excited to introduce myself to new tech and figuring out how to make it run in a business environment with the right reliability and scalability. I noticed that I had another skill which proved useful. I spent more and more time focusing on my communication and other soft skills. I believe that soft skills can turn a good engineer into a great engineer. It's much more effective to work with customers and to deliver what they need if you have good communications with them.

Now I'm available for DevOps projects related to infrastructure, big data, Linux and enterprise applications. My skills are further outlined in the sections later on this page.

Now I survive as a soldier of fortune. If you have a problem and no one else can help, and if you can find me, maybe you can hire... Merijntje


Implementing, troubleshooting, monitoring, optimization and improving platform components, using Linux with a wide variety of open source tools, container orchestration, networks and storage with integrated security management and load balancers to deliver the best solution for a client.

Big Data

What I like the most about the Big Data is the getting the most performance out of a platform and optimizing manageability. Using Kafka, Zookeeper, Logstash, Elasticsearch, Kibana, Grafana, Cassandra and Graphite I help clients to build new big data platforms, manage the platform’s capacity, troubleshooting and improving the platform’s functionality.


As a fan of the efficiency (aka. a good sysadmin is a lazy one), I like that the infrastructure as code (IaC) limits repetitive tasks and helps compliance. My knowledge of the Ansible, Chef, Puppet, Jenkins, Git and Terraform helps me to enable my clients to quickly set up a complete infrastructure, to deploy same configurations over and over, track the changes of each configuration and essentially lower the total cost of infrastructure management.

Hardware & Cloud

• Azure
• Cisco UCS C220/C240
• HP DL380, 9000 D-Class
• Sun/Oracle M-series
• Sun/Oracle Enterprise Series
• Sun/Oracle Fire series
• Sun/Oracle T-series
• Sun/Oracle X-series



• Solaris
• Red Hat
• CentOS
• Debian
• Ubuntu
• NetApp
• Ceph
• VMWare vSphere
• Proxmox
• LDOM & Zones
• bind9
• PowerDNS


• Kafka
• Elasticsearch
• Logstash
• Kibana
• Zookeeper
• Mesos
• Flume
• PostgreSQL
• Cassandra
• Graphite
• Grafana
• Redis
• Apache httpd
• Nginx
• Tomcat
• Postfix

DevOps Tooling

• Git
• GitLab
• GitHub
• Subversion
• Jira
• Jenkins
• Prometheus
• Nagios
• Kubernetes


• Chef
• Puppet
• Ansible
• Terraform
• Test kitchen
• Bash
• Python
• Ruby

Curriculum Vitae


Freedom of speech on the internet is one of the biggest achievements of our generation. However, it is threatened by oppressive governments, censorship and network access inequiality. I believe _free_ internet access should be protected, and currently the best way a small organization can help in this cause is by donating Tor nodes and bandwidth to the network.

The Tor network depends on volunteers to donate network hops and bandwidth. The more parties and nodes there are, the better the experience and the more anonymous the users of the network are. Tak.io donates 276 TB of bandwidth per year to the Tor network. In the interest of full transparency, the configuration run by Tak.io's Tor nodes is public on GitHub.

Tor nodes

Statistics are updated every 15 minutes, showing a 1 hour average, to protect Tor users

Tak.io B.V.
Groeneveld 25
2286NB Rijswijk (ZH)
The Netherlands

Tel: +31 6 523 904 53
Email: reactie@tak.io

KvK: 83445161 (Den Haag)

Tak.io B.V. is 100% subsidiary of mtak Holding B.V..

Please do not contact me for sales purposes. I'm serious, I won't buy whatever you're selling. In fact, if I needed what you're offering, I'd pay up to twice the price at your competitor, just for the fact that they didn't harass me. And for you, best case scenario I ignore you. Worst case, I waste a lot of your time leading you on and not buying in the end. My PB is a 47 minute phone call. Is it really worth it?