Stefan Mateescu Email & Phone Number

Bucharest, Romania

- Reporting to the head of Voice and Video, this role is responsible for the day-to-day support of the company’s unified communications estate. - Reactively investigate and resolve faults related to the UC platforms and associated servicescomponents (Ribbon SBCs, Operator Connect, CTalk Contact Centre, Verba Compliance Recording, Datadog Monitoring, Pexip, Webex, Zoom)- Managing UC related projects (migrations, numbers porting, implementations)- Managing 3rd party suppliers including technical liaison, technical compliance- Configuration, and installation of UC components- Undertaking configuration of 3rd party equipment- Resolve technical issues- Liaising with technical and operational staff- Responsible for creating procedures such as troubleshooting guides, upgrade and migration processes- Handle escalations and resolve issues in accordance to agreed SLAs, identifying root cause of problems and outlining appropriate solutions- Support Move Add Change (MAC) activities- Ensuring systems are patched according to company and Vendor requirements

Washington, United States

* Work with the Microsoft Learning team to develop exam content for role-based certifications.* Work as a Subject Matter Expert(SME), Item writer(IR) and Technical Reviewer(TR).* Collaborate with the Content development team to develop the Objective Domains for role-based certifications.

Bucharest, Romania

- Primarily responsible with Microsoft Teams projects- Migration, design, implementation and administration of a Microsoft Teams Telephony solution- Handle wide variety of inquiries within a hybrid Teams/Skype for Business environment, ranging from general use cases to complex Direct Routing (Sonus & Audiocodes Session Border Controllers) / Conferencing / Response Group type scenarios

Bucharest, Romania

- Deliver technical and business solution to customers regarding Microsoft Teams including Voice and Video features, collaboration, and call quality.- Document and share technical best practices and insights with the internal teams.- Manage and guide a set of Office 365 customers and partners throughout their onboarding process.- Engage with customers and act as a technical consultant to prepare customer's environment moving to the cloud.- Monitor and enhance the technical performance of the team in the areas of products, customer satisfaction, technical development, as well as enhance quality and provide feedback.

Valencia, Spain

Unified Communications Administrator's scope of work:- Manage Skype for Business and Microsoft Teams Tenants- Implement and manage Microsoft Teams Direct Routing- Support, maintain and optimize the deployed Microsoft Skype for Business On-premises,Hybrid and Online infrastructures / Microsoft Teams, including integration with anxillary systems such as telephony gateways and PBX systems.- Contribute to the deployment of Hybrid and On-prem Unified Communications solutions for ICC’s customers- Support and maintain the existing SBC/SBA/CCE infrastructure consisting in AudioCodes / Sonus (Ribbon) Voice Gateways, Survivable Branch Appliances and Cloud Connector Edition Appliances- Collaborate with other teams to implement service and system monitoring, alerting and reporting of the Skype for Business and Teams services- Collaborate with other teams to define and develop documented procedures- Resolve incidents, implement and participate on the problem resolutions

Bucharest, Romania

UC Support Engineer plays a key role in team’s success by understanding and addressing complex technical issues related to the customer infrastructure for the assigned project.Key Accountabilities:• Incident, problem, change, capacity, configuration, release & asset/ inventory management for UC Equipment in scope• Analyze and tune performance of strategic network infrastructure. Use protocol analyzer to troubleshoot and verify proper operation of complex configurations/applications.• Troubleshoot end to end connectivity problems with various groups• IT Security and IT Service Continuity for the managed infrastructure• Acknowledge and take appropriate action on tickets (investigation, diagnose, updates and resolution)• Able to troubleshoot application performance or voice issues from a network perspective in a timely manner• Provide solutions in a timely fashion for all issues, ensuring that contractual agreements and client expectations are met• Troubleshoot and resolve complex network problems to ensure minimal disruption.• Document Standard Operating Procedures and adhere to company policies, guidelines, and configuration standards for all aspects of the network.

