Sean Janssen

Experience

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  Zucker, Goldberg & Ackerman, LLC

  May 2009 - Sept 2009

  Internship: Assistent Domain/Network Administrator

  • Created network maps using Microsoft Visio• Designed, upgraded and implemented a print server using Server ‘08• Migrated Linux servers to ESXi host

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  Claire's

  Oct 2010 - Feb 2013

  Level 3 Retail Support

  • Responsible for retail repair escalations of U.S., Canada and Puerto Rico firewall, wireless cards & modems• Utilized communication skills to troubleshoot issues with store managers, DM’s, RM’s, and TVP’s• Programmed and troubleshot all retail VPN/Firewall routers for Claire’s and Icing in North America• Developed, implemented and supported the planning and execution of all new/remodeled/closing store’s data connection, phone service and firewalls • Collaborated to create and implement a tracking system for sent/returned equipment• Worked extensively with vendors to coordinate break/fix issues at remote locations• Involved in large scale savings projects focused on majorly reducing budget redundancy Show less

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  Convey, A Sovos Compliance Company

  Oct 2013 - Oct 2015

  IT Support Specialist II

  • Responsible for auditing the security of 1,000+ systems and end user computing• Trained new IT-Support employees and managed daily tasks and training of interns• Re-engineered the Endpoint protection of enterprise infrastructure• Lead and administrated televised broadcasts of corporate technology• Managed multiple geographical hypervisor environments in VMware technologies• Corresponded with cross-functioning departments contributing to EOY budgeting• Managed enterprise communication and inventory (i.e. phones, tablets, laptops, exchange and Lync)• Assessed and addressed inefficiencies in inter-department hiring processes• Project lead in developing a Data Loss Prevention (DLP) solution Show less

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  Metafile Information Systems, Inc.

  Dec 2015 - Dec 2016

  Software Technician

  • Metafile’s proprietary software requires knowledge of SQL, XML, IMAP/POP3, ODBC connections, FTP, VPN and access rights structure• Implement and troubleshoot IIS servers for Intra-Net services• ASP team member for Metafile's SaaS platform• Assist in new client transition phase from the Implementation Team to Support Team• Knowledge in the big three ERP's (GP, SL, AX)

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  Greystone Technology

  Feb 2017 - Jan 2018

  Technical Engineer

  • Handling firewall refresh projects and troubleshooting layer 3-4 LAN/WAN issues• Understanding of FQNDS during email cutovers to new platforms (G Suite, O365, Exchange) • Managing IT for 13 small businesses: infrastructure, software licensing and owner/end-user expectation• Developing root cause analysis for clients and documentation purpose• High-level understanding of WiFi infrastructure and Ubiquiti, Unifi, Meraki administration• Troubleshooting to achieve root cause analysis for client and documentation Show less

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  CorKat Data Solutions

  Mar 2018 - Aug 2019

  • Project Lead for perspective clients and on-boarding clients• Sopho Firewall and AP Engineer• WiFi optimization expert• Design and implement Spoofing/Spear Phishing campaigns to help educate users • RDP server management, updating, and troubleshooting• Administrator of Office365: security, licensing, day to day issues, and migrations

  • Systems Engineer

    Mar 2018 - Aug 2019

  • System Administrator

    Mar 2018 - Aug 2018
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  HENSEL PHELPS

  Nov 2019 - now

  Systems Administrator/Engineer II

  • Planned, coordinated, and executed an Exchange 2010 hybrid upgrade to Exchange 2016 hybrid environment; also redirected mailflow from Exchange and Smarthosts.• Lead the project for creating a DMZ and implemented the movement of resources to the DMZ• Data Center migration Project; moving from a Dell FC640 backbone to a VxRail hosts with NSX overlay. • SolarWinds administrator (DPA, SAM, SRM, and IPAM)• Highly proficient in Dell EMC Isilon (syncIQ, SnapshotIQ, InsightIQ)• Cisco ESA/SMA administration Show less