Experienced IT consultant with 4 years of professional experience and many more years of passionate hobby experience (see links above). Specialising in DevOps, Cloud, Infrastructure as Code (IaC), HashiCorp, Kubernetes and Python. Ever since I was young, I have had a passion for experimenting with the latest software. I thoroughly enjoy both development and operations. Before becoming a consultant I was an amateur startup founder, trying my luck at a few startup ideas in Sri Lanka and Thailand. Next to my technical ability I have valuable project management skills, gained from leading complex projects from inception to completion.

Skills

Specializations

Master
  • DevOps
  • Cloud
  • IaC
  • CI/CD
  • Linux
  • Consultancy

DevOps

Master
  • AWS
  • Azure
  • Github
  • Gitlab
  • Ansible
  • Terraform
  • Kubernetes

HashiCorp

Master
  • Terraform (Enterprise)
  • Vault
  • Consul
  • Boundary
  • Packer

Artificial Intelligence

Advanced
  • ChatGPT
  • Prompt Engineering
  • Coding Assistants
  • MLOps

Programming

Advanced
  • Python
  • JavaScript
  • NodeJS
  • Bash
  • PostgreSQL
  • SQL

Editors

Advanced
  • Emacs
  • Vim
  • VSCode

Work Experience (7)

Jul 2021 - Current
Linux DevOps Professional
Adfinis
https://adfinis.com
  • Ansible
  • Python
  • Bash
  • AWS
  • Azure
  • Docker
  • Terraform
  • Vault
  • Kubernetes
  • OpenShift
  • ArgoCD
  • Boundary
  • Packer
  • Nomad
  • Consul
  • Nginx
  • HAProxy
  • Traefik (EE)
  • Gitlab
  • GitHub (Actions)
  • Jenkins
  • Okta
  • OpenID Connect
  • OAuth 2
  • Icinga2
  • SNMP
  • DNS
  • Red Hat (Satellite)
  • PostgreSQL
  • MySQL

Consultancy work around DevOps/Cloud/HashiCorp and other open source software implementations. I work for various customers using different technologies in separate projects. Both short term as well as long term engagements for mostly Dutch, Swiss and German companies.

  • Gained all technical certifications from partners HashiCorp and Gitlab

  • Leading HashiCorp Vault consultancy projects (including a HashiCorp Vault FastTrack)

  • Leading Gitlab consultancy engagements as a Gitlab Professional Services Engineer (PSE)

  • Automated complete Azure environments from top to bottom using Terraform (CAF framework)

  • Building modern Kubernetes clusters using GitOps and IaC automation from scratch

  • Building many Ansible roles and Terraform modules solving common client problems

  • Gave a presentation about Emacs Org Mode during the Adfinis techie sync days in Basel (Switzerland)

  • Building complete monitoring solutions using Icinga2

Dec 2023 - Mar 2024
Gitlab DevSecOps Engineer
NatWest Group
https://natwestgroup.com
  • Bash
  • Gitlab
  • Docker
  • Kubernetes
  • Red Hat (Linux)

Assignment for Adfinis. Member of the Enterprise Engineering team. Responsible for furthering the adoption of Gitlab (features) in the environment, while aligning the interests of all internal stakeholders.

  • Migrating Continuous Integration (CI) and Continuous Deployment (CD) workflows from legacy platforms to Gitlab (Enterprise)

  • Creating Docker base images for multiple programming languages (with primary focus on Python)

  • Implementing DevSecOps features of the Gitlab platform (Code Quality, Code Coverage, Security Scanning, Packaging, etc)

Jul 2023 - Oct 2023
Kubernetes Engineer
IFF
https://iff.com
  • AWS
  • EKS
  • Cloudformation
  • Bash
  • Docker
  • Kubernetes
  • Helm
  • Traefik Enterprise Edition (EE)
  • ArgoCD
  • Okta
  • JupyterLab

Assignment for Adfinis. Engaged as a consultant to design and implement a container-based solution on AWS for machine learning model deployment. Selected Amazon EKS after a comprehensive evaluation of potential platforms. Executed the project using agile project management, emphasizing rapid, iterative sprints focused on tangible outcomes.

