Dorin-Catalin Obrejan

Professional experience for Dorin-Catalin Obrejan

• Current , since Oct 2018

  

  Integration Engineer

  Ericsson Deutschland

  

  Baseband 6630 LTE Integration through Ericsson Network Manager (ENM) on Nokia to Ericsson swap for Deutsche Telekom, Germany. LTE and WCDMA & GSM Integration, Configuration, Operation, Troubleshooting, Maintenance and Incident solving. Configuration of TMAs, RETs and Troubleshooting as well as Optimization Support and Parameter modification. Support site engineers for troubleshooting to achieve the recommended output for newly integrated sites.

• 2 years and 2 months, Sep 2016 - Oct 2018

  

  Technical Support Engineer

  Nokia Oyj

  

  Providing second level troubleshooting and solving RAN incidents/QOS degradations on Ericsson and Huawei 2G/3G/4G equipments.

• 1 year and 3 months, Jul 2015 - Sep 2016

  

  Service Engineer

  Nokia Oyj

  

  Providing advanced troubleshooting and support for radio equipments on multiple vendors (Nortel 2G, Nokia 2G, Ericsson, 2G/3G/4G, Huawei 2G/3G/4G). Investigations/actions on PDH microwave transmission network: Ericsson Minilink CN/TN, NEC NEO/IPASOLINK, Huawei RTN. Providing first level troubleshooting for IP incidents on Alcatel 7750/7705 Routers

• 1 year, Aug 2014 - Jul 2015

  

  Incident Coordination Expert

  Nokia Oyj

  

  Incident Management Drive live critical / major / complex incident resolution. Ensure network faults are resolved well within agreed procedures Keep the troubleshooting plan progressing and ensure focus on service restoration. Day to Day Incident Follow up. Point of contact for Incident status and updates. Work closely with the front office to ensure incidents are logged, assigned and escalated in a timely fashion.

• 1 year and 3 months, Sep 2013 - Nov 2014

  

  RAN Analist

  Nokia Oyj

  

  Good knowledge in RAN 2G, 3G, 4G technology and working with Ericsson , Nortel , Nokia or Huawei OMC Analyzing faults and identifying network impact correctly. Prompt escalation and notification of major network faults. Professionally utilizing NOC systems, tools and procedures to monitor and maintain network availability and integrity. Ensure network faults are resolved well within agreed procedures. Creating tickets for the alarms on radio equipment and doing basic troubleshooting.