Senior DevOps Engineer
Rijkswaterstaat
(Public service, 5000-10.000 employees)
Skills
I am a passionate DevOps Lead engineer with broad experience in setting up a CI pipelines and hosting mission critical software in production. I am a certified Linux and Kubernetes Adminstrator and can help your organization to transition your pipelines and workload to a container based deployment or set up a greenfield environment, be it on premis or in the cloud.
I approach infrastructure problems from a software developement perspective, meaning I highly value git based, fully automated solutions (GitOps), laying out a clear structure for the code with reusable building blocks. Quality and simplicty is key.
I prefer to work in a true DevOps environment, being responsible with my dev team(s) for building the software and succesfully hosting it in production.
Some of the technologies I have a lot of experince working with:
I approach infrastructure problems from a software developement perspective, meaning I highly value git based, fully automated solutions (GitOps), laying out a clear structure for the code with reusable building blocks. Quality and simplicty is key.
I prefer to work in a true DevOps environment, being responsible with my dev team(s) for building the software and succesfully hosting it in production.
Some of the technologies I have a lot of experince working with:
- linux administration
- ansible
- vagrant
- docker / containers
- kubernetes administration
- helm
- argo workflows / argocd
- nginx / haproxy / traefik
- prometheus / grafana
- java
- groovy
- python
- bash
- git
- maven/ npm
- jira / confluence adminsitration
- bamboo / gitlab ci / jenkins
- bitbucket / gitlab / gitea
Project history
01/2020
-
Present
Part of the CI/CD team and responsible for servicing 3 development teams at Rijkswaterstaat.
- Hosting CI/CD applications like Jira, Confluence, Jenkins, Nexus, Sonarqube, Nginx, OpenLDAP based on docker
- Developing and maintaining the CI pipeline scripts.
- Deploying our applications (Java, Angular) from Test to Productions, including 24/7 support for operations.
- Monitoring & Alerting: Graylog/ElasticSearch, Prometheus, Grafana, Pagerduty
- Setting-up HA Kubernetes cluster with Ansible ("Kubespray-light")
- Migrating CI and CD from custom-script docker based deployments to Kubernetes following GitOps principles using Helm and the Argo stack
- Hosting CI/CD applications like Jira, Confluence, Jenkins, Nexus, Sonarqube, Nginx, OpenLDAP based on docker
- Developing and maintaining the CI pipeline scripts.
- Deploying our applications (Java, Angular) from Test to Productions, including 24/7 support for operations.
- Monitoring & Alerting: Graylog/ElasticSearch, Prometheus, Grafana, Pagerduty
- Setting-up HA Kubernetes cluster with Ansible ("Kubespray-light")
- Migrating CI and CD from custom-script docker based deployments to Kubernetes following GitOps principles using Helm and the Argo stack
03/2018
-
01/2020
Senior DevOps Engineer
Nationaal Archief (NL)
(Public service, 50-250 employees)
As member of a scrum team and linking pin to the ops team I implement the continuous delivery pipeline and ensure applications are running smoothly in production.
• Set up continuous delivery pipeline in Gitlab CI (java, angular and go applications)
--> build, unit test, security checks, docker based regression tests as quality, publish artifacts, deploy to test
• Set up Docker based regression test environment
• Write Ansible scripts to provision RedHat VM's and deploy our applications, role management with Ansible Galaxy
--> Install and manage applications like Confluence, Jira, Gitlab CI, SonarQube, Nexus (either deployed with Ansible or docker based) or our in house developed backend and frontend applications
• Implement automatic database updates based on Flyway for our Java application
• Monitor and troubleshoot hosted applications in production (Icinga, Check_mk, Kibana etc)
• Set up continuous delivery pipeline in Gitlab CI (java, angular and go applications)
--> build, unit test, security checks, docker based regression tests as quality, publish artifacts, deploy to test
• Set up Docker based regression test environment
• Write Ansible scripts to provision RedHat VM's and deploy our applications, role management with Ansible Galaxy
--> Install and manage applications like Confluence, Jira, Gitlab CI, SonarQube, Nexus (either deployed with Ansible or docker based) or our in house developed backend and frontend applications
• Implement automatic database updates based on Flyway for our Java application
• Monitor and troubleshoot hosted applications in production (Icinga, Check_mk, Kibana etc)
04/2014
-
02/2018
Senior CI/CD Engineer
Keylane
(Insurance, 500-1000 employees)
• Initiated and worked on the Continuous Delivery project for the Maia Software
--> Fully automated build, deploy and database migration for our Progress application based on ANT, PCT, PowerShell, Groovy - server side and client machines (Linux / Windows)
--> Introduced Atlassian Bamboo Continuous Integration Server and short feedback cycle to dev teams
--> Helped improving automation for our .NET / C# components
• Migrated version control from Accurev to Bitbucket / GIT, established branch and merge strategy, trained the dev teams
• Improved and automated the infrastructure hosting our test environments and information systems, working tightly together with our IT department
• Member of the Keylane Technical Leadership team
• Migrated projects from legacy Bugzilla to Jira with tailor made Java-based migration software
• Acquired knowledge and experience in Java programming, the Maven build framework, Artifactory and dependency management
--> Fully automated build, deploy and database migration for our Progress application based on ANT, PCT, PowerShell, Groovy - server side and client machines (Linux / Windows)
--> Introduced Atlassian Bamboo Continuous Integration Server and short feedback cycle to dev teams
--> Helped improving automation for our .NET / C# components
• Migrated version control from Accurev to Bitbucket / GIT, established branch and merge strategy, trained the dev teams
• Improved and automated the infrastructure hosting our test environments and information systems, working tightly together with our IT department
• Member of the Keylane Technical Leadership team
• Migrated projects from legacy Bugzilla to Jira with tailor made Java-based migration software
• Acquired knowledge and experience in Java programming, the Maven build framework, Artifactory and dependency management
Local Availability
Open to travel worldwide
I live in Rotterdam and am available for remote work. Occassional traveling is open for discussion.
