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NTT DATA Logo NTT DATA · IT - Administration

Unified Communications & Collaboration Engineer with German (Microsoft)

Romania, Brasov · Job Posted May 20, 2026
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Job Description

NTT DATA is a leading global provider of infrastructure and platform services, partnering with some of the world’s most innovative technology vendors. We help organizations modernize their IT landscapes, increase operational efficiency, and enable sustainable business growth through reliable and scalable platforms. We’re looking for passionate, curious, and motivated individuals to join our team and work with clients to translate complex technology into real business value—driving transformation, resilience, and long-term success.

Job Responsibility

  • Design, implement, and maintain enterprise voice and collaboration solutions based on Microsoft Teams, including Teams Phone and Direct Routing capabilities
  • Integrate and manage Audiocodes Session Border Controllers (SBCs), including Mediant series devices and OVOC (One Voice Operations Center) for centralized monitoring and management
  • Manage and support the VoIP backbone infrastructure, ensuring reliable connectivity between cloud-based Teams telephony, on-premises systems, SIP trunks, and PSTN networks
  • Provision, configure, and troubleshoot enterprise IP phones and ATA devices used within the unified communications environment
  • Monitor system performance and service availability, proactively identifying issues and performing root cause analysis to resolve incidents and improve service reliability
  • Troubleshoot complex issues related to voice routing, SIP signaling, telephony services, and Microsoft Teams voice features
  • Collaborate with internal IT teams, network engineers, collaboration teams, and external vendors to deliver and support unified communications services
  • Maintain technical documentation, configuration records, and operational procedures, ensuring compliance with enterprise standards and governance requirements
  • Support system upgrades, configuration changes, and lifecycle management of voice and collaboration infrastructure
  • Provide mentoring and technical guidance to junior engineers, supporting knowledge sharing and operational excellence within the team
  • Participate in on-call rotations and out-of-hours support for live streaming events and critical service incidents

Requirements

  • Bachelor’s degree in Information Technology, Telecommunications, Computer Science, or a related field, or equivalent professional experience
  • Minimum 3-5 years of experience in unified communications or voice engineering roles in enterprise environments
  • Strong expertise in Microsoft Teams voice services, including Teams Phone System and Direct Routing
  • Hands-on experience working with Audiocodes SBCs (Mediant series) and OVOC management platform
  • Solid understanding of VoIP backbone architecture, SIP trunking, call routing, and PSTN integration
  • Experience provisioning and managing enterprise IP phones and ATA devices
  • Strong troubleshooting skills related to voice infrastructure, SIP signaling, telephony routing, and collaboration platforms
  • Experience supporting enterprise-scale voice deployments and operational environments
  • Familiarity with automation and scripting (PowerShell desirable) for operational tasks and system management
  • Excellent communication and collaboration skills, with the ability to work effectively with technical teams and vendors
  • Degree in Information Technology, Telecommunications, Computer Science, or a related field, or equivalent professional experience
  • Excellent command of both spoken and written English and German

Nice to have

  • Microsoft Teams Administrator Associate certification is preferred
  • Audiocodes Certified Professional certification is desirable

What we offer

  • Smooth integration and a supportive mentor
  • Pick your working style: choose from Remote, Hybrid or Office work opportunities
  • Our projects have different working hours to suit your needs
  • Sharpen your tech skills with our sponsored certifications, trainings and top e-learning platforms
  • Private Health Insurance – it’s custom-made for you
  • Individual coaching sessions or join our accredited Coaching School
  • Epic parties or themed events – lovingly designed for our people and their families
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