Support engineering · DevOps · Cybersecurity
I make complex systems easier to operate.
I’m Mat Leszkiewicz, a support engineer who enjoys debugging production problems, automating repetitive work, and building reliable infrastructure. This is where I document what I learn.
Currently a Support Engineer at n8n, based in Poland.
01 / Focus
Support engineering
Investigating difficult customer problems across APIs, integrations, networking, and self-hosted deployments.
Systems and automation
Building repeatable workflows, observability, and infrastructure that make the next incident easier.
Security mindset
Learning through incident response, threat intelligence, secure operations, and practical homelab experiments.