Independent DevOps & MLOps consultant
From fragile pipelines to platforms your team can run.
I’m Ruben Jongejan. I help engineering and ML teams turn one-person knowledge into automated cloud systems they can understand, operate, and improve.
Enabled 50+ developers with automated, on-demand test environments. Read the case study
Featured Work
From enterprise infrastructure to open-source tools—a selection of projects that showcase technical depth and practical impact.
NXP MLOps Foundations
@ NXPDesigned AWS foundations for training and deploying production ML workloads, and delivered a Bedrock-based assistant for technical knowledge access.
rumdl
High-performance Markdown linter and formatter built with Rust. 1423+ GitHub stars, 82 lint rules, VS Code extension included.
ASML DevOps Platform
@ ASMLBuilt the platform hosting compute and analytics applications for factory yield optimization. Designed Terraform infrastructure for on-demand test clusters.
CLI Tools Suite
A growing collection of Rust CLI tools designed for both humans and AI agents. Includes proxctl (Proxmox), unifi-cli (UniFi), n8nc (n8n), and more — all with --json output and schema introspection.
Where I Can Help
Senior engineering support for teams improving delivery, cloud platforms, and production ML systems.
DevOps Consulting
Design and improve delivery pipelines that give teams fast feedback, repeatable releases, and fewer production surprises.
- Reliable delivery
- Testable infrastructure
- Team enablement
MLOps Implementation
Move ML workloads from notebooks into production with reproducible environments, automated deployment, and observable model operations.
- Production workflows
- Automated retraining
- Model monitoring
Cloud Architecture
Build cloud foundations that are secure, observable, maintainable, and ready to grow with the demands of your product.
- Scalable foundations
- Cost visibility
- Operational resilience
Infrastructure Automation
Replace repeated operational work with versioned automation and self-service tooling your team can understand and maintain.
- Less manual work
- Reproducible deploys
- Developer self-service
Selected Technical Articles
Practical notes from solving infrastructure, automation, and platform-engineering problems.
Use Obsidian Everywhere
A guide to synchronize Obsidian for free between multiple devices using S3 as backend.
Ansible Lineinfile: 9 Ways to Use It to Improve Your Playbooks
The ansible lineinfile module can be used in many different ways. Here are 9 ways to make the best use of its capabilities.
How to Keep Your Playbooks Secure With Ansible Vault
The ansible vault can be used to secure your playbooks. Read this article to see how.
Bring me the platform problem your team cannot ignore.
Share the context, constraints, and outcome you need. I will tell you candidly whether I am the right fit and what a sensible next step looks like.