Dan O'Sullivan Email & Phone Number

Cork, Ie

Cork, Ie

Cork, Ie

My duties in this role involve making sure all of our infrastructure is maintained and operational across all of our offices.This includes managing our 3 datacentres across the business located in Cork, London and in Hong Kong. Most of our servers are virtualized and running on VMware ESXi 6 and are a mixture of windows 2003 2008 and 2012 Key Achievements Researched, evaluated and implemented a cloud-based IP telephony system, and achieved 25% savings in the company’s phone billsRevised technology plans and policies to address technology gaps regarding security hardening methodology and virtualization.Mitigated risk of data loss and met compliance requirements at remote sites by leading project to consolidate backups to a central location.Managed IT operations and infrastructure budgets and assets. Responsible for contracts, vendor negotiations, and bid proposalsDeveloped and designed IT Infrastructure and Support departments to align with business needs and future growthImplemented 2FA and an SSO solution for all users in the business.

Cork, Ie

My job here was to provide first and second level support to our 24 offices. Located in 10 Countries. In my time working with the company I have been able to help improve several business processes including an overhaul of the email system and a similar overhaul of the AD structure as well as providing day to day support for our users and taking tickets from our helpdesk queue. I have won 4 recognition awards as voted for by my colleague’s • New user configurations in Active Directory and Google apps• Network monitoring and troubleshooting• Antivirus monitoring and troubleshooting• Software installs, troubleshooting, and patching

DOS Computer Services provides small to medium size businesses with ongoing IT support and implementation of office systems.• Pre-Sales Technical Consultancy• Solution Design & Costings• Project Management Mission Critical Implementations• Multi-Platform Installation and Support for Systems

Provided first and second level technical support for County wide IT infrastructure supporting 900+ users in 65 locations. Troubleshooted hardware, software, and connectivity issues. Challenged to provide timely resolutions to support business-critical users.• Achieved the highest levels of productivity, handling over 60 calls per week• Earned solid reputation for resolving complex issues and providing exceptional customer service• Promoted to assume additional responsibilities as part of an IT operations team.• Created a standard desktop images for employees based on job function reducing the time required to install appropriate software on a new PC by copying the appropriate image to a new computer’s hardware. • Collaborated with staff, users, and management to establish requirements for new systems and modification• Managed our Citrix Environment• Involved in writing of tenders.