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Hybrid C003531 CSU Brussels Network Voice Specialist (NS) - THU 28 Aug RELAUNCH at None

None · Brussels, Belgium · Hybrid

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Deadline Date: Thursday 28 August 2025

Requirement: Network Voice Specialist

Location: Brussels, BE

Full Time On-Site: Yes

Time On-Site: 100%

Total Scope of the request (hours): 487

Required Start Date: 6 October 2025

End Contract Date: 31 December 2025

Required Security Clearance: NATO SECRET

Duties and Role

Under the direction of Head, Network Management, but largely on own initiative, the incumbent will perform the following duties:

  • Provides first and second line voice support to the Service Centre;
  • Performs diagnoses and resolve voice incidents and problems;
  • Monitors voice systems and proactively reports and resolves potential voice issues;
  • Performs software patching of Skype For Business (SFB) and Session Border Controller systems (SBC);
  • Works outside office hours or on weekends as required;
  • Seeks recommendations from his/ her superiors for technical solutions;
  • Maintains liaison with other CSU internal units, Service Lines and other technical organizations;
  • Creates and maintains Standard Operating Procedures and documentation of the supported Unified Communications systems;
  • Assists with and implements assigned project work packages;
  • Works with limited supervision;
  • Coordinates and conducts own work to meet quality targets;
  • Performs other duties as may be required

Requirements

  • NATO Secret security clearance
  • Higher vocational training in a relevant discipline with 2 years post-related experience or a secondary educational qualification with 4 years post-related experience;
  • At least 3 year experience in a similar position;
  • At least 3 year experience with operation, deployment and configuration of Unified Communications systems such as Microsoft Lync or Microsoft SFB;-Experience with Voice SBC systems;
  • A good knowledge of protocols and standards utilized in VoIP and SFB; SIP, TLS, MGCP, H.323, RTP (incl. G.711, G.729 codecs), and other similar standards;
  • Experience in utilizing SFB and SBC toolkits for troubleshooting purposes;
  • Experience with device monitoring tools such as Microsoft SCOM, ZABBIX and provide reporting and identifying devices that aren't functioning properly;
  • Experience with O&M of PABX systems;
  • Experience with Polycom provisioning systems and Polycom phones;
  • Experience with Microsoft PowerShell.

Desirable:

  • Knowledge and experience with Alcatel PABX systems
  • Knowledge and experience with AudioCodes SBCs;
  • Experience with Active Directory, GPOs and PKI certificates;
  • ITIL certificate;
  • Prior experience of working in an international environment comprising both military and civilian elements;
  • Knowledge of NATO responsibilities and organization
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