Infrastructure + Systems Engineering

Building resilient infrastructure with a security-first mindset.

I am Mat Leszkiewicz, a support engineer focused on infrastructure reliability, automation, and security operations. This portfolio captures the homelab builds, system projects, and incident response lessons that define how I work.

Infrastructure reliability Systems automation Security operations Threat response

Current role

Technical Support Engineer

Core focus

Infrastructure + automation

Security lens

Incident response, detection

Stack

AWS, Linux, Docker

Focus Areas

Infrastructure engineering

Platform reliability, system design, and performance-aware operations.

Security operations

Incident response workflows, log analysis, and detection engineering.

Automation and observability

AWS pipelines, tooling, and practical monitoring for production systems.

AI enablement

Applied AI tooling, workflow automation, and ops augmentation.

Homelab series

Ongoing infrastructure builds covering Proxmox, storage, networking, and secure remote access.

Other Projects

Recent Posts