John Golaszewski

John Golaszewski

System Engineer

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  • Timeline

  • About me

    Principal Technical Support Engineer at Oracle

  • Education

    • DeVry University

      -
      Bachelor of Engineering - BE Electrical, Electronic and Communications Engineering Technology/Technician
    • Johnson College

      -
      Associate's degree Electrical, Electronic and Communications Engineering Technology/Technician
  • Experience

    • Lockheed Martin

      Apr 1990 - Jun 1995
      System Engineer

      Magellan Spacecraft Operations - Network Engineer/Unix Stems Administrator

    • USWEST

      Jun 1995 - Dec 1996
      Unix System Administrator

      Mass Markets - Unix Systems administrator

    • TCI

      Jan 1997 - Jun 1998
      Unix System Administrator

      provided UNIX system administration support for Oracle databases

    • Lewan Technology

      Jun 1998 - Jul 1999
      Senior Unix System Administrator

      HP Unix Systems Support Specialist - provided post-sales client support

    • STORAGETEK LIMITED

      Jul 1999 - Feb 2000
      Senior Unix System Administrator

      Provided Unix Systems administration support for storage array lab environment.

    • Qwest Communications International, Inc.

      Mar 2000 - Aug 2001
      Senior Unix System Administrator

      Provided Unix System Administration support for production software application deployments.

    • Cendant Corporation

      Feb 2001 - Feb 2002
      Network Engineer

      Implemented redundant and secure enterprise data center network infrastructure. Provided high-level support and technical expertise in networking technology, including LAN/WAN hardware, switches, routers, and load balancers.

    • IBM GLOBAL SERVICES-NETWORK SERVICES

      Apr 2002 - Feb 2007
      Professional Network Engineer

      AVIS Budget Care Rental Group• Implemented highly available network infrastructure for data center and office locations.• Deployed security zone infrastructures including DMZs, Remote access, WAN integration and internet zones.• Maximized customer operational performance by solving complex network connectivity issues.• Maintained project management objectives and timeline for major deployments of network infrastructure.• Implemented network infrastructure to support Microsoft Lync unified communication system.• Designed, planned and implemented network device operating system upgrades.• Created and maintained documentation of network architecture.• Technical lead who mentored and provided guidance for team members and junior engineers and technicians. Show less

    • AT&T

      Feb 2007 - Mar 2021
      Senior Technical Consulting Engineer

      Wired and Plastic Products (WPP Corp)• Provided problem determination and resolution for worldwide network of 20K+ network devices in North America, South America, Europe, Middle East and Asia including routers, switches, wireless, security devices and load balancers.Xcel Energy• Implemented highly available and scalable Cisco Nexus fabricpath network infrastructure for Oracle database clusters, Nutanix, SAP-HANA, Unified Communication Systems, and VMWare computing environments• Implemented network infrastructure projects for Power Plants, Transmission and Distribution Centers, sub-stations, and Corporate office locations in states of Colorado, Minnesota, Wisconsin, South Dakota, New Mexico and Texas. Show less

    • Oracle

      Jul 2021 - now
      Principal Technical Support Engineer

      Providing global support for Oracle OCI IaaS, Exadata, Exadata Cloud at Customer, Private Cloud Appliance and Private Cloud at Customer products.

  • Licenses & Certifications

    • Cisco Network Security: Cisco Firewall Technologies

      LinkedIn
      Feb 2021
      View certificate certificate
    • VSphere 6.7 Professional Part 01: Managing Networking

      LinkedIn
      Feb 2021
      View certificate certificate
    • IT Security Foundations: Core Concepts

      LinkedIn
      Jan 2021
      View certificate certificate
    • Cisco CCNA (200-301) Cert Prep: Network Fundamentals and Access

      LinkedIn
      Feb 2021
      View certificate certificate
    • Cisco Certified Design Associate (CCDA)

      Cisco
      Feb 2011
    • Cisco Network Security: Secure Routing and Switching

      LinkedIn
      Feb 2021
      View certificate certificate
    • Cisco Certified Network Associate Security (CCNA)

      Cisco
      Sept 2005
    • Cisco Network Security: Secure Access

      LinkedIn
      Feb 2021
      View certificate certificate
    • Ethical Hacking: Exploits

      LinkedIn
      Jan 2021
      View certificate certificate
    • Project Management Foundations: Integration

      LinkedIn
      Jan 2021
      View certificate certificate