  • Initiated and developed a state-of-the-art EKS cluster from the ground up using CloudFormation, Traefik and ArgoCD for GitOps-driven continuous delivery

  • Compiled comprehensive SRE procedures, including executable Jupyter notebook documentation covering maintenance, troubleshooting, disaster recovery, and other operational procedures

  • Reduced code redundancy and enhanced maintainability by employing Kustomize for effective configuration management

  • Conducted comprehensive demonstrations of the platform and provided thorough knowledge transfer

  • Implemented Okta SSO, SSL termination and automated certificate renewal with Traefik

Dec 2022 - Apr 2023
Vault Architect
European Commission
https://commission.europa.eu
  • Ansible
  • Python
  • Bash
  • Terraform
  • Vault
  • Gitlab
  • Red Hat (Linux)

Assignment for Adfinis. Member of the Vault Architects team, responsible for providing support and development of the internal Vault(-as-a-service).

  • Designing, implementing, and maintaining all Hashicorp Vault environments

  • Fully automated deployment and configuration (using Ansible & Terraform)

  • Ensure proper integration of Hashicorp Vault with existing infrastructure and applications

  • Collaborate with stakeholders and teams across the organization to determine requirements

Sep 2021 - Jan 2023
DevOps Platform Engineer
VolkerWessels
https://volkerwessels.com
  • Ansible
  • Python
  • Bash
  • Azure (DevOps)
  • PowerShell
  • Terraform
  • Packer
  • Docker
  • Nginx
  • Traefik
  • Ubuntu
  • Github (Actions & Runners)
  • Make
  • DNS
  • MySQL

Assignment for Adfinis. Member of the Cloud Competence Team. Responsible for building the internal developer platform for all the VolkerWessels divisions (from scratch). My work consisted of coding automated Azure landing zones using the Cloud Adoption Framework (CAF), Terraform and GitHub Actions.

  • Automated deployment of multiple Azure tenants from top to bottom (Infrastructure as Code)

  • Developed a comprehensive internal developer platform, reducing the time it takes for developers to spin up their own services and development infrastructure

  • Developed sophisticated pipelines to synchronise changes between multiple Azure tenants, with a single (templated) code base (using Github Actions, Ansible and Terraform)

  • Contributed ~20 accepted pull requests to the Azure CAF Terraform landing zones (developed by Microsoft)

  • Top 10 contributor to the framework (both major features and small bug fixes)

May 2020 - Jun 2021
DevOps Engineer
Digidentity
https://digidentity.eu
  • Ansible
  • Python
  • Bash
  • AWS
  • Kubernetes
  • Helm
  • Docker
  • Rancher
  • K3s
  • Proxmox
  • Packer
  • Terraform
  • Cloudformation
  • Nginx
  • Traefik
  • Ubuntu
  • Metallb
  • Cert manager
  • Wireguard
  • Gitlab
  • Gitea
  • New Relic
  • Sentry
  • Datadog
  • Quay
  • Jira
  • Confluence
  • PostgreSQL
  • MySQL

Rebuilt mission critical infrastructure for the identity providers of the British GOV.UK Verify and the Dutch eHerkenning system. These are login portals used by millions of users to safely login to government services with a verified digital identity.

  • Improved reliability by rebuilding all Kubernetes clusters with EKS, Rancher and GitOps

  • Built on-premise clusters and infrastructure using Proxmox, Ansible and K3s

  • Reduced cloud expenses by 15% and cleaned up numerous unused AWS resources

  • Architected and developed an internal VPN solution using Wireguard on AWS

  • Improved CI/CD pipelines using Gitlab and Bash

  • Migrated PostgreSQL databases to Amazon RDS

Nov 2019 - Apr 2020
Graduation Internship
WebIQ
https://webiq.nl
  • AWS
  • Google Cloud
  • Azure
  • Business case

Graduation internship. Researched, designed and compared different high availability architecture designs on the three biggest cloud providers, using the most suitable cloud services for the PHP based WebIQ CMS.

