Ciarán Doheny

Experience

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  NFT Distribution Operations Ltd

  May 2008 - Apr 2013

  Supervisor

  Supervising a warehouse section with between 12 - 16 members of staff

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  Imerja Limited

  Apr 2013 - Jul 2014

  NOC Shift Engineer

  Supporting managed service networks within a 24/7 secure NOC environment.The work involved a mixture of first line and service desk support.Main responsibilities included:• Proactive monitoring of customers networks and responding to alerts within specified SLAs.• Liaise with various vendors and provide a single point of contact for customers.• Working with various different vendor deployments including Cisco, Juniper, Extreme and Checkpoint.• Provide out-of-hours service desk facilities for public and private sector based customers. Show less

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  Alternative Networks plc

  Jul 2014 - Apr 2017

  Network Support Engineer

  Providing 1st and 2nd line support in a secure 24/7 NOC environment.Main responsibilities included:• Implementing security policy change requests on the Juniper SRX series.• Implementing static NAT change requests on the Juniper SRX series.• Implementing change requests on the Juniper EX series switches.• Monitor managed customer's networks and raise proactive incident tickets within agreed SLAs.• First line support of Juniper wireless networks.• Liaise and raise TAC tickets with 3rd party vendors such as Juniper, Aruba and Extreme Networks.• Preparing Juniper devices with the correct Junos and config before dispatch to the customer's site.• Raising reactive WAN support tickets, and progressing tickets, with the relevant carriers.• Mobile phone support such as SIM card swaps, mobile diverts, and barring. Show less

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  MLL Telecom

  Apr 2017 - Nov 2022

  • Being a 3rd line escalation point for BAU network issues passed on from the NOC.• Working on-call as a 3rd line escalation point out-of-hours.• Plan and implement core infrastructure changes, such as bringing new devices into the MPLS, and upgrading and replacing networking hardware.• Escalation point for provisioning and installation issues.• Implementing routing and MPLS changes, as well as troubleshoot issues routing and MPLS issues on the core network.• Liaising with customers to understand their requirements and then making changes based on this information• Create LLDs.• Making changes and troubleshooting issues on Palo Alto firewalls.• Making changes and troubleshooting issues on FortiGate firewalls.• Create CPE config template for new customer for different circuit types, such as fibre and xDSL.• Troubleshooting issues on CPEs.• Troubleshooting Aruba Wi-Fi issues. Show less Providing 2nd line 24/7 support in a secure NOC environmentMain responsibilities include:• Troubleshooting network performance and connectivity issues passed over from the 1st line team.• Implementing and troubleshooting Juniper Security policies on the SRX series.• Implementing and troubleshooting static and destination NAT solutions.• Troubleshooting VRRP issues.• Implementing and troubleshooting IPSEC VPNs.• Ensuring that networking documentation is correct and up-to-date.• Liaising with field engineers on network related issues.• Giving technical training to NOC colleagues. Show less

  • IP Engineer

    Apr 2019 - Nov 2022

  • 2nd Line Network Engineer

    Apr 2017 - Apr 2019
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  Gamma

  Nov 2022 - May 2023

  IP Design Engineer

  Working on internal core infrastructure projects.Main responsibilities include:• Building proof of concept test labs for projects.• Writing test plans, and 3rd party acceptance criteria for new projects.• Attending project meetings with internal and external teams to ensure the technical aspects of a project are being met.• Creating LLDs and internal network documentation.

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  OneWeb

  May 2023 - now

  Senior Service Support Engineer