LK

IT Engineer & Frontend Developer · Dublin, Ireland

I keep business IT secure and running, and build the websites businesses run on.

Hi, I'm Lukasz. By day I'm a Senior Field Engineer: I look after business networks, firewalls and Wi-Fi, Microsoft 365 and hybrid identity, and I hold a BSc (Hons) in LAN Cybersecurity. I also design and build websites for small businesses, end to end.

See client workRead case studies
now
Senior Field Engineer
networks
Firewalls · VPN · VLANs · Wi-Fi
cloud
Microsoft 365 · Entra ID · AD
degree
BSc (Hons) LAN Cybersecurity, ATU Mayo
building
Vue 3 · TypeScript · PHP
based
Dublin, Ireland

01

Networks, infrastructure & security

Senior Field Engineer with 4+ years keeping business IT running: firewalls and VPNs, switching and VLANs, wireless networks, Microsoft 365 and hybrid Active Directory / Entra ID, backed by a BSc (Hons) in LAN Cybersecurity.

  • Firewalls (SonicWall, pfSense)
  • Site-to-site & SSL VPN
  • VLANs & switching
  • Wi-Fi (UniFi, Aruba)
  • Microsoft 365
  • Entra ID
  • Active Directory
  • Hyper-V
  • PowerShell

02

Web development

I design and build fast, maintainable websites for small businesses, from the front end to the admin panel and deployment pipeline behind it.

  • Vue 3
  • TypeScript
  • Vite
  • PHP & MySQL APIs
  • Performance
  • SEO
  • UI design

Selected work

Websites for real businesses

Designed, built and deployed by me, and live today.

All projects

Tailoring & alterations, Dublin 15 · 2026

Stitching Fairy

Full rebuild of a Dublin tailoring business website, with a custom admin panel so the owner can manage collections, photos and prices herself.

  • Pre-rendered Vue 3 + TypeScript front end
  • PHP 8.3 API and admin panel with WebP image pipeline
  • CSRF, rate limiting and hardened sessions
  • GitHub Actions deploys with a staging site
  • Vue 3
  • TypeScript
  • Vite SSG
  • PHP
  • MySQL
  • GitHub Actions
Project detailsVisit site

Hair spa, Smithfield, Dublin · 2026

Gabriel Professional

Website for a hair spa in Smithfield, Dublin, with online booking, a gallery of client results and the salon team.

  • Phorest online booking integration
  • Swipe-enabled gallery lightbox
  • WebP images with a lighter mobile hero
  • Local SEO set-up
  • Vue 3
  • Vite
  • JavaScript
  • CSS
  • Vercel
Project detailsVisit site

Case studies

Infrastructure, written up properly

Real incidents and lab builds: the problem, how I diagnosed it, and what fixed it.

All case studies

Research paper

JITadmin access, approved and time-boxed

Least privilege in a hybrid SME

Designing and evaluating a hybrid least-privilege access architecture with Active Directory, Microsoft Entra ID, RBAC and Just-In-Time privilege elevation: meaningful Zero Trust-aligned security without a full architectural overhaul.

  • Cybersecurity
  • Zero Trust
  • Identity & Access

Homelab build

~30 srecovery time, zero data loss

SQL Server 2022 dual-layer HA

SQL Server 2022 FCI on Windows Server 2022 Hyper-V, with WSFC and iSCSI shared storage. Validated through planned failover, a forced node crash and live migration.

  • SQL Server 2022
  • High Availability
  • Hyper-V

Field case study

< 5 hfull remote recovery

Firewall recovery after ZFS corruption

A production firewall became unbootable after a power outage corrupted its ZFS filesystem. Config retrieved, OS reinstalled and configuration restored, fully remotely over a serial console.

  • Network Infrastructure
  • Firewall Recovery
  • FreeBSD

Need a website, or a hand with your IT?

I build fast, well-made websites for small businesses, and I am always happy to talk infrastructure, Microsoft 365 and security.

Get in touch