  • Evaluated both traditional virtual machine and modern container-based HA architectures for all clouds

  • Utilized drawing tools to create detailed architectural designs while considering relevant features of the selected cloud services

  • Compared SLA terms and pricing of several managed hosting companies to uncover the most suitable candidate

  • Successfully completed my studies and received a grade of 8 on my thesis

Projects (3)

thairentalmarket.com
May 2018 - Jan 2019
https://thairentalmarket.com
  • CSS3
  • HTML5
  • PHP
  • Drupal 8
  • Hetzner

Startup project I worked on during my study. Thairentalmarket.com is an online platform for discovering and comparing rental products and services in Thailand. It allows users to compare prices from multiple providers at a glance. Discontinued development due to lack of time and interest.

  • Developed an online rental marketplace for the Thai market using Drupal 8

  • Outsourced content writing and publishing to online freelancers

lakunu.lk
Dec 2018 - Nov 2019
https://lakunu.netlify.app
  • JavaScript
  • Vue.js
  • Nuxt.js
  • PHP
  • Decoupled Drupal
  • GraphQL
  • Progressive web app (PWA)
  • Netlify

Startup project I worked on during my study. Lakunu.lk is a product review website, developed to discover the best products available in the Sri Lankan market. Lakunu means both "score" and "rating" in the Sinhalese language. The project did not succeed and the original domain has expired.

  • Developed a product review website for the Sri Lankan market

  • Used Decoupled Drupal as a back-end and a Nuxt.js front-end with PWA capabilities

  • Followed entrepreneurship course at UtrechtInc

affiliate.lk
Feb 2017 - Nov 2019
https://affiliatelk.netlify.app
  • JavaScript
  • React.js
  • Next.js
  • Google Cloud
  • Docker
  • Kubernetes
  • Netlify

Startup project I worked on during my study. Affiliate.lk was the first affiliate marketing network based on the island of Sri-Lanka. Affiliate partnerships allowed e-commerce businesses to market their goods and services through commission-based promotions, primarily with the help of social media influencers on platforms such as YouTube, Instagram, and TikTok. The project did not succeed and the original domain has expired.

  • Lived in Sri Lanka for a year in an effort to pioneer the affiliate marketing model

  • Responsible for all IT related activities such as developing the website and customizing the affiliate network software

  • Learned many typical startup lessons

Education (2)

2014 - 2020
Bachelor's degree
Business IT & Management
HU University of Applied Sciences Utrecht (Hogeschool Utrecht)
  • BPMN
  • CMMN
  • DMN
  • Business Rules
  • Business Intelligence
  • Enterprise Architecture
  • ArchiMate
  • TOGAF
  • PHP
  • Python
  • SQL

Finished bachelor's degree in Business IT & Management (also known as an information systems degree). Core theme of the degree is related to the proper alignment between Business & IT. Learned about analysing, advising and designing business strategy, processes and systems. Scored an 8 for my graduation thesis.

2011 - 2013
Propaedeutic degree
Communication & Multimedia Design
Hogeschool van Arnhem en Nijmegen (HAN)
  • Product Design
  • Design Thinking
  • Photoshop
  • Illustrator
  • InDesign

Completed the first year (propaedeutic degree). Core theme of this degree is related to creativity, design and product management. This was not the right study for me.

Certificates

May 2024
Aug 2023
Jun 2023
May 2023
May 2023
May 2023
May 2023
Mar 2023
Mar 2023
Feb 2023
Feb 2023
Jan 2022
Jan 2022
Jan 2022
Dec 2021
Nov 2021
Nov 2021

Languages

Dutch

Native Speaker

English

Fluent

German

Elementary

References

“ Awesome colleague, hire now! ”
References available upon request