Bucharest, Romania

Provide and operate Vodafone’s latest technology services of unified communications / voice over IP solutions for global enterprise customers. Ensure high availability and optimal performance of all aspects of customer’s services. Constantly improve and optimize existing ways of working and deliver cost efficient services of high quality.Key Accountabilities:• Monitoring and troubleshooting of incidents for multiple services.• Testing and reporting service availability.• Platforms: Cisco Unified Communcation Solution – (Call manager, Unity, CUPS, CUBE, Cisco UCDM), ACME SBCs, Cisco and Juniper routers.• Services: Vodafone One Net Global Enterprise Solution, Vodafone Roaming Services.• Investigate and solve all technical issues received from Service Desk and Monitoring department in a specific ticketing tool (Remedy).• Organize conference calls to coordinate and guide to resolution any major or critical incident.• End to End Service Monitoring for the services under team responsibility.• Trouble Ticket Management according to priority and SLA.Incident management:- Managing incidents in a controlled and coordinated manner.- Collate, triage, verify and communicate the impact of incidents to the business and customers of the VCNO supported Services in scope.- Facilitate incidents through to resolution by the virtual management ofinternal and external support teams, within agreed service SLAs by using video conferencing and telephony bridge technology.- Provide Major Incident Report within 24hrs of service restoration.Communication:• Host conference calls with relevant parties across international boundaries.• Communicate regular progress updates to internal and customer stakeholders.• Communicate applicable change activities to customers.• Customer interaction for technical issues and liasing with customer support / management groups during incident troubleshooting.• Documentation and trainings for new colleagues / teams.

Bucharest, Romania

Job objective:Detect, record and solve or follow-up end-to-end fixed services recovery in order to fulfill contractual SLA and ORO's quality standards.Receive, assess, solve or follow-up resolution for the complaints related to fixed data services accordingly with the defined SLAs.Activities:Technical support for Internet, VPN, leased lines, PABX, VoIP, 3G backup, APN circuits.Configuration and troubleshooting for Cisco routers, as well as for PDH Alcatel, NEC and SIAE transmissions equipments .Troubleshooting for Alvarion WiMAX, BreezeACCESS XL, VoIP AudioCodes and One100 equipments, also for PBX circuits on MSC Alcatel and MGW Ericsson.

Bucharest, Romania

Job Purpose:Provide expertise for telco/packet (BSS/NSS/Data/VAS/Transmissions) networks monitoring and follow-up 24/7Responsibilities:• EVR (Event Report) creation and follow-up upon monitoring systems like events raising • Escalation procedure implementation and follow up inside and outside Orange Romania• Follow up and analyze the QOS indicators related to telco/packet domain targeting quality improvements and service availability• Supervision OSS (Operations Support Systems) suppliers relation management and if is the case operating the NMC(Network Management Center) integrated supervision system• Technology limited-impact operating on OSS upon support teams request to speed fault isolation;• Being an active player in crisis management processes• Acting as information gateway on ORO network fault internal(TD,other depts.) and external• Contributing to Supervision knowledge Management content creation and updating (writing Work Instructions for the new activities introduced in Supervision team activity after specialized trainings sessions )• Activity reporting related to supervision events

Bucharest, Romania

The company had about 30-40 employees. SYSWARE SYSTEMS INTEGRATION SRL was set up in January 1999, as a result of the expansion strategy in the Balkans of its parent company, ALTEC Group of Companies, one of the leaders of the Greek IT and Telecommunications market. In order to be able to provide the best response to the more and more increasing demands of the Romanian market, the company provides the latest hardware, software and telecommunications technologies in such way that to improve the business performance of its customer. The Company covers through specialized departments the complete range of activities from solutions analysis and design to equipment supply, installation, training, maintenance and on site service.Responsibilities: Software installation, computers configuration and maintenance of the internal equipment.

Master'S Degree, It&C Security Master - Cyber Security Master

Information Security, Bucharest University of Economic Studies https://ism.ase.ro/

Bachelor'S Degree, Telephony And Data Communications

Faculty of Electronics, Telecommunications and Information Technology

High School Diploma, Computer Science