Cormac O’Shea

Cloud Infrastructure • Systems Administration • Networking

Work Experience

Systems Administrator — Enovation Solutions

Learning Management Systems (Moodle); servers, vhosts, databases; network & infrastructure
Jun 2024 – Present
  • Client OS admin & deployment: Linux (Ubuntu), macOS, Windows.
  • Windows Server 2019, AD/Entra ID, DNS/DHCP, PowerShell.
  • Ubuntu server deployment, virtual hosts (MySQL), PuppetMaster18, SSL, SSH, Bash.
  • SQL setup in PHP; third-party DNS (ProBIND).
  • VMware vSphere; AWS & Azure administration, VM hosting, failover & backup.
  • Data centre racking; Cisco switch/router/firewall config; VPN; CLI.
  • ESET Web Console & endpoint AV; Nagios & Munin monitoring.
  • Google Cloud user/device admin; Microsoft 365 & Azure AD admin.
  • Ticketing: Mantis, Asana; end-user troubleshooting; vhosts & containers.

Level 2 IT Support Engineer — Children’s Health Ireland

Onsite engineer in a high-priority, post-incident environment
Jun 2023 – Jan 2024
  • First-line & onsite support via tickets, email, phone, walk-ins; strict SLA handling.
  • Install & troubleshoot in-house apps (Ward Enquiry, IPIMS) and printing solutions.
  • Office 2016/365, Teams, Webex troubleshooting.
  • On-prem AD/DC admin, groups, computers, users; file shares & permissions.
  • PXE imaging & device deployment; Windows 7/10 fleet support.

Level 2 IT Support Engineer — Eir Evo

Service desk, field engineer & systems admin across 200+ managed clients
Sep 2021 – 2023
  • First contact triage & resolution; escalation across multi-tenant queues.
  • Windows 7/10/11, Server 2012–2020, Hyper-V, VMware.
  • Build & deploy laptops/PCs; Azure, Autopilot, Intune, MDM, XenMobile, iOS portal, Citrix.
  • Microsoft 365/Teams/Exchange/AAD admin; Microsoft Defender.
  • Vendor liaison: Dell, Lenovo, HP, Sysco, Image Systems, Jet Reports, Q&A.

Systems Administrator — Charts Beds

Global support for Charts PMS (on-prem & cloud), infra admin & training
Oct 2014 – Feb 2020
  • Product learning, troubleshooting & training for Charts PMS.
  • Infra instance admin via Olympus & AWS EC2; Windows Server 2008/2012.
  • Client OS support (Windows 7/XP/Vista), documentation & staff/client training.
  • Log analysis (application & ptools); HTML.
  • 3rd-party integrations: Booking.com, Hostelworld, SiteMinder, Agoda, Expedia.
  • Global customer support (USA, UK, EU, Singapore, Australia, Africa, Canada).

Skills Snapshot

AWS (S3,EC2,IAM,RDS,EFS,SES,Cloudformation) Azure Linux (Ubuntu) Windows Server & AD Networking (Cisco) VMware vSphere PowerShell & Bash MySQL / SQL Monitoring (Nagios, Munin) Intune / Autopilot Security (ESET, Defender)

Education

  • NFQ Diploma (Level 8), Cloud Infrastructure & Networking — IT Sligo, 2022
  • Level 7 Modular Diploma, Python Programming — CCT College, 2021
  • Additional Diplomas & Certs — Various (FETAC, City & Guilds, Coursera, E-COLLEGE)

Certifications

  • AWS Cloud Practitioner — 2025
  • Microsoft Azure Associate AZ-104 — 2023
  • Microsoft Azure Fundamentals AZ-900 — 2022
  • Comptia Security+ — 2020
  • CCNA — 2021
  • MCTS/MCP — 2014
  • Google IT Support Specialist — 2021
  • Comptia A+ — 2013/2021
  • Network+ — 2013
  • FETAC L5 Computer & Network Maintenance — 2012
  • City & Guilds L2 IT Maintenance — 2012

Other Education

  • Personal Development (NFQ L6) — IT Sligo, 2022
  • E-Business & IT Applications (FETAC L5) — 2011
  • Manual & Computerised Accounts (FETAC L5) — 2011
  • Security Guarding (FETAC L4) — 2008
  • Leaving Certificate — 2007

Volounteering

  • Reserve Defence Forces — 62 Cavalry Squadron (3-star Private)2007-2013
  • New Acropilis School of Practicle Philosophy 2020-Present

Hobbies & Interests

  • Martial arts:, Nei Kung (Green Belt), Brazilian Jiu-Jitsu Blue Belt
  • Reading; travel; music festivals; mindfulness & meditation