Building infrastructure that lasts.
I wrote my first program at 6 and ran my first public Linux server at 12. What started with BASIC on a hand-me-down computer became a 26-year obsession with making systems work.
I've architected platforms for UK Government departments where downtime isn't an option, led DevOps and SRE teams across ministries, and delivered over £75M in cost savings by replacing expensive vendors with elegant, open-source solutions.
I still run a 24-node Raspberry Pi cluster at home (pictured) that hosts production workloads—including this website. Partly because I love tinkering, partly to prove that good infrastructure doesn't need a massive budget.
24 Raspberry Pi cluster at home
First program written at age 6
First Linux server at age 12
Open source enthusiast
Technical Expertise
I've shipped 20+ open source projects because I believe the best tools should be available to everyone—Kubernetes operators, security plugins, developer utilities, and more.
That Pi cluster in the photo? It runs K3s, Longhorn storage, Victoria Metrics, and hosts this website—proving that production-grade infrastructure doesn't require enterprise budgets.
I bring that same mindset to every engagement: pragmatic, cost-conscious, and obsessively focused on solutions that ship, scale, and let everyone sleep through the night.
"The best infrastructure is the kind nobody notices."
What's Running on the Cluster
Production-grade services running 24/7 on 24 Raspberry Pi nodes. This website is served from right here.
Core Infrastructure
- Cilium CNI & Ingress
- CoreDNS
- Cert-manager
- ArgoCD GitOps
- Reloader
- Descheduler
- VPA
Storage & Databases
- Longhorn distributed storage
- CloudNativePG (PostgreSQL)
- Redis & Dragonfly
- InfluxDB
- JetStream NATS
Monitoring (Victoria Metrics)
- Victoria Metrics cluster
- Victoria Logs
- Grafana dashboards
- Tempo tracing
- vmagent & vmalert
Security & Policy
- Kyverno policies
- External Secrets
- Goldilocks
- Kubemirror
Applications
- Telegram Bot Platform (20+ microservices)
- raczylo.com website
- n8n workflows
- Outline Wiki
- AdGuard Home DNS
- Zitadel identity
- Quake game server
Backup & Utilities
- Velero backups
- Jobs Manager Operator
- Image scanning
- ClamAV antivirus
Work History
A journey through startups, enterprises, and government departments.
Technical Architect and DevOps Lead
UK Government Department
Terraform, Pulumi, Kubernetes, Docker, AWS Stack, AWS EKS, K3S, Cilium, Vault, OIDC, Github Actions, Helm, ArgoCD, Argo Rollouts, Bash, Golang, Python, NodeJS, Change Management, Release Engineering, SRE capability
SRE Team Lead
Department for Work and Pensions (DWP)
SRE Capability, Change Management, CI / CD pipelines, Terraform, Golang, Python, Docker
Head of DevOps Profession
Ministry of Justice (MoJ) UK
Python, Golang, CloudFormation, AWS Stack, Kubernetes, Docker, Change Management, Release Engineering, SRE capability
Senior Systems Administrator / DevOps Engineer / SRE
Hailo Networks Ltd
Python, Golang, Ruby, AWS Stack, Docker, Jenkins
Senior Systems Administrator
MarkcoMedia Ltd.
Python, Jenkins
Senior Systems Administrator
Zugo Services Ltd
Python, Jenkins
Various roles ( Poland )
Available upon request
Python, Jenkins, Ruby, Ruby on Rails, C, C++, PHP, Linux, Bash
Let's Connect
Want to get in touch or stay up to date with my work? I'm always open to discussing new projects, opportunities, or just chatting about technology.