Varna, Bulgaria Remote (Country)

Tietoevry is hiring a Voice and Cloud Communications Provisioning & Fulfilment Engineer– Tieto Tech Consulting (m/f/d)

About the Role

Join a technical team focused on maintaining and supporting global Voice and Cloud Communication services. In this role, you'll provide advanced troubleshooting and second-line support for critical telecom platforms, ensuring high availability and optimal performance across international networks.

Key Responsibilities

  • Deliver technical support for Voice over IP and unified communications services, diagnosing and resolving complex network issues
  • Monitor and maintain network uptime and service quality, conducting both scheduled and on-demand maintenance
  • Collaborate with first-line support and customer care to investigate and resolve reported incidents
  • Engage with external vendors to escalate, track, and implement fixes within the core network infrastructure
  • Contribute to process improvements for proactive monitoring and provisioning workflows
  • Participate in an on-call rotation, supporting emergency interventions and planned network updates

Qualifications and Experience

  • Degree in Electronics, Computer Science, IT, ICT, or Telecommunications, or equivalent technical background
  • Minimum of three years in telecom operations, with hands-on experience in voice switching, provisioning, and repair—particularly within carrier or international operator environments
  • Proven understanding of telecom protocols including SS7/ISUP, SIP, RTP, and MGCP, aligned with ITU/ETSI standards
  • Familiarity with IP routing and switching in VoIP and unified communications environments
  • Experience with transmission systems and associated hardware
  • Proficiency in using protocol analyzers and signaling monitoring tools
  • Working knowledge of Unix and Linux operating systems

Preferred Expertise

  • Experience with next-generation network platforms such as Sonus or Dialogic
  • Background with session border controllers like Ribbon or Metaswitch
  • Exposure to wholesale telecom operations
  • Knowledge of emergency call routing via LRF, STIR/SHAKEN frameworks, or SIP authentication
  • Experience with FreeSWITCH, SIP registrars, or unified communications platforms such as Microsoft Teams
  • Understanding of core telephony systems including PBX, dial plans, and circuit routing
Required Skills
SS7/ISUPVoIP/SIPRTPMGCPSonusDialogicRibbon SBCMetaswitch SBCFreeSWITCHTelecom ProtocolsNetwork RoutingUnified CommunicationsVoice SwitchingProvisioningITU/ETSI Standards SS7/ISUPVoIP/SIPRTPMGCPSonusDialogicRibbon SBCMetaswitch SBCFreeSWITCHSIPTelecom ProtocolsUnified CommunicationsVoice over IPNetwork Switching
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About company
Tietoevry
A leading digital services and software company creating real digital impact for businesses and society, with a focus on digital transformation in the public sector through its Public 360° business unit.
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Job Details
Department Tech Consulting
Category infrastructure
Posted 2 months ago